New aircon install priced honestly — labour, copper piping per foot, BTU/HP sizing by room, single vs multi-split and the wiring a 3HP unit needs, with the copper rate itemised before work starts.
Installation is quoted in two parts that people often confuse: the labour and standard materials to fit the unit, and the unit itself, which you buy separately. A clean back-to-back install — indoor and outdoor on the same wall with a short pipe run — is the cheapest scenario; the price climbs with longer copper runs, concealed piping, higher floors and bigger units. Here is the labour picture for the Klang Valley (market estimate 2026, standard materials, unit not included):
| Installation scenario | Indicative labour | Notes |
|---|---|---|
| Wall unit, back-to-back (≤3 m / ~10 ft pipe) | RM300 – RM650 | Cheapest fit; standard bracket & drainage |
| Wall unit, extended piping (3–8 m) | RM400 – RM750 | Extra copper & casing add to this |
| Ceiling cassette / concealed unit | RM700 – RM1,500 | More labour, false-ceiling access |
| Extra copper piping (per foot) | RM30 – RM60 | Supply & fit beyond the included length |
| Trunking / PVC casing (per metre) | RM20 – RM40 | Neatens exposed pipe runs |
| Hacking & patching (concealed pipes) | RM150 – RM400 | Chasing pipe into the wall & making good |
The single biggest swing on most jobs is the distance between the indoor unit and the outdoor condenser — which is all about copper.
A proper install is more than hanging a box on the wall. A standard fit should include the indoor bracket and the outdoor mounting (wall bracket or floor stand), a short included run of insulated copper pipe (commonly around 8–10 ft — confirm the exact length in your quote), the condensate drainage hose, the interconnecting control wiring, vacuuming the pipework before releasing the gas (this removes moisture and is skipped by cheap installers, which shortens the compressor’s life), and a test run to confirm cooling and check for leaks. What is usually extra: copper beyond the included length, trunking to tidy exposed pipes, concealed piping with hacking and patching, a longer or higher outdoor mount, and any electrical work if a dedicated point is needed. Ask for these to be itemised, so a “cheap” headline price does not balloon on the day.
The copper refrigerant pipe joining your indoor and outdoor units is the part that most often surprises people on the bill, because “aircon installation price including copper pipe per foot” is exactly what many only think to ask about too late. A standard install includes a short length — often about 8–10 ft — and anything beyond that is charged per foot, typically RM30–RM60 per foot supplied and fitted, depending on pipe gauge and whether it is insulated and cased. It adds up fast: an outdoor unit placed at the far end of a condo balcony, or a compressor dropped to the ground floor of a double-storey, can need 20–40 extra feet. Two honest tips: keep the indoor and outdoor units as close as the layout sensibly allows to cut the run, and always get the included length and the per-foot rate in writing before work starts. Insist on proper insulated copper — skimping here causes the pipe to sweat and drip, which people later mistake for a ceiling leak.
Getting the size right is the most important decision you make, and it is measured in BTU (cooling power) or the rough-and-ready HP (horsepower) shorthand. Too small and the unit runs flat-out and never cools; too big and it short-cycles, wastes electricity and leaves the room clammy. As a Klang Valley rule of thumb (bump up one size for a west-facing room, a high ceiling, a top-floor unit under a hot roof, or a kitchen):
| Unit size (HP) | Cooling (approx. BTU) | Suited to |
|---|---|---|
| 1.0 HP | ~9,000 BTU | Small bedroom, up to ~150 sq ft |
| 1.5 HP | ~12,000 BTU | Master bedroom or small living, ~150–250 sq ft |
| 2.0 HP | ~18,000 BTU | Living / dining, ~250–350 sq ft |
| 2.5 HP | ~24,000 BTU | Large or open-plan living, ~350–450 sq ft |
| 3.0 HP | ~28,000 BTU | Very large hall / small shop, ~450–600 sq ft |
These are starting points, not gospel — ceiling height, glass area, sun exposure and how many people use the room all shift the answer. For a quick estimate tailored to your room, try our free aircon BTU / HP calculator before you buy.
A single-split system is one indoor unit paired with one outdoor unit — the standard, cheapest and easiest to service arrangement, and what most rooms get. A multi-split connects two, three or four indoor units to a single outdoor condenser, which is the answer when you have several rooms to cool but limited space for outdoor units — the classic Klang Valley condo problem where the balcony or ledge only fits one compressor. Multi-split saves outdoor space and can look tidier, but it costs more up front, the pipe runs are longer and more complex, and if the shared outdoor unit fails, every connected room loses cooling at once. For a house with room outside, several single-splits are usually cheaper and more resilient; for a condo with one small ledge, a multi-split may be the only practical route. It is a decision worth making at quoting time, not after the units are bought.
