Cassette Air Conditioning Installation VIC 2026 - Get Free Quotes

What Cassette Air Conditioning Costs in Victoria

Cassette installations in Victoria cluster into three price bands, and the room decides which one applies to you. A compact cassette serving a bedroom, study or small office lands between $3,000 and $5,500 supplied and installed. The mainstream residential job, a 7.1kW four-way cassette over a living area, runs $4,500 to $7,000. Large open-plan spaces and small commercial rooms push into 10kW and beyond, where $6,000 to $12,000 covers the range and three-phase power enters the conversation. Every figure assumes a workable ceiling void, and the section on voids below explains what happens to the price when there is not one.

The spread inside each band is mostly labour, and four site factors drive it. Pipe run length between the indoor and outdoor units matters, since most quotes include the first few metres and charge per metre after that. Access above the ceiling matters more, because an installer who can stand in a roof space works twice as fast as one threading pipe through a 350 millimetre gap on their stomach. Condensate drainage is the third factor, free when gravity cooperates and $250 to $600 when a lift pump has to do the work. The fourth is electrical, covered in its own section, and it is the one that produces the unpleasant surprises.

Replacement jobs price differently to first installations, usually in your favour. Where a cassette is replacing a cassette, the penetrations exist, the drain exists and often the circuit exists, so the labour shrinks toward a long half day and the quote leans toward the hardware. Grille sizes differ between brands though, so the ceiling trim may still need adjusting to hide the old opening. The trap is pipe compatibility, since older R22 and R410A pipework cannot always be reused for a current R32 unit without flushing or replacement, and an installer has to inspect before promising the cheap version. The wider trade-in and upgrade picture sits under air conditioning replacement and upgrade, and it applies to cassettes as much as to wall splits. Timing a replacement before the old unit dies outright is what keeps the choice unhurried.

Said plainly, a cassette is rarely the cheapest way to cool a room. A wall-mounted split of equal capacity costs $1,000 to $2,500 less installed, because nothing has to be cut into a ceiling. What the extra money buys is distribution and absence, air thrown evenly in four directions from the middle of the room and no box on any wall. Buyers who want the look but not the price of several cassettes usually land on a mix, cassettes in the open living space and wall units in bedrooms, priced together on one visit.

What a Cassette Actually Is

A cassette is a split system in which the indoor unit sits above the ceiling instead of on a wall. The working parts, the fan, the coil and the filters, live in a box recessed into the ceiling void, and the only visible element is a flat grille sitting flush with the plaster or the tile grid. Refrigerant pipes connect it to an outdoor unit exactly as a wall split's do, so there is no ductwork anywhere in the system. The outdoor unit itself is the same hardware the equivalent wall split uses, sited on a slab or brackets with the same clearance rules. The centre of the grille draws room air in, and the edges throw conditioned air out along the ceiling in two, four or 360 degrees depending on the model.

The two common physical formats matter when quoting. Compact cassettes present a grille around 600 by 600 millimetres, sized to drop into one tile of a standard suspended ceiling grid, and cover capacities up to roughly 5kW. Full-size models step up to a grille around 950 millimetres square, carry capacities from 5kW to 14kW and need correspondingly more void depth. Round-flow designs, which Daikin popularised, discharge air around the full circumference of the grille instead of from four discrete slots, softening the corners of the throw pattern in square rooms.

The ceiling position changes how the room experiences the machine. Air arrives along the ceiling and falls evenly instead of blowing across the room at head height, so the draught complaints that follow wall splits in small rooms mostly disappear. Noise behaves well too, since the compressor is outside and the fan is above the plaster, and current four-way cassettes run their low fan speeds in the low 30s of decibels. The one habit worth building is filter access, because the filters live behind the grille above head height and a stepladder is part of every clean. Position the unit where a ladder can actually stand, not over the stairwell void.

