Heating & Boilers · Dorset

Cost of Air Source Heat Pump Installation in Weymouth (2026)

Air Source Heat Pump Installation in Weymouth works out at £7,600 to £15,200 per system installed in 2025, give or take. Weymouth runs a bit under the UK average, which mostly comes down to Dorset labour rates and what the local housing stock demands. Straight like-for-like jobs hit the lower end; anything that needs pipework or structural changes pushes you up.

Typical cost in Weymouth -5%
Low £7,600
Typical £11,400
High £15,200
Typical price per system installed Last updated 22 April 2026
  • Gas Safe Registered engineers only
  • OFTEC For oil-fired appliances
  • MCS Heat-pump certification
  • HETAS Solid fuel & biomass

About air source heat pump installation in Weymouth

Weymouth is a small town of around 53,000 in Dorset. 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 DT3, DT4 tend to be quicker jobs with standardised fittings. Local trade prices sit in the same ballpark as the UK average, with Dorset firms quoting close to national rates.

Bristol and Bath run hot. Step outside them and into Devon, Cornwall or rural Somerset and the supply thins out fast, especially for specialist trades like heat pumps or unvented cylinders. Lead times get longer the further west you go, and most firms will add travel if you're past the nearest big town.

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 Weymouth

Basic £7,600 – £10,450

7kW unit for a well-insulated 2–3 bed with suitable radiators

Standard £10,450 – £13,300

11kW unit, new cylinder, 3–4 radiator upgrades

Complex £13,300 – £19,000

16kW unit, large property, full emitter upgrade and fabric works

What affects the price of air source heat pump installation in Weymouth?

  • 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

Weymouth vs the UK average

Weymouth sits in the heating & boilers market at a cost multiplier of 0.95× the UK national average. That puts Weymouth air source heat pump installation prices at £7,600–£15,200 versus the UK average of £8,000–£16,000 per system installed.

Weymouth vs UK national average — per system installed Weymouth £7,600 £15,200 UK average £8,000 £16,000
Typical price range, per system installed

Air Source Heat Pump Installation cost calculator — Weymouth

Estimated cost in Weymouth
£10,975 – £13,965
per system installed

Estimate based on live 2025 UK trade pricing. Always get 3 written quotes before committing.

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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 Weymouth?

Budget £7,600 to £15,200 per system installed for air source heat pump installation in Weymouth. Prices here are around 5% cheaper than the UK average. What moves a quote inside that range is mostly heating contractor day rates in Dorset and the specific material list for your job.

How long does air source heat pump installation take in Weymouth?

A straightforward air source heat pump installation job in Weymouth 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 Weymouth?

A proper air source heat pump installation quote in Weymouth 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 Weymouth than the UK average?

Air Source Heat Pump Installation in Weymouth runs around 5% cheaper than the UK average. The UK-wide benchmark for this job is £8,000 to £16,000 per system installed; Weymouth quotes tend to land between £7,600 and £15,200. 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 Weymouth?

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 Dorset Council before you book anything in. It's a free call and saves a world of grief later.