Surrey · Heat pump installation
Heat pump installation in Coldharbour, Surrey
Air source heat pumps for Coldharbour and the surrounding area: diagnosis first, then a fixed-price quote, the work and written records. Ask us for a fixed-price quote.
- Checking emitters for a heat pump
- Wanting to stop using oil, LPG or gas for heating
- Planning and permitted development questions
Air source heat pumps around Coldharbour
About 40% of homes across Coldharbour and its surrounding area were built before 1919, according to Valuation Office Agency council tax records, and the 2021 Census found about 76% of households in detached or semi-detached houses. Period properties can still suit a heat pump, but the design has to start from accurate heat loss figures. Finding room for the outdoor unit and a cylinder is seldom a problem in homes like these. The centre of Coldharbour lies within the Coldharbour Conservation Area. Christ Church, listed at grade II, is one of roughly 5 protected buildings and structures in the half-mile around Coldharbour’s centre. For a heat pump, permitted development doesn’t apply within the grounds of a listed building, and in a conservation area the outdoor unit can’t go on a wall or roof facing a road, so we check with the planning team at Mole Valley council, which typically handles Coldharbour where necessary.
Period properties close to Christ Church can suit a heat pump, though insulation and any heritage protection are checked first.
Coldharbour is about 4 miles south of Dorking, in Surrey. Wherever you are in the RH5 postcode area, we cover air source heat pumps. Count every place we list in Surrey and you reach 395, with Coldharbour on the list. There’s also a page for Horsham, roughly 8 miles from Coldharbour.
Not far from Coldharbour, a recent job of ours was on South Street, Dorking (RH4), about 4 miles north: installing two Panasonic wall-mounted units: one in the main treatment room and one in the reception and waiting area.
If your postcode is in RH5, we can take the job on. Nearby, we also cover air source heat pumps in Abinger Bottom (2 miles north-west), South Holmwood (2 miles north-east), Holmwood Corner (2 miles east), Friday Street (2 miles north-west) and Beare Green (2 miles east). Further out, we also cover Guildford (10 miles north-west), Woking (13 miles north-west), Epsom (11 miles north) and Horley (8 miles east).
Near you in Coldharbour
Typical jobs here are in properties near Wotton and Abinger Commons and Plough Inn. The nearest railway station is Holmwood station, about 1.6 miles east. Nearby you’ll also find Mesolithic Museum (2.6 miles north-west) and Abinger Castle (2.6 miles north-west). For a walk, there’s Vann Lake and Leith Hill.
Air source heat pumps in Coldharbour
We begin with a room-by-room heat loss survey. That tells us how much heat the home needs, room by room, so the heat pump and the radiators or indoor units can be sized properly. Guesswork leads to systems that are too big or too small. Common call-outs are for deciding which kind of heat pump suits the home and working out whether radiators need upsizing, across homes heated by oil, LPG or gas, air-to-air heat pumps and radiator systems.
Older and listed homes in villages like Coldharbour need extra care, and permitted development does not cover listed buildings, so we check consent first.
Aftercare is simple, and most of it is in the manual: keep the outdoor unit clear, follow the manufacturer’s guidance on cleaning and book a service at the interval they recommend. It also keeps you on the right side of any warranty terms that ask for servicing.
- Location
- Coldharbour (RH5)
- Region
- Surrey
- Typical price
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Certified
- F-Gas certified, NICEIC approved, MCS
- Pricing
- Fixed after a survey or pictures
- Call
- 07833 053749
- Updated
- 30 October 2026
The process
The work area is kept tidy throughout, with dust sheets down and offcuts and packaging cleared up. Any holes, fixings or cable routes are agreed with you before we drill. The visit takes a few days on site, depending on the cylinder, the radiators and the pipework involved. Work in Coldharbour is booked in advance at a time that suits you.
- It starts with a conversation about the home, the existing heating and your plans.
- The survey measures heat loss room by room and looks at radiators, hot water and the best spot for the outdoor unit.
- The price comes back fixed and in writing, with the grant and VAT shown line by line.
- Fitting day: the outdoor unit is placed, the indoor side connected and the controls set up.
- Once it’s running correctly, the MCS certificate is issued and we show you the settings.
Before we arrive
- Plan for pets to be kept clear during the visit
- Clear the space around the indoor unit, or where it will go
- Let us know if the building has a permit or sign-in process
Getting a quote
Getting a quote is straightforward. Send a few details and pictures, and we reply the same working day. Where a survey is needed, we arrange a time that suits you.
Related advice
What we are called out for in Coldharbour
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:
- Working out where a cylinder could go
- Questions about listed buildings or conservation areas
- Questions about the Boiler Upgrade Scheme
Sizing comes from the heat each room loses on a cold day, not from the size of the old boiler.
Before you book anyone
- Whether anyone has checked the property or the system first
- Who does the electrical work, and whether they can certify it
- Exactly what the price includes, from supply and fitting to commissioning
Places near Coldharbour
What else we do in Coldharbour
Questions from Coldharbour
Will you come out to Coldharbour?
Yes. Coldharbour is within the area we cover across London and the South East. Send a few details and photos, and we reply the same working day.
Does the Boiler Upgrade Scheme cover homes in Coldharbour?
Coldharbour is covered, as the scheme runs across England and Wales. The grant is £7,500 for an air source (air-to-water) heat pump and £2,500 for an air-to-air system that replaces the existing fossil-fuel heating. The installer applies, and we are MCS certified.
Will you work on another installer’s system?
Yes. We work on systems fitted by other installers as well as our own, on all the main brands. Tell us the make and model and send any paperwork you have.
When will I hear back?
We reply to enquiries the same working day. If it’s an emergency, ring the 24/7 line instead.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line for breakdowns that can’t wait. Ring 07833 053749 any time and explain the problem.
Do you work on all makes?
We install and work on the leading makes, from Mitsubishi Electric, Daikin and Fujitsu to Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. Send us the make and model if you have it.
How much does an air source heat pump cost?
Expect £8,000–£16,000 for an air-to-water system, with 0% VAT on homes, before the grant is taken off. Where you land depends on the size of heat pump, any radiators that need changing and the hot water cylinder. Air-to-air is priced after a survey.
Let and managed properties
When the building owner and the occupier are different, the lease or tenancy agreement normally sets out who maintains what. We can quote either party, and the paperwork can go to both.
Portfolio owners often want one contractor and one number. Our area covers Greater London and the South East, so a run of properties can go into one programme and kept on a regular cycle.
Before you call an engineer
Never try to top up, release or handle refrigerant yourself. The law requires anyone working on equipment containing F gas to hold the right qualifications, and the company to be certified, and escaping refrigerant can cause cold burns. A suspected leak is our job, not yours.
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 call 07833 053749 or write to us at info@aircondoctor.co.uk.
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