Controls are the same family as any modern split. A wireless remote is standard, wall controllers are an option on every major brand, and WiFi modules bring the unit into an app or a broader smart home automation setup. Pick the control style at quote time, since a wall controller cable costs least while the ceiling is already open. Zoning in the ducted sense does not apply, since each cassette conditions its own room, which is precisely the appeal for households that only want to run the room they are in.

Cassette, Wall Split or Ducted

The honest comparison starts with the wall split, because it is the default for a reason. A split system installation of the same capacity costs less, installs in half a day and asks nothing of the ceiling. A cassette justifies its premium in rooms where the walls cannot carry a unit, glass on two sides, cabinetry on the third, or where the room is deep enough that a wall unit would freeze the near end to reach the far one. Open-plan kitchen-living areas across Melbourne's renovated housing stock are the textbook case, and cafes and consulting rooms follow the same logic commercially.

Against ducted air conditioning, the cassette trades whole-house coverage for room-by-room independence. Ducted conditions every room from one indoor unit through a duct network and costs five figures to do properly, and it remains the right answer for households that want every bedroom conditioned invisibly. Cassettes suit the household that wants serious capacity over one or two big spaces without paying to condition hallways, and they avoid duct losses entirely because there are no ducts to lose heat through. Plenty of Victorian homes end up with both logics in play, ducted upstairs and a cassette over the extension the ducted system never reached.

Evaporative systems still cool a share of Victorian homes, and owners replacing them face a genuine fork. An evaporative cooling installation costs less to run in dry heat but does nothing in humid weather and nothing at all for winter, while a reverse-cycle cassette heats and cools with the same hardware. The refrigerated option wins on Melbourne's sticky February days and on every cold morning, which is why so many evaporative replacements move to reverse-cycle, with reverse cycle air conditioning carrying that comparison in full. Households keeping the evaporative unit for dry days often still add one cassette over the main living space for the humid ones. Running two systems by season is common through Mildura, Swan Hill and the dry north. The cassette handles the sticky weeks and the winter, and the evaporative unit covers the dry January afternoons cheaply.

Cost of ownership rounds out the comparison between the three systems. A cassette holds no ductwork to clean and one filter set per unit, its serviceable parts are reachable through the grille, and a competent air conditioning service visit covers it in under an hour. Whatever the system type, the broader pricing picture across all of them sits under air conditioning cost, the useful page while the decision is still system-shaped instead of brand-shaped. Working through that page first tends to shorten every quote conversation that follows.

Sizing a Cassette for Victorian Rooms

Victoria sizes air conditioning for winter as much as summer, because a reverse-cycle cassette that cools a Melbourne January must also heat a Ballarat July, and heating is the harder duty in most of the state. A unit sized only for summer gets found out by the first frosty week of July. The rough residential arithmetic starts at 125 to 150 watts per square metre for cooling in a standard-height room and moves up with glass area, ceiling height and orientation. A 7.1kW four-way cassette covers most living areas between 30 and 55 square metres, a 10kW unit stretches over open plans toward 80, and past that point two smaller cassettes usually beat one enormous one.

Two cassettes instead of one is not extravagance in a long room. A single unit at the centre of a 12 metre kitchen-living-dining strip throws hard to reach both ends and cycles against itself in the middle, while two 5kW units, one a third of the way in from each end, run gentler and quieter, and cover the space more evenly. The two-unit layout also lets the kitchen end run cooler than the couch end, which one machine can never do. The hardware costs more; the comfort difference in the room is what people actually notice. An installer who measures the room and asks about glazing before naming a capacity is doing sizing, and one who quotes 7.1kW to every house is doing sales. West-facing glass in Melbourne's summer is the single input that moves the answer most.

Insulation moves the answer more than brand brochures admit. An uninsulated 1960s ceiling leaks heat in both directions and forces the next capacity size up, while topping up the batts costs a fraction of the jump from 7.1kW to 10kW and pays back every quarter afterwards, and that is how ceiling and wall insulation enters the quoting conversation. High ceilings in period homes add volume the wattage rule underestimates, so Victorian-era rooms with 3.3 metre ceilings size a step above their floor area. The installer's heat load numbers should mention the ceiling height, and it is fair to ask where they got it. Guesswork at this step is what oversized units are made of.

