Essex · Heat pump installation
Air Source Heat Pumps in Great Leighs
Our engineers work in Great Leighs on heat pump installation. A look at the job first, a fixed-price quote and written records at the end.
- Not knowing whether a grant applies
- An oil, LPG or gas boiler near the end of its life
- Checking emitters for a heat pump
Air source heat pumps in Great Leighs
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; adding it alongside a boiler does not qualify. Typical jobs include a boiler that’s getting old and working out whether radiators need upsizing, on homes heated by oil, LPG or gas, radiator systems and hot water cylinders.
Older and listed homes in villages like Great Leighs need extra care, because permitted development does not apply within the grounds of a listed building, so consent comes first.
Whatever the visit, you get a written record: commissioning details for an installation, a fault and repair note for a repair, or a record of the service. File it with the manual, because it helps with any later warranty question.
- Where
- Great Leighs (CM3)
- Region
- Essex
- Credentials
- F-Gas certified company, NICEIC approved, MCS
- Prices
- £8,000–£16,000 (0% VAT on homes), before the grant
- Quote
- Fixed, in writing
- Enquiries
- On the working day you ask
- Telephone
- 07833 053749
- Checked
- 30 October 2026
What we are called out for in Great Leighs
Many people look at heat pumps when an oil, LPG or gas boiler is getting old. Planning the change before the boiler fails gives you time to survey, design and apply for any grant instead of making a rushed decision when the heating stops.
These are the situations we see most often:
- Checking eligibility for a heat pump grant
- An oil, LPG or gas boiler near the end of its life
- Working out where a cylinder could go
Period properties close to Church of St John the Evangelist can suit a heat pump, though insulation and any heritage protection are checked first.
Questions to ask before you book
- Whether anyone has checked the property or the system first
- Whether a new circuit is included and who certifies it
- Whether the quote shows VAT clearly
How the job changes from property to property
Outdoor unit position and planning
Flats and blocks of flats have different limits, and Article 4 directions can remove rights. Listed buildings also need separate consent and we check what applies to you.
VAT on heat pumps
Heat pumps in homes carry 0% VAT until 31 March 2027, and 5% after that following HMRC’s rules on energy-saving materials. It doesn’t apply to businesses.
Common questions in Great Leighs
Will a heat pump in Great Leighs need planning permission?
There’s no single answer: the building and the outdoor unit position decide it. Historic England lists about 19 buildings and structures within half a mile of the centre of Great Leighs. On a house, an air source heat pump can often go ahead under permitted development, with an outdoor unit of no more than 1.5 cubic metres and an installation that meets MCS 020(a), which includes a noise check. Those rights don’t reach the grounds of a listed building, and conservation areas rule out walls or roofs facing a road. If that might affect you, we ask the planning department at Chelmsford council, usually the authority for Great Leighs.
Is Great Leighs within the area you cover?
Yes, and the size of the place makes no difference to how we work. A few photos and the postcode are enough to get things started.
Do I need to service the system to keep the warranty?
It can, for some brands. Read the manufacturer’s terms, or send us the make and model and we will explain them, and book the service at the interval they recommend.
Are my radiators big enough for a heat pump?
That depends on the room’s heat loss and the radiator’s size. We check them all during the survey, so the quote covers any changes.
What’s the price of a heat pump installation?
Expect £8,000–£16,000 for an air-to-water system, with 0% VAT on homes, before the grant is taken off. The heat pump size, radiator changes and the cylinder decide where in that range you are. Air-to-air is priced after a survey.
Can you look at a system you didn’t fit?
Yes. We look at it first and tell you what we find, including anything about the original installation that needs putting right. You get a fixed price before any work goes ahead.
Does the grant cover air-to-air heat pumps?
The air-to-air grant is £2,500, and only some homes qualify. The system has to replace the fossil-fuel heating and heat the whole home, installed by an MCS certified installer.
Places near Great Leighs
Other services in Great Leighs
Looking after it afterwards
Looking after it is simple, and it makes the next visit easier:
- Don’t block radiators or indoor units with furniture
- Keep up with insulation and draught-proofing
- Avoid switching the heat pump on and off often
If you were eligible for a grant, we handle the application and keep you updated, as the installer applies for it.
A well-insulated home helps a heat pump, as lower heat loss means the system has less to do.
What happens on the day
Each visit runs to the same pattern: agree the plan on site, protect the area, do the work, check the system and talk you through it. On site, the work takes a few days on site, depending on the cylinder, the radiators and the pipework involved. For a village like Great Leighs, tell us about narrow lanes, gates and parking when you book.
- We find out about your home and the heating you have now.
- Every room’s heat loss is worked out on site.
- From those figures we size the heat pump and decide on radiators, cylinder and outdoor position.
- Cost, grant and VAT appear on one fixed-price quote.
- We install, commission and register the system under MCS.
How to prepare
- Tell us about parking and loading
- Unlock any gate, garage or side passage we need
- Make sure someone can let us in at the agreed time
Ask for a quote
Published ranges are a starting point; the quote is built on your property, because every property is different. Once we’ve looked at the job, from pictures or on a survey, you get a fixed price. To get going, phone us on 07833 053749 or send an email.
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Air source heat pumps around Great Leighs
The last census (2021) found about 73% of households in detached or semi-detached houses. Finding room for the outdoor unit and a cylinder is seldom a problem in homes like these.
A heat loss calculation decides the size of heat pump your home needs.
Great Leighs is about 4 miles south-west of Braintree, in Essex. For air source heat pumps in and around Great Leighs, it’s easy to get a fixed-price quote: please give us a ring on 07833 053749 or fill in the contact form. Our area covers London and the South East, including Great Leighs. Count every place we list in Essex and you reach 644, with Great Leighs on the list. For properties nearby, see our London page, about 34 miles away.
If your postcode is in CM3, we can take the job on. If you need air source heat pumps at a property on Aragon Road, Fortune Close and Audley Road or a nearby road, our engineers can take on the work. We also cover the places around Great Leighs: Gubbion's Green (1 mile east), Young's End (1 mile north-east), Fuller Street (1 mile south-east), Row Green (2 miles north-east) and Fairstead (2 miles east). Further out, we also cover Chelmsford (6 miles south), Braintree (4 miles north-east), Maldon (10 miles south-east) and Billericay (14 miles south).
What’s near Great Leighs
We fit and service air conditioning in homes and premises around The Castle pub. For rail, the closest station is Cressing station, about 3.4 miles north-east. Other landmarks nearby include William Julien Courtauld Hospital (3.6 miles north-east). Not far away are Sandylay and Moat Woods.
A customer’s words
“Office air con broke down in the July heatwave. Called at 8am, engineer was here by noon and fixed within 2 hours. Brilliant emergency response. They now hold the service contract for the whole building.”
James T., Crawley, office manager