Heat Pump Installers
London Done Right
F-Gas registered engineers designing, supplying and installing air conditioning and heat pump systems for homes, offices and commercial properties across London and the Home Counties.
From single-room splits to VRF office systems and air source heat pumps — designed, installed and commissioned by F-Gas registered engineers.
F-Gas Registered
Every engineer holds Category 1 F-Gas certification
7-Year Warranty
Long parts & labour cover on every installation
London-Wide Coverage
All boroughs plus the Home Counties
Open 7 Days a Week
Early mornings, evenings, weekends & emergencies
Heat Pump Installers & Air Source Heat Pump Specialists in London
We design, supply, install and maintain air conditioning and heat pump systems for residential and commercial customers across London and the Home Counties. Every engineer is F-Gas certified and every installation is fully commissioned, documented and warranty-registered on the day.
Whether you need a single bedroom split system, a cassette-based office fit, or a full VRF hotel installation, we handle it end-to-end — from heat-load survey to commissioning and ongoing maintenance.
Who We Work With
- Homeowners and landlords fitting AC or heat pumps
- Offices and co-working spaces needing zoned comfort cooling
- Restaurants, cafés and hotels with kitchen-aware AC design
- Retail, showrooms and reception areas
- Server rooms, comms cabinets and data centres
- Property managers with multi-site PPM requirements
Our Services
Air conditioning, heat pumps and full lifecycle service by F-Gas registered engineers.
Air Source Heat Pump Installation
MCS-standard air source heat pump installation across London — room-by-room heat loss survey, radiator and cylinder sizing, full commissioning and warranty registration.
View details →Ground Source Heat Pumps
Ground source heat pump design and installation for larger London properties — borehole and ground-loop collectors, buffer tanks and low-temperature emitters.
View details →Heat Pump Servicing & Maintenance
Annual heat pump servicing, breakdown repairs, refrigerant work and F-Gas / TM44 compliance for every major heat pump and air conditioning brand.
View details →Commercial Heat Pumps
Commercial heat pump and VRF heating systems for offices, schools, hotels and retail — installed out of hours to protect trading, fully documented.
View details →Air Conditioning Installation
Wall, cassette, ducted and multi-split heat pump air conditioning — heating in winter and cooling in summer from a single system.
View details →Customer Reviews
What our clients say about our AC and heat pump work
547 reviews on Google
Booked a Daikin multi-split installation for our two-bed flat. The engineers arrived on time, ran neat pipework and had the system commissioned by mid-afternoon. Incredibly quiet and cools the whole flat.
Our server room AC failed on a Sunday. They had a portable unit on site in under two hours and a permanent replacement fitted the following day. Absolute lifesavers.
We manage a portfolio of London offices and use them for all our air conditioning servicing and TM44 inspections. Reliable, fairly priced, and their reports are always properly documented.
Had an air source heat pump installed to replace our old oil boiler. Warmer house, lower bills, clean install and honest pricing throughout.
Heat Pump & Air Conditioning Installation Prices
Fully-installed fixed-price examples. All prices exclusive of VAT — no call-out fees, no hidden extras.
Single Room
£1,795
One high-wall split for a bedroom or home office.
Two Rooms
£2,995
Multi-split serving lounge and bedroom.
Whole Flat
£4,495
Three-port multi-split covering an entire two-bed flat.
Small Office
£5,495
Two ceiling cassettes zoned for open plan + meeting room.
Heat Pump & Air Conditioning Systems We Install
Pick the system that suits your property — we'll size, supply and install it end-to-end.
Split Systems
Single-room wall, floor or cassette units — the most efficient way to cool one space.
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MULTIMulti-Split Systems
One outdoor unit serving 2–5 rooms, each with independent temperature control.
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DUCTEDDucted Air Conditioning
Fully concealed ceiling-void systems with slim architectural grilles.
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VRFVRF / VRV Systems
Commercial-grade variable refrigerant flow for offices, hotels and mixed-use buildings.
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ASHPAir Source Heat Pumps
Low-carbon home heating designed, installed and commissioned by qualified engineers.
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F-GASF-Gas & TM44 Compliance
Mandatory refrigerant leak checks and TM44 energy inspections for AC over 12kW.