Oversizing is the quiet sizing mistake, and cassettes are not immune. A unit far too large for the room starts and stops constantly instead of settling into a steady run, never dehumidifies properly in muggy weather and wears its compressor with all those starts. The right size runs longer at part load, which inverter compressors are built for and which the efficiency figures assume. An installer can show the capacity tables from the manufacturer's data book on request, and the good ones bring them up unprompted. Bigger is not the safe choice here; matched to the room is the safe choice.

The Ceiling Void Decides the Job

Every cassette conversation should start above the plaster. A full-size cassette needs roughly 250 to 350 millimetres of clear depth in the ceiling void depending on the model, plus room to get pipes, drain and cable to it, and compact models shave that to around 250. A conventional pitched roof with a walkable space passes easily. The check takes five minutes with a tape through the manhole and settles half the quote before anyone climbs a ladder. The places that fail are flat and skillion roofs over extensions, apartment slabs with no void at all, and the increasingly common trussed roofs, where one of the truss's internal timbers crosses exactly where the unit wants to sit. Newer estates fail this test more often than older suburbs, because prefabricated trusses fill the void with timber.

Joists and trusses are structure, not obstacles to cut. A cassette that lands between joists on a conventionally framed ceiling installs cleanly, and one that lands on a truss has to move, because truss members must not be cut without an engineered fix. Good installers measure the grid above before quoting a position, then agree the final location with you inside a margin of a few hundred millimetres. Where the framing forces the unit off-centre, the four-way throw is forgiving, and the louvres on each side adjust independently on current models to trim the pattern back toward even. Off-centre by half a metre is invisible in daily use, so hold out for structure, not symmetry.

Rooms with no usable void still have cassette-shaped options. A dropped bulkhead can create the depth across part of a ceiling, boxing the unit neatly over a kitchen run or along one side of a room, and bulkhead and pelmet installation is priced as its own small building job alongside the mechanical work. The alternative is accepting a different indoor unit type in that room. An under-ceiling console, which mounts to the ceiling surface rather than inside it, delivers similar throw with zero void at the cost of a visible box. Consoles price close to cassettes of the same capacity, so the choice is aesthetic rather than financial.

Cutting the aperture is routine plasterwork but it is still a hole in a ceiling, and ceilings vary. Plasterboard cuts predictably, ornate period lath-and-plaster does not, and a water-stained or sagging ceiling should be repaired before a ten kilogram grille hangs off it, which is where ceiling repairs join the project. A day of plaster work before the mechanical trade arrives is cheaper than a callback after. Insulation displaced around the unit has to be dressed back to the housing, not left mounded on top of it, since the unit needs its clearances and the room needs its batts doing their job.

Condensate Drainage and Lift Pumps

Every cassette makes water the whole time it is cooling. Cooling pulls moisture out of the room air and it collects in the unit's drain pan, litres of it on a humid day, and that water has to leave the ceiling void reliably for years. Drainage is the least glamorous line on the quote and the one most worth reading twice. Gravity is the preferred carrier, a drain line falling continuously from the unit to a legal discharge point, and where the layout allows it, gravity drainage is the cheapest and most trouble-free part of the whole job.

Ceilings rarely offer much fall, which is why lift pumps exist. Most current cassettes include a built-in condensate pump that raises water several hundred millimetres out of the pan, enough to get up over a joist line and away, and external pumps handle the layouts that need more. A pump adds $250 to $600 where it is not built in, plus a maintenance habit, because a failed pump with a blocked float switch is the classic cause of a stained ceiling under a cassette. Annual servicing includes clearing the pump and its float, which is most of why the service visit earns its fee. Ask the installer where the water goes, how it gets there and what happens if the pump stops, and expect specific answers to all three.

