Understanding Gas Fitting Costs in Western Australia
Gas fitting covers the installation, modification, and maintenance of gas supply pipework and the connection of gas appliances within residential and commercial properties. In WA, natural gas from the Dampier to Bunbury Natural Gas Pipeline supplies the Perth metropolitan area and major South West centres, while LPG serves properties outside the natural gas network. The cost of gas fitting work varies with the complexity of the installation, the distance the gas line must travel from the existing supply to the new appliance location, and whether the existing gas infrastructure has sufficient capacity to support additional appliances.
Gas fitters in WA typically charge an hourly rate of $100 to $160 plus materials, or provide fixed-price quotes for defined jobs. Simple connections where a gas bayonet point already exists and the appliance just needs connecting cost at the lower end of the range. New gas line runs that require pipe routing through walls, under floors, or along external walls cost more due to the additional labour and materials involved. If your gas fitting requirement is part of a larger project, such as a kitchen renovation or the installation of a new hot water system, coordinating the gas work with the broader project schedule can reduce costs by eliminating standalone call-out fees.
Every gas fitting job in WA requires a compliance test and the issuance of a gas compliance notice (previously known as a Notice of Completion) that is submitted to Energy Safety WA (Building and Energy). This notice confirms that the gas installation has been tested, is gas-tight, and complies with AS/NZS 5601 and the applicable WA regulations. The cost of preparing and submitting this notice is typically included in the gas fitter's quote, but it is worth confirming this upfront. Without a valid compliance notice, a gas installation is technically non-compliant, which can create problems with insurance, property sales, and future gas work on the same system.
Gas Bayonet Point Installation
A gas bayonet point is the connection fitting recessed into the wall or floor that portable gas appliances such as heaters plug into. Installing a new gas bayonet involves running a gas pipe from the nearest existing gas supply point to the desired location, fitting the bayonet into the wall, pressure testing the new line, and issuing a compliance notice. The cost ranges from $150 to $400 depending on the distance from the existing gas supply, the route the pipe must take, and the building construction type.
Short runs where the new bayonet is close to an existing gas line, such as adding a second bayonet in a living room that already has gas supply to a nearby kitchen, sit at the lower end of the range. Longer runs that require pipe routing through multiple rooms, penetration of external walls, or routing beneath the building sit at the upper end. If the gas bayonet is for a heater that will be used during WA's cooler months, having the work done during summer avoids the busy winter period when gas fitters experience peak demand and response times may be longer.
The choice between copper pipe and polyethylene pipe for the gas line affects both cost and installation method. Copper pipe is used for internal runs and exposed external locations, while polyethylene is used for underground sections. Your gas fitter will determine the most practical routing for the new gas line based on your property's layout and existing gas infrastructure. If additional bayonet points are likely to be needed in the future, having the gas fitter install a slightly larger diameter supply pipe during the initial run saves the cost of upgrading the pipe later.
Gas Cooktop and Oven Connections
Connecting a gas cooktop to an existing gas bayonet point is one of the simpler gas fitting jobs, costing $150 to $300 including the flexible gas connector hose, connection, testing, and compliance certification. If a gas bayonet already exists in the right location behind or beneath the kitchen bench, the connection is straightforward. If the cooktop position has changed due to a kitchen redesign or if no gas bayonet exists at the cooktop location, a new gas line must be run to the correct position before the appliance can be connected, adding to the cost based on the distance involved.
Freestanding gas oven and cooker connections follow the same process as cooktop connections, with the gas connector running from the bayonet to the appliance. Built-in gas ovens that sit within cabinetry require careful attention to ventilation and clearance requirements specified by the appliance manufacturer and AS/NZS 5601. Your gas fitter will check that the installation meets these requirements and that the oven's gas consumption does not exceed the capacity of the existing gas supply to the kitchen. If you are upgrading from an electric to a gas cooktop or oven as part of a kitchen renovation, the gas line extension should be coordinated with the kitchen installer to ensure the bayonet is positioned correctly before cabinetry is installed.
Gas cooktops are increasingly popular in WA kitchens due to the instant heat control and lower running costs compared to electric alternatives. Major brands including Bosch, Fisher and Paykel, Smeg, and Ilve all offer models designed for Australian natural gas, with most also available in LPG configurations for properties outside the natural gas network. The gas fitter will confirm that your appliance is configured for the correct gas type before connecting it, as running a natural gas appliance on LPG or vice versa is dangerous and can damage the appliance.
