Surrey · Heat pump installation
Heat pump installation in Merstham, Surrey
Air source heat pumps for Merstham, from F-Gas certified engineers, with warranty terms explained brand by brand. Enquiries answered the same working day.
- Checking whether planning permission is needed
- Radiators that may be too small for a heat pump
- Wanting to stop using oil, LPG or gas for heating
Air source heat pumps for homes and businesses in Merstham
A heat pump takes heat from the outside air and moves it into your home with electricity running the compressor and fans. It works on the same principle as air conditioning, run the other way, and air-to-air heat pumps are sometimes simply called air conditioning. Typical jobs include checking whether planning permission is needed and deciding which kind of heat pump suits the home, on radiator systems, air-to-air heat pumps and underfloor heating.
Homes around Merstham normally have room outside for a heat pump, so the design focuses on heat loss and radiators.
Aftercare is simple, and most of it is in the manual: clear space around the outdoor unit, the cleaning the manual describes and a service at the recommended interval. That also helps where the warranty terms ask for regular servicing.
- Where
- Merstham (RH1)
- Region
- Surrey
- Enquiries
- On the working day you ask
- Price guide
- £8,000–£16,000 before the grant, 0% VAT on homes
- Certified
- NICEIC and F-Gas, MCS
- Pricing
- A fixed price before we start
- Telephone
- 07833 053749
- Page updated
- 30 October 2026
Heat pumps in Merstham: local notes
About 62% of homes across Merstham and its surrounding area date from 1945 to 1972, according to the Valuation Office Agency’s council tax figures. Homes of that age often have cavity walls that may or may not be insulated, which the survey checks. Roughly a third of a mile or less from central Merstham, you reach the Rockshaw Road Conservation Area. Draw a one-mile circle round the middle of Merstham and it takes in 2 conservation areas. Listed buildings are part of the picture here: about 29 within half a mile of the centre, such as Church of St Katharine (grade II*). So the heat pump survey asks two extra questions here: is the home listed, and is it inside a conservation area?
Period properties close to Church of St Katharine can suit a heat pump, though insulation and any heritage protection are checked first. If you live near Merstham station, the survey compares air-to-water and air-to-air for your home before anything is quoted.
Merstham is about 2 miles north of Redhill, in Surrey. If you need air source heat pumps in Merstham, it’s easy to get a fixed-price quote: please phone 07833 053749 or fill in the contact form. Our area covers London and the South East, including Merstham. Count every place we list in Surrey and you reach 395, with Merstham on the list.
Not far from Merstham, a recent job of ours was on Frenches Road, Redhill (RH1), about 2 miles south: installing a Mitsubishi Electric wall-mounted unit in the open-plan living and kitchen area.
Whether you are on London Road North, Shepherd's Hill and Church Hill or a nearby road, our engineers can take on the work. If your postcode is in RH1, we can take the job on. Places around Merstham that are also on our list: South Merstham (1 mile south), Gatton (1 mile south-west), Holmethorpe (1 mile south), Hooley (2 miles north) and Netherne on-the-Hill (2 miles north). Within a short drive, we also cover Epsom (7 miles north-west), Horley (6 miles south), Ewell (7 miles north-west) and Reigate (3 miles south-west).
Landmarks near Merstham
We fit and service air conditioning in homes and premises around Merstham Park School, Nutfield Marshes and East Surrey College and the streets around them. For rail, the closest station is Merstham station, roughly 0.5 miles south of the centre. Nearby you’ll also find Surrey Fire Museum (2.8 miles south-west) and Bletchingley Castle (2.8 miles south-east). Green spaces nearby include South London Downs National Nature Reserve and Colley Hill.
Rented and managed buildings
We regularly work with managing agents. Send the address, what’s needed and how access works, and we will send a fixed-price quote.
Running several properties is easier with one contractor. We work across London and the South East, so work at different addresses can be planned together and kept to a regular schedule.
Merstham: your questions answered
Can I get the Boiler Upgrade Scheme grant in Merstham?
Merstham is covered, as the scheme runs across England and Wales. Whether your home qualifies, and for how much, depends on the type of heat pump and the heating it replaces. The installer applies, and we are MCS certified.
Do you cover smaller places like Merstham?
We do. Villages and hamlets get the same service as the bigger towns. Visits to smaller places are planned so the engineer arrives with what the job needs.
Do I need to service the system to keep the warranty?
Check the manufacturer’s terms. Some warranty terms require the system to be serviced regularly by a qualified engineer, so check the terms or ask us. Keep every service record either way.
Will I need planning consent for an air source heat pump?
Many installations on houses in England fall under permitted development, subject to the rules. Listed buildings and their curtilages are excluded, and listed building consent is a separate matter. We check what applies to you.
How much time does a heat pump install need?
A typical installation takes from a couple of days to around a week, depending on the system and how much of the heating changes. The programme is planned to keep time without heating short and agreed before we start.
How soon will you get back to me?
The same working day. After that, we agree a survey, diagnosis or installation date that suits you, with a fixed price before work starts.
Which manufacturers do you install and repair?
We work with the leading brands, including Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. Send us the make and model if you have it.
Before you call an engineer
Before you call us about a fault, a few checks can save a visit: is the system in the right mode, is the set temperature sensible, are the remote’s batteries working and has the breaker tripped. If a breaker trips again after you reset it, leave it off and ring 07833 053749 or write to us at info@aircondoctor.co.uk.
Keep a note of anything odd: an error code, a new noise, a drip, a smell or a change in how well the system heats or cools. It helps us diagnose quickly, and a photo or a short video of the display is even better.
Places near Merstham
Other services in Merstham
How it works
Wherever the system can be run before we leave, we run it and check it in operation. Then we explain what was done and answer your questions, and anything that needs attention later is pointed out. All told, the work takes from a couple of days to around a week, depending on the system and how much of the heating changes. A note on how to find the property and where to park makes a visit to Merstham easier.
- We start with your plans and the property.
- The survey checks heat loss, emitters, hot water and the outdoor unit position.
- You get our view on the right type for the house, and on whether the Boiler Upgrade Scheme applies.
- The system is installed and connected to the controls.
- The job ends with commissioning, the MCS certificate and a walk through the controls.
Preparing for the visit
- Make sure we can reach the consumer unit or fuse board
- Give us access to the outside wall, roof or yard where the outdoor unit sits
- Arrange for someone to be there to let us in
Ask for a quote
Some jobs can be priced from pictures, while others need a survey. Multi-room systems, commercial buildings and anything with a long or hidden pipe route are normally surveyed first. Either way, the quote is fixed before anything goes ahead.
Read more
What air source heat pumps can’t fix
Some problems need a different service or another trade:
- Improving the building’s insulation
- Gas boiler work, such as disconnecting the old boiler, which needs a Gas Safe registered engineer
- A grant for a home that does not meet the scheme rules
If you are not sure, just phone us on 07833 053749 or drop us a line and we’ll give you a straight answer before booking.
Parts of the system we cover
- Air-to-air heat pumps
- Air-to-water heat pumps
- Hot water cylinders
- Homes heated by oil, LPG or gas
- Underfloor heating
- Radiator systems
What a customer said
“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