London and the South East

Air Source Heat Pumps in West Sussex

Covering 371 places across West Sussex for air source heat pumps, quoted at a fixed price after a site survey, by F-Gas certified engineers.

Book air source heat pumps in West Sussex

How air source heat pumps works in West Sussex

Installing an air source heat pump in a home is zero-rated for VAT until 31 March 2027, then 5%. This is HMRC’s energy-saving materials relief, which applies to homes rather than businesses. For air-to-air systems, we confirm the VAT on your quote. This is general information, not tax advice. The work covers air-to-water heat pumps, radiator systems and underfloor heating, and common reasons people get in touch are plans to switch to electric heating with a heat pump and questions about listed buildings or conservation areas.

Think of the visit in three stages: look, put right and sign off. First comes a careful look at the system or the space, then we do the work, and finally everything is tested, recorded and explained. The middle part takes longest, and that takes several days for an air-to-water system with a new cylinder, less for an air-to-air system.

  1. You tell us about the home and what you want from a heat pump.
  2. A survey covers heat loss, radiators, hot water and where the outdoor unit could sit.
  3. We recommend air-to-water or air-to-air and check the grant position.
  4. Installation follows on the agreed dates.
  5. After commissioning, you get the MCS certificate and a handover.

What you’ll pay

A single unit or a whole estate, we price it on the same basis: the work involved, the access and the equipment. The price is fixed before we start, and the quote sets out the VAT.

Why choose AirCon Doctor

  • One number for homes and businesses across London and the South East
  • F-Gas certified company
  • Members of Checkatrade
  • Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba and more

Ask for a quote

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 have looked at the job, from photos or on a survey, you get a fixed price. To get going, call us on 07833 053749.

Local landmarks in Crawley

Typical jobs here are in properties near Friary Church of St Francis and St Anthony, St Wilfrid's Catholic School and Tilgate Park and the streets around them. Other local landmarks include The George Hotel (within half a mile north), Three Bridges Junior School (within half a mile south-east) and St Francis of Assisi Catholic Primary School (less than half a mile south-east). There’s a railway station in Crawley itself: Crawley station. A little further out are Crawley Hospital (0.5 miles north-west) and County Mall (under half a mile north-east). Not far away are Tilgate Lake.

Air source heat pumps across West Sussex: local notes

Until March 2027, off-gas homes in West Sussex heated by oil or LPG can get an extra £1,500 towards an air source or ground source heat pump.

An F-Gas certified company does the refrigerant side, while NICEIC approval covers the electrical work. In the coastal parts of West Sussex, outdoor units benefit from a sheltered position and regular servicing, and some manufacturers offer corrosion-protected coils.

Crawley: If you live near Crawley station, the survey compares air-to-water and air-to-air for your home before anything is quoted. Live in one of the older houses around Friary Church of St Francis and St Anthony? Expect the survey to look closely at heat loss and at the building’s planning status.

What air source heat pumps can’t fix

An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:

  • A grant for a home that doesn’t meet the scheme rules
  • Improving the building’s insulation
  • Tax advice on your own circumstances

Signs you need air source heat pumps

Extensions, renovations and loft conversions are a natural time to rethink the heating. It’s simpler to plan radiators, pipework and a cylinder while the builders are in.

Reasons to give us a call include:

  • Checking emitters for a heat pump
  • A boiler that is getting old
  • Comparing heat pump types
  • Deciding on the outdoor unit position

Let and managed properties

For anyone managing more than one building, we can quote and plan the work across all of them. Every address has its own paperwork, so the files stay tidy.

Facilities teams in offices, schools and public buildings book us too across West Sussex. Work can be phased by floor, zone or building to keep disruption down.

After we have gone

How well a system lasts depends on use and care. We suggest:

  • Keep radiators clear
  • Find out the grant position at the survey
  • Know the servicing conditions in your warranty
  • Store the MCS certificate and warranty documents together

Now and then in cold weather, the outdoor unit defrosts itself. It may give off steam or sound different for a few minutes and it’s part of how the system works.

Book a service every year. Check the manufacturer’s terms, as they may include servicing conditions.

FAQs for West Sussex

Will I get records for the system?

Yes, always. New installations come with commissioning details, F-Gas records and warranty information, and repairs and services get a record of the work.

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.

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. You get a fixed price before any work goes ahead.

How much does an air source heat pump cost?

An air-to-water heat pump costs £8,000–£16,000 (0% VAT on homes) before the grant. The Boiler Upgrade Scheme offers £7,500 to eligible homes in England and Wales though not every home qualifies.

Why does F-Gas certification matter?

For refrigerant work, both the engineer and the company need the right F-gas credentials. It’s worth checking before booking, and we are happy to show ours.

Do you survey before quoting?

Yes, every time. We diagnose before we treat: the survey tells us what the job needs and how to do it, and the quote is based on that.

Is West Sussex in your area?

Yes. West Sussex is part of the area we cover, as part of our area across London and the South East. Our base is in East Grinstead, West Sussex.

A to Z of places in West Sussex

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

R

S

T

U

W

Y

F-Gas certified companyRefrigerant work done and recorded properly
NICEIC approvedElectrical work certified
MCS certifiedHeat pump installations
Checkatrade memberVetted trade directory
24/7 emergency lineBased in East Grinstead