UK · Nationwide

Air Conditioning Installation

F-Gas certified air conditioning installation across the UK — from a single bedroom split to full-building VRF. Fixed-price quotes, directly-employed engineers, 5-year parts and labour warranty and full Part L / Part P compliance handled end-to-end.

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From: £1,500 per indoor unit
Timeline: 1 day single split — 2–6 weeks multi-storey commercial
Warranty: 5 years parts & labour

Why choose this

F-Gas company certificate (Refcom Elite) and Part P registered
Directly-employed engineers — never subcontracted labour
Fixed-price quotes with no on-site supplements
5-year manufacturer parts & labour warranty on tier-1 equipment
Same-week surveys inside the M25, 7–14 days nationally

What's included

Free site survey and CIBSE heat-load calculation
Written fixed-price proposal within 48 hours
Full drawing pack — pipe routes, electrical schedule, structural loading
Installation, nitrogen pressure test, vacuum and F-Gas commissioning
Building Regulations Part P and Part L notification
BSRIA BG 49 commissioning pack and warranty registration

Who this air conditioning installation service is for

We deliver air conditioning installation for homeowners, landlords, offices, retail units, hospitality, industrial sites and public-sector estates across England, Scotland and Wales. Typical projects sit in the 2.0 kW single-room splits through to 500 kW+ commercial VRF band, and every scheme is designed by an F-Gas certified engineer against a full CIBSE Guide A heat-load calculation — never a rule-of-thumb watts-per-square-metre guess.

We cover the whole UK from London-based engineering hubs, with same-week surveys inside the M25 and 7–14 day lead times nationally. All work is delivered by directly-employed engineers rather than subcontractors, so the person who quotes your job is accountable for how it is installed and commissioned.

System types we recommend

The right air conditioning installation depends on building fabric, occupancy pattern and how much of the equipment can be seen. For single rooms we specify wall-mounted inverter splits (Mitsubishi MSZ-AP, Daikin Perfera, Panasonic Etherea). For whole-house or multi-tenant coverage we design multi-split or ducted systems that share one condenser. For offices, retail and hospitality we default to 4-way ceiling cassettes on standard 600×600 grid; for larger buildings VRF and Hybrid VRF share heating and cooling loads between zones for 20–30% seasonal efficiency gains.

Every specification is written against your actual building fabric, occupancy pattern and electrical capacity. We do not resell a single manufacturer — the design drives the equipment choice, not the other way around. If your incoming supply is constrained, we flag it at survey and offer a phased approach or a load-shedding controller rather than pretending the problem does not exist.

The survey, design and installation programme

A senior engineer attends site within 3–5 working days of enquiry. The survey covers heat gains (fabric, solar, occupancy, equipment), electrical capacity, condenser positioning, structural loading, acoustic constraints to neighbours, drainage routes and any planning/landlord constraints. Photos, measurements and load calculations feed into a written fixed-price proposal within 48 hours.

Once awarded, we produce a full drawing pack — pipe routes, electrical schedule, condenser structural loading, refrigerant volume and BS EN 378 risk assessment. Installation runs to a published programme with daily photo updates. Commissioning follows BSRIA BG 49 with a full test-and-balance report, an F-Gas record and manufacturer warranty registration on the day of handover.

Costs, timeline and running expenses

Air Conditioning Installation typically starts at £1,500 per indoor unit for a compact single-zone scheme. Multi-zone and specialist projects scale with equipment tonnage, condenser positioning complexity and any out-of-hours working requirement. Programme duration is 1 day single split — 2–6 weeks multi-storey commercial. We quote fixed prices — nothing is added on site without written change control.

A modern R-32 inverter split with SEER 8.0 running 8 hours a day at 2.5 kW cooling load uses roughly 2.5 kWh — around 75p at 30 p/kWh. On heat-pump duty the same unit typically delivers 3.5–4.5 kW of heat per 1 kW of electricity, undercutting gas heating in mild weather and beating direct electric outright. Modern R-32 inverter equipment routinely delivers seasonal efficiency ratings (SEER) between 6.5 and 8.5, which is 30–50% better than the R-410A systems installed a decade ago. On heat-pump duty, coefficients of performance (COP) sit between 3.5 and 4.5 in UK conditions — comfortably ahead of gas heating on marginal-cost pence-per-kWh once carbon pricing is factored in.

Compliance, warranties and aftercare

Every installation is notified under Building Regulations Part P (electrical) and Part L (energy) where applicable, and lodged with the appropriate competent-person scheme. Systems containing 5 tCO₂e or more of F-Gas refrigerant require statutory annual leak checks under Regulation EC 517/2014 — we hold the F-Gas company certificate and can act as your Responsible Person, keeping records for HMRC and Environment Agency inspection.

Equipment carries a 5-year manufacturer parts warranty (compressor included) when installed by an accredited engineer. We register the warranty on the commissioning day so there is nothing for you to file. Our installation workmanship carries a 12-month cover-all warranty, and PPM service plans start at £110 per outdoor unit per year — sufficient to preserve manufacturer cover and catch drift before it becomes downtime.

