Greater London · Heat pump installation
Heat pump installers in South Harrow
For MCS certified installation of air source heat pumps for heating and hot water, with the Boiler Upgrade Scheme grant applied for in South Harrow, one call is all it takes, from the first look to sign-off. An F-Gas certified company, NICEIC approved, on Checkatrade.
- Not knowing whether a grant applies
- Replacing a combi boiler with a heat pump
- Planning and permitted development questions
How we handle air source heat pumps in South Harrow
An air-to-water heat pump costs £8,000–£16,000 (0% VAT on homes), before the grant. In England and Wales, the Boiler Upgrade Scheme offers a £7,500 grant towards an eligible air-to-water installation and the installer makes the application. Not every home qualifies, so we check eligibility before you commit. We are often asked to deal with radiators that may be too small for a heat pump and deciding which kind of heat pump suits the home, across air-to-water heat pumps, homes heated by oil, LPG or gas and hot water cylinders.
For flats in South Harrow, the lease, the freeholder and the rules for flats all come into it. The planning rules for flats are stricter than for houses, so we check the position before we design.
If a fault appears while the equipment is under the manufacturer’s warranty, tell us the make, model and installation date. We will tell you how the manufacturer’s warranty is likely to apply before anything chargeable is done.
- Where
- South Harrow (HA2, HA1, UB5)
- Region
- Greater London
- Quote
- A fixed price before work begins
- Credentials
- F-Gas certified, NICEIC approved, MCS
- Response
- On the working day you ask
- Costs
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Phone
- 07833 053749
- Reviewed
- 30 October 2026
What we do, step by step
If the system has to be off for part of the visit, we tell you before work begins so it does not catch you out. In a business, work can often be done one area at a time. The work takes a few days on site, depending on the cylinder, the radiators and the pipework involved. For a job in South Harrow, tell us about parking, permits and access to the building when you get in touch.
- You tell us about the home and what you want from a heat pump.
- The survey checks heat loss, emitters, hot water and the outdoor unit position.
- We recommend air-to-water or air-to-air and check the grant position.
- We install the heat pump and connect it up.
- The job ends with commissioning, the MCS certificate and a walk through the controls.
How to prepare
- Make sure we can reach the outdoor unit, or where it will go
- Find the manual or the paperwork for the system, if you have it
- Tell us about access, such as roof hatches, high walls or locked plant areas
Getting a price
Photos are the fastest route to a quote: the inside and outside of the property where the work is, plus the rating plate of any unit already there. Add the address and what you’d like done, and many jobs can be priced from that.
Advice
Towns and villages near South Harrow
Also in South Harrow
What affects the cost of air source heat pumps
Before we fix a price, we need to know a few things. We look at:
- A single visit or a regular plan
- The electrical supply and whether a new circuit is needed
- The number of rooms, units or zones
A single unit or a whole estate, we price it on the same basis: the work involved, the access and the equipment. The price is fixed before we start, and the quote sets out the VAT.
Before you get in touch
Good pictures often save a visit. Try to include:
- A few photos of the room and the wall the unit is on, or will go on
- The outside wall, roof or yard where the outdoor unit sits or would go
- The rating plate or label on any existing unit
For air source heat pumps in South Harrow, phone 07833 053749, or email if that’s easier. Let us know the type of property and what you need, and send a few pictures if you can. We reply the same working day.
Different systems, different jobs
Air-to-water heat pumps
Air-to-water systems work at lower temperatures than boilers, which is why radiator sizing is part of the survey.
The Boiler Upgrade Scheme
In England and Wales, the Boiler Upgrade Scheme offers grants towards heat pumps: £7,500 for air-to-water (and ground source), and £2,500 for air-to-air with strict conditions. The application goes through the installer.
South Harrow: your questions answered
Do I need permission to put air conditioning in my flat in South Harrow?
Usually, yes, though leaseholders normally need the freeholder’s agreement. Permitted development rules for flats are tighter than for houses, so we check the outdoor unit position and give you the details to send to the freeholder or managing agent.
Does the Boiler Upgrade Scheme cover homes in South Harrow?
Yes, the scheme covers homes in England, including South Harrow, 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.
Does servicing affect my warranty?
It depends on the manufacturer’s terms. Some warranty terms require the system to be serviced regularly by a qualified engineer, so it’s worth checking. Keep every service record either way.
How long will it take to install a heat pump?
As a guide, it 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. We plan the work so you’re without heating for as little time as possible, and we explain it in advance.
Whose job is it to check the system for leaks?
Whoever operates the equipment, together with the technicians who service it. Larger systems need regular checks: at least every 12 months from 5 tCO2e and every 6 months from 50 tCO2e. We can tell you which band your system falls into.
Why use an F-Gas certified company?
The law says any company working on equipment containing F gas has to be certified, and the engineers need their own qualifications. It’s how you know the refrigerant is being handled legally and safely.
What warranty do I get?
Warranty comes from the manufacturer and depends on the brand and product. Daikin, for example, gives a standard 2 years on split air conditioning and we explain the terms for your brand on the quote.
Heat pumps in South Harrow: local notes
About 45% of homes in and around South Harrow were built between the wars, according to the Valuation Office Agency’s council tax figures. Whether the walls and loft have been insulated makes a real difference to the heat pump size for homes of that period. London homes can be short of space for an outdoor unit and cylinder, which affects the choice of heat pump.
For a home near Northolt Park station, the survey looks at whether an air-to-water or air-to-air heat pump suits better. If your home is one of the older properties near Parish Church of St Paul, the survey checks whether it’s listed or in a conservation area before the outdoor unit position is chosen.
South Harrow is about 1 mile south of Harrow, in Greater London. Whatever kind of property you have in South Harrow, we can help with air source heat pumps. We reply to enquiries the same working day and our emergency line runs 24/7. Count every place we list in Greater London and you reach 764, with South Harrow on the list. The nearest of our city pages is London, around 12 miles from South Harrow.
The closest recent job we can point to from South Harrow was on Richmond Hill, Richmond (TW10), about 8 miles south: installing a Mitsubishi Electric Zubadan multi-split system serving four bedrooms, the study and the living room: six indoor units in total.
Park Lane, Grange Road and Dudley Road and the roads off them are all inside our area. If your postcode is in HA2, HA1 and UB5, you’re inside the area we cover. Places around South Harrow that are also on our list: Roxeth (1 mile north-east), Harrow (1 mile north), Harrow on the Hill (1 mile east), Rayners Lane (1 mile north-west) and Northolt (1 mile south-west). Larger places within reach include London (12 miles east), City of Westminster (9 miles east), Marylebone (9 miles east) and Kensington (8 miles south-east).
Around South Harrow
Locally, jobs take us to houses, flats and workplaces close to Orley Farm School, Northwick Park and St Dominic's Sixth Form College. South Harrow’s nearest station is Northolt Park station, about 0.5 miles south-west of the centre. A little further out are St. George's Shopping Centre (1.3 miles north-east) and Kodak Museum (2 miles north). The countryside around South Harrow includes Middle Lake and Northala Fields.
Landlords, agents and facilities managers
The F-gas rules share responsibility for leak checking between the equipment’s operator and the service technicians. Where a building is let or managed, the lease or contract should make clear who looks after the system, and we can work for either side.
We work for landlords, letting agents and managing agents as well as homeowners and businesses. Tell us who the contact on site is and who should receive the paperwork and we’ll copy in whoever needs it.
A customer’s words
“Excellent service from start to finish. Two wall-mounted units installed in our home. Clean, tidy work: they protected all the floors and left no mess. The systems work brilliantly. Would highly recommend.”
Sarah M., East Grinstead