The discharge end has rules of its own. Condensate cannot simply dribble onto a neighbour's side or into a wall cavity, and the drain run needs a tundish or air break where it meets any sewer connection, which keeps drain gases out of the unit. Runs through cold roof spaces in Ballarat, Bendigo and the state's high country deserve insulation on the drain line, since a frozen or sweating drain causes the same ceiling stain as a failed pump. None of this is expensive at installation time; all of it is expensive after the plaster has let go. Ask for the drain route to be marked on the quote so nothing is improvised at installation time.

Safety trays and float switches are the belt and braces worth having above a good ceiling. A secondary tray under the unit with its own overflow, and a float switch that shuts the unit down before the pan can overflow, together turn a drainage failure into a service call instead of a plaster replacement. On a unit over a kitchen island or a bed, that is cheap insurance, and installers fit them without argument when asked at quote time. Some brands include the float switch as standard, so ask what the quoted model already carries.

Electrical Work, Switchboards and Three Phase

Most cassettes up to 10kW run on a dedicated single-phase circuit, and the circuit is the electrical job. A new run from the switchboard to an isolator beside the outdoor unit, sized to the manufacturer's specification, is standard electrical services work, and it must be done by a licensed electrician who certifies it with a Certificate of Electrical Safety, the COES. Some installers carry the electrical licence in-house and others bring a sparky with them, and either model is fine as long as the certificate arrives. The certificate is not a courtesy, it is the document that ties the circuit to a licence, and it belongs in the same folder as the unit's warranty card.

The switchboard decides whether that circuit is simple. Boards across Melbourne's older suburbs still carry ceramic fuses, no safety switches and no spare ways, and a new air conditioning circuit is regularly the trigger for a switchboard upgrade that was coming anyway. Finding this out inside the quote beats finding it out on installation morning, so a photo of the open board should travel with every quote request. An installer who asks for that photo unprompted has met enough full switchboards to know better than to guess.

Three-phase enters at the big end of the range. Cassettes from about 12.5kW, and some 10kW models, are built for three-phase supply, which most Victorian houses do not have, and bringing three-phase into a property is a distributor-and-electrician project priced in the thousands, not the hundreds. For a single large room the practical answer is often two single-phase cassettes instead of one three-phase monster, which also buys redundancy, since one unit failing no longer means a dead room. Shops and cafes on commercial premises usually have the supply already, which is one reason the big cassettes are so common above them. A quick call to your electricity distributor confirms what supply the property actually has.

While the electrician is there, the small add-ons are cheap. A WiFi module, a hard-wired wall controller in place of the remote, or a controller position that suits the room's use all cost least on installation day, and pairing the cassette with an existing ducted system's controls is a job for thermostat and zone controller installation rather than an afterthought. One visit produces one certificate and one tidy invoice. Retrofitting any of it later means paying a second call-out for ten minutes of work.

Licences, ARCtick and the Victorian Paperwork

Air conditioning installation in Victoria sits across two licensing systems, and a compliant job touches both. The refrigeration side, handling refrigerant and making the pipe connections, requires a refrigerant handling licence under the national ARCtick scheme run by the Australian Refrigeration Council, and businesses trading in refrigerant hold their own authorisation. The scheme exists because refrigerants are potent greenhouse gases when vented, and the licence is checkable in minutes at arctick.org before anyone connects a pipe. Venting refrigerant is an offence as well as a waste, which is why recovery equipment is part of any legitimate decommissioning.

Victoria adds a layer most states do not, because refrigerated air conditioning work is treated as a specialised class of plumbing work in this state. Practitioners are registered or licensed in the mechanical services classes under the state plumbing framework, now administered by the Building and Plumbing Commission, and plumbing work of $750 or more comes with a compliance certificate the practitioner lodges. The practical translation for a householder is short: the person connecting your cassette should hold the plumbing registration and the ARCtick licence, the electrician holds the electrical licence, and the paperwork from each should land in your inbox without being chased. The regulator publishes its guidance for consumers at bpc.vic.gov.au.

