New Home Plumbing WA 2026 - Complete Pricing Guide

New Home Plumbing Costs in WA for 2026

New home plumbing in Western Australia sits at a specific intersection of technical compliance, builder-subcontractor relationship management, and consumer protection that every person building a new home in WA benefits from understanding before signing a building contract. The plumbing subcontract on a new Perth home is typically one of the largest single trade contracts in the build, ranking alongside the electrical and frame contracts in cost significance, and the scope of the licensed plumber's work touches every wet area, the hot water system, the sewer connection, the water service connection, the gas rough-in where applicable, and the stormwater drainage system. Understanding what should be included in this scope, what the WA compliance framework requires, and what represents genuine quality in a new home plumbing installation is the starting point for homeowners who want to engage knowledgeably with their builder on plumbing specification decisions rather than simply accepting the default package.

Perth's new home construction market has been one of Australia's most active for much of the past decade, with outer metropolitan growth corridors in the City of Wanneroo to the north (Alkimos, Eglinton, Yanchep), the City of Rockingham and Kwinana to the south (Baldivis, Wellard, Bertram), and the City of Swan and Mundaring to the northeast (Ellenbrook, The Vines) generating a consistent high volume of new residential builds each year. The plumbers who work in these corridors develop intimate familiarity with the soil conditions, the lot configurations, the standard connection distances to Water Corporation infrastructure, and the building designs favoured by the major volume builders active in each area. Selecting a licensed plumber with specific experience in the growth corridor where your home is being built is a meaningful practical advantage, as their knowledge of the site-specific conditions reduces the risk of unexpected costs during construction that can arise when a plumber unfamiliar with the local conditions encounters the specific ground profile or connection configuration for the first time.

The Water Services Act 2012 (WA) requires that all new home plumbing work be performed by a licensed plumber who issues a Certificate of Compliance for each stage of the work on completion. In new home construction, the plumbing is typically performed in two principal stages: rough-in, which covers all below-slab drain pipe installation, above-slab supply pipe routing through walls and ceiling, gas pipe rough-in, stormwater soakwell installation, and the Water Corporation sewer and water connection applications and physical connections; and fit-off, which covers the installation of all fixtures and fitware, the connection of the hot water system, final testing of all systems, and the submission of the overall compliance documentation. Each stage requires a Certificate of Compliance from the licensed plumber, and these certificates are required as part of the final building inspection and occupation certificate process under the Building Act 2011 (WA). Our plumbing services guide for WA covers the broader WA plumbing licensing and compliance framework that underpins all residential plumbing work in the state.

The National Construction Code (NCC), which applies to all new residential construction in WA, sets the minimum performance requirements for the hydraulic services in a new home, including minimum hot water delivery temperatures, pressure requirements at fixtures, cross-connection control, drainage grades, and energy efficiency requirements for hot water systems. WA adopted the NCC through the Building Regulations 2012, and compliance with the NCC's hydraulic services requirements is a condition of the building permit and the final occupation certificate. A licensed plumber installing a new home's plumbing in WA must be familiar with the NCC's current requirements and must design and install the plumbing system to meet these requirements as a baseline. The WA Department of Energy, Mines, Industry Regulation and Safety provides guidance on the NCC's adoption and the building compliance framework in WA.

WA New Home Plumbing Construction Sequence

The plumbing construction sequence for a new Perth home follows a specific order that is closely integrated with the broader building programme, and understanding this sequence helps homeowners communicate effectively with their builder and plumber about milestone expectations and the consequences of construction programme changes that affect the plumbing schedule. The first plumbing activity on a new Perth home is the pre-slab drain rough-in, where the licensed plumber installs all below-slab drainage pipework in the excavated pad before the concrete slab is poured. This stage includes the main sewer drain line from the building to the sewer inspection point at the property boundary, all in-slab horizontal drain branches connecting each wet area's floor waste, toilet connection, and basin or bath outlets, and the vent stack provisions that allow the drain system to breathe without siphoning trap water out of the fixture seals.