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How Our Heat Pump Installation Works
1. Free Site Survey
Room-by-room heat-load calc, unit sizing and install route mapped out.
2. Fixed-Price Quote
Detailed written quote in 24 hours — brand, kW, warranty and price locked in.
3. Clean Install
F-Gas engineers, tidy pipework, dust sheets down, single-day fit for most homes.
4. Commission & Warranty
Pressure test, vacuum, gas charge, commissioning certificate and warranty registered.
Heat Pump Installers London — Air Source Heat Pump Installation
We are heat pump installers covering London and the M25, designing and fitting air source heat pumps for period homes, new builds, flats and commercial premises. Every project starts with a room-by-room heat-loss survey and ends with full commissioning, controls setup and warranty registration.
Heat Pump Installation Cost in London
Most domestic air source heat pump installations in London land between £7,500 and £13,000 depending on heat demand, cylinder size and emitter upgrades. See our air conditioning and heat pump price list for indicative figures, or book a free heat-loss survey.
Replacing a Boiler With a Heat Pump
Swapping a boiler for a heat pump means lower flow temperatures, so we check radiator sizing and hot water storage before quoting. Homes that also want summer cooling often pair a heat pump with multi-split air conditioning, while commercial sites usually move to VRF heat recovery systems.
Heat Pump Servicing & Aftercare
Keep efficiency and warranty cover intact with annual heat pump and air conditioning servicing, plus F-Gas leak testing for larger systems.
Heat Pump Installation FAQs
How much does heat pump installation cost in London?
A typical air source heat pump installation in London costs between £7,500 and £13,000 depending on the heat loss of the property, the size of the unit and whether radiators or cylinders need upgrading. As heat pump installers London homeowners use for both retrofits and new builds, we confirm the exact figure in a fixed written quote within 24 hours of the survey. Call 07427 826446.
Read moreWhat is the heat pump installation process from survey to commissioning?
Step one is a free heat-loss survey of the property. Step two is a fixed written quote within 24 hours covering the unit, cylinder, pipework, controls and commissioning. Step three is installation, usually two to three days for a domestic air source heat pump. Step four is commissioning, handover, warranty registration and an optional annual service plan.
Read moreHow much does air conditioning installation cost in London?
A single high-wall split system for one room typically starts at £1,795 + VAT fully installed. Multi-split systems for 2–5 rooms range from £2,995 to £5,995. Commercial ducted and VRF installations are quoted after a free site survey. View our full price list for details.
Read moreCan you install an air source heat pump to replace my boiler?
Yes. We design and install air source heat pumps to replace gas and oil boilers, including full heat-loss surveys, radiator sizing checks and commissioning. Our engineers handle everything from initial survey through to commissioning and warranty registration.
Read moreDo I need new radiators for a heat pump?
Not always. Heat pumps run at lower flow temperatures than boilers, so some radiators may need upsizing to deliver the same output. Our heat-loss survey checks every room and tells you exactly which emitters, if any, need changing before we quote.
Read moreHow often does an air conditioning system need servicing?
Manufacturer warranties usually require an annual service to remain valid. Commercial systems in constant use (server rooms, restaurants, retail) benefit from twice-yearly servicing. Systems containing 5 tonnes CO₂e or more of refrigerant also require legally-mandated F-Gas leak checks.
Read moreWhat areas do you cover?
We cover all London boroughs plus the Home Counties including Essex, Kent, Surrey, Hertfordshire and Berkshire. Contact us to check availability in your area.
Read moreHeat Pump Installers Across London & the M25
We install and service air conditioning and heat pumps across London and the surrounding Home Counties — Surrey, Kent, Essex, Hertfordshire, Buckinghamshire, Berkshire, Sussex, Hampshire, Bedfordshire, Cambridgeshire and Oxfordshire.
Popular Heat Pump & HVAC Services in London
Ready to Book Your Air Source Heat Pump Installation?
Get a fixed-price quote today. Our F-Gas registered air conditioning and heat pump engineers cover London and the Home Counties seven days a week, with rapid response for breakdowns.
Installations from £1,795 + VAT • Free survey • F-Gas registered engineers