Essex · Heat pump installation
Theydon Bois air source heat pumps
Need air source heat pumps in Theydon Bois? We diagnose first, fix the price and book the work around you, finishing with proper records.
- Questions about listed buildings or conservation areas
- Deciding on the outdoor unit position
- Working out where a cylinder could go
How we handle air source heat pumps in Theydon Bois
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. Common call-outs are for finding a place for the outdoor unit and checking emitters for a heat pump, on hot water cylinders, air-to-air heat pumps and underfloor heating.
If your home near Theydon Bois has no mains gas, the grant can be bigger. Until March 2027, homes on oil or LPG without mains gas can get an extra £1,500 through the Boiler Upgrade Scheme, for an air source or ground source heat pump.
Each manufacturer sets its own warranty period. Daikin, for example, gives a standard 2 years on split air conditioning, with longer extensions only on its air-to-water heat pumps. For any other brand, we explain the manufacturer’s terms on your quote.
- Place
- Theydon Bois (CM16)
- Region
- Essex
- Price
- Fixed after a survey or photos
- Guide price
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Certified
- NICEIC and F-Gas, MCS
- Telephone
- 07833 053749
- Reviewed
- 30 October 2026
How the visit works
Every visit follows the same order: check the plan with you, put the dust sheets down, carry out the job, test what we have done and explain it all to you. On site, the work takes from a couple of days to around a week, depending on the system and how much of the heating changes. A few photos let us plan a visit to a place like Theydon Bois.
- You tell us about the home and what you want from a heat pump.
- A survey covers heat loss, radiators, hot water and where the outdoor unit could sit.
- We explain which type of heat pump suits the home and whether a grant could apply.
- Installation follows on the agreed dates.
- The job ends with commissioning, the MCS certificate and a walk through the controls.
Preparing for the visit
- Mention any managing agent or landlord rules we need to follow
- Let us know where the consumer unit is
- Plan for pets to be kept clear during the visit
Getting a quote
Here’s what helps us quote: where the property is and what kind of building it is, photos of the rooms or units, the make and model of any existing system and anything you’ve noticed, such as an error code or a noise. Then phone 07833 053749 or send an email.
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System by system
Heat loss surveys
The survey covers the building fabric and how air moves through it, and the size of each room.
Air-to-air heat pumps
The £2,500 grant for air-to-air applies only when the system replaces the fossil-fuel heating and covers the whole home’s demand. It must be installed by an MCS certified installer and be in a home.
What a heat pump looks like in Theydon Bois
About 77% of households live in detached or semi-detached houses, according to the last census (2021). Houses usually have space for an outdoor unit and a hot water cylinder.
Older homes near Parish Church of St Mary may need extra checks for planning and heat loss before a heat pump is designed. Historic houses such as Hill Hall, about 2.3 miles east, are a reminder that listed homes need consent before a heat pump goes in.
Theydon Bois is about 2 miles north-east of Loughton, in Essex. Anywhere in CM16, we cover air source heat pumps. Our area takes in 644 places across Essex. You can also see our page for London, roughly 15 miles from Theydon Bois.
Our nearest recent job to Theydon Bois was on Greenwich High Road, Greenwich (SE10), about 14 miles south: installing a Mitsubishi Electric wall-mounted unit in the retail area and a second unit in the stockroom and office.
That includes properties on Buxton Road, Orchard Drive and Elizabeth Drive and nearby roads. We cover every part of the CM16 postcode area. Neighbouring places we cover include Debden Green (1 mile south-west), Debden (2 miles south), Loughton (2 miles south-west), Upshire (3 miles north-west) and High Beech (3 miles west). Within a short drive, we also cover Harlow (7 miles north), Brentwood (9 miles east), Billericay (14 miles east) and Harold Wood (8 miles south-east).
Near you in Theydon Bois
In Theydon Bois, that means homes and buildings near Queen Victoria Public House and Davenant Foundation School. The closest station to Theydon Bois is Chingford station, roughly 4.7 miles south-west. Other landmarks nearby include St. Margaret's Hospital (2.5 miles north-east) and Epping Signalling Museum (1.6 miles north-east). Not far away are Lippitts Hill and Home Mead.
Keeping the system healthy
Simple habits make a real difference. We recommend:
- Keep the MCS certificate with the manufacturer’s paperwork
- Find out the grant position at the survey
- Leave indoor units unobstructed
We show you how to use the controls and explain how a heat pump works differently from a boiler. Heat pumps tend to work best running steadily rather than in short bursts so we set the controls up with you.
Let the heat pump run steadily rather than switching it on and off, using the settings agreed at handover.
Your questions about air source heat pumps in Theydon Bois
Do I need planning permission for a heat pump in Theydon Bois?
The answer turns on the property and where the outdoor unit would sit. Around 11 listed entries sit within 0.5 miles of central Theydon Bois. 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 do not 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 Epping Forest council, which is usually the planning authority for Theydon Bois.
Do you cover smaller places like Theydon Bois?
Yes. Theydon Bois is within the area we cover across London and the South East. We’re based in East Grinstead and plan each visit so the job can be finished in one trip where possible.
How quickly will you reply?
You’ll hear from us the same working day. For a breakdown that cannot wait, call our 24/7 emergency line.
Can I fit air conditioning or a heat pump myself?
Anything that involves the refrigerant needs an F-Gas qualified engineer from a certified company. That’s the law, not just our preference, and it also matters for the manufacturer’s warranty. We’re happy to quote for the full job, supply to commissioning.
Do you provide F-Gas records?
Yes, always. New installations come with commissioning details, F-Gas records and warranty information, and repairs and services get a record of the work.
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. Where you land depends on the size of heat pump, any radiators that need changing and the hot water cylinder, and air-to-air systems are priced after a survey.
Should I choose air-to-water or air-to-air?
Air-to-water feeds your central heating and hot water, while air-to-air warms and cools rooms directly. With air-to-air, hot water needs another source and the survey helps decide.
What you can do yourself, and what needs us
Before you call us about a fault, a few checks can save a visit: check the mode, the set temperature, the remote’s batteries and the breaker. If a breaker trips again after you reset it, leave it off and ring us on 07833 053749 or fill in the contact form.
Keep a note of anything odd: error codes, noises, drips, smells or a drop in performance. It makes our diagnosis quicker, and a photo of the display helps even more.
Places near Theydon Bois
What else we do in Theydon Bois
From one of our customers
“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