Getting the pre-slab drain rough-in right is critical and largely irreversible, as every fixture position, drain grade, and branch connection location is fixed in concrete once the slab is poured. The plumber's pre-slab drawings must align precisely with the floor plan and the fixture positions as confirmed by the builder, and any late changes to fixture positions after the pre-slab is installed create expensive and disruptive remediation work in the slab. Perth's volume builders often work to standardised floor plan types where the plumber has installed dozens of identical rough-ins and the probability of error is low; custom home builders and design-and-construct clients benefit from a detailed fixture schedule confirmed in writing before the pre-slab stage commences. The licensed plumber is responsible for the drain grades and configuration under AS/NZS 3500, and any gradient non-compliance in the pre-slab is the plumber's responsibility to identify and correct before the slab is poured.

Following the slab pour and frame erection, the wall and ceiling rough-in stage covers the installation of all hot and cold supply pipes through the wall framing and ceiling space, the gas pipe rough-in to each gas appliance location, the installation of the supply pipe from the water meter to the building entry point, and the installation of the vent pipes above the ceiling line to atmosphere. At this stage the plumber also installs the backing plates and pipe stubs at each fixture position that allow the fit-off stage to connect the finished fixtures precisely and quickly. Good communication between the plumber and the tiler who will later tile the bathroom walls and floors is essential at the rough-in stage to ensure that pipe stub heights, tap hole positions, and floor waste positions are set at the exact heights required by the fixture specifications and the tile layout.

The fit-off stage, which occurs after the tiling, painting, and cabinet installation is complete, is when the licensed plumber returns to connect all fixtures, install the hot water system, connect the gas appliances, set the pressure-limiting valve, install the tempering valve or thermostatic mixing valve, and perform the final pressure test and flow test of all systems. Fit-off is the stage with the highest visibility to the homeowner, as this is when the finished tapware, basins, toilets, and shower screens are installed and the bathroom takes its final form. Defects in the fit-off, such as dripping valves, poor alignment of taps in the tile cutouts, or incorrect tempering valve temperature settings, are the most common plumbing items on a new home defects list, and a plumber who takes care at the fit-off stage to install each fixture precisely and test each outlet thoroughly produces a handover with fewer defects and callbacks.

Water Corporation Connections for New Perth Homes

Every new home built in Perth metro and most of regional WA connects to Water Corporation's reticulated water supply and sewerage networks, and the licensed plumber is responsible for managing the application, approval, and physical connection to both. The water service connection involves applying to Water Corporation for a new metered service, receiving approval for the connection point and meter position, installing the service pipe from the meter to the building, and having the connection inspected and accepted by Water Corporation before supply is commissioned. The sewer connection involves applying for a permit to connect to the sewer main, installing the sewer drain from the building to the inspection pit at the property boundary, connecting the inspection pit to the Water Corporation sewer infrastructure at the property boundary, and obtaining Water Corporation acceptance of the connection.

Water Corporation connection fees are charged to the property owner separately from the plumber's installation costs and represent a significant additional cost on top of the plumber's scope. Current Water Corporation developer and property owner contribution fees for new residential connections in Perth vary by zone and connection type and are published in Water Corporation's price schedule, which is updated periodically. These fees are charged by Water Corporation directly and do not form part of the plumber's quote; a plumber who includes Water Corporation authority fees in their quote as part of an all-in price should clearly itemise the Water Corporation fees as a pass-through cost rather than a plumber's margin item. The WA Government portal links to Water Corporation's fee schedules and the current contribution requirement framework for new residential connections.

