Hampshire · Heat pump installation
Heat pump installation in Knapp, Hampshire
Expert air source heat pumps for Knapp: a survey or diagnosis, a fixed price, careful work and proper paperwork. Ask us for a fixed-price quote.
- Deciding on the outdoor unit position
- A boiler that is getting old
- Choosing between air-to-water and air-to-air
Air source heat pumps for homes and businesses in Knapp
An air-to-water heat pump heats water to a lower temperature than a typical boiler which means some radiators may need upsizing. We check each radiator against the room’s heat loss and anything that needs changing is in the quote. If you’re dealing with planning and permitted development questions and an oil, LPG or gas boiler near the end of its life, we can sort it out.
Homes around Knapp usually have room outside for a heat pump, so the design comes down to heat loss, radiators and hot water.
Some manufacturers make regular servicing by a qualified engineer a condition of their warranty. If that applies to your system, booking the service on time keeps the record straight, and every service is written up.
- Location
- Knapp (SO51)
- Region
- Hampshire
- Quotes
- A fixed-price quote up front
- Certified
- NICEIC approved, F-Gas certified, MCS
- Guide price
- £8,000–£16,000 before the grant, 0% VAT on homes
- Phone
- 07833 053749
- Checked
- 30 October 2026
What a heat pump looks like in Knapp
About 62% of homes in the Knapp area date from 1945 to 1972, according to Valuation Office Agency council tax records, and Census 2021 figures found about 85% of households in detached or semi-detached houses. For homes of that age, the survey checks the insulation, the radiators and the hot water setup. 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.
Knapp is about 2 miles north-west of Chandler's Ford, in Hampshire. Properties in Knapp get the same service as everywhere we cover: a look at the job first, a fixed-price quote and written records at the end. Knapp is one of 683 towns, villages and districts in Hampshire we cover. Guildford is in our area too, about 40 miles from Knapp.
Jobs in SO51 are looked at, quoted and booked the same way as anywhere else. Close to Knapp, our area also takes in Ampfield (1 mile south-west), Broadgate (1 mile south-east), Gosport (1 mile south-west), Lower Slackstead (1 mile north-west) and Crampmoor (2 miles south-west). Larger places within reach include Winchester (6 miles north-east), Eastleigh (5 miles south-east), Fareham (15 miles south-east) and Andover (14 miles north).
What’s near Knapp
Locally, jobs take us to houses, flats and workplaces close to White Horse Public House, among other places. The closest station to Knapp is Chandlers Ford station, roughly 2.5 miles south-east of the centre. Well-known places in the area include Romsey Community Hospital (2.9 miles south-west) and King Johns House (3.7 miles south-west). Not far away are Emer Bog and Baddesley Common.
Other services in Knapp
Common problems we fix in Knapp
When a home is being extended or renovated, it’s a good moment to look at heat pumps. It’s simpler to plan radiators, pipework and a cylinder while the builders are in.
Reasons to give us a call include:
- Working out whether radiators need upsizing
- A boiler that is getting old
- Finding a place for the outdoor unit
Live in one of the older houses around Church of St Mark? Expect the survey to look closely at heat loss and at the building’s planning status.
Questions to ask before you book
- The make and model of any parts or equipment being quoted
- Whether the manufacturer’s warranty depends on regular servicing
- Whether anyone has checked the property or the system first
When something else is needed
To be straight with you, some problems need a different answer:
- 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
- Planning approval where permitted development doesn’t apply
Not sure which it is? You can call 07833 053749 or send an email and we will tell you honestly.
Where we work
- Hot water cylinders
- Air-to-air heat pumps
- Air-to-water heat pumps
- Underfloor heating
- Homes heated by oil, LPG or gas
- Radiator systems
What we do, step by step
Every visit follows the same order: agree the plan on site, put the dust sheets down, carry out the job, check the system and explain it all to you. The visit itself takes from a couple of days to around a week, depending on the system and how much of the heating changes. Somewhere like Knapp, it helps to know about lanes, gates and where to park.
- First we talk through the property and the current system.
- We measure heat loss for every room.
- The design covers the heat pump, emitters, hot water and outdoor unit.
- Cost, grant and VAT appear on one fixed-price quote.
- Installation, commissioning and MCS registration complete the job.
Getting ready for the visit
- Have the make and model of any existing unit to hand
- Keep pets and children away from the work area
- Let us know if the units are on a roof, a high wall or in a locked area
How to get a quote
Quoting starts with a diagnosis, either on a site survey or, for simple jobs, from your pictures and details. Then you get a fixed price before any work starts.
Advice
Aftercare tips
How well a system lasts depends on use and care. Here’s what we suggest:
- Keep the MCS certificate with the manufacturer’s paperwork
- Book a yearly service
- Find out the grant position at the survey
In cold, damp weather the outdoor unit runs a defrost cycle from time to time. It may give off steam or sound different for a few minutes, and that’s normal.
Let the heat pump run steadily rather than switching it on and off as explained at handover.
Questions from Knapp
Do I need planning permission for a heat pump in Knapp?
That depends on the building and where the outdoor unit goes. Central Knapp sits inside the Ampfield Conservation Area. 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 Knapp, usually Test Valley council).
Do you cover smaller places like Knapp?
We do. Villages and hamlets get the same service as the bigger towns. Visits to smaller places are planned so the engineer arrives with what the job needs.
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 the quote is fixed.
Will you make a mess?
We start with protection: sheets over the floor and nearby furniture. Any drilling is agreed with you first, and we clear up the dust and offcuts when we finish.
Which brands do you work with?
Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries, Hitachi and others. For a new system, we suggest the make and model that suit the property and tell you why.
Do you provide F-Gas records?
Yes. It’s your proof of what was done: the date, the work, and any refrigerant added or recovered.
Will you work on another installer’s system?
Yes. Systems fitted by other companies are fine, on all the main brands. Tell us the make and model and send any paperwork you have.
A customer’s words
“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