Gas Heater Installation
Gas heater installation costs $300 to $800 for the gas fitting component, which covers the gas line run to the heater location, connection of the heater, compliance testing, and certification. The heater unit itself is an additional cost, with portable gas heaters starting from $300 and fixed wall-mounted or freestanding units costing $800 to $3,000 depending on heating capacity, brand, and features. Flued gas heaters that vent combustion gases outside through a wall or roof flue add installation complexity compared to unflued portable units that simply plug into a bayonet.
Flued gas heater installation requires not only the gas connection but also the installation of the flue terminal through an external wall or into the ceiling space, which must comply with clearance and ventilation requirements set out in AS/NZS 5601. The gas fitter handles both the gas connection and the flue installation for most residential heater brands. If the heater is replacing an older unit in the same location, the existing flue opening may be reusable, reducing the installation cost. For new flue locations, the cost of cutting through the wall and fitting the flue terminal is included in the installation quote.
Ventilation requirements for gas heaters are an important safety consideration that your gas fitter will address during installation. Flued heaters vent combustion products outside and draw combustion air from the room, requiring adequate room ventilation to operate safely. Unflued heaters release both heat and combustion products into the room and have strict limitations on room size and ventilation under the WA regulations. Energy Safety WA provides guidance on gas heater safety that every WA household using gas heating should be familiar with. If your gas heater installation is accompanied by other plumbing work such as a hot water system installation, coordinating the gas work into one visit reduces overall costs.
Gas Hot Water System Connections
Connecting a gas hot water system involves both plumbing work on the water supply side and gas fitting work on the gas supply side. Many WA plumbers hold both plumbing and gas fitting licences, allowing them to complete the entire installation in a single visit. The gas fitting component of a hot water system installation costs $200 to $500, covering the gas line run from the existing supply to the water heater location, connection to the appliance, and compliance testing. This is separate from the plumbing costs for water connections, which are covered in our hot water system cost guide.
Gas storage hot water systems and instantaneous (continuous flow) systems have different gas connection requirements. Storage systems operate on a lower gas consumption rate to maintain tank temperature, while instantaneous systems require a high gas flow rate during operation to heat water on demand. Instantaneous systems often require a larger diameter gas supply pipe to deliver sufficient gas flow, and if the existing gas line to the installation location is undersized, it may need upgrading. Your gas fitter will calculate the gas demand of the new system and confirm whether the existing supply is adequate before beginning the installation. Brands such as Rinnai, Rheem, Bosch, and Dux all manufacture gas hot water systems designed for Australian conditions, with each brand having specific gas supply requirements detailed in their installation manuals. The gas fitter must follow both the manufacturer's installation instructions and AS/NZS 5601 requirements, and any deviation from these specifications could void the product warranty and create compliance issues with Energy Safety WA.
Relocating a gas hot water system from one position to another, such as moving it during a bathroom renovation or laundry renovation, involves extending or rerouting the gas supply as well as the water connections. The gas fitting component of a relocation costs $300 to $600 depending on the distance between the old and new positions. In some cases it may be more economical to install a new gas line to the new location and cap off the old one rather than extending the existing pipe, and your gas fitter will recommend the best approach for your specific layout.
Full Property Gas Reticulation
Gas reticulation for a new home or a property being connected to natural gas for the first time involves installing a complete gas pipework system from the meter to all appliance locations throughout the property. This includes the main gas supply line from the meter position to the house, branch lines to each appliance location, bayonet points for portable appliances, and connections for fixed appliances such as cooktops and hot water systems. Full property gas reticulation costs $1,500 to $3,000 depending on the number of gas points, the distances involved, and the building construction.
New home construction gas fitting is coordinated with the builder's construction schedule, with the rough-in (running gas pipes through walls and under floors before cladding and flooring are installed) completed during the frame stage and the final connections and testing completed after the building is enclosed. Retrofit gas reticulation in existing homes is more expensive because the gas fitter must route pipes around existing structures, through wall cavities, and sometimes externally where internal routing is not practical. The retrofit cost includes making good any wall penetrations and ensuring that exposed pipework is neatly installed and properly supported.
Gas meter installation or upgrade is sometimes required when a property's gas demand increases significantly, such as when adding a gas hot water system and gas heating to a property that previously only had a gas cooktop. ATCO Gas handles meter installations and upgrades in the Perth metropolitan area and the South West, and there may be a fee for the meter work that is separate from your gas fitter's charges. Your gas fitter can advise whether a meter upgrade is needed based on the total gas demand of all connected and planned appliances.
