Surrey · Heat pump installation
Grafham air source heat pumps
Expert air source heat pumps for Grafham: a survey or diagnosis, a fixed price, careful work and proper paperwork. Ask us for a fixed-price quote.
- Working out where a cylinder could go
- Checking eligibility for a heat pump grant
- Moving away from fossil-fuel heating
About our air source heat pumps in Grafham
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 as the installer we apply for it on your behalf. Eligibility depends on the property, so we confirm it before anything is agreed. If you are dealing with not knowing whether a grant applies and choosing between air-to-water and air-to-air, we can sort it out.
If your home in or near Grafham is heated by oil, LPG or electric heaters with no mains gas, an extra £1,500 is available through the Boiler Upgrade Scheme until March 2027, on top of the £7,500.
Any work on the refrigerant circuit is recorded: the work carried out, the refrigerant involved and the quantities. File them with the system’s paperwork, ready for the next service or a warranty query.
- Place
- Grafham (GU5)
- Region
- Surrey
- Accreditations
- F-Gas certified company, NICEIC approved, MCS
- Pricing
- A fixed-price quote up front
- Typical price
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Call
- 07833 053749
- Checked
- 30 October 2026
Before you call an engineer
Some faults have simple causes you can check first: check the mode, the set temperature, the remote’s batteries and the breaker. If a breaker trips again after you reset it, leave it off and ring us on 07833 053749 or email us.
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.
Also in Grafham
How it works
Anything involving refrigerant is handled by F-Gas qualified engineers, as the law requires, while the electrical side is covered by our NICEIC approval. So on the day, you do not need a separate electrician for the electrical side. On site, it takes a few days on site, depending on the cylinder, the radiators and the pipework involved. Pictures of the space and where the outdoor unit could go let us plan the work in Grafham.
- First, a chat about the property and your goals for the heating.
- A survey covers heat loss, radiators, hot water and where the outdoor unit could sit.
- We explain which type of heat pump suits the home and whether a grant could apply.
- 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
- Keep pets and children away from the work area
- Name a contact who can meet us at the agreed time
- Clear access to the fuse board
Ask for a quote
Published ranges are a starting point; the quote is built on your property, because no two buildings, rooms or systems are the same. After a look at the job, by photos or a survey, the price is fixed. To start, phone 07833 053749.
Advice
Common questions in Grafham
Does the Boiler Upgrade Scheme cover homes in Grafham?
Yes, the scheme covers homes in England, including Grafham, if they qualify. For an air-to-water heat pump the amount is £7,500; an air-to-air system can get £2,500 if it replaces the fossil-fuel heating outright, meets the home’s full heating demand and isn’t an add-on to a boiler. You don’t apply yourself: the MCS certified installer does, which is us.
Is Grafham within the area you cover?
Yes. Grafham is within the area we cover across London and the South East. A few photos and the postcode are enough to get things started.
Will I get records for the system?
Yes. You get a written record of every visit, including F-Gas records for any refrigerant work. File them with the system’s paperwork.
Do I need to service the system to keep the warranty?
It can, for some brands. Send us the make and model and we’ll tell you what the manufacturer expects and stick to the interval they set.
Do you offer emergency call-outs?
Yes, 24/7. Call the emergency line and tell us the make, the symptoms and any error code, and we’ll talk you through the next steps.
Who is responsible for leak checks?
The operator of the equipment, working with qualified engineers. Larger systems need regular checks: at least every 12 months from 5 tCO2e and every 6 months from 50 tCO2e. We’ll work out which band applies to yours.
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.
Homes in Grafham and heat pumps
About 78% of households live in detached or semi-detached houses, according to Census 2021 figures. Houses normally have space for an outdoor unit and a hot water cylinder. On the National Heritage List, around 11 entries fall within 0.5 miles of the middle of Grafham; Church of St Andrew (grade II*) is one. That affects heat pumps: listed buildings need consent, and conservation areas limit where the outdoor unit can go under permitted development. Where necessary, we check with the local planning authority (usually Waverley council).
Live in one of the older houses around Church of St Andrew? Expect the survey to look closely at heat loss and at the building’s planning status.
Grafham is about 6 miles south of Guildford, in Surrey. If you need air source heat pumps in Grafham, please call us on 07833 053749 or write to us at info@aircondoctor.co.uk for a fixed-price quote. Our area covers London and the South East, Grafham included. 395 places in Surrey are on our list, large and small. Our Guildford page covers places nearby (6 miles or so).
The closest recent job we can point to from Grafham was on High Street, Cranleigh (GU6), about 3 miles south-east: installing two Daikin wall-mounted units in the main working hall and a third unit in the meeting room.
We work across the GU5 postcode area. Places around Grafham that are also on our list: Birtley Green (1 mile north), Shamley Green (1 mile north), Thorncombe Street (1 mile west), Stroud Common (1 mile north-east) and Rowly (2 miles east). Further out, we also cover Guildford (6 miles north), Woking (11 miles north), Camberley (14 miles north-west) and Farnham (11 miles west).
Around Grafham
Typical jobs here are in properties near Cucknell's Wood and the streets around them. For rail, the closest station is Chilworth station, roughly 3.5 miles north of the centre. Other landmarks nearby include Godalming Museum (3.6 miles north-west) and Guildford Castle (4.9 miles north). Open spaces near Grafham include St Martha's Hill and Colyer's Hanger and Lower Lake.
What air source heat pumps cannot fix
We’d rather tell you now than sell you work that will not help, so here are the limits:
- Improving the building’s insulation
- Grants for hybrid systems or replacements of low-carbon systems
- Gas boiler work, such as disconnecting the old boiler, which needs a Gas Safe registered engineer
If you’re not sure, just call us on 07833 053749 or email us and we’ll give you a straight answer.
What we work on in Grafham
- Homes heated by oil, LPG or gas
- Radiator systems
- Air-to-water heat pumps
- Underfloor heating
- Air-to-air heat pumps
- Hot water cylinders
Do you need air source heat pumps in Grafham?
Many people look at heat pumps when an oil, LPG or gas boiler is getting old. Starting early leaves time for the survey, the design and any grant application instead of making a rushed decision when the heating stops.
Customers typically contact us after spotting one of these:
- Checking eligibility for a heat pump grant
- No space for a hot water cylinder
- Finding a place for the outdoor unit
Chilworth Manor, roughly 3.8 miles north, is a reminder to check your home’s listing status: permitted development does not cover listed buildings.
Questions to ask before booking
- Whether anyone has checked the property or the system first
- What’s in the price and what isn’t
- If the figure could change on the day
A customer’s words
“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