Connection distances from the building's drain and water service entry points to the Water Corporation mains in the street directly affect the installation cost of the connections, as longer pipe runs require more materials and excavation time. In established infill suburbs where mains infrastructure exists in the adjacent street, connection distances are typically short and the connection costs sit toward the lower end of the representative range. In newer growth corridor estates where the estate's internal mains are newly installed but the connection from the building pad to the street may cross a wider verge or a deep service trench, connection costs may be somewhat higher. Perth's outer growth corridors in the north and south, where Water Corporation has progressively extended its trunk mains infrastructure to service new estate developments, generally have well-planned connection infrastructure that a plumber familiar with the estate can connect to efficiently. Our stormwater drainage plumbing guide for WA covers the soakwell design and installation scope that is part of every new Perth home's plumbing programme.

NCC Hydraulic Compliance in WA New Homes

The National Construction Code's hydraulic services requirements, adopted in WA through the Building Regulations 2012, establish the minimum performance standards for water supply, drainage, sanitary plumbing, and stormwater management in new residential buildings. For a Perth homeowner building a new home, the NCC's most directly relevant hydraulic requirements cover: the minimum hot water delivery temperature at each outlet (a minimum of 50 degrees Celsius at the outlet to prevent Legionella proliferation in the hot water system, managed by the tempering valve requirement discussed further below); the minimum cold water supply pressure at each outlet; the maximum hot water delivery temperature at fixtures used by young children or the elderly (50 degrees Celsius maximum, managed by thermostatic mixing valves); drainage grade requirements for all drain pipes; cross-connection control at the property service connection; and energy efficiency requirements for hot water system selection.

The NCC's energy efficiency requirements for hot water systems are one of the more consequential compliance requirements for Perth new home builders, as they effectively mandate a minimum energy efficiency rating for the hot water system installed in a new WA home. Under the current NCC provisions adopted in WA, new homes must install a hot water system that achieves a minimum energy efficiency standard, which in practice rules out standard electric resistance storage units and drives most new Perth homes toward gas continuous flow, heat pump, or solar hot water systems. Gas continuous flow hot water from Rinnai, Rheem, and Bosch remains the most common choice in Perth suburbs with ATCO gas network access. Heat pump hot water from brands including Sanden, Reclaim Energy, Midea, and Stiebel Eltron is increasingly specified in suburbs without gas and in energy-conscious new builds. Our hot water system installation guide for WA covers the full range of system types, brands, NCC compliance contexts, and installation costs relevant to new home hot water selection.

Backflow prevention at the new home's service connection is an NCC and Water Corporation requirement, typically satisfied by the installation of a pressure-limiting valve and a dual check valve (or DCVA for medium hazard classifications) at the water meter connection. The PLV regulates the supply pressure to the NCC and AS/NZS 3500 maximum of 500 kilopascals, preventing the excessive pressure that, as discussed in the leaking tap and burst pipe guides for WA, accelerates wear of all tap and fitting components throughout the home. A plumber installing a new home's water service connection who omits the PLV or installs one that is set above 500 kPa is installing a non-compliant service that will cause premature wear across all fittings and appliances in the home. Our backflow prevention device installation and testing guide for WA covers the device selection and registration requirements relevant to new home water service connections.

ATCO Gas Rough-In in Perth New Homes

Reticulated natural gas is available in a significant proportion of Perth's residential suburbs through ATCO Gas Australia's distribution network, and gas rough-in is a standard component of new home plumbing in these areas. The ATCO network covers most of Perth's established metro area from Joondalup in the north to Mandurah in the south, but as noted in earlier guides in this series, the network does not extend to many of Perth's newer outer growth corridor estates, where development has proceeded in the post-2010 era without reticulated gas infrastructure. New home builders in Alkimos, Eglinton, Yanchep, Baldivis, Wellard, Harrisdale, and similar outer estates must plan around the absence of reticulated gas and select gas appliances that use LPG bottle supply or specify all-electric or heat pump alternatives for space heating, cooking, and hot water.

