Southampton · Heat pump installation
Heat pump installation in Thornhill, Southampton
For MCS certified installation of air source heat pumps for heating and hot water, with the Boiler Upgrade Scheme grant applied for in Thornhill, choose an F-Gas certified, NICEIC approved company. Fixed-price quotes and a 24/7 emergency line.
- Moving away from fossil-fuel heating
- Deciding which kind of heat pump suits the home
- Questions about listed buildings or conservation areas
Homes in Thornhill and heat pumps
Thornhill lies within about 3 miles of the sea. Near the coast, we choose the outdoor unit position with salt-laden wind in mind. VOA council tax data date about 60% of homes in the Thornhill area to the post-war years, 1945 to 1972. For homes of that age, the survey checks the insulation, the radiators and the hot water setup.
South Stoneham 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 your home is one of the older properties near St Christopher, the survey checks whether it’s listed or in a conservation area before the outdoor unit position is chosen.
Thornhill is about 2 miles east of Southampton, in Southampton. Homes and businesses alike in Thornhill, we can help with air source heat pumps. We reply to enquiries the same working day and our emergency line runs 24/7. Thornhill is one of 40 places in Southampton where we work for homes and businesses. We also work in Worthing, about 41 miles from Thornhill.
Work in SO19, SO18 and SO30 follows the same survey, fixed-price quote and written records as everywhere else we cover. Streets in the area include Drove Road, Barry Road and Luton Road, all of which are in our area. Close to Thornhill, our area also takes in Harefield (1 mile north), Sholing (1 mile south-west), Bitterne (1 mile west), West End (1 mile north) and Chartwell Green (1 mile north). Within a short drive, we also cover Shirley (4 miles west), Regents Park (4 miles west), Maybush (5 miles west) and Portswood (3 miles north-west).
Near you in Thornhill
Typical jobs here are in properties near Westwood Woodland Park, Woodlands Community College and Grove Park Business and Enterprise College and the streets around them. The nearest railway station is Sholing station, about 1.4 miles south-west of the centre. Nearby you will also find Moorgreen Hospital (1.4 miles north-east) and Bitterne Local History Society Heritage And Research Centre (1.1 miles west). Green spaces nearby include Netley Common.
Air source heat pumps for homes and businesses in Thornhill
Until 31 March 2027, a heat pump installed in residential accommodation carries 0% VAT, with 5% from 1 April 2027. This is HMRC’s energy-saving materials relief, which applies to homes rather than businesses, and for air-to-air systems we confirm the VAT on your quote. This is general information, not tax advice. If you’re dealing with checking eligibility for a heat pump grant and a boiler that’s getting old, we can help.
Whether a home near Thornhill has mains gas makes a difference to the grant. Until March 2027, homes on oil or LPG without mains gas can get an extra £1,500 through the Boiler Upgrade Scheme.
Think of the paperwork as the system’s health record: a dated account of the work and the readings we took. It makes the next visit quicker and any warranty question simpler, so keep it safe.
- Where
- Thornhill (SO19, SO18, SO30)
- Region
- Southampton
- Typical price
- £8,000–£16,000 (0% VAT on homes), before the grant
- Accreditations
- F-Gas certified, NICEIC approved, MCS
- Quotes
- Fixed-price quote after a site survey
- Telephone
- 07833 053749
- Page updated
- 30 October 2026
Nearby places to Thornhill
What else we do in Thornhill
Thornhill: your questions answered
Does being near the sea make a difference to air source heat pumps in Thornhill?
It can, as Thornhill is within about 3 miles of the sea, where salt in the air is hard on coils and fixings. We site outdoor units out of the worst of the sea wind where possible and can suggest models with corrosion protection where the manufacturer offers it.
Is the heat pump grant available in Thornhill?
Thornhill is covered, as the scheme runs across England and Wales. The grant is £7,500 for an air source (air-to-water) heat pump and £2,500 for an air-to-air system that replaces the existing fossil-fuel heating. As an MCS certified installer, we apply for it on your behalf.
Who is responsible for leak checks?
Whoever operates the equipment, together with the technicians who service it. Larger systems need regular checks: at least every 12 months from 5 tCO2e and every 6 months from 50 tCO2e. We can tell you which band your system falls into.
Is a heat pump permitted development?
Many installations on houses in England fall under permitted development, subject to the rules. Listed buildings are excluded, and listed building consent is separate, so we check for your property.
Is the equipment covered by a warranty?
It’s the manufacturer’s warranty, which varies by brand. Daikin, for instance, gives a standard 2 years on split air conditioning, and we explain the terms for whichever brand you choose.
What accreditations do you have?
We hold F-Gas company certification, which the law requires for any business working on refrigerant. NICEIC approval, MCS certification for heat pumps and Checkatrade membership sit alongside it.
What’s the price of a heat pump installation?
Expect £8,000–£16,000 for an air-to-water system, with 0% VAT on homes, before the grant is taken 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.
Leave it or put it right?
Choosing between air-to-water and air-to-air is easier with the facts. Air-to-water works with radiators and a cylinder, with a £7,500 grant for eligible homes, while air-to-air heats and cools rooms and has a £2,500 grant only in limited cases. We explain which makes sense for you. Waiting rarely makes an air conditioning problem smaller.
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 work begins, and the quote sets out the VAT.
Why book with us
- An F-Gas certified company, as the law requires
- MCS certified heat pump installers
- We diagnose before we treat
- A reply the same working day
System by system
The Boiler Upgrade Scheme
There’s one grant per property, and you can’t get a grant to replace a low-carbon system. Hybrids are excluded.
Air-to-water heat pumps
Air-to-water systems work at lower temperatures than boilers, which is why radiator sizing is part of the survey.
The process
We book the visit for a day and time that suit you, and we let you know if plans need to move. On arrival, the engineer compares the job with the survey, your photos or the details you gave us. Anything unexpected is raised with you before we go further. From there, the work takes a few days on site, depending on the cylinder, the radiators and the pipework involved. Photos of the room and the outside wall help us plan a job near Thornhill.
- We talk through your home, your current heating and what you want from a heat pump.
- The survey measures heat loss room by room and looks at radiators, hot water and the best spot for the outdoor unit.
- The price comes back fixed and in writing, with the grant and VAT shown line by line.
- The outdoor unit, the indoor equipment and the controls are installed and connected.
- Once it’s running correctly, the MCS certificate is issued and we show you the settings.
Getting ready for the visit
- Have the make and model of any existing unit to hand
- Mention any roof access, ladders or high-level work
- Let us know where we can park and unload
Get a fixed-price quote
The quickest way to a quote is to send photos: the inside and outside of the property where the work is, plus the rating plate of any unit already there. Tell us the address and what you need, and many jobs can be priced from that.
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Landlords, agents and facilities managers
Facilities teams in offices, schools and public buildings book us too in Thornhill and across Southampton. Work can be phased by floor, zone or building to keep disruption down.
Under the GB F-gas rules, responsibility for leak checks is shared between whoever operates the equipment and the engineers who work on it. Where a building is let or managed, the lease or contract should make clear who looks after the system and we’re happy to deal with whoever it is.
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