Aircon is an electrical load as well as a plumbing job, and the bigger the unit the more that matters. A 1.0–1.5 HP unit usually sits comfortably on a suitably rated circuit, but a 2.5–3.0 HP unit draws heavy start-up current, and a common real-world search — “3HP aircon single phase wiring requirement, switchboard trip” — comes from exactly this: a large unit wired onto a shared or under-rated circuit that trips the breaker every time it starts. The right approach is a dedicated circuit from the DB box with a correctly rated MCB and cable sized for the load, checked by a licensed electrician — not a large aircon spurred off the nearest socket. Most Klang Valley homes on single-phase supply can run one or two large units fine on dedicated circuits; a house adding several big units at once is where the whole DB board and incoming supply deserve a proper look. The electrical side — DB upgrades, dedicated points, rewiring — is covered in our house rewiring cost guide.
The unit itself is bought separately from the installation, and price tracks brand tier and size. Indicative Klang Valley pricing for a quality inverter wall unit (market estimate 2026):
| Unit size | Indicative unit price | Notes |
|---|---|---|
| 1.0 HP inverter | RM1,200 – RM2,000 | Value brand at the low end, premium at the top |
| 1.5 HP inverter | RM1,500 – RM2,800 | The most common bedroom / small-living size |
| 2.0 HP inverter | RM2,300 – RM3,500 | Living / dining rooms |
| 2.5 HP inverter | RM3,000 – RM4,500 | Large or open-plan spaces |
| 3.0 HP inverter | RM3,800 – RM6,000 | Very large rooms; check the wiring load |
Value brands like Midea sit at the lower end and premium names like Daikin, Panasonic or Mitsubishi at the upper — how the brands differ on price, features and repair is set out across our aircon repair guides and aircon types guide.
How the copper and drainage are routed changes both looks and cost. Exposed piping in a neat PVC trunking is cheaper, faster and easy to service later — the standard for most installs and retrofits. Concealed piping, chased into the wall and plastered over, looks cleanest and is usually done during a renovation before tiling and painting; it costs more because of the hacking and making-good, and a leak or blockage later is harder to reach. The right choice depends on timing: if you are renovating anyway, concealed piping planned in advance is worth it for the finish; for a unit added to a finished room, tidy exposed trunking is the sensible, cheaper option. Deciding this up front avoids the expensive mistake of hacking a finished wall after the fact.
Not every install is a wall split. A ceiling cassette sits flush in a false ceiling and blows in four directions — popular in offices, shops and larger halls — and costs more to install because of the ceiling access and heavier unit. Ceiling-exposed and floor-standing units suit spaces where a wall mount will not do. Each has its place, and each carries its own labour rate above the standard wall split — a cassette in particular needs a false ceiling to house it and more hands to lift and level. For a home, a wall split is almost always the practical choice; cassettes and ducted systems belong in commercial fit-outs and large open-plan rooms. Whatever the type, the sizing and copper-run principles above still decide most of the cost.
A bargain installation is the most expensive kind when it is done badly, because the failures land on the compressor — the priciest part. The corners cut on cheap jobs are predictable: skipping the vacuum stage so moisture and air stay in the pipes and quietly wreck the compressor; using thin, un-insulated copper that sweats and drips (then gets misdiagnosed as a building leak); flaring joints poorly so gas slowly escapes and the unit goes warm in months; hanging the outdoor unit somewhere unserviceable; and wiring a big unit onto an under-rated circuit that trips. None of these show on day one — the unit cools, you pay, they leave — and all of them surface within a year. Paying a fair rate for a vacuum-tested, properly piped and correctly wired install is cheaper than a compressor replacement, and it is the difference between a unit that lasts a decade and one that limps for three years.
You can protect yourself with a few simple habits. Get the quote itemised — labour, the included copper length, the per-foot rate for extra pipe, trunking, and any electrical work — so nothing is a surprise on the day. Fix the outdoor unit’s position and the pipe run before agreeing a price, because that is the biggest variable. Buy the right size rather than the biggest, using the sizing table or our BTU calculator, so you are not paying for capacity you cannot use. Confirm the installer vacuums the system and leak-tests it. And treat a headline price that seems far below everyone else with suspicion — it usually means a corner is about to be cut where you cannot see it. Send us your room sizes and a photo of where the units will go, and we will quote it plainly.
ClickBina installs air conditioning across Kuala Lumpur and Selangor — sizing the unit properly for the room, running and insulating the copper correctly, vacuum-testing before charging, and wiring larger units on a dedicated circuit so nothing trips — with the copper length and per-foot rate itemised up front, not sprung on you on the day. We also service and chemical-wash units and repair every major brand, so it is one team for the life of the aircon. Tell us your room sizes and where the units will go on WhatsApp — try our BTU calculator first — and we reply within the hour with an honest, itemised quote.
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