In suburbs with ATCO gas access, the licensed plumber's gas rough-in scope covers the service pipe connection from the ATCO meter to the building entry point, the internal gas pipe reticulation through the frame to each gas appliance location (typically hot water system, kitchen cooktop, and space heating outlets if included), and the installation of the appliances themselves or at least the stub connections for owner-supplied appliances. Gas rough-in work in WA is performed under a separate licensing stream from water plumbing, with gas plumbers required to hold a current gasfitting licence in addition to or instead of a water plumbing licence. A plumbing contractor offering both water and gas rough-in services for new homes in Perth will have licenced gasfitters on their team alongside licensed water plumbers. The Energy Safety WA division of DMIRS regulates gas licensing in WA and maintains the register of licensed gasfitters accessible to homeowners at Energy Safety WA.

ATCO's connection process for new residential properties involves the property owner or builder applying to ATCO for a new gas service, with ATCO installing the meter and service connection infrastructure and the licensed gasfitter completing the internal rough-in and fit-off. ATCO's connection fees and timeline vary and are separate from the gasfitter's installation costs. New Perth homeowners in areas with ATCO gas access who are deciding between gas and all-electric should confirm ATCO's current connection fees and timeline as part of their decision, as connection fees and lead times in high-demand growth corridor areas can affect the build programme.

Pipe Material Selection for WA Soil Conditions

Pipe material selection for new home plumbing in Perth is influenced by the soil conditions at the building site, which vary considerably across the metropolitan area as described in the stormwater and burst pipe guides in this series. The standard pipe materials used in Perth new home construction are cross-linked polyethylene (PEX) and CPVC for above-slab supply pipe routing, and PVC for all drain pipes. Both PEX and CPVC are suitable for the temperature and pressure conditions of Perth residential water supply, are resistant to the corrosion and scale formation that affected copper and galvanised steel pipe in some Perth water chemistry conditions, and are flexible enough to accommodate the minor building movement typical of Perth's slab construction without the joint fatigue risk that affects rigid copper pipe in reactive soil areas.

In Perth's Guildford Clay zone, which underlies the eastern suburb corridor from Midland and Guildford through Bassendean, Bayswater, and extending south through Cannington and Armadale, the seasonal expansion and contraction of the reactive clay creates differential movement in concrete slabs that translates to stress in in-slab pipe at joints and transitions. The NCC requires that new homes in reactive soil areas be designed with appropriate structural provisions for slab movement, and the plumbing rough-in must be designed to accommodate expected slab movement without creating stress concentrations at pipe connections. PVC drain pipe, which is slightly more flexible than clay pipe and uses rubber ring push-fit joints that can accommodate minor angular movement, performs better than rigid clay pipe in reactive soil conditions. For above-slab supply pipe, PEX's inherent flexibility compared to rigid CPVC makes it a preferred choice in reactive soil areas where building movement is a known design consideration.

Perth's coastal sandy soils, which underlie most of the western suburban strip and the outer growth corridor estates in the north and south, present minimal pipe stress risk from ground movement but may require attention to bedding and compaction of trench backfill around below-slab drain pipes to prevent differential settlement that could produce adverse grade changes in the drain after the slab is poured. A plumber installing pre-slab drain rough-in in sandy soil conditions should ensure that the drainage pipe bedding is correctly prepared to provide uniform support along the full pipe length, and that trench backfill is compacted appropriately before the slab reinforcing is laid. Minor settlement in sandy soil under a new drain pipe that changes the drain grade from a compliant slope to a flat or adverse slope is a known defect mechanism in Perth new construction that is entirely preventable with correct bedding practice. Our pipe relining and drain repairs guide for WA covers the assessment and remediation of drain grade problems in the context of rehabilitation of both new and existing drain systems.

Fitware Specification and Brands for Perth New Homes

The specification of bathroom and kitchen fitware - taps, mixers, showers, basins, toilets, and accessories - is the new home plumbing decision that has the most direct impact on the homeowner's daily experience of the finished home and the most significant variation in cost between builder-standard and premium specifications. Perth's volume builders typically offer a standard specification of fitware at the base contract price, with an upgrades programme allowing homeowners to pay additional amounts for improved products at each fixture position. The standard specification in most Perth volume builder programmes at the 2026 market uses Caroma or Fowler toilet suites, Clark or Caroma basin mixers and shower mixers, and Clark or Mondella basin bowls, all representing accessible price-point products with reasonable quality for standard residential use.

