West Sussex · Heat pump installation
Air Source Heat Pumps in Southwater
Expert air source heat pumps for Southwater: diagnosis first, then a fixed-price quote, the work and written records. Call for a fixed-price quote.
- Not knowing whether a grant applies
- Questions about where the outdoor unit can go
- Planning and permitted development questions
What we do, step by step
Refrigerant work is done by qualified engineers working for an F-Gas certified company, and electrical work is done by us as NICEIC approved contractors. On the day, both are in the same hands. On site, it takes a few days for most air-to-water installations, with air-to-air systems often quicker. Getting to the outside of the property matters more than parking in a place like Southwater.
- Step one is understanding the house, how it’s heated today and what you’d like to change.
- On the visit we calculate what every room loses on a cold day, then check the radiators, room for a cylinder and outdoor unit options.
- A fixed-price quote follows, setting out the system, any grant that applies and the VAT.
- 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.
Getting ready for the visit
- Make sure we can reach the outdoor unit, or where it will go
- Tell us about access, such as roof hatches, high walls or locked plant areas
- Move furniture away from the wall where we’ll be working
Ask for a quote
Every quote shows the VAT clearly, with the rate that applies to your job. VAT can differ between homes and businesses and between kinds of work, so we confirm it on the quote. For a fixed-price quote, call us on 07833 053749.
Related advice
Air source heat pumps for homes and businesses in Southwater
We begin with a room-by-room heat loss survey. It shows how much heat each room needs on a cold day so the system is sized to match. Guesswork leads to systems that are too big or too small. If you’re dealing with no space for a hot water cylinder and checking emitters for a heat pump, we can sort it out.
If your home near Southwater 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.
Any work on the refrigerant circuit is recorded: the work carried out, the refrigerant involved and the quantities. Keep the records with the manual and the warranty documents, ready for the next service or a warranty query.
- Where
- Southwater (RH13)
- Region
- West Sussex
- Quotes
- Fixed after a survey or pictures
- Credentials
- F-Gas certified, NICEIC approved, MCS
- Typical price
- £8,000–£16,000 (0% VAT on homes), before the grant
- Call
- 07833 053749
- Updated
- 30 October 2026
Also near Southwater
What else we do in Southwater
Your questions about air source heat pumps in Southwater
Will a heat pump in Southwater need planning permission?
That depends on the building and where the outdoor unit goes. The half-mile around the middle of Southwater holds about 5 listed buildings and structures. 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 local planning authority (for Southwater, typically Horsham council).
Is Southwater within the area you cover?
Yes. Southwater is within the area we cover across London and the South East. A few photos and the postcode are enough to get things started.
Whose job is it to check the system for leaks?
The operator of the equipment, working with qualified engineers. Systems below 5 tCO2e fall outside the set leak check intervals, while larger ones need checks at least every 12 months, or every 6 months from 50 tCO2e. We’ll work out which band applies to yours.
How much VAT is charged on a heat pump in a home?
For homes, 0% until 31 March 2027, under HMRC Notice 708/6 and 5% after that. For air-to-air systems, we confirm the VAT on your quote.
How much time does a heat pump install need?
Expect it to take a few days on site, depending on the cylinder, the radiators and the pipework involved. How much of the heating changes decides most of the time and the timing is set out with your quote.
Which manufacturers do you install and repair?
The main ones, including Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. For new systems, we recommend a brand and model to suit the job and tell you why.
What accreditations do you have?
We’re an F-Gas certified company, with NICEIC approval for electrical work and MCS certification for heat pumps. We are members of Checkatrade too.
When something else is needed
Air source heat pumps can’t fix everything, and we’ll tell you before any work starts. It doesn’t solve:
- Insulation work, such as loft or cavity wall insulation
- Gas boiler work, such as disconnecting the old boiler, which needs a Gas Safe registered engineer
- Promising eligibility for the Boiler Upgrade Scheme
Not sure which it is? You can call us on 07833 053749, or email if that’s easier and we will tell you honestly before you book.
What we work on in Southwater
- Air-to-water heat pumps
- Underfloor heating
- Air-to-air heat pumps
- Homes heated by oil, LPG or gas
- Hot water cylinders
- Radiator systems
Air source heat pumps around Southwater
The last census (2021) found about 68% of households in detached or semi-detached houses. Finding room for the outdoor unit and a cylinder is seldom a problem in homes like these.
A heat loss calculation decides the size of heat pump your home needs. Live in one of the older houses around Holy Innocents Church? Expect the survey to look closely at heat loss and at the building’s planning status.
Southwater is about 3 miles south of Horsham, in West Sussex. Anywhere in RH13, we can help with air source heat pumps. Across West Sussex, we cover 371 places, Southwater among them.
Not far from Southwater, a recent job of ours was on Hurst Road, Horsham (RH12), about 3 miles north: installing two LG wall-mounted split systems: one serving the main treatment room and one serving the reception and waiting area.
All of RH13 is covered, from busy streets to back roads. Whether you’re on Station Road, Walmer Close and Pevensey Road or a nearby road, our engineers can take on the work. Places around Southwater that are also on our list: Tower Hill (2 miles north), Nuthurst (2 miles east), Brooks Green (2 miles west), Barns Green (2 miles west) and Maplehurst (2 miles south-east). Further out, we also cover Crawley (9 miles north-east), Horsham (3 miles north), Worthing (14 miles south) and Haywards Heath (11 miles east).
What’s near Southwater
Locally, jobs take us to houses, flats and workplaces close to The Lintot pub and The Doyle School of Design and Technology. The closest station to Southwater is Christs Hospital station, about 1.9 miles north-west. Nearby you’ll also find Christs Hospital School Museum (1.5 miles north-west) and Horsham Hospital (3.2 miles north). For a walk, there’s Knepp Wildland.
For landlords and property managers
Facilities teams in offices, schools and public buildings book us too in Southwater and across West Sussex. Work can be phased by floor, zone or building around the people who use them.
When the building owner and the occupier are different, the lease or tenancy agreement normally sets out who maintains what. We can quote either party and send the records to whoever needs them.
Leave it or put it right?
Replacing a boiler in a hurry when it breaks leaves little time to consider a heat pump. Planning ahead gives time for the heat loss survey, the design and the grant application before you need the heat. Planning ahead for a job near Southwater means we can arrive with everything needed.
The cost depends on the system and the number of rooms or units, how easy the units are to reach and the parts and time the job needs. You get a fixed price before work begins, so there are no surprises.
Why book with us
- We diagnose before we treat
- Checkatrade member
- Covering London and the South East
- Leading brands including Daikin, Mitsubishi Electric and Fujitsu
See our cost guide and how to check a contractor.
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