West Sussex · Heat pump installation
Heat pump installation in Highleigh, West Sussex
Expert air source heat pumps for Highleigh: diagnosis first, then a fixed-price quote, the work and written records. Call for a fixed-price quote.
- Radiators that may be too small for a heat pump
- Ageing boilers that will need replacing
- Checking eligibility for a heat pump grant
Rented and managed buildings
If you look after several properties, we can plan visits across the portfolio and price them together. Every address has its own paperwork, so each one has its own history.
Bigger systems bring extra duties: a TM44 inspection by an accredited energy assessor is required at least every 5 years for systems over 12 kW. We arrange the inspection, get the system ready and put right anything it picks up.
How we handle air source heat pumps in Highleigh
Every installation starts with a heat loss survey. That tells us how much heat the home needs, room by room, so the heat pump and the radiators or indoor units can be sized properly. Guesswork leads to systems that are too big or too small. If the problem is replacing a combi boiler with a heat pump and working out whether radiators need upsizing, we can sort it out.
Homes around Highleigh usually have room outside for a heat pump, so the design comes down to heat loss, radiators and hot water.
Looking after a system is mostly common sense: keep the outdoor unit clear, follow the manufacturer’s guidance on cleaning and book a service at the interval they recommend. It also keeps you on the right side of any warranty terms that ask for servicing.
- Location
- Highleigh (PO20)
- Region
- West Sussex
- Pricing
- Fixed after a survey or photos
- Approvals
- NICEIC and F-Gas, MCS
- Price guide
- £8,000–£16,000 (0% VAT on homes), before the grant
- Replies
- Same working day
- Telephone
- 07833 053749
- Reviewed
- 30 October 2026
Towns and villages near Highleigh
More services for Highleigh
Different systems, different jobs
Radiators and underfloor heating
Heat pumps run at lower flow temperatures, so radiators may need to be larger so we check them against each room’s heat loss.
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 also has to be fitted by an MCS certified installer, in a home.
Why deal with it now?
From 1 April 2027, VAT on heat pumps in homes rises from 0% to 5%. If you’re thinking about a heat pump, that date is worth knowing alongside your own plans for the property. Small faults tend to grow, so it’s worth dealing with them early.
Putting the work off seldom saves money. Small problems, from blocked filters to slow leaks, tend to get worse, and a struggling system uses more electricity to do less. If you’re not sure what’s needed, call 07833 053749, or email if that’s easier for straight advice and a fixed price.
Why us?
- A 24/7 emergency line
- MCS certification for heat pump work
- Electrical work covered by our NICEIC approval
- Clear warranty information from the manufacturer
See how installs are priced or our accreditations and certificates.
What we do, step by step
The first job on site is protection: dust sheets over floors and furniture near the work and nothing is moved without asking you. After that, anything electrical is made safe and we start. The work on site takes several days for an air-to-water system with a new cylinder, less for an air-to-air system, and we clear up before we go. We agree a date with you and plan the visit to Highleigh so we arrive with what’s needed.
- It starts with a conversation about the home, the existing heating and your plans.
- 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.
- The price comes back fixed and in writing, with the grant and VAT shown line by line.
- Fitting day: the outdoor unit is placed, the indoor side connected and the controls set up.
- The system is commissioned and registered under MCS, and we show you how to use it.
Getting ready for the visit
- Mention any roof access, ladders or high-level work
- Tell us about parking and loading
- Make sure we can reach the outdoor unit, or where it will go
Getting a price
Photos are the fastest route to a quote: 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.
Advice
Homes in Highleigh and heat pumps
Highleigh is within about 2 miles of the coast. Salt air is hard on outdoor units, so a heat pump near the sea needs a sensible position and regular checks, and some models offer corrosion protection for coastal sites. About 77% of households live in detached or semi-detached houses, according to Census 2021 figures. Detached and semi-detached houses normally have room for the outdoor unit and a cylinder.
Older homes near St Mary Our Lady Sidlesham may need extra checks for planning and heat loss before a heat pump is designed. Sizing comes from the heat each room loses on a cold day, not from the size of the old boiler.
Highleigh is about 3 miles north of Selsey, in West Sussex. Across the PO20 area, we cover air source heat pumps. We cover 371 places across West Sussex, from busy centres to quieter spots. Worthing is in our area too, around 18 miles away.
Not far from Highleigh, a recent job of ours was on East Street, Chichester (PO19), about 4 miles north: installing a Daikin wall-mounted unit in the dining area and a second unit serving the kitchen pass area.
If your postcode is in PO20, we can take the job on. We cover homes and businesses on Critchel's Lane, Highleigh Road and Green Lane and the roads around them. Close by, we work in Almodington (1 mile west), Birdham (2 miles north-west), Somerley (2 miles west), Earnley (2 miles west) and Shipton Green (3 miles north-west). Within a short drive, we also cover Bognor Regis (5 miles east), Chichester (4 miles north), Selsey (3 miles south) and Littlehampton (12 miles east).
Around Highleigh
The closest station to Highleigh is Chichester station, roughly 3.9 miles north of the centre. Other landmarks nearby include Chichester Castle (4.5 miles north) and Selsey Lifeboat Museum (3.5 miles south). Not far away are Pilsey Island.
Common questions in Highleigh
Is the coast a problem for outdoor units in Highleigh?
It can, as Highleigh is within about 2 miles of the sea, where salt in the air is hard on coils and fixings. The outdoor unit position, its fixings and regular servicing all help near the sea.
Do I need planning permission for a heat pump in Highleigh?
It depends on the property. Around 11 listed entries sit within 0.5 miles of central Highleigh. 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 Chichester council, typically the authority for Highleigh.
Do I need new radiators for a heat pump?
That depends on the room’s heat loss and the radiator’s size. The survey compares each radiator with the room’s needs, so the quote covers any changes.
What’s the difference between air-to-water and air-to-air heat pumps?
Air-to-water replaces the boiler for heating and hot water, while air-to-air heats and cools rooms. The survey helps decide. Both are part of what we install.
How much does an air source heat pump cost?
Air-to-water systems are £8,000–£16,000 (0% VAT on homes), before any grant. Your price depends on the survey, the emitters and the hot water, and you get a fixed-price quote.
Who has to arrange F-Gas leak checks?
Responsibility is shared between the operator, typically whoever owns or controls the equipment, and the service technicians. The interval depends on the refrigerant charge, measured in tonnes of CO2 equivalent: at least yearly for 5 to under 50 tCO2e, and every 6 months for 50 to under 500 tCO2e.
What VAT do I pay on a heat pump?
Homes pay 0% VAT on a heat pump installation until 31 March 2027, then 5%. Hotels and businesses pay the standard rate. Please treat this as general information, not tax advice.
What a customer said
“Excellent service from start to finish. Two wall-mounted units installed in our home. Clean, tidy work: they protected all the floors and left no mess. The systems work brilliantly. Would highly recommend.”
Sarah M., East Grinstead