Portsmouth · Heat pump installation
Heat pump installation in Cosham, Portsmouth
One call covers MCS certified installation of air source heat pumps for heating and hot water, with the Boiler Upgrade Scheme grant applied for in Cosham: diagnosis, fixed price, work and sign-off. An F-Gas certified company, NICEIC approved, on Checkatrade.
- Wanting to stop using oil, LPG or gas for heating
- Questions about the Boiler Upgrade Scheme
- No space for a hot water cylinder
What we do, step by step
Our engineers bring the tools, gauges and access equipment the job needs. All we ask is clear access to the units, or to where they’ll go, and to the consumer unit. The visit takes a few days for most air-to-water installations, with air-to-air systems often quicker. Because we plan from pictures or a survey, a job in Cosham can normally be finished in one visit.
- First, a chat about the property and your goals for the heating.
- The survey checks heat loss, emitters, hot water and the outdoor unit position.
- You get our view on the right type for the house, and on whether the Boiler Upgrade Scheme applies.
- Installation follows on the agreed dates.
- After commissioning, you get the MCS certificate and a handover.
How to prepare
- Have the make and model of any existing unit to hand
- Give us access to the outside wall, roof or yard where the outdoor unit sits
- Keep pets out of the rooms we’re working in
Ask for a quote
Photos are the fastest route to a quote: the inside and outside of the property where the work is, plus the rating plate of any unit already there. Add the address and what you’d like done, and many jobs can be priced from that.
Advice
How we handle air source heat pumps in Cosham
Installing an air source heat pump in a home is zero-rated for VAT until 31 March 2027, then 5%. That follows HMRC Notice 708/6, and it doesn’t apply to businesses, and 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 homes heated by oil, LPG or gas, and people most often call us about questions about listed buildings or conservation areas and radiators that may be too small for a heat pump.
Homes around Cosham normally have space for an outdoor unit and a hot water cylinder, so the main questions are heat loss, radiators and the electrics.
The records are your system’s health record: what was fitted or found, what was done and when. It makes the next visit quicker and any warranty question simpler and it’s worth keeping safe.
- Location
- Cosham (PO6, PO3, PO2)
- Wider area
- Portsmouth
- Price
- Fixed, in writing
- Costs
- £8,000–£16,000 before the grant, 0% VAT on homes
- Response
- We reply the same working day
- Approvals
- F-Gas certified, NICEIC approved, MCS
- Telephone
- 07833 053749
- Reviewed
- 30 October 2026
Air source heat pumps around Cosham
At about 1 mile from the coast, Cosham is close enough for sea air to matter. Near the coast, we choose the outdoor unit position with salt-laden wind in mind. 2 conservation areas lie within a mile of central Cosham. On the National Heritage List, around 5 entries fall within 0.5 miles of the middle of Cosham; Wymering Manor (grade II*) is one. That affects heat pumps: listed buildings need consent, and conservation areas limit where the outdoor unit can go under permitted development. Where necessary, we check with the planning team at Portsmouth council, which typically handles Cosham. Valuation Office Agency council tax records show about 48% of homes in Cosham and the neighbourhoods around it date from 1919 to 1939. For homes of that age, the survey checks the insulation, the radiators and the hot water setup.
Live in one of the older houses around Church of St Philip? Expect the survey to look closely at heat loss and at the building’s planning status. If you live near Cosham station, the survey compares air-to-water and air-to-air for your home before anything is quoted.
Cosham is about 2 miles south-west of Purbrook, in Portsmouth. If you need air source heat pumps in Cosham, please phone us on 07833 053749 or email us for a fixed-price quote. We work across London and the South East, including Cosham. Our list for Portsmouth has 19 entries and Cosham is among them. Worthing, roughly 29 miles off, has its own page on this site.
The closest recent job we can point to from Cosham was on East Street, Chichester (PO19), about 12 miles east: installing a Daikin wall-mounted unit in the dining area and a second unit serving the kitchen pass area.
From Dean Road, Park Lane and Elgin Road to the smaller roads in between, nowhere is left out. The A397 pass through or close to Cosham, which keeps journeys to surveys and visits simple. Close to Cosham, our area also takes in Wymering (1 mile north-west), Hilsea (1 mile south), Drayton (1 mile east), Widley (1 mile north-east) and Paulsgrove (1 mile west). Further out, we also cover Southsea (4 miles south), Milton (3 miles south), Landport (3 miles south) and Portsea (3 miles south-west).
What’s near Cosham
We fit and service air conditioning in homes and premises around The First Post pub, Alexandra Park and Springfield School and the streets around them. There’s a railway station in Cosham itself: Cosham station. Well-known places in the area include Tricorn Centre (2.9 miles south) and World War I Remembrance Centre (1 mile south-east). Green spaces nearby include Southmoor Nature Reserve and Portsdown Hill.
Different systems, different jobs
The Boiler Upgrade Scheme
Not every home qualifies and we confirm it before anything is agreed.
Radiators and underfloor heating
Underfloor heating suits a heat pump’s lower flow temperature, and we can connect to it where it’s already in.
Towns and villages near Cosham
What else we do in Cosham
Fixed-price quotes for air source heat pumps in Cosham
The quote reflects the job in front of us. We take into account:
- Whether we need access equipment for high-level work
- The size of the job
- The pipe route between the units
The pipe route, the height of the units and how we reach them can all change the price. Each of those is built into the quote, and the price is fixed before any work starts.
What to send for a quote
Photos and a few facts are often enough to price a simple job. Send what you can of the following:
- The address and the type of property
- Where the outdoor unit is, or where you’d like it
- Any error code or flashing light on the display
Quoting starts with a diagnosis, from a site survey or, where the job is straightforward, from pictures and measurements. After that, we send a fixed price before any work starts.
Before you call an engineer
Before you call us about a fault, a few checks can save a visit: check the mode, the set temperature, the remote’s batteries and the breaker. If a breaker trips again after you reset it, leave it off and ring 07833 053749 or send an email.
Don’t move, re-route or disconnect units or pipework yourself. Disconnecting a system means dealing with refrigerant, which only a qualified engineer can do, and the electrics need care too. If you need something moved, we can quote for it.
Cosham: your questions answered
Is Cosham within the area you cover?
Yes, smaller places are covered as well as towns. We are based in East Grinstead and plan each visit so the job can be finished in one trip where possible.
Does the Boiler Upgrade Scheme cover homes in Cosham?
Cosham is in England, where the Boiler Upgrade Scheme runs. Whether your home qualifies, and for how much, depends on the type of heat pump and the heating it replaces. You don’t apply yourself: the MCS certified installer does, which is us.
Can landlords and managing agents book you?
Yes. From a single let flat to offices, shops and public buildings, the approach is the same: a look first, a fixed-price quote and written records.
Do you look at the job first?
Yes. We always look before we price, either on a site survey or from photos and details for simple jobs. A fixed-price quote follows.
What warranty do I get?
It’s the manufacturer’s warranty, which varies by brand. For example, Daikin’s standard warranty on split air conditioning is 2 years, and we explain the terms for whichever brand you choose.
Who is responsible for leak checks?
The F-gas rules share it between the equipment’s operator and the engineers who work on it. How often depends on the size of the refrigerant charge 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’s the difference between air-to-water and air-to-air heat pumps?
Air-to-water feeds your central heating and hot water, while air-to-air warms and cools rooms directly. With air-to-air, hot water needs another source, and we explain which suits your home.
From one of our customers
“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