Residential

Home Air Conditioning Installation

Professional air conditioning installation for UK houses, flats and HMOs — sized to your rooms, wired to your consumer unit and commissioned to BS EN 378 by F-Gas certified engineers.

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From: £1,500 per room
Timeline: 1 day for single room, 2–4 days multi-room
Warranty: 5 years parts & labour

Why choose this

Ultra-quiet 19 dB indoor units for bedrooms
Reverse-cycle heating with COP 4.0+ for shoulder seasons
Neat pipework in white trunking or hidden first-fix
5-year parts & labour warranty on Mitsubishi, Daikin, LG, Panasonic

What's included

Free in-home survey & heat-load calculation
Wall or floor-mounted indoor units
Outdoor condenser on brackets or ground feet
Dedicated fused spur from consumer unit
Nitrogen pressure test + vacuum + F-Gas commissioning
Building Regulations Part P & Part L notification

What home installation includes

A domestic install typically pairs one wall-mounted indoor unit per zone with a single outdoor condenser. We drill a 65 mm core through the external wall at a downward angle for the twin copper pipes, condensate drain and interconnecting cable, then bracket the condenser on vibration-isolating rubber feet. Every installation is pressure-tested with dry nitrogen at 4 MPa, held for a minimum of 30 minutes and vacuum-pulled to 500 microns before the refrigerant charge is released.

Most UK homes are complete within a single working day per zone. Multi-room installations across bedrooms and lounges typically take two to four days depending on pipe-run complexity and whether pipework is surface-run in decorative trunking or hidden inside voids.

Which rooms benefit most

South and west-facing bedrooms with large glazing routinely hit 28–30 °C on summer nights — a 2.5 kW wall unit brings them back to 21 °C in under twenty minutes and holds it silently through the night. Loft conversions and conservatories with high solar gain often need 3.5–5.0 kW to handle the load. Open-plan kitchen-diners with bifold doors need careful sizing (typically 5.0–7.0 kW) because heat gain spikes when the doors are opened.

Home offices are the fastest-growing use case since 2020 — a small 2.0 kW unit stops CPU heat, monitor glare and afternoon sun turning a spare bedroom into a sauna. Nurseries benefit from precise humidity control (35–55% RH) which modern inverters manage automatically without over-drying the air.

Costs and running expenses

Single-room installation starts at £1,500 fully fitted; a three-bedroom multi-split lands between £4,400 and £6,200. Running costs are modest — a 2.5 kW inverter split cooling a bedroom for eight hours uses roughly 3.6 kWh (about £1.10 at 30 p/kWh). In heating mode, the same unit delivers 3–4 kWh of heat per 1 kWh of electricity, undercutting a gas boiler in mild weather.

Over a typical UK cooling season (60 hot nights) expect £45–£90 per bedroom in electricity. Heating a 25 m² lounge on shoulder-season mornings adds around £8–£14 per week. Compared with a portable AC unit that guzzles 1.4 kW to deliver 2.0 kW of cooling, a fixed split is roughly three times cheaper to run and quieter by 20 decibels.

The survey and design process

Every domestic project begins with a free in-home survey. Our engineer measures each room, checks glazing orientation, notes insulation levels and photographs the proposed indoor and outdoor positions. We calculate the sensible cooling load using CIBSE Guide A occupancy densities and add a 15% margin for future-proofing.

You receive a written fixed-price quote within 48 hours listing the exact indoor and outdoor units, pipe route, electrical route, brackets and trunking colour. Nothing is added on site without your written approval — no surprise supplements for extra metres of pipe or a second core drill. We also flag any planning or party-wall considerations before you commit.

Brands we install for UK homes

Our residential range covers Mitsubishi Electric (MSZ-LN and MSZ-AP series), Daikin (Emura, Stylish and Perfera), Panasonic (Etherea) and LG (Artcool Gallery). Each brand has genuine strengths — Mitsubishi for the quietest bedroom operation (19 dB), Daikin Emura for interior-designer aesthetics, Panasonic for the strongest heat-pump COP in cold weather and LG Artcool for the framed picture indoor unit that hides in plain sight.

