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Air source heat pump outside a home
Greater London · SW12

Air source heat pumps in Balham

Everything for switching a Balham home to an air source heat pump, from the heat loss survey and grant paperwork to installation, servicing and repairs.

Area
Greater London
Postcode district
SW12
Nation
England
Nearby
Tooting, Streatham, Clapham

From Balham out to Tooting and Streatham, we arrange heat pump surveys, installation and aftercare across Greater London. Each job is designed around the home's measured heat loss.

Heat pump services in Balham

All services in Balham:

Grants and rules for heat pumps in England

England

Homes in Balham 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.

There is no VAT on installing a heat pump anywhere in the UK until 31 March 2027. In England most houses can have an air source heat pump under permitted development, provided the unit meets the MCS noise and siting standards; the old 1 m boundary limit was removed on 29 May 2025. We flag listed buildings, flats and sensitive conservation-area positions at survey.

Heat pump guide prices in Balham

Here are typical prices for an air source heat pump in Greater London, installed and including VAT. Use the guide price tool for a figure based on your home, then a survey confirms it in writing.

Heat pump guide prices in Balham
HomeTypical sizeInstalled guide priceAfter £7,500 grant
1–2 bedroom flat or small terrace4–5 kW£10,650–£14,000£3,150–£6,500
2–3 bedroom terrace or semi5–7 kW£11,750–£15,100£4,250–£7,600
3 bedroom semi or small detached6–9 kW£13,450–£17,350£5,950–£9,850
4 bedroom detached8–12 kW£15,700–£20,150£8,200–£12,650
5+ bedroom or larger older house11–16 kW£18,500–£25,200£11,000–£17,700

Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning.

How long is the heating season in Balham?

7 h 50 minDaylight on the shortest day
16 h 38 minDaylight on the longest day
15°Noon sun height in December
51.44°NLatitude of Balham

On the shortest day Balham gets about 7 hours 50 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.

Heat pumps in Balham: questions

Do I need new radiators for a heat pump in Balham?

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 Balham home gives a room-by-room list.

How soon can you survey a home in Balham?

Survey dates depend on how busy installers are in Greater London. We offer the next available dates when you enquire and confirm them in writing.

Where would the outdoor unit go on a Balham house?

Usually at the side or rear, on a level base with space around it for airflow and servicing, away from bedroom windows where possible. The surveyor checks positions at your Balham home.

How long does installation take in Balham?

Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Balham home states the expected time.

Ready to price your heat pump?

Use the guide price tool, or book a free home survey and fixed written quote.

CallGet a quote