F-Gas certifiedFujitsu Air Conditioning Installers
Fujitsu General builds robust, straightforward systems with excellent heating output. The KM and KE wall ranges are common on UK domestic retrofits, with Waterstage covering heat-pump heating.
From £1,750
Fully installed, fixed price
3-year warranty
3-year standard product warranty, extendable on registration
F-Gas certified
REFCOM registered engineers
- KM Series
- KE Series
- Eco Series
- VRF / Waterstage
Fujitsu air conditioning installation, explained
Fujitsu air conditioning installation costs from £1,750 fitted for a single-room wall-split, typically completed in one day by F-Gas certified, Fujitsu-registered engineers. Registering the system on the manufacturer scheme unlocks a warranty of up to 3 years.
Fujitsu General builds robust, straightforward systems with excellent heating output. The KM and KE wall ranges are common on UK domestic retrofits, with Waterstage covering heat-pump heating.
Fujitsu air conditioning ranges we install
KM Series
Everyday domestic wall-split with high seasonal efficiency
KE Series
Design wall unit in white, silver and black finishes
Eco Series
Cost-effective units for secondary rooms
VRF / Waterstage
Commercial multi-zone and air-to-water heat-pump systems
Why choose Fujitsu?
- Strong low-ambient heating output for winter use
- Simple, serviceable design with widely stocked parts
- Good value across the domestic range
Best suited to
- Heating-focused installs
- Conservatories and loft rooms
- Light commercial units
Fujitsu installation cost and what's included
Every Fujitsu installation is quoted as a single fixed price after a free survey — no on-site supplements once work starts.
- Heat-load survey and Fujitsu unit sizing to CIBSE Guide A
- Supply of the Fujitsu indoor and outdoor units
- Refrigerant pipework, trunking or chased runs and making good
- Condensate drainage and pump where required
- Fused spur, isolator and Part P electrical certification
- F-Gas commissioning, Fujitsu warranty registration and handover training
Fujitsu air conditioning specifications and typical sizing
Indicative sizing for Fujitsu domestic wall-split systems. Final capacity is confirmed by a heat-load calculation at survey.
| Capacity | Typical room | Room size | Installed from |
|---|---|---|---|
| 2.0–2.5 kW | Bedroom / home office | up to 20 m² | £1,750 |
| 3.5 kW | Living room / large bedroom | 20–30 m² | £2,149 |
| 5.0 kW | Open-plan kitchen-diner | 30–45 m² | £2,595 |
| Multi-split 2–3 rooms | Whole upstairs / flat | 2–3 zones | £3,490 |
How Fujitsu compares with the other brands we install
| Manufacturer | Origin | Warranty | Installed from |
|---|---|---|---|
| Fujitsu | Japan | 3 years | £1,750 |
| Daikin | Japan | 7 years | £1,850 |
| Mitsubishi Electric | Japan | 7 years | £1,950 |
| Mitsubishi Heavy Industries | Japan | 5 years | £1,750 |
| Toshiba | Japan | 7 years | £1,895 |
Our Fujitsu installation process, step by step
1. Free Fujitsu survey and heat-load calculation
We measure glazing, orientation and room volume to size the Fujitsu unit correctly — oversizing causes short-cycling and poor dehumidification.
2. Fixed-price design and quote
You get unit models, pipe routes, condensate route and outdoor unit position in writing, with VAT included and no hidden extras.
3. First-fix installation
Brackets, refrigerant pipework, drainage and the electrical supply go in with dust sheets down and floor protection throughout.
4. Pressure test, vacuum and charge
Nitrogen strength test, evacuation to below 500 microns and weighed-in R-32 charge — the step most warranty claims hinge on.
5. Commissioning and F-Gas certification
Performance readings, F-Gas record, Part P electrical certificate and Fujitsu warranty registration completed the same day.
6. Handover and aftercare
We show you the controls and app, then set an annual service to keep the 3-year Fujitsu warranty valid.
Reviewed by our F-Gas team
Written and checked by Air Conditioning Installation's REFCOM-registered installation team, who commission Fujitsu equipment week in, week out across London and the South East. Last updated September 2026.
Fujitsu air conditioning installation — FAQs
How much does Fujitsu air conditioning installation cost?
A single-room Fujitsu wall-split system starts at £1,750 fully installed, including the unit, pipework, electrical connection, commissioning and certification. Multi-split systems serving 2–4 rooms typically run £4,500–£8,500, and commercial cassette or ducted systems are priced per zone after a site survey.
Are you Fujitsu approved installers?
We are F-Gas certified and REFCOM registered, and we install and register Fujitsu equipment as part of the manufacturer's installer scheme. That registration is what unlocks the extended 3-year equipment warranty on your system.
What warranty comes with a Fujitsu system?
3-year standard product warranty, extendable on registration. On top of that, our own installation carries a 5-year parts and labour warranty. Warranty cover requires correct commissioning and an annual service, both of which we can handle.
Can I get Fujitsu air conditioning installed in my home?
Yes. Fujitsu domestic wall-split and multi-split systems are suitable for bedrooms, living rooms, home offices and loft conversions. Every installation is quoted fixed, in writing, before work begins.
How long does a Fujitsu installation take?
A single Fujitsu wall-split is normally completed in one day. Multi-split systems serving several rooms take two to three days, and commercial installations are programmed after the survey — often out of hours to protect trading.
Do you service and repair Fujitsu air conditioning?
Yes — we service, regas and repair Fujitsu equipment whether or not we installed it, and annual servicing keeps the manufacturer warranty valid.
Compare other brands
Fujitsu installation areas we cover
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Supply & installation for homes, offices, shops, restaurants, HMOs and commercial premises across London. An F-Gas engineer replies within one working day.
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