Mid-range upgrades in Perth new home specifications commonly introduce Methven or Caroma Liano mixers and shower heads, Caroma Urbane or Fowler toilet suites, Reece-distributed basin collections, and Grohe or Hansgrohe entry-level mixer ranges for kitchen and bathroom applications. These products represent a meaningful step up in finish quality, longevity, and aesthetic refinement from builder standard, and the cost difference at the tap and toilet level is typically $300 to $800 per bathroom over the base specification. Premium upgrade specifications for Perth luxury and custom homes introduce Brodware, Kohler, Villeroy and Boch, and Duravit fitware, Milli and Phoenix tapware for mid-to-high-end custom builds, and imported European fitware at the top end of the market. At this level, the fitware cost alone can represent $5,000 to $20,000 per bathroom, and the plumber's labour to install designer fitware precisely in calibrated tile layouts reflects the care and time required for these installations.

Kitchen tapware in Perth new homes has followed a similar upgrade trajectory, with the standard builder specification using a basic chrome mixer from Clark, Mondella, or Caroma, and the mid-market upgrade range introducing Methven, Phoenix, and Grohe kitchen mixers with pull-out spray head functionality. Boiling water tap systems from Zip HydroTap and Billi, which combine filtered chilled and boiling water delivery from a single countertop unit, are increasingly requested in Perth mid-to-upper-market kitchens and require a dedicated cold water connection, a power connection for the under-bench heating and chilling unit, and a proprietary installation process. These systems add $1,800 to $4,500 to the kitchen plumbing scope depending on the model selected and represent a distinctive upgrade to the kitchen water experience that Perth homeowners increasingly include in their new build wish lists. Our leaking tap repairs guide for WA covers the tap maintenance considerations that apply to the specific brands and ceramic disc cartridge types installed during new home construction.

Greywater and Rainwater Provisions in New Perth Homes

The decision about whether to incorporate greywater-ready rough-in, a rainwater tank connection, or both into a new Perth home is best made at the design stage before the pre-slab rough-in is installed, as the cost of providing these provisions during initial construction is a fraction of the cost of retrofitting them to a completed building. Greywater-ready rough-in involves configuring the bathroom and laundry waste pipe network to allow a future greywater diverter to be connected without accessing the slab, typically by arranging the laundry and bathroom waste connections to an accessible external boundary trap or tee-off point rather than running them directly to the sewer without any provision for future diversion. This is a minor additional cost, typically $400 to $900, at the rough-in stage that can save thousands in future slab access costs if the homeowner later wants to add a greywater system.

Rainwater tank connections to internal plumbing are increasingly included in Perth new homes, particularly in outer growth corridor estates where Water Corporation's tiered pricing and the absence of ATCO gas (meaning the hot water system runs on electricity) create a stronger financial case for water harvesting. A rainwater tank connected to internal plumbing for toilet flushing and cold water laundry supply reduces the household's potable water consumption for these uses by 30 to 40 percent in a Perth home where the tank is sized appropriately for the roof catchment and the household demand. The plumbing rough-in for a rainwater tank supply connection must include the mains switchover device with backflow protection, the pressure pump connection point, and the pipe reticulation to the toilet cisterns and laundry cold supply outlets designated for tank supply. Our rainwater tank plumbing guide for WA covers the full scope, cost, and compliance requirements for rainwater tank plumbing connections in both new and existing Perth homes.

Outdoor plumbing provisions for alfresco entertaining areas, which are a standard feature of most Perth new home designs, include taps, drainage, and in many new home specifications an outdoor kitchen connection for a barbecue and sink. The alfresco area plumbing scope typically includes a hot and cold tap at the outdoor laundry or sink location, a drain connection from the outdoor sink and barbecue to the property's drainage system, and potentially a gas connection to the alfresco barbecue or pizza oven position. The stormwater drainage from the covered alfresco paving area must be included in the soakwell system sizing, as an alfresco paved area of 25 to 50 square metres is a meaningful addition to the catchment area the soakwell system must handle. Our stormwater drainage plumbing guide for WA covers soakwell sizing calculations that include alfresco and paved hard surface catchments.

