Essex · Heat pump installation
Heat pump installers in Gaston Green
Looking for air source heat pumps in Gaston Green? We diagnose first, fix the price and book the work around you, finishing with proper records.
- Moving away from fossil-fuel heating
- Radiators that may be too small for a heat pump
- No space for a hot water cylinder
How we handle air source heat pumps in Gaston Green
A £2,500 grant is available for some air-to-air heat pumps, with conditions. It has to replace the fossil-fuel heating, cover the whole heating demand, be fitted by an MCS certified installer and be in a home, so an add-on next to a boiler is not eligible. If the problem is wanting to stop using oil, LPG or gas for heating and replacing a combi boiler with a heat pump, we can sort it out.
Older and listed homes in villages like Gaston Green need extra care, and permitted development does not cover listed buildings, so consent comes first.
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.
- Place
- Gaston Green (CM22)
- Wider area
- Essex
- Approvals
- NICEIC approved, F-Gas certified, MCS
- Quote
- A fixed price before any work starts
- Prices
- £8,000–£16,000 (0% VAT on homes), before the grant
- Phone
- 07833 053749
- Reviewed
- 30 October 2026
Landlords, agents and facilities managers
Portfolio owners often want one contractor and one number. Our area covers Greater London and the South East, so work at different addresses can be planned together and kept on a regular cycle.
The F-gas rules share responsibility for leak checking between the equipment’s operator and the service technicians. In a let or managed building, it’s worth agreeing who that operator is, and we can work for either side.
What the work involves, system by system
Heat loss surveys
A heat loss survey measures how much heat each room loses on a cold day. Everything else is sized from it.
Air-to-air heat pumps
Air-to-air heat pumps warm rooms through indoor units and can cool them in summer. Hot water needs a separate source so you’ll need another way to heat it.
Places near Gaston Green
Other services in Gaston Green
The process
On the day, we arrive at the time agreed with you and run through the plan before anything else. Dust sheets go down over floors and anything close to the work, and the electrics are made safe before any panel comes off. On site, it takes a few days for most air-to-water installations, with air-to-air systems often quicker. A few pictures help us make the most of a visit to Gaston Green.
- We talk through your home, your current heating and what you want from a heat pump.
- The survey measures heat loss room by room and looks at radiators, hot water and the best spot for the outdoor unit.
- You get a fixed-price quote, with any grant you’re eligible for and the VAT explained.
- Fitting day: the outdoor unit is placed, the indoor side connected and the controls set up.
- We commission the heat pump, complete the MCS paperwork and talk you through the controls.
How to prepare
- Find the manual or the paperwork for the system, if you have it
- Arrange for someone to be there to let us in
- Let us know where the consumer unit is
Getting a price
Every quote shows the VAT clearly, and the rate that applies to your job is stated. Homes, businesses and different kinds of work can be treated differently for VAT, so we confirm it on the quote. For a fixed-price quote, ring 07833 053749 or fill in the contact form.
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What you can do yourself, and what needs us
Good habits make our visits easier, not unnecessary. Clean filters and a clear outdoor unit help the system run as it should, but the refrigerant circuit, the electrics and the parts you can’t see still need an engineer at the interval the manufacturer recommends.
Never try to top up, release or handle refrigerant yourself. The law requires anyone working on equipment containing F gas to hold the right qualifications, and the company to be certified, and refrigerant lines can cause cold burns. If you suspect a leak, switch the system off and call us.
What a heat pump looks like in Gaston Green
About 40% of homes in and around Gaston Green date from 1945 to 1972, according to VOA council tax data, and the 2021 Census found about 62% of households in detached or semi-detached houses. For homes of that age, the survey checks the insulation, the radiators and the hot water setup. Finding room for the outdoor unit and a cylinder is seldom a problem in homes like these.
Historic houses such as Barrington Hall, about 3.2 miles east, are a reminder that listed homes need consent before a heat pump goes in. If your home is one of the older properties near Church of St Mary the Virgin, the survey checks whether it’s listed or in a conservation area before the outdoor unit position is chosen.
Gaston Green is about 3 miles south of Bishop's Stortford, in Essex. We cover Gaston Green for air source heat pumps, along with the rest of Essex. Across Essex, we cover 644 places, Gaston Green among them. London, roughly 26 miles off, has its own page on this site.
Every address in CM22 is covered, from busy streets to back roads. If you need air source heat pumps at a property on Sawbridgeworth Road and Old Mill Lane or anywhere close by, our engineers can take on the work. Close to Gaston Green, our area also takes in Little Hallingbury (1 mile north), Spellbrook (1 mile west), Thorley Street (1 mile north-west), Lower Sheering (2 miles south) and Thorley (2 miles north-west). We also work in nearby towns such as Chelmsford (15 miles south-east), Harlow (5 miles south-west), Brentwood (15 miles south) and Loughton (14 miles south).
Around Gaston Green
Around Gaston Green, our work takes us to homes and businesses near Leventhorpe and The George pub. The nearest railway station is Sawbridgeworth station, roughly 1.4 miles south-west of the centre. Well-known places in the area include Harlow Mill (3.5 miles south-west) and Herts and Essex Hospital (2.3 miles north). The countryside around Gaston Green includes Sawbridgeworth Marsh and Portingbury Hills.
Common questions in Gaston Green
Is a heat pump in Gaston Green permitted development?
It depends on the property. Historic England lists about 31 buildings and structures within half a mile of the centre of Gaston Green. The permitted development rules for heat pumps leave out listed buildings and stop outdoor units going on road-facing walls or roofs in conservation areas. Anything outside the rules needs an application, and we raise it with the planning department at Uttlesford council, usually the authority for Gaston Green first.
Do you cover smaller places like Gaston Green?
Yes, and the size of the place makes no difference to how we work. Send a few details and pictures, and we reply the same working day.
Will my home qualify for the Boiler Upgrade Scheme?
We check the scheme rules for your property before you go ahead. As the installer, we make the application where you qualify.
What VAT do I pay on a heat pump?
Installing an air source heat pump in a home is zero-rated until 31 March 2027, then 5%. It does not apply to businesses. This is general information, not tax advice.
Whose job is it to check the system for leaks?
Whoever operates the equipment, together with the technicians who service it. 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.
Should I choose air-to-water or air-to-air?
The right choice depends on the property and what you need. The grant is £7,500 for eligible air-to-water systems and £2,500 for air-to-air in limited cases. We explain the options after the survey.
Do you work for landlords and businesses?
Yes. From a single let flat to offices, shops and public buildings, the approach is the same: a look first, a fixed-price quote and written records.
From one of our customers
“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