Larger projects pull in the general building rules. Domestic building work over $10,000 in Victoria requires a major domestic building contract with the protections that come with it, and work over $16,000 requires domestic building insurance, thresholds a multi-cassette fit-out can cross without feeling like a building project. Consumer guarantees under the Australian Consumer Law sit over all of it, with Consumer Affairs Victoria publishing the contract rules and the ACCC the guarantee framework. None of this paperwork slows a good installer down, which is rather the point of asking for it. The installers who resist paperwork on principle are the ones the paperwork exists for.

The standards behind the work are the quiet quality floor. Refrigerating systems and their installation are covered by Australian Standards published through Standards Australia, the National Construction Code governs the building side through the Australian Building Codes Board, and manufacturers will not honour warranty on installations that ignored their engineering data. A quote that names the standard practice it follows, pipe sizing from the manual, a nitrogen pressure test before commissioning, a vacuum pulled to specification, is describing the difference between an installation and an attachment. The words cost nothing to include, which is exactly why their absence says something.

Brands and Models in the Victorian Market

The cassette market in Victoria is dominated by the Japanese majors, and the ranking changes less than the model numbers do. Daikin's round-flow cassettes are the volume seller and the reference point most quotes get compared against, with the compact 600-square series covering small rooms. Mitsubishi Electric runs a close second with a strong four-way range and controls that integrate cleanly into building systems. Fujitsu and Panasonic price a notch under the two leaders with little practical difference in a home, and Toshiba, LG and Samsung round out the field with competitive hardware and thinner installer bases in some regions.

Midea, Haier and the other value brands have closed most of the engineering gap and stand behind longer warranties than they used to, and the honest case for them is price on rooms that are not mission-critical. The honest case against is parts and service depth, since a Daikin board is on a Melbourne shelf this afternoon and a value-brand board may be a fortnight away in February. Commercial buyers weight that difference heavily; a household with one cassette over the living room can reasonably take the saving. The middle path many installers suggest is a premium unit in the room that runs daily and value hardware anywhere occasional.

Warranty terms across the majors run five years parts and labour on residential installations, with the cover tied to installation by a properly licensed installer and commissioning records kept. Registration of the unit with the manufacturer is a ten minute job that shortens every future service call. Keep the commissioning sheet with the warranty card, because claims lean on both. Whatever the brand, insist that the unit delivered matches the unit quoted, since ranges turn over yearly and a superseded model at the current model's price is a quiet margin trick worth catching. Supersession is not always a loss, to be fair. Last year's model at a written-down price can be the best value in the room, as long as the discount is on the invoice rather than imaginary.

Efficiency labelling gives a fair comparison across brands. The zoned energy rating label rates heating and cooling for Australia's three climate zones separately, and Victorian buyers should read the cold-climate heating figure, not the headline cooling stars, because winter is where a Victorian unit accumulates its running hours. Two units of equal capacity can differ meaningfully on that figure, and over a decade of Victorian winters the better one pays its price difference back. Retailers rarely volunteer the zone figures, but the label and the registry both carry them.

Multi-Head Systems and VRF

One outdoor unit can feed several cassettes, and for space-poor blocks that is often the whole reason to do it. A multi-split air conditioning installation connects two to five indoor units, cassettes, wall splits or a mix, to a single outdoor unit, trading a little efficiency and some independence for one condenser instead of three on the side of the house. Each cassette in a multi arrangement prices around $2,500 to $4,500 plus the shared outdoor unit, and the arithmetic starts favouring multi at three indoor units and up. Below that count, two separate splits are usually simpler and cheaper to service.

The design catch with multi systems is what the trade calls diversity, meaning how much of the total the system assumes runs at once. The outdoor unit is usually smaller than the sum of the indoor units, on the sensible assumption that not every room runs flat out at once, and a good designer sets that ratio to the household's real pattern. A family that really does run four rooms hard on a 40 degree evening needs a bigger outdoor unit or two smaller systems, and the installer should ask about usage rather than assume it. When one outdoor unit serves the whole house, its failure also idles the whole house, which is the redundancy argument for splitting large homes across two systems.

