East Sussex · Heat pump installation
Heat pump installers in Isfield
MCS certified installation of air source heat pumps for heating and hot water, with the boiler upgrade scheme grant applied for, for Isfield and the surrounding area. Ask us for a fixed-price quote; we reply the same working day.
- Comparing heat pump types
- Not knowing whether a grant applies
- Wanting to stop using oil, LPG or gas for heating
Isfield: your questions answered
Does the Boiler Upgrade Scheme cover homes in Isfield?
Yes, the scheme covers homes in England, including Isfield, if they qualify. Air-to-water and ground source systems attract £7,500. Air-to-air gets £2,500, but only where it takes over from fossil-fuel heating and covers the whole home’s heating demand. The installer applies, and we are MCS certified.
Will a heat pump in Isfield need planning permission?
That depends on the building and where the outdoor unit goes. Around 11 listed entries sit within 0.5 miles of central Isfield. 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 the planning department at Wealden council, normally the authority for Isfield.
Can landlords and managing agents book you?
Yes. Homeowners, landlords, agents and businesses all book us across London and the South East. Let us know who the records should go to.
Which manufacturers do you install and repair?
We install and work on the leading makes, from Mitsubishi Electric, Daikin and Fujitsu to Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. Tell us the make and model and we will take it from there.
What does an air-to-water heat pump cost?
Air-to-water work is in the £8,000–£16,000 range (0% VAT on homes), with any grant still to come off. Where you land depends on the size of heat pump, any radiators that need changing and the hot water cylinder. Air-to-air is priced after a survey.
Does servicing affect my warranty?
It can, for some brands. Send us the make and model and we will tell you what the manufacturer expects and stick to the interval they set.
How does the warranty work?
The manufacturer’s warranty, on the manufacturer’s terms. Terms differ by brand, and we set them out on your quote.
Air source heat pumps in Isfield
Many air source heat pumps can be installed as permitted development in England, without a planning application. Conditions include a maximum outdoor unit size of 1.5 m³, compliance with MCS 020(a), use for more than cooling alone and a site outside the curtilage of a listed building. We check the rules for your property as part of the survey. If you are dealing with checking eligibility for a heat pump grant and questions about listed buildings or conservation areas, we can sort it out.
Space for an outdoor unit is rarely an issue near Isfield, so the design comes down to heat loss, radiators and hot water.
AirCon Doctor is an F-Gas certified company and NICEIC approved for electrical work, with MCS certification for heat pumps and Checkatrade membership. Our engineers hold the F-gas qualifications needed to work on refrigerant.
- Where
- Isfield (TN22)
- Wider area
- East Sussex
- Prices
- £8,000–£16,000 before the grant, 0% VAT on homes
- Response
- Answered the same working day
- Pricing
- Fixed after a survey or photos
- Accreditations
- NICEIC approved, F-Gas certified, MCS
- Telephone
- 07833 053749
- Updated
- 30 October 2026
Homes in Isfield and heat pumps
About 65% of households live in detached or semi-detached houses, according to the last census (2021). Detached and semi-detached houses typically have room for the outdoor unit and a cylinder.
If your home is listed, like Glyndebourne about 4.1 miles south, listed building consent comes before any heat pump work.
Isfield is about 3 miles south-west of Uckfield, in East Sussex. From the centre of Isfield to the outskirts, we cover air source heat pumps, from small jobs to large ones. Count every place we list in East Sussex and you reach 289, with Isfield on the list. For properties nearby, see our Burgess Hill page, about 8 miles away.
The closest recent job we can point to from Isfield was on High Street, Uckfield (TN22), about 3 miles north-east: installing a Samsung multi-split system serving three bedrooms and the home office.
Whether you’re on Station Road, Lavender Fields and Horsted Lane or a nearby road, we can help. Jobs in TN22 are looked at, quoted and booked the same way as anywhere else. Close to Isfield, our area also takes in Rose Hill (1 mile south-east), Little Horsted (1 mile north-east), Mount Pleasant (2 miles west), Barcombe Mills (2 miles south-west) and Barcombe Cross (2 miles south-west). Larger places within reach include Eastbourne (14 miles south-east), Seaford (11 miles south), Lewes (5 miles south-west) and Hailsham (10 miles south-east).
What’s near Isfield
Around Isfield, our work takes us to homes and businesses near The Laughing Fish pub, among other places. For rail, the closest station is Uckfield station, roughly 2.7 miles north-east of the centre. Other landmarks nearby include Tickerage Castle (4.4 miles north-east) and Museum of Agricultural Bygones (3.1 miles south-east). The countryside around Isfield includes Cliffe Hill and Malling Down.
What happens on the day
Each visit runs to the same pattern: agree the plan on site, protect the area, do the work, test what we have done and talk you through it. The visit itself takes from a couple of days to around a week, depending on the system and how much of the heating changes. Pictures of the space and where the outdoor unit could go let us plan the work in Isfield.
- First we find out about the property, the heating you have now and what you’re hoping for.
- A heat loss survey works out how much heat each room needs, and we look at the radiators, the cylinder space and where the outdoor unit could go.
- You get a fixed-price quote, with any grant you’re eligible for and the VAT explained.
- We fit the outdoor unit and connect it to the heating, hot water and controls.
- Commissioning, MCS certification and a handover of the controls finish the job.
How to prepare
- Let us know where we can park and unload
- Let us know if the units are on a roof, a high wall or in a locked area
- Clear a path to the units and the space around them
Getting a quote
The quickest way to a quote is to send pictures: the room or the existing unit, the outside wall or roof where the outdoor unit sits or would go, and the label on any existing unit. Add the address and what you’d like done, and simple jobs can often be priced without a visit.
Read more
Towns and villages near Isfield
Other services in Isfield
Aftercare tips
Systems last better with the right care. Here’s what we suggest:
- Ask about the grant before you commit
- Keep the outdoor unit clear all year
- Look at insulation alongside the heat pump
Handover includes the controls and how to get the best from a heat pump. Steady running suits a heat pump better than switching on and off so we set the controls up with you.
Leave space around the outdoor unit. It needs good airflow to collect heat from outside so keep it unobstructed.
Do you need air source heat pumps in Isfield?
Some homes heated by electric heaters or storage heaters consider a heat pump instead. The survey tells you whether it’s practical and what’s involved along with whether any grant could apply.
These are the situations we see most often:
- Working out where a cylinder could go
- Choosing between air-to-water and air-to-air
- An oil, LPG or gas boiler near the end of its life
Period properties close to The Parish Church of St Margaret can suit a heat pump, though insulation and any heritage protection are checked first.
Questions to ask before booking
- How extra work would be agreed if they find something unexpected
- Whether the quote shows VAT clearly
- Whether the manufacturer’s warranty depends on regular servicing
What affects the cost of air source heat pumps
The diagnosis comes before the price. We look at:
- What we find on the survey or diagnosis
- How many units are involved
- What kind of system it is
One room or a whole building, the quote is built the same way: what needs doing, how we get to it and what it needs. The price is fixed before we start, with VAT shown clearly.
Helping us quote
You do not need the technical terms. It helps if you can send:
- The paperwork from the last service, if you have it
- Any error code or flashing light on the display
- The outdoor side of the property, including any roof or flat area
Published ranges are a starting point; the quote is built on your property, because no two buildings, rooms or systems are the same. Once we’ve looked at the job, from pictures or on a survey, you get a fixed price. To get going, give us a ring on 07833 053749 or use the quote form.
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