- Area
- Surrey
- Postcode district
- GU9
- Nation
- England
- Guide price
- From £10,150 inc VAT
- Survey
- Free for installation enquiries
What to know about air source heat pump installation in Farnham
Most homes can run on a heat pump if the system is designed properly, and Farnham is no different. The key is matching the heat pump and radiators to the home's heat loss.
Installers working in Farnham plan the order of work so heating and hot water are off for as short a time as practical. Homeowners across Surrey can arrange a survey in Farnham for a room-by-room design and a written quote before committing to anything.
We survey your home, design a heat pump system around its real heat loss, and manage the installation from the first visit to the MCS certificate.
- Households with room for a hot water cylinder
- Owners and landlords in England and Wales eligible for the Boiler Upgrade Scheme
- Homes replacing a gas, oil, LPG or electric heating system
What's included
- Outdoor unit, hot water cylinder and weather compensation controls
- System design, unit sizing and a written quote
- Boiler Upgrade Scheme application in England and Wales where eligible
- Commissioning, handover and a walk-through of the controls
- Free home survey and room-by-room heat loss calculation
Terraced streets in Farnham often mean a compact unit position at the rear, so siting and sound levels are checked carefully.
Grants and rules for heat pumps in England
Homes in Farnham can use the Boiler Upgrade Scheme, which takes £7,500 off the cost of an air source heat pump when it replaces fossil-fuel or electric heating. Replacing oil or LPG heating qualifies for £9,000 for installations from 21 July 2026 to 31 March 2027, and air-to-air systems for £2,500. The MCS-certified installer named in your quote applies for the grant and deducts it from the price.
Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Since 29 May 2025, permitted development in England allows up to two air source heat pumps on a house, each up to 1.5 m³, with no blanket 1 m boundary rule — the installation must still meet the MCS planning standards, including the noise check. Listed buildings, flats and some conservation-area positions need extra consent, which we check at survey.
Guide prices for air source heat pump installation in Farnham
The ranges below are typical installed prices for homes in Surrey, including VAT. A survey sets the exact figure, because two similar-looking houses in Farnham can need quite different radiators and pipework.
| Home | Typical size | Installed guide price | After £7,500 grant |
|---|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £10,150–£13,400 | £2,650–£5,900 |
| 2–3 bedroom terrace or semi | 5–7 kW | £11,250–£14,450 | £3,750–£6,950 |
| 3 bedroom semi or small detached | 6–9 kW | £12,850–£16,600 | £5,350–£9,100 |
| 4 bedroom detached | 8–12 kW | £15,000–£19,250 | £7,500–£11,750 |
| 5+ bedroom or larger older house | 11–16 kW | £17,650–£24,100 | £10,150–£16,600 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning.
Short winter days in Farnham and what they mean
On the shortest day Farnham gets about 7 hours 52 minutes of daylight, and the winter sun reaches only around 15° above the horizon at noon. Winters this far south are milder than in most of the UK, which helps a heat pump run at low flow temperatures for much of the season.
From survey to switch-on in Farnham
- Tell us about your home: postcode, property type and current heating.
- We book a survey in Farnham; the surveyor measures rooms, windows and radiators and looks at cylinder space.
- The design and quote arrive in writing, including radiator changes and the outdoor unit position.
- On installation days the old system is removed and the new one fitted and filled.
- We commission the heat pump, show you the controls and register the installation.
Air source heat pump installation in Farnham: questions
Do you cover Aldershot as well as Farnham?
Yes. We arrange surveys and installation in Aldershot, which is about 3 miles north-east of Farnham, and across Surrey.
Do I need new radiators for a heat pump in Farnham?
Often some, not all. Heat pumps run best at lower water temperatures, so rooms with small radiators may need larger ones. The survey of your Farnham home gives a room-by-room list.
Can you service a heat pump in Farnham that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Farnham, whoever fitted them. Tell us the make and model when you book.
Can I cancel after accepting the quote?
Nothing is ordered until you accept the written quote. Where the contract is agreed away from our premises, for example at your kitchen table, you can cancel within 14 days under the Consumer Contracts Regulations 2013. If you ask us to start sooner and then cancel, you pay only for work done up to that point.
How long does an air source heat pump installation take?
A typical home installation takes 2–4 days on site. It takes longer if several radiators are being replaced, pipework is being upgraded or the cylinder is going in a new location. Your quote sets out the expected programme, including when you will be without heating and hot water. Timings are typical rather than fixed, because older homes sometimes reveal surprises once floorboards are lifted.