Essex · Heat pump installation
Air Source Heat Pumps in Writtle
Air source heat pumps in Writtle from an F-Gas certified company, with warranty terms explained brand by brand. We reply to enquiries the same working day.
- Working out whether radiators need upsizing
- Deciding on the outdoor unit position
- An oil, LPG or gas boiler near the end of its life
About our air source heat pumps in Writtle
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 you’re dealing with working out whether radiators need upsizing and replacing a combi boiler with a heat pump, we can help.
Homes around Writtle usually have space for an outdoor unit and a hot water cylinder, so heat loss, radiators and the electrics are what we check.
Think of the paperwork as the system’s health record: what was fitted or found, what was done and when. It makes the next visit quicker and any warranty question simpler, so keep it safe.
- Location
- Writtle (CM1)
- Region
- Essex
- Certified
- NICEIC approved, F-Gas certified, MCS
- Quotes
- A fixed price before work begins
- Prices
- £8,000–£16,000 before the grant, 0% VAT on homes
- Phone
- 07833 053749
- Page updated
- 30 October 2026
Air source heat pumps around Writtle
The Writtle Conservation Area lies close to the centre of Writtle, within about a third of a mile. Listed buildings are part of the picture here: about 43 within half a mile of the centre, such as Church of All Saints (grade II*). For a heat pump, permitted development does not apply within the grounds of a listed building, and in a conservation area the outdoor unit cannot go on a wall or roof facing a road, so we check with the local planning authority (normally Chelmsford council) where needed. The Valuation Office Agency’s council tax figures date about 60% of homes in the Writtle area to the post-war years, 1945 to 1972, and about 73% of households live in detached or semi-detached houses, according to the 2021 Census. Whether the walls and loft have been insulated makes a real difference to the heat pump size for homes of that period. Houses typically have space for an outdoor unit and a hot water cylinder.
Period properties close to Church of All Saints can suit a heat pump, though insulation and any heritage protection are checked first.
Writtle is about 3 miles west of Chelmsford, in Essex. Whatever kind of property you have in Writtle, 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. Writtle is one of 644 places in Essex where we work for homes and businesses. London is in our area too, around 27 miles away.
You will find streets such as Millfields, Well Field and Little Meadow, and we cover them all. Our engineers cover all of the CM1 postcode area for air source heat pumps and the streets around it. Other places close to Writtle include Widford (2 miles south-east), Moulsham (2 miles east), Chignall St James (2 miles north), Patching (2 miles north-east) and Chelmsford (3 miles east). We also work in nearby towns such as Basildon (11 miles south), Braintree (12 miles north-east), Harlow (13 miles west) and Brentwood (9 miles south-west).
Around Writtle
In Writtle, that means homes and buildings near Rose And Crown Public House, Hylands School and Central Park. For rail, the closest station is Chelmsford station, roughly 2.1 miles east of the centre. A little further out are Peter Edwards Museum And Library (2 miles east) and Bond Street Chelmsford (2.4 miles east). The countryside around Writtle includes Newland Grove.
Writtle questions
Can I get the Boiler Upgrade Scheme grant in Writtle?
Writtle is covered, as the scheme runs across England and Wales. Whether your home qualifies, and for how much, depends on the type of heat pump and the heating it replaces. We hold MCS certification, so the application is ours to make for you.
Is Writtle within the area you cover?
We do. Villages and hamlets get the same service as the bigger towns. A few photos and the postcode are enough to get things started.
Do I need new radiators for a heat pump?
It depends on each radiator and the room it heats. At the lower temperatures a heat pump uses, radiators need more surface, and the survey checks each one.
Who has to arrange F-Gas leak checks?
Responsibility is shared between the operator, typically whoever owns or controls the equipment, and the service technicians. The interval depends on the refrigerant charge, measured in tonnes of CO2 equivalent: at least every 12 months from 5 tCO2e, and every 6 months from 50 tCO2e.
Is a heat pump permitted development?
Many installations on houses in England fall under permitted development, subject to the rules. Listed buildings are excluded, and listed building consent is separate. We check what applies to you.
How much does an air source heat pump cost?
For air-to-water, the price is £8,000–£16,000 (0% VAT on homes) before any grant. Eligible homes in England and Wales can get £7,500 through the Boiler Upgrade Scheme though not every home qualifies.
Is there a survey before the work?
Yes. Every job is looked at first, either on a site survey or from photos and details for simple jobs. Then you get a fixed-price quote.
Do you need air source heat pumps in Writtle?
Air-to-air systems interest people who want cooling in summer as well as heating. They warm rooms directly through indoor units and switch to cooling in warm weather. The grant only applies in some cases, so we check first.
Keep an eye out for any of the following:
- A boiler that’s getting old
- Radiators that may be too small for a heat pump
- Checking whether planning permission is needed
With Hylands about 1.4 miles south-east, it’s worth asking whether your own home is listed before planning a heat pump.
Questions to ask before booking
- Whether the quote shows VAT clearly
- Whether a new circuit is included and who certifies it
- Exactly what the price includes, from supply and fitting to commissioning
Nearby places to Writtle
What else we do in Writtle
What air source heat pumps can’t fix
We won’t sell you work that does not address the problem, so these are the things it will not cover:
- Insulation work, such as loft or cavity wall insulation
- Any gas work on the existing boiler
- Formal advice on VAT for your situation
Not sure which it is? You can ring 07833 053749 or send an email and we’ll tell you honestly.
Where we work
- Air-to-water heat pumps
- Homes heated by oil, LPG or gas
- Hot water cylinders
- Radiator systems
- Air-to-air heat pumps
- Underfloor heating
Safe owner checks
Never try to top up, release or handle refrigerant yourself. Under the F-gas rules, engineers need their own qualifications and the company must be certified, and escaping refrigerant can cause cold burns. If you suspect a leak, switch the system off and call us.
There are a few things you can safely do yourself: keep the outdoor unit clear of leaves, plants and clutter, check the settings and the remote, and follow the cleaning the manual describes. Opening up the units, the electrics and the refrigerant circuit are a job for us.
What happens on the day
Testing is the last part of the visit wherever the system can be switched on. Then we show you what we’ve done and answer any questions, and anything that needs attention later is pointed out. All told, the work takes anything from a couple of days for air-to-air to the best part of a week for air-to-water with radiator changes. We load the van from the survey notes so the work in Writtle can be done in one go where possible.
- It begins with your house and the heating it relies on now.
- We measure heat loss for every room.
- We design the system, check the radiators and cylinder and look at the outdoor unit position.
- Cost, grant and VAT appear on one fixed-price quote.
- Installation, commissioning and MCS registration complete the job.
How to prepare
- Make sure we can reach the consumer unit or fuse board
- Give us access to the outside wall, roof or yard where the outdoor unit sits
- Mention any managing agent or landlord rules we need to follow
Getting a quote
Quoting starts with a diagnosis, from a site survey or, where the job is straightforward, from pictures and measurements. After that, we send a fixed price so you know the cost before we begin.
Related advice
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