Cost of Air Source Heat Pump Installation in Sevenoaks (2026)
If you're looking at air source heat pump installation in Sevenoaks right now, you should be seeing quotes in the £10,000 to £20,000 range per system installed. That's based on current Kent contractor rates and the wider UK market. Anything well outside those numbers is worth questioning before you sign.
About air source heat pump installation in Sevenoaks
Sevenoaks is a market town of around 29,000 in Kent. The housing is mostly period cottages, Edwardian villas and 1930s semi-detached housing alongside newer commuter developments. That matters: older properties usually mean more pipework, rewiring and retrofit surprises, while newer builds in districts like TN13, TN14 tend to be quicker jobs with standardised fittings. Local trade prices sit on the expensive side for UK trade work. That's mostly wage levels plus the cost of running a van and a yard in and around Kent.
A lot of South East firms work both London and local jobs. Rates usually track London with a small discount, so you're rarely getting a bargain. Peak season runs May to September and good tradespeople can be three to four weeks out. Out of season is the time to price round.
Heating is a regulated trade. Gas Safe for anything gas, OFTEC for oil, HETAS for wood burners and stoves, MCS for heat pumps. The bulk of the price is the engineer's time, roughly £300 to £500 a day in 2025, plus the appliance. A summer quote on the same job is usually 10 to 15 percent less than a winter emergency one, so don't leave an ageing boiler until October.
Air Source Heat Pump Installation cost breakdown in Sevenoaks
7kW unit for a well-insulated 2–3 bed with suitable radiators
11kW unit, new cylinder, 3–4 radiator upgrades
16kW unit, large property, full emitter upgrade and fabric works
What affects the price of air source heat pump installation in Sevenoaks?
- Heat pump size (kW output) for the property
- Whether a hot water cylinder is included
- Radiator upgrades needed for lower flow temperatures
- MCS-certified installer rates
- Boiler Upgrade Scheme grant eligibility (£7,500 off)
- Outdoor unit siting and pipework runs
Sevenoaks vs the UK average
Sevenoaks sits in the heating & boilers market at a cost multiplier of 1.25× the UK national average. That puts Sevenoaks air source heat pump installation prices at £10,000–£20,000 versus the UK average of £8,000–£16,000 per system installed.
Air Source Heat Pump Installation cost calculator — Sevenoaks
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What's typically included in a air source heat pump installation quote
- MCS certification (required for BUS grant)
- Supply and install of outdoor and indoor units
- Hot water cylinder (where specified)
- Controls and commissioning
- DNO notification for electrical load
Frequently asked questions
How much does air source heat pump installation cost in Sevenoaks?
Budget £10,000 to £20,000 per system installed for air source heat pump installation in Sevenoaks. Prices here are around 25% more expensive than the UK average. What moves a quote inside that range is mostly heating contractor day rates in Kent and the specific material list for your job.
How long does air source heat pump installation take in Sevenoaks?
A straightforward air source heat pump installation job in Sevenoaks runs to 3–7 days. You can lose days to things outside the contractor's control — parts on backorder, awkward access, or a firm slotting your job around existing bookings. Ask for a start date and expected finish up front.
What's included in the price of air source heat pump installation in Sevenoaks?
A proper air source heat pump installation quote in Sevenoaks should cover: MCS certification (required for BUS grant); Supply and install of outdoor and indoor units; Hot water cylinder (where specified); Controls and commissioning; DNO notification for electrical load. If any of those aren't itemised on your quote, push back and ask. A written guarantee with a clear warranty period is reasonable to expect on this kind of work.
Is air source heat pump installation cheaper in Sevenoaks than the UK average?
Air Source Heat Pump Installation in Sevenoaks runs around 25% more expensive than the UK average. The UK-wide benchmark for this job is £8,000 to £16,000 per system installed; Sevenoaks quotes tend to land between £10,000 and £20,000. Handy to know what the average actually looks like before you price round.
Do I need planning permission for air source heat pump installation in Sevenoaks?
Most installations fall under Permitted Development, but listed buildings and conservation areas may require planning consent. If the property sits in a conservation area or is listed, ring Kent Council before you book anything in. It's a free call and saves a world of grief later.
See all air source heat pump installation prices across the UK or browse all tradespeople costs in Sevenoaks.