Greater London · Heat pump installation
Harlesden air source heat pumps
F-Gas certified and NICEIC approved, we cover Harlesden for MCS certified installation of air source heat pumps for heating and hot water, with the Boiler Upgrade Scheme grant applied for. A fixed price before work begins, and a 24/7 emergency line.
- Checking eligibility for a heat pump grant
- Moving away from fossil-fuel heating
- Planning and permitted development questions
Air source heat pumps in Harlesden
A £2,500 grant is available for some air-to-air heat pumps, with conditions. The system must replace the existing fossil-fuel heating and meet the home’s full heating demand, it must be installed by an MCS certified installer, and it must be in a home; adding it alongside a boiler does not qualify. We’re often asked to deal with checking eligibility for a heat pump grant and checking emitters for a heat pump, on air-to-air heat pumps, underfloor heating and hot water cylinders.
Homes in Harlesden are often flats and terraces, where outside space is limited, which affects which heat pump suits. An air-to-water system needs space outside and usually a hot water cylinder inside, while an air-to-air system needs less space.
Warranty periods vary by brand and by product. Daikin, for instance, gives a standard 2 years on split air conditioning, with longer extensions only on its air-to-water heat pumps. For any other brand, we explain the manufacturer’s terms on your quote.
- Where
- Harlesden (NW10, W3, NW26)
- Wider area
- Greater London
- Pricing
- Fixed, in writing
- Price guide
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Certified
- NICEIC and F-Gas, MCS
- Telephone
- 07833 053749
- Checked
- 30 October 2026
Looking after it afterwards
Aftercare is straightforward, and it helps at the next service:
- Check eligibility for the Boiler Upgrade Scheme early
- Do not block radiators or indoor units with furniture
- Read the manufacturer’s warranty terms for your brand
If you were eligible for a grant, we handle the application and keep you updated, as the installer applies for it.
Book a service every year. Your manufacturer’s warranty terms may say something about servicing.
How it works
Wherever the system can be run before we leave, we run it and check it in operation. Then we show you what we’ve done and answer any questions, and anything that needs attention later is pointed out. All told, the work takes a few days for most air-to-water installations, with air-to-air systems often quicker. Parking bays, permits and roof or balcony access are the first things we ask about in Harlesden.
- Step one is understanding the house, how it’s heated today and what you’d like to change.
- On the visit we calculate what every room loses on a cold day, then check the radiators, room for a cylinder and outdoor unit options.
- A fixed-price quote follows, setting out the system, any grant that applies and the VAT.
- The outdoor unit, the indoor equipment and the controls are installed and connected.
- The system is commissioned and registered under MCS, and we show you how to use it.
Preparing for the visit
- Give us access to the outside wall, roof or yard where the outdoor unit sits
- Plan for pets to be kept clear during the visit
- Arrange for someone to be there to let us in
Getting a quote
To help us quote: the address and the type of property, a few pictures, the make and model of any existing system and anything you’ve noticed, such as an error code or a noise. Once you have those, give us a ring on 07833 053749 or drop us a line.
Advice
Air source heat pumps in Harlesden: the local picture
About 52% of homes across Harlesden and its surrounding area were built before 1919, according to VOA council tax data, and the last census (2021) found about 74% of households live in flats. Period properties can still suit a heat pump, but the design has to start from accurate heat loss figures. In flats, space for an outdoor unit and a cylinder can be limited, and the lease and freeholder come into it, so air-to-air is sometimes the better fit. For a London home, the outdoor unit position and the MCS noise check need careful planning.
If you live near Willesden Junction station, the survey compares air-to-water and air-to-air for your home before anything is quoted. If your home is listed, like Pitzhanger Manor about 3.1 miles south-west, listed building consent comes before any heat pump work.
Harlesden is about 4 miles west of City of Westminster, in Greater London. Properties in Harlesden get the same service as everywhere we cover: diagnosis first, a fixed price and proper paperwork when we’ve finished. Count every place we list in Greater London and you reach 764, with Harlesden on the list. We also work in London, around 7 miles away.
Not far from Harlesden, a recent job of ours was on Richmond Hill, Richmond (TW10), about 6 miles south: installing a Mitsubishi Electric Zubadan multi-split system serving four bedrooms, the study and the living room: six indoor units in total.