Outdoor Gas Installations
Outdoor gas connections for barbecues, pizza ovens, and alfresco kitchen appliances have become increasingly popular in WA as the climate encourages outdoor entertaining throughout much of the year. An outdoor gas bayonet installation costs $200 to $450 depending on the distance from the existing gas supply to the desired outdoor location. The outdoor bayonet must be a weatherproof model rated for external use and positioned according to clearance requirements from combustible materials, boundaries, and openings to the building interior. Running a permanent gas line to an outdoor cooking area is a significant upgrade over refilling portable gas bottles and provides uninterrupted gas supply for frequent entertainers.
Alfresco kitchen gas connections for built-in barbecues, wok burners, and outdoor pizza ovens may require multiple gas points in close proximity, each with its own isolation valve. A dedicated outdoor gas circuit with two or three connection points costs $400 to $800 for the gas fitting component, depending on the pipe run length and the number of appliances. If the alfresco kitchen is part of a broader outdoor living area construction, having the gas pipes laid during the slab pour or before paving is installed saves significant cost compared to retrospective installation through finished hardscaping.
Gas fire pits and outdoor gas heaters extend the usability of outdoor spaces during Perth's cooler months and require permanent gas connections similar to indoor heater installations. The gas demand of outdoor heating appliances can be substantial, and your gas fitter will calculate whether the existing gas supply capacity is sufficient before committing to the installation. If your outdoor gas project also involves plumbing work such as an outdoor sink connection or an extension of your bathroom plumbing to an outdoor shower, coordinating both trades under a single dual-licensed contractor streamlines the project.
Gas Safety and Maintenance
Regular gas appliance servicing is essential for safety, efficiency, and longevity. Gas heaters should be serviced every two years, gas hot water systems according to manufacturer schedules (typically every five years for storage systems), and gas cooktops inspected whenever the gas system is being serviced. A gas service visit typically costs $120 to $250 per appliance and includes cleaning burners, checking flame pattern and colour, inspecting gas connections, and testing for leaks. Poorly maintained gas appliances can produce carbon monoxide, a colourless and odourless gas that poses a serious health risk in enclosed spaces.
Signs that a gas appliance may need servicing include yellow or orange flame colour instead of the normal blue, soot deposits around the appliance or on walls and ceilings nearby, a pilot light that frequently goes out, or a noticeable gas smell during operation. Any of these symptoms warrants an immediate service call from a licensed gas fitter. If you suspect a gas leak, turn off the appliance and the gas supply to it, ventilate the area, and call a gas fitter or ATCO Gas on 13 13 52 for assessment.
LPG Gas Fitting
Properties outside the natural gas network rely on LPG supplied in bottles or from bulk storage tanks. LPG gas fitting follows the same installation standards as natural gas but involves different pipe materials for certain sections and different regulator settings. LPG operates at a higher pressure than natural gas and has different combustion characteristics, meaning appliances must be specifically configured for LPG use. The gas fitting cost for LPG installations is similar to natural gas work, with additional costs for bottle changeover valves, regulators, and the external pipework connecting the LPG storage to the house.
LPG bottle installations for residential properties typically use either two 45-kilogram cylinders in an automatic changeover configuration or a bulk tank for higher consumption properties. The changeover valve system allows one bottle to be in use while the other serves as a reserve, with a visual indicator showing when the active bottle is empty and the system has switched to the reserve. Your gas fitter installs the regulator, changeover valve, and runs the gas line from the bottle location to the house entry point. The bottle location must comply with clearance requirements from doors, windows, ignition sources, and boundaries, which your gas fitter will verify during installation.
Converting appliances between natural gas and LPG requires changing the burner orifices and adjusting the gas pressure regulator, and must be completed by a licensed gas fitter. If you are moving from a natural gas property to an LPG property or vice versa, confirm with your gas fitter that all your appliances can be converted before assuming they will work on the new gas type. Some appliances can be easily converted using manufacturer-supplied conversion kits, while others may not be economically convertible. Gas safety regulations in WA apply equally to natural gas and LPG installations and are overseen by the Department of Energy, Mines, Industry Regulation and Safety.