New Home Plumbing Costs Across Perth Metro

Perth metro new home plumbing pricing varies by corridor rather than suburb, reflecting the fact that the main cost drivers are the estate infrastructure conditions, the standard block configuration, and the typical build size in each growth area rather than suburb-by-suburb factors. The inner suburb infill and knockdown-rebuild market presents different cost characteristics from the outer growth corridor greenfield market, with inner suburb projects typically smaller in floor area but more complex in their connection requirements and often involving construction management approaches that differ from the volume builder programme.

Perth's inner suburb infill and knockdown-rebuild market, which has been growing as land values in established suburbs have risen and the city's urban consolidation policy has encouraged medium-density development in infill locations, typically involves more complex plumbing scopes than outer corridor greenfield builds. Infill sites in Subiaco, South Perth, Mount Lawley, and Nedlands often have older sewer mains that require the plumber to navigate a different connection process than a new estate, existing underground services that must be located and avoided during excavation, and restricted site access that affects the plumber's excavation approach. These factors, combined with the premium specification typically associated with inner suburb new builds, drive higher plumbing costs per home in these locations than in outer corridor standard volume builder projects.

New Home Plumbing Costs in Regional WA

Regional WA new home plumbing costs carry the standard regional trade premium on Perth metro rates, reflecting higher labour costs, longer supply chains, and in some remote regional areas limited local competition among licensed plumbing contractors. The South West, covering Bunbury, Busselton, Margaret River, and Dunsborough, has an active new home construction market and several established plumbing businesses, with rates moderately above Perth metro. The Goldfields and Pilbara regions have high trade costs driven by the resources sector wage influence, but the volume of new residential construction in these areas is lower than Perth metro, concentrated in the Karratha and Port Hedland townsite expansions.

The Pilbara new home construction market, primarily in Karratha and Port Hedland, is driven largely by the resources sector's need for residential accommodation for a growing workforce, and the plumbing labour rates in these towns reflect the competition for skilled trades from the resources sector's direct employment and contracting activities. New homes in the Pilbara are typically specified at a reasonable standard given the income levels of the resident workforce, but the plumbing installation cost per home is among the highest in Australia due to the labour rate premium. Homeowners building in the Pilbara should engage local licensed plumbers where available, as the mobilisation cost of bringing Perth-based plumbers to the Pilbara for a residential job adds significantly to the total project cost. The Economic Regulation Authority WA regulates the water service charges and connection fees applicable to Water Corporation's Pilbara service areas.

What to Look For in a New Home Plumbing Quote in WA

A comprehensive new home plumbing quote should specify separately the costs for pre-slab rough-in, wall and ceiling rough-in, Water Corporation sewer connection, Water Corporation water service connection, gas rough-in (if applicable), hot water system supply and installation, soakwell stormwater system, fit-off labour, and the fitware supply (or confirm whether the builder is supplying the fitware separately). Quotes that present a single lump sum for "full plumbing" without itemising these components leave the homeowner without the information needed to confirm what is included, to compare quotes on the same basis, or to understand which components drive cost differences between quotes from different plumbers.

Homeowners building through a volume builder should ask their builder which licensed plumbing subcontractor will be engaged for the home and should confirm that subcontractor holds a current WA plumbing licence and, where applicable, a current gasfitting licence. Volume builders sometimes rotate between preferred subcontractors, and confirming the plumber's credentials independently before construction commences is straightforward through the DMIRS licence register and provides the homeowner with the assurance that compliance documentation issued by the plumber on completion is valid. Homeowners building through a custom or owner-builder arrangement engage the licensed plumber directly and should follow the same licence confirmation process.

