Greater London · Heat pump installation
Heat pump installation in Walthamstow, Greater London
Air source heat pumps for Walthamstow, from F-Gas certified engineers, with warranty terms explained brand by brand. Enquiries answered the same working day.
- Wanting to stop using oil, LPG or gas for heating
- Finding a place for the outdoor unit
- An oil, LPG or gas boiler near the end of its life
About our air source heat pumps in Walthamstow
Hot water from an air-to-water system is stored in a cylinder. If you have a combi boiler and no cylinder, the survey looks at where one could go. With air-to-air, hot water has to come from something else. Typical jobs include questions about listed buildings or conservation areas and deciding which kind of heat pump suits the home, across homes heated by oil, LPG or gas, radiator systems and underfloor heating.
In a London area like Walthamstow, many homes are flats or terraces with little outside space, which affects which heat pump suits. An air-to-water system needs space outside and typically a hot water cylinder inside, while air-to-air units take less room.
We are an F-Gas certified company, NICEIC approved for electrical work, with MCS certification for heat pumps and Checkatrade membership. Refrigerant work is done by engineers who hold the F-gas qualifications the law requires.
- Where
- Walthamstow (E17, E4, IG8, E10)
- Region
- Greater London
- Replies
- We reply the same working day
- Credentials
- F-Gas certified company, NICEIC approved, MCS
- Prices
- £8,000–£16,000 before the grant, 0% VAT on homes
- Pricing
- Fixed, in writing
- Phone
- 07833 053749
- Updated
- 30 October 2026
Common questions in Walthamstow
Can I get the Boiler Upgrade Scheme grant in Walthamstow?
Yes, the scheme covers homes in England, including Walthamstow, if they qualify. Whether your home qualifies, and for how much, depends on the type of heat pump and the heating it replaces. We hold MCS certification, so the application is ours to make for you.
Can you fit air conditioning in a London flat in Walthamstow?
In many cases, yes, once the lease and the building’s rules are checked. We look at where the outdoor unit could go, such as a balcony, flat roof or rear wall, and write it up for the freeholder or agent.
Will skipping a service affect the warranty?
For some brands, yes. Read the manufacturer’s terms, or send us the make and model and we’ll explain them and stick to the interval they set.
How much does an air source heat pump cost?
An air-to-water heat pump costs £8,000–£16,000 (0% VAT on homes) before the grant. The Boiler Upgrade Scheme offers £7,500 to eligible homes in England and Wales though not every home qualifies.
What’s the difference between air-to-water and air-to-air heat pumps?
Air-to-water replaces the boiler for heating and hot water, while air-to-air heats and cools rooms. The survey helps decide. Both are part of what we install.
Do you protect the property while you work?
Floors and furniture near the work are covered with dust sheets before work begins, and we tidy up as we go. Before we leave, we clear up and run through the work with you.
Will you work on another installer’s system?
Yes. We start with a proper look and tell you honestly what we find, including anything about the original installation that needs putting right. You get a fixed price before any work goes ahead.
Owner checks or an engineer?
Good habits make our visits easier, not unnecessary. Clean filters and a clear outdoor unit help the system run as it should, but the refrigerant circuit, the electrics and the parts you cannot see still need an engineer at the interval the manufacturer recommends.
Don’t move, re-route or disconnect units or pipework yourself. Moving a unit involves the refrigerant circuit, so it needs an F-Gas qualified engineer, and the electrics need care too. Ask us to quote for a move instead.
Looking after it afterwards
Systems last better with the right care. We suggest:
- Avoid switching the heat pump on and off often
- Find out the grant position at the survey
- Check what your manufacturer’s warranty asks of you
Now and then in cold weather, the outdoor unit defrosts itself. You might see steam or hear the unit change note, and that’s normal.
Heat pumps prefer steady, low-temperature running as explained at handover.
