Greater London · Heat pump installation
Heat pump installers in St Helier
Looking for air source heat pumps in St Helier? We diagnose first, fix the price and book the work around you, finishing with proper records.
- An oil, LPG or gas boiler near the end of its life
- Working out where a cylinder could go
- Wanting to stop using oil, LPG or gas for heating
Air source heat pumps in St Helier
A £2,500 grant is available for some air-to-air heat pumps, with conditions. The system must replace the existing fossil-fuel heating and meet the home’s full heating demand, it must be installed by an MCS certified installer, and it must be in a home, so an add-on next to a boiler is not eligible. The work covers underfloor heating, air-to-air heat pumps and radiator systems, and people most often call us about checking whether planning permission is needed and working out whether radiators need upsizing.
In a flat in St Helier, the lease and the freeholder usually decide where a heat pump can go. Permitted development limits are different for flats, so we check the position before we design.
Refrigerant work is written up in the F-Gas records: what was done, the refrigerant type and any amount added or recovered. File them with the system’s paperwork, as a manufacturer or a future engineer may ask to see them.
- Place
- St Helier (SM5, SM4, SM1)
- Region
- Greater London
- Approvals
- NICEIC and F-Gas, MCS
- Price guide
- £8,000–£16,000 before the grant, 0% VAT on homes
- Replies
- We reply the same working day
- Pricing
- Fixed, in writing
- Phone
- 07833 053749
- Updated
- 30 October 2026
What owners can safely do
Refrigerant is off limits for anyone without the right qualifications. Under the F-gas rules, engineers need their own qualifications and the company must be certified, and refrigerant lines can cause cold burns. A suspected leak is our job, not yours.
Leave the units and pipework where they are. Moving a unit involves the refrigerant circuit, so it needs an F-Gas qualified engineer, and the electrics need care too. If you need something moved, we can quote for it.
Questions from St Helier
Is a heat pump in St Helier permitted development?
The answer turns on the property and where the outdoor unit would sit. The centre of St Helier is in a conservation area. A heat pump on a house can be permitted development if it meets the conditions, including the MCS noise check, but not within the grounds of a listed building, and in a conservation area the outdoor unit cannot face a road. Where necessary, we check with Sutton council, which is usually the planning authority for St Helier.
Does the Boiler Upgrade Scheme cover homes in St Helier?
St Helier is in England, where the Boiler Upgrade Scheme runs. 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.
What warranty do I get?
It’s the manufacturer’s, and the terms are theirs. Some brands make regular servicing a condition, so keep your service records.
Will you make a mess?
Floors and furniture near the work are covered with dust sheets before we start, and the area is kept tidy throughout. At the end, we clear up and show you what we have done.
Why use an F-Gas certified company?
F-Gas certification shows a company is approved to work on equipment containing fluorinated gases, such as the refrigerant in air conditioning and heat pumps. In Great Britain, that certification is a legal requirement, not an optional extra, and we hold it.
Who is responsible for leak checks?
The F-gas rules share it between the equipment’s operator and the engineers who work on it. How often depends on the size of the refrigerant charge in tonnes of CO2 equivalent: at least yearly for 5 to under 50 tCO2e, and every 6 months for 50 to under 500 tCO2e.
Do you work in St Helier?
Yes. We work across Greater London, Surrey, Kent, East and West Sussex, Hampshire, the Isle of Wight, Berkshire, Buckinghamshire, Oxfordshire, Hertfordshire and Essex, and that includes St Helier.
Homes in St Helier and heat pumps
Valuation Office Agency council tax records show about 69% of homes in St Helier and the neighbourhoods around it date from 1919 to 1939, and about 49% of households live in terraced houses, according to the 2021 Census. For homes of that age, the survey checks the insulation, the radiators and the hot water setup. Terraced houses share walls with neighbours, which helps, but the outdoor unit position needs care with noise next door. In London, outside space and the rules for flats often decide which kind of heat pump suits.
If you live near Sutton Common station, the survey compares air-to-water and air-to-air for your home before anything is quoted.
St Helier is about 3 miles south-east of Wimbledon, in Greater London. Properties in St Helier get the same service as everywhere we cover: a look at the job first, a fixed-price quote and written records at the end. Across Greater London, we cover 764 places, and St Helier is one of them.
Not far from St Helier, a recent job of ours was on Throwley Way, Sutton (SM1), about 1 mile south: installing two LG wall-mounted units in the open-plan working area and a third unit in the client meeting room.
Our working area takes in SM5, SM4 and SM1. Kelso Road, Wrythe Lane and Whitby Road and the roads off them are all inside our area. Neighbouring places we cover include Rosehill (1 mile north-east), Benhilton (1 mile south-west), The Wrythe (1 mile south-east), Carshalton (1 mile south-east) and Sutton (1 mile south). Larger places within reach include London (9 miles north-east), City of Westminster (9 miles north), Marylebone (9 miles north) and Kensington (8 miles north).
Near you in St Helier
Locally, jobs take us to houses, flats and workplaces close to Greenshaw High School, The Cricketers Inn and Merton College and the streets around them. For rail, the closest station is Sutton Common station, roughly 0.8 miles south-west. Well-known places in the area include St Helier Hospital (under half a mile south) and Chessington Castle Hill (5 miles west). Green spaces nearby include Bennett's Hole and Duppas Hill.
Landlords, agents and facilities managers
From a single flat to a whole estate, you get the same standard: a look at the job first, a fixed-price quote, work booked with the occupier and written records afterwards.
We also work for facilities teams in offices, schools and public buildings across Greater London. Larger buildings can be done in stages around the people who use them.
What we do, step by step
Testing is the last part of the visit wherever the system can be switched on. Then we show you what we have done and answer any questions, and anything that needs a follow-up is pointed out there and then. The visit takes several days for an air-to-water system with a new cylinder, less for an air-to-air system. Photos of the room and where the outdoor unit could go let us plan most of a visit to St Helier in advance.
- It begins with your house and the heating it relies on now.
- Every room’s heat loss is worked out on site.
- We design the system, check the radiators and cylinder and look at the outdoor unit position.
- You get a fixed price, with any grant and the VAT set out.
- Then it’s fitted, commissioned and registered with MCS.
Getting ready for the visit
- Move furniture away from the wall where we’ll be working
- Tell us about access, such as roof hatches, high walls or locked plant areas
- Name a contact who can meet us at the agreed time
Get a fixed-price quote
If you need air source heat pumps in St Helier, call us on 07833 053749 or send an email. Let us know the type of property and what you need, plus some pictures if they’re to hand. We reply the same working day.
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Common problems we fix in St Helier
For homes with no mains gas, heated by oil or LPG, a heat pump is well worth considering. 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.
These are the situations we see most often:
- Working out where a cylinder could go
- Choosing between air-to-water and air-to-air
- Checking emitters for a heat pump
Period properties close to St Peter's Church can suit a heat pump, though insulation and any heritage protection are checked first.
Questions to ask before you book
- Whether testing, commissioning and paperwork are included
- What paperwork you’ll receive afterwards
- Whether the electrical work is done by a registered contractor, such as NICEIC approved
Towns and villages near St Helier
What else we do in St Helier
What a customer said
“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