VRF, variable refrigerant flow, is the commercial-grade extension of the same idea, running many cassettes off large outdoor plant with individual control per room. It is the standard fit-out for offices, medical suites and hospitality floors, priced and designed as commercial air conditioning rather than by the residential metre. Fit-out leases often dictate the brand and the mechanical contractor, so tenants should read the lease before quoting. The residential relevance is the crossover buildings, the shop with a dwelling above, the large home office wing, where a small VRF or a big multi both fit and quotes for each are worth seeing side by side. The VRF quote often surprises people by being closer than expected.

Period Homes, Apartments and Difficult Buildings

Melbourne's period housing takes to cassettes better than people expect, with caveats. High Victorian and Edwardian ceilings leave generous voids under pitched roofs, and a cassette preserves exactly the walls and cornices owners of these homes care about. The caveats are the ceilings themselves, since ornate roses and lath-and-plaster demand careful cutting and sometimes rule a particular position out, and heritage overlays in the inner suburbs can constrain where the outdoor unit may sit on a visible elevation. Local council heritage rules govern the outside; the inside is between you, the plaster and a careful installer. A quick call to the council's heritage adviser before quoting settles the condenser question for the price of a phone call.

Apartments run the opposite problem, concrete above and no void at all in most slabs. Cassettes only work in apartments with a suspended or built-down ceiling, meaning a second ceiling hung below the slab with a gap between, which some warehouse conversions and top-floor units have, and every apartment install needs the owners corporation's position on penetrations, condenser placement and drainage before a deposit changes hands. Put the request to the strata manager in writing and keep the approval with the contract. Balcony condenser rules, noise limits and drainage paths across common property are standard clauses in Melbourne strata bylaws, and the installer who has worked your building before is worth a premium purely for knowing where the last three condensate drains went.

Flat-roofed extensions, skillion additions and garage conversions sit in between, with shallow voids that fit some compact models and not others. This is where the measured survey earns its keep, because a model that needs 298 millimetres in a void that offers 285 is not nearly a fit, it is a bulkhead, a console or a different room for the unit. Skylight shafts, sarking, solar conduit and old wiring all live in the same shallow zone, and the installer's first visit with a tape and a torch is the cheapest part of the entire project. Photographs taken in the void during that visit belong in the quote file, because they settle later arguments about what was knowable.

Rebates, Running Costs and the Victorian Angle

Victoria runs an incentive scheme that can touch a cassette purchase, and the time to check it is before signing, not after. The Victorian Energy Upgrades program discounts some reverse-cycle installations through accredited providers, with the deepest support aimed at replacing old gas heaters and inefficient units, and the eligible product lists and discount amounts move as the program evolves. The Essential Services Commission administers the scheme, current rules sit at esc.vic.gov.au, and an accredited installer applies any discount inside the quote rather than leaving you to claim it later. If a quote mentions a VEU discount, ask to see the price with and without it, which keeps the discount honest. Providers who cannot show both numbers are marketing, not discounting.

Running costs in Victoria are a heating story with a cooling epilogue. A modern cassette heats at three to five units of heat per unit of electricity, which is why reverse-cycle has displaced so much gas heating across the state, and the same unit cools through the short sharp summer at modest cost. On a time-of-use tariff, pre-heating or pre-cooling in the cheap window trims the bill further without touching comfort. The habits that matter are the same ones every efficient household already knows, set 20 to 21 degrees in winter rather than 24, use the timer instead of heating empty rooms, and keep the filters clean, since a clogged filter taxes every hour the fan runs. Each degree of winter set point is worth several percent on the bill, which compounds quickly across a Victorian June to August.

The service load on a cassette is light but not optional. A cassette wants its filters cleaned a few times a season by whoever owns the stepladder, and a professional clean and check every year or two, coil, drain pan, pump float and refrigerant performance, which is ordinary air conditioning servicing work priced around $150 to $300. The failure that punishes neglect is the drain, as the condensate section explained, and five minutes of float-switch testing at each service is what keeps that theoretical. When cooling fades or ice appears on pipework, that is a fault call rather than a service, and air conditioning repairs covers what those visits cost.