Jobs in NW10, W3 and NW26 are looked at, quoted and booked the same way as anywhere else. If you need air source heat pumps at a property on Fry Road, Wood Road and Park Road or a nearby road, our engineers can take on the work. Close to Harlesden, our area also takes in College Park (1 mile south-east), Old Oak Common (1 mile south), Church End (1 mile north), Stonebridge (1 mile north-west) and Willesden Green (1 mile north-east). Larger places within reach include London (7 miles east), City of Westminster (4 miles east), Marylebone (5 miles east) and Kensington (3 miles south-east).
Around Harlesden
In Harlesden, that means homes and buildings near St Claudine's Catholic School for Girls, Royal Oak Inn and Roundwood Park. There’s a railway station in Harlesden itself: Willesden Junction station. Other landmarks nearby include Central Middlesex Hospital (1 mile west) and Brent Museum and Archives (1.1 miles north-east). The countryside around Harlesden includes Castlebar Hill and The Long Water.
Why deal with it now?
Permitted development rules can change, and conditions vary between properties. Checking the position for your home at the survey stage avoids surprises later, including conservation areas, listed buildings and Article 4 directions. Getting the work done in Harlesden before summer avoids the busiest weeks.
Our prices page shows typical ranges, but each job is priced on what it involves. Call for a fixed-price quote, and we’ll talk you through it.
Why us?
- Every job looked at before it’s priced
- Covering London and the South East
- Leading brands including Daikin, Mitsubishi Electric and Fujitsu
- Manufacturer’s warranty terms explained on your quote
Read what air conditioning costs or our accreditations and certificates.
Common questions in Harlesden
Is the heat pump grant available in Harlesden?
Yes, if the home and the heat pump meet the scheme’s rules: Harlesden is in England, where it applies. For an air-to-water heat pump the amount is £7,500; an air-to-air system can get £2,500 if it replaces the fossil-fuel heating outright, meets the home’s full heating demand and is not an add-on to a boiler. As an MCS certified installer, we apply for it on your behalf.
Will a heat pump in Harlesden need planning permission?
There’s no single answer: the building and the outdoor unit position decide it. The centre of Harlesden is in a conservation area. On a house, an air source heat pump can often go ahead under permitted development, with an outdoor unit of no more than 1.5 cubic metres and an installation that meets MCS 020(a), which includes a noise check. Those rights don’t reach the grounds of a listed building, and conservation areas rule out walls or roofs facing a road. If that might affect you, we ask the local planning authority (for Harlesden, usually Brent council).
Can I fit air conditioning or a heat pump myself?
Anything that involves the refrigerant needs an F-Gas qualified engineer from a certified company. That is a legal requirement, and it also matters for the manufacturer’s warranty. We can quote for the whole job, from supply to commissioning.
Will skipping a service affect the warranty?
It can, for some brands. Read the manufacturer’s terms, or send us the make and model and we’ll explain them, and book the service at the interval they recommend.
How much does an air source heat pump cost?
Air-to-water systems are £8,000–£16,000 (0% VAT on homes), before any grant. Your price depends on the survey, the emitters and the hot water and the quote is fixed.
Which brands do you work with?
We work with the leading brands, from Mitsubishi Electric, Daikin and Fujitsu to Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. Send us the make and model if you have it.
How does the warranty work?
Warranty comes from the manufacturer and depends on the brand and product. For example, Daikin’s standard warranty on split air conditioning is 2 years and we explain the terms for your brand on the quote.
Managing agents and facilities teams in Harlesden
Larger air conditioning systems in buildings need more than servicing: a TM44 inspection by an accredited energy assessor is required at least every 5 years for systems over 12 kW. We can arrange it, prepare the system for it and fix what it finds.
Records are where property maintenance often slips. Each visit is written up, plus the F-Gas records where refrigerant is involved, so you can show what was done and when.
Places near Harlesden
More services for Harlesden
A customer’s words
“Very professional from the initial survey through to installation. The engineer explained everything clearly and the quote was exactly what we paid. Would not hesitate to recommend AirCon Doctor.”
David W., Haywards Heath