Greater London · Heat pump installation
Three Mills air source heat pumps
Heat pump installation, in Three Mills and nearby. Ask us for a fixed-price quote, and we will reply the same working day.
- Checking eligibility for a heat pump grant
- Questions about where the outdoor unit can go
- Checking emitters for a heat pump
Why deal with it now?
Getting the sizing wrong causes problems that are hard to fix later. A room-by-room survey gets it right first time. Getting the work done in Three Mills before summer avoids the busiest weeks.
No two properties are the same, so we price each one individually. The equipment, how we reach it, the route between units and the work needed all play a part.
Why choose AirCon Doctor in Three Mills
- Emergency calls taken 24/7
- One contact for properties across the South East and London
- An F-Gas certified company, as the law requires
- Manufacturer’s warranty terms explained on your quote
Air source heat pumps in Three Mills, done properly
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. If you are dealing with checking emitters for a heat pump and moving away from fossil-fuel heating, we can sort it out.
Homes in Three Mills are often flats and terraces, where outside space is limited, which affects which heat pump suits. Air-to-water needs room for the outdoor unit and normally a cylinder, while an air-to-air system needs less space.
Whatever the visit, you get a written record: commissioning details and F-Gas records for a new system, a note of the fault and the fix for a repair, or a service record. File it with the manual, because it helps with any later warranty question.
- Place
- Three Mills (E3, E15, E14)
- Region
- Greater London
- Pricing
- A fixed price before any work starts
- Price guide
- £8,000–£16,000 before the grant, 0% VAT on homes
- Replies
- On the working day you ask
- Certified
- NICEIC approved, F-Gas certified, MCS
- Telephone
- 07833 053749
- Reviewed
- 30 October 2026
Three Mills: your questions answered
Will a heat pump in Three Mills need planning permission?
There’s no single answer: the building and the outdoor unit position decide it. Central Three Mills sits inside the Three Mills Conservation Area. Heat pumps on houses are often permitted development, but listed buildings need consent and conservation areas restrict outdoor units facing a road. Where it’s needed, we check with Tower Hamlets council, which is typically the planning authority for Three Mills.
Do I need permission to put air conditioning in my flat in Three Mills?
In many cases, yes, once the lease and the building’s rules are checked. Permitted development rules for flats are tighter than for houses, so we check the outdoor unit position and give you the details to send to the freeholder or managing agent.
Are my radiators big enough for a heat pump?
It depends on each radiator and the room it heats. Heat pumps run at lower flow temperatures, so radiators give out less heat, and the survey checks each one.
Can you set up regular servicing?
Yes. Send details of the systems and how they’re used, and we will suggest a schedule with a fixed price. Leak checks required by the F-gas rules can be built in for larger systems.
Do you work on systems someone else installed?
Yes. We start with a proper look and tell you honestly what we find, including anything about the original installation that needs putting right. Any work is priced before it goes ahead.
Is there a survey before the work?
Yes. We always look before we price, on a survey, or from your photos and details where the job is simple. Then you get a fixed-price quote.
How soon will you get back to me?
You will hear from us the same working day. If it’s an emergency, ring the 24/7 line instead.
What a heat pump looks like in Three Mills
About 56% of homes in and around Three Mills have been built since 2000, according to the Valuation Office Agency’s council tax figures, and about 90% of households live in flats, according to Census 2021 figures. Newer homes usually lose less heat, which tends to suit a heat pump well. For flats, the first questions are where an outdoor unit could go, whether a cylinder fits and what the lease allows. For a London home, the outdoor unit position and the MCS noise check need careful planning.
Sutton House, roughly 2.4 miles north-west, is a reminder to check your home’s listing status: permitted development does not cover listed buildings. If you live near West Ham station, the survey compares air-to-water and air-to-air for your home before anything is quoted.
Three Mills is about 1 mile south of Stratford, in Greater London. Three Mills gets the same approach as every job we take on: diagnosis first, a fixed price and proper paperwork when we’ve finished. Count every place we list in Greater London and you reach 764, with Three Mills on the list.
Not far from Three Mills, a recent job of ours was on Greenwich High Road, Greenwich (SE10), about 3 miles south: installing a Mitsubishi Electric wall-mounted unit in the retail area and a second unit in the stockroom and office.
Our engineers cover all of the E3, E15 and E14 postcode area and the roads nearby. That includes properties on Gay Road, Bruce Road and Edgar Road and the roads around them. Places around Three Mills that are also on our list: Mill Meads (1 mile north), Bromley (1 mile south-west), Old Ford (1 mile north-west), Bow (1 mile west) and Bow Common (1 mile south-west). Further out, we also cover London (4 miles south-west), City of Westminster (6 miles west), Marylebone (6 miles west) and Kensington (9 miles west).
What’s near Three Mills
Typical jobs here are in properties near Manorfield Primary School, London International School of Performing Arts and Bob's Park and the streets around them. The nearest railway station is West Ham station, about 0.5 miles east of the centre. Well-known places in the area include Stratford Centre (1 mile north) and St Clement's Hospital (0.9 miles west). The countryside around Three Mills includes Hollow Pond and Old Ford Island.
Looking after it afterwards
Looking after the system is mostly common sense. A few tips:
- Check eligibility for the Boiler Upgrade Scheme early
- Read the manufacturer’s warranty terms for your brand
- Keep up with insulation and draught-proofing
In cold, damp weather the outdoor unit runs a defrost cycle from time to time. You might see steam or hear the unit change note, and that’s normal.
Let the heat pump run steadily rather than switching it on and off as explained at handover.
What happens on the day
Each visit runs to the same pattern: check the plan with you, protect the area, do the work, check the system and talk you through it. The visit itself takes a few days for most air-to-water installations, with air-to-air systems often quicker. For a job in Three Mills, tell us about parking, permits and access to the building when you get in touch.
- We talk through your home, your current heating and what you want from a heat pump.
- We survey the home room by room for heat loss, and check the emitters, hot water and outdoor unit position.
- A fixed-price quote follows, setting out the system, any grant that applies and the VAT.
- Installation covers the outdoor unit, the indoor connections and the controls.
- The system is commissioned and registered under MCS, and we show you how to use it.
Preparing for the visit
- Give us access to the outside wall, roof or yard where the outdoor unit sits
- Keep pets and children away from the work area
- Mention any managing agent or landlord rules we need to follow
How to get a quote
To help us quote: where the property is and what kind of building it is, pictures of the rooms or units, the brand and model of anything already fitted and any symptoms, from error codes to drips. Once you have those, call 07833 053749 or email us.
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Before you call an engineer
For air conditioning, cleaning the indoor unit’s filters is the main job owners can do where the manufacturer’s manual explains how. With the power off, they lift out, can be vacuumed or rinsed and must be fully dry before they go back. On a heat pump, the equivalent is keeping the outdoor unit clear and checking the controls.
Write down what you notice: error codes, noises, drips, smells or a drop in performance. It makes our diagnosis quicker, and a photo of the display helps even more.
What a customer said
“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