When comparing quotes for new home plumbing work, the fitware specification is often the largest source of price variation between quotes that appear to cover the same scope. A quote based on builder-standard Caroma or Clark fitware is genuinely a lower-cost quote than one specifying Methven or Kohler, and both can be legitimate outcomes for different budget expectations; the important point is that the comparison be made on a like-for-like fitware basis. Asking each quoting plumber to specify the brand and model of toilet suite, basin mixer, shower mixer, and bath/shower set they are pricing is a straightforward step that makes quote comparison meaningful. The Australian Competition and Consumer Commission provides guidance on consumer rights in new home construction contracting applicable to the plumbing subcontract component. Always verify your plumber's current WA licence through DMIRS WA before authorising any new home plumbing work. Our plumbing services guide for WA covers the overall WA plumbing licensing and compliance framework relevant to new home construction.

Plumbing Handover and Compliance Documentation

On completion of the plumbing fit-off and all final testing, the licensed plumber must issue a Certificate of Compliance confirming that the plumbing installation complies with AS/NZS 3500 and the applicable WA Plumbing Code requirements. This certificate is a mandatory document for the building's final inspection and the issue of the Occupancy Permit under the Building Act 2011 (WA), and its absence prevents the homeowner from taking occupancy. The plumber should provide the compliance certificate to the builder promptly on completion of the fit-off and final testing, and the builder should retain it as part of the building's documentation set that is handed over to the homeowner on completion. A homeowner who does not receive the plumbing compliance certificate at handover should request it specifically before signing the practical completion form.

The compliance certificate covers the plumbing work performed by the licensed plumber, but the homeowner also receives manufacturer documentation for the hot water system, any registered backflow prevention devices, and the tempering valve or TMV. These documents, along with the Water Corporation connection acceptance letters for the sewer and water service connections, form the plumbing documentation package that the homeowner should file and retain for the life of the home. They are relevant to warranty claims on installed products, to future plumbing work that builds on the existing installation, and to property transactions where a buyer or their solicitor may request evidence of compliance for the property's plumbing services.

The practical completion inspection provides the homeowner with the opportunity to check all plumbing fixtures and fittings for defects before signing the completion form. Items to check include: all taps and mixers for smooth operation and no dripping; all shower heads for correct water delivery from all outlets; all toilet cisterns for correct fill level and flush performance; all hot water outlets for delivery at the correct temperature; the hot water system itself for any visible defects or unusual noise; all visible drain pipes for correct fall and no sagging; and the stormwater soakwell system for correct connection of all downpipes. Our toilet repairs guide for WA and leaking tap repairs guide for WA describe the specific fault conditions that should be checked at each fixture during a new home acceptance inspection. For new homes incorporating a heated towel rail, our heated towel rail installation guide for WA covers the testing and commissioning checks that confirm correct operation at handover. Thermostatic mixing valve commissioning and temperature verification is covered in our thermostatic mixing valve installation and servicing guide for WA. Shower recess waterproofing and grout integrity, which should be confirmed at handover before the home is occupied, is covered in our shower regrouting and leak repairs guide for WA. Burst pipe risk management relevant to the pressure-limiting valve installed as part of the new home water service connection is covered in our burst pipe repairs guide for WA. Blocked drain prevention strategies for new homes, particularly the pre-slab drain specification and grading that affects the home's long-term drainage performance, are covered in our blocked drains guide for WA. Strata developments under construction should also review our strata and body corporate plumbing guide for WA for the common property plumbing infrastructure obligations that apply to the development's body corporate from the date of scheme registration. Greywater-ready rough-in provided during construction is the foundation for any future greywater system; our greywater system installation and maintenance guide for WA covers the system types and compliance requirements for greywater reuse in WA. The roof and gutter plumbing that forms the collection side of the stormwater system is covered in our roof and gutter plumbing guide for WA, which covers the inspection and maintenance schedule for new home gutters in their first years of service.