Compliance and Licensing in Western Australia
Gas fitting in WA is strictly regulated due to the safety risks associated with gas installations. All gas fitting work must be performed by a person holding a current gas fitting licence or permit issued by the Plumbers Licensing Board. Many plumbers in WA hold both plumbing and gas fitting licences, but a plumbing licence alone does not authorise gas work. Verify that your tradesperson holds the appropriate gas fitting credential before allowing them to work on any gas installation.
Every gas fitting job requires a gas compliance notice to be lodged with Energy Safety WA (Building and Energy) within the required timeframe after completion. This notice confirms that the gas fitter has tested the installation and that it complies with AS/NZS 5601 and the Gas Standards Act 1972 and its regulations. Without a valid compliance notice, the installation is non-compliant and may create issues with insurance coverage, property sales, and future gas connections. Always ask your gas fitter for a copy of the compliance notice and keep it with your property records.
Gas appliances installed in Australian homes must be certified for Australian conditions and carry the relevant approval marks. The Standards Australia framework and the Australian Gas Association certification scheme ensure that appliances meet safety and performance requirements. Your gas fitter is responsible for confirming that the appliance being connected is certified and is configured for the correct gas type (natural gas or LPG). Consumer protection for gas fitting work and products falls under the jurisdiction of the Department of Commerce, which handles complaints about workmanship and product quality.
What to Look for When Getting Gas Fitting Quotes
Describe the work as specifically as possible when requesting gas fitting quotes. Include the type of appliance being connected, the approximate distance from the existing gas supply to the desired location, the building construction type, and whether any existing gas infrastructure is in place. If you are requesting gas work as part of a larger renovation, provide the renovation plans so the gas fitter can quote accurately for the pipe routing. A clear brief reduces the need for multiple site visits before quoting and helps avoid surprises once work begins.
Ask whether the quote includes the gas compliance notice and testing. Reputable gas fitters include compliance certification in their quotes as standard, but some may list it as a separate line item. The compliance notice is not optional; it is a legal requirement for all gas fitting work in WA. If a gas fitter is reluctant to provide compliance certification or suggests skipping it, this is a serious red flag and you should engage a different tradesperson.
If the gas fitting is part of a broader project involving plumbing, ask whether the gas fitter also holds a plumbing licence or whether separate tradespeople will be needed. A dual-licensed plumber and gas fitter can complete both the plumbing and gas components of a hot water system installation or a bathroom plumbing project in a single visit, saving both time and money. If you suspect your property may have a gas leak, mention this when getting quotes so the gas fitter comes prepared to test the system and can address any safety concerns as a priority.
Regional Considerations for Gas Fitting in WA
Perth metropolitan gas fitting benefits from the extensive natural gas network supplied by ATCO Gas, with natural gas available to the majority of residential properties across the metro area. Gas fitter availability is strong, pricing is competitive, and all common gas fittings and components are readily available from local suppliers. If your Perth property is not yet connected to the gas main but a gas main runs past your property in the street, ATCO Gas can arrange a new gas service connection, after which a licensed gas fitter installs the internal reticulation from the meter to your appliance locations.
The South West corridor from Mandurah through Bunbury to Busselton has natural gas coverage along the main transport routes, with good gas fitter availability in the larger centres. Properties outside the natural gas corridor in the South West use LPG, with numerous suppliers servicing the region. If you are building or renovating in the South West and gas is available, connecting to natural gas during construction is far more cost-effective than retrofitting later, and the running cost savings over LPG make it a worthwhile investment. Bunbury and Busselton have several plumbing businesses with dedicated gas fitting capabilities that service the broader South West area, and response times for scheduled work are comparable to the Perth metro area. For properties in Margaret River, Dunsborough, and the surrounding wine region, coordinating gas fitting with broader renovation or construction work helps justify the travel component of the gas fitter's quote. Holiday rental properties in the South West should ensure that all gas installations carry current compliance notices, as property managers and booking platforms increasingly require evidence of safety compliance for insurance and guest safety purposes.
Regional and remote WA properties outside the natural gas network rely entirely on LPG for gas-powered appliances. Geraldton, Kalgoorlie, and the Pilbara towns have local gas fitters who service LPG installations. In remote areas, coordinating gas fitting with other plumbing and maintenance work during a single tradesperson visit minimises travel costs that are a significant component of the total job cost in remote locations. Properties also needing hot water repairs, tap repairs, or toilet repairs benefit from bundling all work into one scheduled visit. Remote mining camps and station properties should ensure their LPG installations are inspected regularly as specified in the WA government regulations, as deterioration can go unnoticed in harsh environmental conditions.