Brands we install and why

We install the full Daikin, Mitsubishi Electric, Mitsubishi Heavy Industries, Panasonic, Toshiba, Fujitsu, LG, Samsung, Midea and Gree ranges. Brand choice is driven by the design — quietest unit for a bedroom (Mitsubishi Electric MSZ-LN at 19 dB), best cold-climate heat-pump (Fujitsu Nocria X or Mitsubishi Zubadan), lowest lifetime cost on a large VRF footprint (Daikin VRV 5 or Mitsubishi Hybrid VRF).

All refrigerant work uses R-32 (GWP 675) as standard, with R-454B (GWP 466) available on request for future-proofing against the F-Gas phase-down schedule. We steer clients away from R-410A (GWP 2088) for any new install — the refrigerant is being progressively withdrawn from supply and top-up costs will rise sharply between 2026 and 2030.

Working around your operation

Downtime is the hidden cost of any air conditioning project. We routinely deliver work in evening slots (18:00–02:00), Sunday shutdowns and staged week-by-week phasing so your day-to-day operation continues unaffected. Overnight and weekend working commands a modest 10–20% uplift which we itemise transparently at quotation.

Dust management, negative-pressure containment and daily photo close-out reports are standard for any works in occupied premises. Where a phased approach is chosen, we deliver temporary cooling (portable spot coolers or hire chillers) to bridge critical zones during the transition — priced separately so you can choose whether the resilience is worth the line item.

How much does air conditioning installation cost in the UK?

A single-room wall-mounted split fully fitted starts at £1,500–£2,200 including all pipework, an outdoor condenser, a dedicated electrical spur from the consumer unit and F-Gas commissioning. Multi-split systems covering two to five rooms from one condenser typically land at £4,500–£9,500 depending on pipe runs and indoor unit selection. Ducted whole-house systems that hide the equipment in loft or ceiling voids run £8,000–£18,000 for a typical four-bedroom home.

Commercial installations scale with tonnage and complexity. A four-cassette office fit-out (roughly 25 kW total) sits at £14,000–£22,000. A 20-storey office refurbishment on VRF is more usefully quoted per m² of net internal area — typical London figures land between £180 and £240 per m² for a Cat A specification, including builders' work in connection but excluding the electrical distribution board upgrade if one is needed.

Timelines, phasing and working around occupied buildings

A single-room domestic split is a one-day job for two engineers — arrive at 08:30, condenser on brackets by 10:00, pipework and electrics through by 15:00, vacuum and commissioning by 17:00. Multi-split systems run to 2–4 days. Ducted whole-house installs typically need 5–8 working days plus first-fix during any parallel building works.

Occupied commercial buildings almost always need out-of-hours access to core areas — trading floors, dealing rooms, hospital wards, hotel rooms. We routinely deliver evening slots (18:00–02:00), Sunday shutdowns and full week-by-week phasing so day-to-day operation continues unaffected. Out-of-hours working carries a transparent 10–20% uplift itemised at quotation, and where a phased approach is chosen we can bridge critical zones with hire chillers or portable spot coolers priced as a separate line so you decide whether the resilience is worth the cost.

Why choose us for this work

We are F-Gas certified installers with directly-employed engineers, fully insured to £10m public liability and £5m professional indemnity. Every project comes with a fixed price, a written programme, a photo record and a 5-year warranty on equipment plus 12 months on workmanship. We publish real client references on request — not gated behind a form.

Request a quote online and we will book a site survey. Same-week surveys inside the M25, 7–14 day lead times nationally, and a qualified engineer attending the survey rather than a scripted call-centre operator.

Frequently asked questions

How much does air conditioning installation cost?＋

Fully-fitted prices start at £1,500 per indoor unit. Multi-zone and specialist projects scale with equipment tonnage and installation complexity. All quotes are fixed price — no on-site supplements.

How long does the installation take?＋

1 day single split — 2–6 weeks multi-storey commercial

Do you handle Building Regulations sign-off?＋

Yes. Part P electrical work is notified via our NAPIT/NICEIC scheme and Part L energy compliance is documented in the commissioning pack. You receive certificates on the day of handover.

What refrigerant do you use?＋

R-32 as standard (GWP 675). R-454B (GWP 466) is available on request for maximum future-proofing against F-Gas phase-down. We do not install R-410A for new schemes.

Do you offer service and maintenance plans?＋

Yes — PPM plans start at £110 per outdoor unit per year and include filter cleans, coil disinfection, drain-line flush, refrigerant pressure check and electrical inspection. Statutory F-Gas leak checks are included on qualifying systems.

What warranty applies?＋

5-year manufacturer parts warranty on equipment (compressor included) plus 12 months workmanship warranty on our installation. Annual servicing preserves manufacturer cover.

Is planning permission needed for air conditioning installation?＋

Most domestic installs are permitted development if the outdoor condenser is under 0.6 m³, more than 1 m from the boundary and not on a principal elevation to a highway. Flats, listed buildings and conservation areas always need consent — we handle the drawings and submission.

Do you cover the whole of the UK?＋

Yes — nationwide coverage from London engineering hubs. Same-week surveys inside the M25 and 7–14 day lead times across the rest of England, Scotland and Wales.