The process
The first job on site is protection: sheets over the floor and any furniture nearby, and we ask before moving anything. Then the electrics are made safe and the work begins. It takes a few days on site, depending on the cylinder, the radiators and the pipework involved, and we clear up before we go. In a London area like Walthamstow, parking and access are worth sorting out before the day.
- We find out about your home and the heating you have now.
- Every room’s heat loss is worked out on site.
- From those figures we size the heat pump and decide on radiators, cylinder and outdoor position.
- A fixed-price quote explains the cost, the grant position and the VAT.
- Installation, commissioning and MCS registration complete the job.
Getting ready for the visit
- Dig out any previous service or F-Gas records
- Let us know if the building has a permit or sign-in process
- Keep pets out of the rooms we are working in
How to get a quote
VAT is set out clearly on every quote, with the rate that applies to your job. VAT can differ between homes and businesses and between kinds of work, so we confirm it in writing rather than guess. To get one, phone us on 07833 053749, or email if that’s easier.
Related advice
Places near Walthamstow
What else we do in Walthamstow
Heat pumps in Walthamstow: local notes
About 56% of homes across Walthamstow and its surrounding area were built before 1919, according to the Valuation Office Agency’s council tax figures, and about 55% of households live in flats, according to the 2021 Census. Older homes can lose heat faster, so a room-by-room heat loss calculation, and sometimes insulation or larger radiators, comes before sizing a heat pump. 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. In London, outside space and the rules for flats often decide which kind of heat pump suits.
Homeowners near Walthamstow Central station often ask whether a heat pump can take over from the boiler, and the heat loss survey answers that. If your home is one of the older properties near Church of St Michael and All Angels, the survey checks whether it’s listed or in a conservation area before the outdoor unit position is chosen.
Walthamstow is about 7 miles north-east of London, in Greater London. Our engineers cover Walthamstow for air source heat pumps and across the rest of Greater London. Our area takes in 764 places across Greater London, from busy centres to quieter spots. There’s also a page for London, roughly 7 miles from Walthamstow.
Not far from Walthamstow, a recent job of ours was on Greenwich High Road, Greenwich (SE10), about 7 miles south: installing a Mitsubishi Electric wall-mounted unit in the retail area and a second unit in the stockroom and office.
The A104 and A112 serve Walthamstow, which keeps journeys to surveys and visits simple. Here we cover the E17, E4, IG8 and E10 postcode area. Close to Walthamstow, our area also takes in Walthamstow Village (1 mile south-east), Warner Estate (1 mile north), Bakers Arms (1 mile south-east), Higham Hill (1 mile north-west) and Upper Walthamstow (1 mile east). Further out, we also cover London (7 miles south-west), City of Westminster (7 miles south-west), Marylebone (7 miles south-west) and Kensington (10 miles south-west).
Local landmarks in Walthamstow
In Walthamstow, that means homes and buildings near Aveling Park School, Walthamstow School for Girls and Lloyd Park and the streets around them. Walthamstow has its own railway station: Walthamstow Central station. A little further out are 17 & Central (under half a mile south) and Walthamstow Pump House Museum (0.8 miles south-west). Green spaces nearby include Hollow Pond and Ainslie Wood.
What air source heat pumps can’t fix
Air source heat pumps cannot fix everything, and we’d rather say so up front. It will not put right:
- Planning approval where permitted development doesn’t apply
- Formal advice on VAT for your situation
- Grants for hybrid systems or replacements of low-carbon systems
If you’re not sure, just call us on 07833 053749 or send an email and we will give you a straight answer before booking.
What the work covers
- Homes heated by oil, LPG or gas
- Air-to-air heat pumps
- Radiator systems
- Air-to-water heat pumps
- Underfloor heating
- Hot water cylinders
A customer’s words
“Office air con broke down in the July heatwave. Called at 8am, engineer was here by noon and fixed within 2 hours. Brilliant emergency response. They now hold the service contract for the whole building.”
James T., Crawley, office manager