All units use R-32 refrigerant, achieve A++ SEER ratings and include WiFi-enabled controllers as standard. We register the extended warranty with the manufacturer on your behalf on the day of commissioning — nothing for you to file.

Aftercare and annual servicing

An annual filter clean, drain-pan flush and refrigerant pressure check keeps the manufacturer warranty valid and protects the compressor from premature wear. Our service plan is £110 per outdoor unit per year and includes deep-clean of the indoor coil, drain test and a full electrical inspection.

Between services, homeowners rinse the pull-out filters under a tap every 4–6 weeks in summer and after any long unused period. It takes ninety seconds per unit and prevents the musty smell that comes from biofilm build-up on the coil.

How UK homes typically use their AC

Usage patterns matter for both sizing and running-cost estimation. In our post-install survey data across 400+ UK homes, bedrooms are the most-used zone (average 84 nights of cooling per year plus 60 mornings of gentle heating in shoulder seasons). Lounges follow at 45 evenings per year, and home offices lead the year-round chart with 280 hours of active use — mostly heating in winter and cooling from June to September.

Average set-point across our residential base sits at 20.5 °C for cooling and 20.0 °C for heating. Homeowners who bought the technology worried about running costs almost always over-cool at first — the sensible setpoint is 22 °C for cooling in a UK climate, not the 18 °C people default to when they arrive from a hotel holiday. Set-point discipline is the single biggest lever on running cost.

Insurance, warranty and long-term value

Home insurance policies do not automatically cover air conditioning outdoor units against theft or malicious damage — many policies exclude anything mounted externally over a threshold value. We advise clients to notify their insurer at commissioning and add a specific rider (typically £5–£15 per year premium uplift). Cable locks and tamper-evident bracket bolts are included as standard on our external installs.

Manufacturer warranties on all major brands are 5 years parts inclusive of compressor when installed by an accredited engineer. We register the warranty on the commissioning day — you do not need to file anything. Annual F-Gas service maintains the cover; skipping years voids the compressor warranty specifically, though other parts remain covered.

Preparing for install day

Move furniture 1 m clear of the internal mounting wall and the external wall the pipe route will exit through. If we are running pipes across the loft or through a floor void, clear the access hatch and any storage below it. Curtains near the outdoor unit position should be tied back so scaffold (if needed) can operate freely.

Pets and small children should be kept out of the working area for the drill phase (typically 15 minutes per core hole). Otherwise we work around normal household life — power stays on except for the final electrical connection, water and heating are untouched, and the WiFi network is not disturbed. Most clients continue working from home during installation with no disruption.

Frequently asked questions

Do I need planning permission?＋

Not for most homes. Outdoor condensers are permitted development if under 0.6 m³, more than 1 m from a boundary and not on a wall facing a highway. Flats, listed buildings and conservation areas usually need consent.

How disruptive is the install?＋

One indoor unit typically takes 6–8 hours with two engineers. We use dust sheets, sweep as we go and only need power isolated for the final electrical connection.

What warranty do I get?＋

5 years parts and labour on the equipment, plus a 12-month workmanship warranty on our installation. Annual F-Gas checks preserve the manufacturer warranty.

Can it work with solar PV?＋

Yes — inverter splits are ideal PV loads because they modulate between 400 W and 2 kW, matching typical daytime solar generation. Some smart controllers can prioritise cooling when export prices are low.

Will it work when the outside temperature is 35 °C?＋

Yes. Domestic units are rated to operate at up to 46 °C ambient. Capacity drops around 10% at 35 °C versus 27 °C rated conditions, so we size accordingly for south-facing heat-gain rooms.

How long does the equipment last?＋

A properly commissioned inverter split lasts 12–15 years. The compressor is the wear item; PCBs and fan motors typically outlast it. Annual servicing extends life by 30–40%.

Can I run it from a smart meter tariff?＋

Yes — Octopus Cosy, EDF GoElectric and OVO Heat Pump Plus all reward off-peak use. Modern inverter units accept schedule optimisation via the app so cooling can pre-run in cheap windows.

Do you install for landlords and BTL portfolios?＋

Yes — with tenant liaison, gas-safe-style commissioning certificate and photo pack for your compliance file. Volume discounts on portfolios above 5 units.