Greater London · Heat pump installation
Tolworth air source heat pumps
Our engineers work in Tolworth on MCS certified installation of air source heat pumps for heating and hot water, with the Boiler Upgrade Scheme grant applied for. A look at the job first, a fixed-price quote and written records at the end.
- Choosing between air-to-water and air-to-air
- No space for a hot water cylinder
- Planning and permitted development questions
Air source heat pumps for homes and businesses in Tolworth
Hot water from an air-to-water system is stored in a cylinder. If you have a combi boiler and no cylinder, the survey looks at where one could go. Air-to-air systems don’t heat hot water, so you will need another way to do that. If the problem is planning and permitted development questions and comparing heat pump types, we can sort it out.
Homes in Tolworth are often flats and terraces, where outside space is limited, which affects which heat pump suits. Air-to-water needs room for the outdoor unit and normally a cylinder, while an air-to-air system needs less space.
Looking after a system is mostly common sense: clear space around the outdoor unit, the cleaning the manual describes and a service at the recommended interval. It also keeps you on the right side of any warranty terms that ask for servicing.
- Where
- Tolworth (KT5, KT6, KT3)
- Region
- Greater London
- Certified
- NICEIC and F-Gas, MCS
- Costs
- £8,000–£16,000 (0% VAT on homes), before the grant
- Price
- A fixed price before we start
- Enquiries
- We reply the same working day
- Telephone
- 07833 053749
- Page updated
- 30 October 2026
System by system
VAT on heat pumps
Please treat this as general guidance rather than tax advice.
Heat loss surveys
A heat loss survey measures how much heat each room loses on a cold day. Everything else is sized from it.
Questions from Tolworth
Can I get the Boiler Upgrade Scheme grant in Tolworth?
Yes, the scheme covers homes in England, including Tolworth, if they qualify. 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. You do not apply yourself: the MCS certified installer does, which is us.
Can I have air conditioning in a flat in Tolworth?
Often, yes, but the lease and the freeholder usually 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.
How does the warranty work?
The manufacturer provides it, on its own terms. Some brands make regular servicing a condition, so keep your service records.
How soon will you get back to me?
The same working day. Then we agree a date that works for you, with a fixed price before work starts.
Should I choose air-to-water or air-to-air?
Air-to-water heats radiators or underfloor heating and hot water; air-to-air heats rooms through indoor units and can cool them. With air-to-air, hot water needs another source and the survey helps decide.
Which accreditations do you hold?
As the law requires for refrigerant work, we are an F-Gas certified company. We are also NICEIC approved, MCS certified for heat pumps and Checkatrade members.
Do you offer maintenance contracts?
Yes. We offer maintenance contracts, set at the interval the system and the manufacturer’s terms need. Each visit is recorded and F-Gas records kept where they apply.
Nearby places to Tolworth
Also in Tolworth
When to call us in Tolworth
Homes off the gas grid, heated by oil or LPG, are often good candidates to look at. The Boiler Upgrade Scheme includes an extra £1,500, until March 2027, for air source or ground source heat pumps in homes heated by oil or LPG with no mains gas where the home is eligible.
Customers usually contact us when they notice one of these:
- Deciding on the outdoor unit position
- Moving away from fossil-fuel heating
- Working out whether radiators need upsizing
If you live near Tolworth station, the survey compares air-to-water and air-to-air for your home before anything is quoted.
Questions to ask before booking
- How VAT is shown, and which rate applies
- Whether the price is fixed or an estimate
- If the quote is based on a survey, photos or a diagnosis
Owner checks or an engineer?
Owners can handle the everyday basics: 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.
Owner care supports servicing; it does not replace it. Simple care keeps the air moving through the system, but the inside of the units, the refrigerant and the electrics still need a qualified engineer.
Air source heat pumps in Tolworth: the local picture
VOA council tax data show about 75% of homes in and around Tolworth date from 1919 to 1939, and about 63% of households live in detached or semi-detached houses, according to the last census (2021). Whether the walls and loft have been insulated makes a real difference to the heat pump size for homes of that period. Detached and semi-detached houses normally have room for the outdoor unit and a cylinder. In London, outside space and the rules for flats often decide which kind of heat pump suits.
Fitznells Manor, roughly 2.5 miles south-east, is a reminder to check your home’s listing status: permitted development doesn’t cover listed buildings.
Tolworth is about 2 miles north-west of Ewell, in Greater London. Homes and businesses alike in Tolworth, our engineers can help with air source heat pumps. You’ll hear back from us the same working day and our emergency line runs 24/7. Count every place we list in Greater London and you reach 764, with Tolworth on the list. Our Croydon page covers places nearby, about 8 miles away.
The closest recent job we can point to from Tolworth was on Beaufort Road, Kingston upon Thames (KT1), about 2 miles north: installing a Samsung wall-mounted unit in the garden studio and a second unit in the main bedroom.
Local streets include Pyne Road, Ewell Road and Derby Road, all of which are in our area. Work in KT5, KT6 and KT3 follows the same survey, fixed-price quote and written records as everywhere else we cover. Close to Tolworth, our area also takes in Berrylands (1 mile north), Old Malden (1 mile south-east), Surbiton (1 mile north-west), Worcester Park (1 mile south-east) and Chessington (2 miles south-west). Larger places within reach include London (11 miles north-east), City of Westminster (11 miles north-east), Marylebone (11 miles north-east) and Kensington (9 miles north-east).
Near you in Tolworth
In Tolworth, that means homes and buildings near Richard Challoner School, Hogsmill LNR and Shrewsbury House School. The closest station to Tolworth is Tolworth station, roughly 0.5 miles south of the centre. A little further out are Cockney Museum (2.1 miles south-east) and Bentall Centre (2.2 miles north-west). For a walk, there’s Southwood Open Space and The Lake.
How the visit works
Everything the job needs comes with us, from tools and test equipment to ladders and dust sheets. You only need to give us clear access to the units, or their planned positions, and to the fuse board. The visit takes from a couple of days to around a week, depending on the system and how much of the heating changes. A note on parking and access helps us plan a visit to Tolworth.
- 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.
- A fixed-price quote follows, setting out the system, any grant that applies and the VAT.
- The outdoor unit, the indoor equipment and the controls are installed and connected.
- The system is commissioned and registered under MCS, and we show you how to use it.
Preparing for the visit
- Have the make and model of any existing unit to hand
- Let us know if the building has a permit or sign-in process
- Let us know if the units are on a roof, a high wall or in a locked area
Ask for a quote
Our prices page gives typical ranges, but your quote is based on your job, because every property is different. After a look at the job, by pictures or a survey, the price is fixed. To start, call us on 07833 053749 or use the quote form.
Advice
From one of our customers
“Excellent service from start to finish. Two wall-mounted units installed in our home. Clean, tidy work: they protected all the floors and left no mess. The systems work brilliantly. Would highly recommend.”
Sarah M., East Grinstead