Greater London · Heat pump installation
Heat pump installation in Nash, Greater London
Air source heat pumps in and around Nash, from a site survey or diagnosis to sign-off with the price fixed before work begins.
- No space for a hot water cylinder
- Moving away from fossil-fuel heating
- Ageing boilers that will need replacing
Air source heat pumps in Nash, done properly
Heat pumps run at lower flow temperatures than most boilers, so radiators may need to be larger to give out the same heat. We check each radiator against the room’s heat loss and anything that needs changing is in the quote. If you’re dealing with radiators that may be too small for a heat pump and replacing a combi boiler with a heat pump, we can sort it out.
In a flat in Nash, the lease and the freeholder usually decide where a heat pump can go. 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’ll explain how the manufacturer’s terms are likely to apply before anything chargeable is done.
- Where
- Nash (BR2)
- Region
- Greater London
- Guide price
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Certified
- F-Gas certified company, NICEIC approved, MCS
- Quote
- Fixed after a survey or photos
- Phone
- 07833 053749
- Reviewed
- 30 October 2026
Common questions in Nash
Do I need permission to put air conditioning in my flat in Nash?
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.
Does the Boiler Upgrade Scheme cover homes in Nash?
Nash is in England, where the Boiler Upgrade Scheme runs. Air-to-water and ground source systems attract £7,500. Air-to-air gets £2,500, but only where it takes over from fossil-fuel heating and covers the whole home’s heating demand. As an MCS certified installer, we apply for it on your behalf.
Will I get records for the system?
Yes. It’s the record a manufacturer or the next engineer will ask to see: the date, the work, and any refrigerant added or recovered.
Can you look at a system you didn’t fit?
Yes. We look at it first and tell you what we find, including any issues with how it was fitted. Any work is priced before it goes ahead.
Can I do any of the installation myself?
Anything that involves the refrigerant needs an F-Gas qualified engineer from a certified company. That’s a legal requirement, and manufacturers expect it for their warranty too. We can quote for the whole job, from supply to commissioning.
Whose job is it to check the system for leaks?
The operator of the equipment, working with qualified engineers. 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.
Do you work on commercial properties?
Yes. From one rented home to commercial buildings, the approach is the same: a look first, a fixed-price quote and written records.
What happens on the day
Wherever the system can be run before we leave, we run it and check it in operation. Then we show you what we have done and answer any questions, and anything that needs a follow-up is pointed out there and then. All told, the work takes a few days on site, depending on the cylinder, the radiators and the pipework involved. Before a visit in Nash, we ask where the van can stop and how we reach the outdoor unit.
- It begins with your house and the heating it relies on now.
- We measure heat loss for every room.
- 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.
- Then it’s fitted, commissioned and registered with MCS.
Before we arrive
- Arrange for someone to be there to let us in
- Unlock any gate, garage or side passage we need
- Keep pets and children away from the work area
Get a fixed-price quote
Every quote shows the VAT clearly, with the rate that applies to your job. VAT can differ between homes and businesses and between kinds of work, so we confirm it on the quote. For a fixed-price quote, give us a ring on 07833 053749 or fill in the contact form.
Advice
Homes in Nash and heat pumps
About 69% of homes in Nash and the neighbourhoods around it were built between the wars, according to VOA council tax data, and the 2021 Census found about 78% of households in detached or semi-detached houses. Whether the walls and loft have been insulated makes a real difference to the heat pump size for homes of that period. Finding room for the outdoor unit and a cylinder is seldom a problem in homes like these. For a London home, the outdoor unit position and the MCS noise check need careful planning.
Live in one of the older houses around Keston Parish Church? Expect the survey to look closely at heat loss and at the building’s planning status.
Nash is about 3 miles south of Bromley, in Greater London. We cover Nash for air source heat pumps and across the rest of Greater London. 764 places in Greater London are on our list, large and small.
Our nearest recent job to Nash was on Westmoreland Road, Bromley (BR2), about 3 miles north: installing a Mitsubishi Electric multi-split system serving the master bedroom, second bedroom and living room.
If you need air source heat pumps at a property on Nash Lane and North Pole Lane or a nearby road, we can help. Work in BR2 follows the same survey, fixed-price quote and written records as everywhere else we cover. If you’re just outside Nash, we cover Keston (1 mile east), Leaves Green (1 mile south-east), Hayes (1 mile north), New Addington (2 miles south-west) and Farthing Street (2 miles south-east). We also work in nearby towns such as London (11 miles north-west), City of Westminster (13 miles north-west), Marylebone (13 miles north-west) and Kensington (14 miles north-west).
Around Nash
Locally, jobs take us to houses, flats and workplaces close to The Greyhound pub, All Saints Catholic School and Coney Hall Recreation Ground and the streets around them. For rail, the closest station is Hayes (Kent) station, about 1.4 miles north. Other landmarks nearby include The Mall (3.2 miles north) and Bethlem Museum of the Mind (1.8 miles north). Open spaces near Nash include Hutchinson's Bank and Summer Hill.
Safe owner checks
For air conditioning, cleaning the indoor unit’s filters is the main job owners can do, if the manual says so. They come out, get a gentle clean and go back only when they’re dry. For a heat pump, the main owner jobs are a clear outdoor unit and sensible control settings.
There are a few things you can safely do yourself: keeping the outdoor unit clear, checking the mode and set temperature, and the routine cleaning in the manual. Opening up the units, the electrics and the refrigerant circuit are a job for us.
What affects the cost of air source heat pumps
Jobs vary more than people expect. What affects the quote:
- The size of the job
- What we find on the survey or diagnosis
- The brand, model and parts involved
Height, access and the distance between the indoor and outdoor units can all change the price. Each of those is built into the quote and give you a fixed price before we start.
Before you get in touch
Good pictures often save a visit. Try to include:
- Where the property is and what kind of building it is
- Your consumer unit or fuse board
- Any previous service or F-Gas records
The quickest way to a quote is to send pictures: the inside and outside of the property where the work is, plus the rating plate of any unit already there. Tell us the address and what you need, and many jobs can be priced from that.
Signs you need air source heat pumps in Nash
Air-to-air systems interest people who want cooling in summer as well as heating. They warm rooms directly through indoor units, and can cool them when it’s hot. The grant only applies in some cases, so we check first.
What we’re most often called about:
- Ageing boilers that will need replacing
- Questions about listed buildings or conservation areas
- Questions about the Boiler Upgrade Scheme
Down House, roughly 2.4 miles south-east, is a reminder to check your home’s listing status: permitted development doesn’t cover listed buildings.
Comparing quotes
- Whether the quote shows VAT clearly
- What paperwork you will receive afterwards
- Whether they looked at the job before pricing it
What else we do in Nash
What a customer said
“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