What to Look Out For

The quote without a site visit is the one that changes later. Cassettes live or die on void depth, framing positions, drain falls and switchboard capacity, none of which can be seen from a phone, so a firm price given sight unseen is either padded to cover the unknowns or destined to move on installation day. The credible process is a measured look above the ceiling and at the board, then a fixed price with the model number, the pipe allowance and the drainage method written down. Anything less is an estimate wearing a quote's clothes.

Check the licences by name and number, because this trade has a specific pattern of corner-cutting. The refrigerant connection needs an ARCtick licence, the Victorian plumbing framework covers the refrigeration work with its own registration and a compliance certificate at $750 and above, and the circuit needs an electrician who issues a Certificate of Electrical Safety. The operator doing all three legally either holds multiple tickets or brings the right people, and the invoice will show it. The operator quoting hundreds less usually resolves the difference by skipping one of them, most often the electrical certificate. A missing certificate surfaces at sale time, when the building inspector asks for it and nobody has it.

Watch the commissioning shortcuts you cannot see from the ground. Correct practice pressure-tests the pipework with nitrogen, pulls a vacuum to the manufacturer's figure before releasing refrigerant, and records the readings, and skipping those steps is invisible on day one and expensive in year three when moisture has eaten the compressor from inside. Ask whether test and vacuum readings will be recorded on the commissioning sheet. Installers who do it properly answer instantly, because the sheet is already on their clipboard.

Be sceptical of capacity inflation and brand switching. Quoting 10kW where 7.1kW fits adds margin and worsens comfort, so ask how the size was calculated and expect an answer in square metres, glazing and ceiling height, not vibes. The same scepticism applies to a quote that names a premium brand and a contract that leaves the model line blank, since ranges turn over and substitution is easiest where nothing was pinned down. Get the model number on the quote and check it against the box, then photograph the nameplate for the invoice file.

Getting Comparable Quotes

A cassette job quotes accurately when the request carries five facts: the room dimensions and ceiling height, what sits above the ceiling as best you know it, where the outdoor unit could go, a photograph of the open switchboard, and how the room is used through the week. Those five let an installer shortlist models and flag the risks before visiting, and the visit then confirms rather than discovers. Add a photo of the ceiling itself if it is anything other than flat plasterboard. A floor plan, even hand-drawn, does the work of three phone calls.

Comparable quotes name the same things: the exact model and capacity, the pipe run allowance and the rate past it, the drainage method including any pump, the electrical scope and who certifies it, the removal of any old unit, and the warranty on both hardware and workmanship. Where one quote is hundreds under the rest, the difference is almost always hiding in one of those lines rather than in generosity. Two quotes built on the same named scope tell you more than four built on adjectives. Keep the losing quotes too, since they are your bargaining position if the winning installer's price moves on the day. A price that moves without a scope change is a negotiation, and negotiations go better with alternatives in hand.

Timing the purchase well is worth real money in this trade. Installers across Victoria book out from November to February and quote accordingly, while autumn and early spring are the season for keen pricing, faster booking and unhurried work, and a heating-capable cassette bought in March is ready for the winter that actually drives Victorian running hours. Replacing a dying unit on the first 38 degree week costs the most and chooses from whatever is in stock. The air conditioning installation hub carries the broader market picture whenever the decision widens past cassettes.

Posting the job with the five facts above reaches licensed installers across Melbourne and regional Victoria in one pass, and the first responses do their own filtering. The quotes that arrive with a model number, a licence number and a question about your ceiling are the shortlist, and the one-line prices are the ones to pass on. On a purchase that lives in your ceiling for fifteen years, an afternoon of comparison is the best-paid time in the whole project. The installer you choose will also be the one you call for the first service, so choose someone you would happily call.