Greater London · Heat pump installation
Heat pump installers in Rayners Lane
For MCS certified installation of air source heat pumps for heating and hot water, with the Boiler Upgrade Scheme grant applied for in Rayners Lane, one call is all it takes, from the first look to sign-off. F-Gas certified, NICEIC approved and Checkatrade members.
- Radiators that may be too small for a heat pump
- Moving away from fossil-fuel heating
- Checking whether planning permission is needed
Air source heat pumps for homes and businesses in Rayners Lane
As an MCS certified installer, we fit air source heat pumps for homes in Rayners Lane and the rest of Greater London. Air-to-water systems feed your radiators or underfloor heating and hot water cylinder, while air-to-air systems heat rooms directly through indoor units and can cool them too. We will explain which type fits your home and why. Typical jobs include planning and permitted development questions and replacing a combi boiler with a heat pump, on air-to-air heat pumps, underfloor heating and hot water cylinders.
A terrace in Rayners Lane shares walls with its neighbours, which helps keep heat in, provided the outdoor unit can sit somewhere that passes the MCS noise check.
We’re an F-Gas certified company, NICEIC approved for electrical work, MCS certified for heat pumps and a Checkatrade member. Refrigerant work is done by engineers who hold the F-gas qualifications the law requires.
- Place
- Rayners Lane (HA2, HA5, HA4)
- Wider area
- Greater London
- Quotes
- A fixed price before we start
- Response
- Answered the same working day
- Costs
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Certified
- F-Gas certified company, NICEIC approved, MCS
- Telephone
- 07833 053749
- Page updated
- 30 October 2026
When it’s something else
Some problems need a different service or another trade:
- Any gas work on the existing boiler
- Tax rulings, which only HMRC can give
- Planning approval where permitted development doesn’t apply
If in doubt, ring 07833 053749 or send an email and we’ll say what we think.
Where we work
- Hot water cylinders
- Air-to-water heat pumps
- Underfloor heating
- Air-to-air heat pumps
- Homes heated by oil, LPG or gas
- Radiator systems
Managing agents and facilities teams in Rayners Lane
From a single flat to a whole estate, the approach is the same: a look at the job first, a fixed-price quote, work booked with the occupier and written records afterwards.
Where a tenant occupies the property but the landlord owns the system, it’s worth checking the agreement for who looks after the system. We are happy to deal with either side and send the records to whoever needs them.
Keeping the system healthy
Looking after it is simple, and it makes the next visit easier:
- Keep up with insulation and draught-proofing
- Clear leaves and debris from the outdoor unit
- Use the settings explained at handover
If anything doesn’t seem right after installation, call us on 07833 053749 or email us and we’ll talk it through. Annual servicing helps keep the system working well.
Keep insulation and draught-proofing in good order, as lower heat loss means the system has less to do.
Towns and villages near Rayners Lane
Other services in Rayners Lane
Questions from Rayners Lane
Can I have air conditioning in a flat in Rayners Lane?
Often, yes, but the lease and the freeholder typically have a say. 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.
Do I need planning permission for a heat pump in Rayners Lane?
That depends on the building and where the outdoor unit goes. Central Rayners Lane sits inside a conservation area. The permitted development rules for heat pumps leave out listed buildings and stop outdoor units going on road-facing walls or roofs in conservation areas. Anything outside the rules needs an application, and we raise it with the planning department at Harrow council, usually the authority for Rayners Lane first.
Do you cover Rayners Lane?
Yes. Our engineers work in Rayners Lane, as part of our area across London and the South East. We’re based in East Grinstead, West Sussex.
Do you survey before quoting?
Yes. We always look before we price, on a survey, or from your photos and details where the job is simple. A fixed-price quote follows.
Can I get the Boiler Upgrade Scheme grant?
It depends on your home and the system. In England and Wales, the scheme offers £7,500 towards an eligible air-to-water or ground source heat pump, and £2,500 towards an air-to-air heat pump only in limited cases. We check before you commit.
Do I need to service the system to keep the warranty?
That depends on the brand. Where servicing is a condition, a missed service could give the manufacturer grounds to refuse a claim and we’ll tell you what your brand asks for.
Whose job is it to check the system for leaks?
Whoever operates the equipment, together with the technicians who service it. Systems below 5 tCO2e fall outside the set leak check intervals, while larger ones need checks at least every 12 months, or every 6 months from 50 tCO2e. We can tell you which band your system falls into.
Air source heat pumps around Rayners Lane
About 71% of homes in and around Rayners Lane were built between the wars, according to VOA council tax data. Homes of that age often have cavity walls that may or may not be insulated, which the survey checks. In London, outside space and the rules for flats often decide which kind of heat pump suits.
If your home is listed, like Headstone Manor about 1.7 miles north-east, listed building consent comes before any heat pump work. Period properties close to St. Andrew’s Church can suit a heat pump, though insulation and any heritage protection are checked first.
Rayners Lane is about 1 mile west of Harrow, in Greater London. Homes and businesses alike in Rayners Lane, we can help with air source heat pumps. You will hear back from us the same working day and our emergency line runs 24/7. Our area takes in 764 places across Greater London. For properties nearby, see our London page (13 miles or so).
The closest recent job we can point to from Rayners Lane was on Richmond Hill, Richmond (TW10), about 9 miles south: installing a Mitsubishi Electric Zubadan multi-split system serving four bedrooms, the study and the living room: six indoor units in total.
If your postcode is in HA2, HA5 and HA4, the property is within reach. From Kings Road, The Avenue and Torbay Road to the smaller roads in between, nowhere is left out. Places around Rayners Lane that are also on our list: Roxbourne (1 mile west), North Harrow (1 mile north-east), Harrow (1 mile east), Eastcote (1 mile north-west) and South Harrow (1 mile south-east). Further out, we also cover London (13 miles south-east), City of Westminster (10 miles south-east), Marylebone (10 miles east) and Kensington (9 miles south-east).
What’s near Rayners Lane
In Rayners Lane, that means homes and buildings near Eastcote House Gardens, Pinner High School and Heathfield School, among other places. The closest station to Rayners Lane is Northolt Park station, about 1.2 miles south-east. Well-known places in the area include Clementine Churchill Hospital (1.9 miles east) and St. George's Shopping Centre (1.6 miles east). Not far away are Northala Fields and Islip Manor Meadows.
What happens on the day
Each visit follows the same order: check the plan with you, put the dust sheets down, carry out the job, check the system and explain it all to you. On site, the work takes anything from a couple of days for air-to-air to the best part of a week for air-to-water with radiator changes. Photos of the room and where the outdoor unit could go let us plan most of a visit to Rayners Lane in advance.
- We start with your plans and the property.
- We survey for heat loss and look at radiators, cylinder space and outdoor unit options.
- We recommend air-to-water or air-to-air and check the grant position.
- The system is installed and connected to the controls.
- We commission it, complete the MCS certificate and show you how to use it.
How to prepare
- Tell us about parking and loading
- Clear access to the fuse board
- Clear the space around the indoor unit, or where it will go
Get a fixed-price quote
Quoting starts with a diagnosis, from a site survey or, where the job is straightforward, from pictures and measurements. Then you get a fixed price so you know the cost before we begin.
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From one of our customers
“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