In Northumberland, Scottish Borders the average household spends £1,289 a year on heating — 34% higher than the UK average of £960. Typical homes are 108.0 m² with 5.0 rooms. The local population is around 1,245 residents (Census 2021). Switching to an air-source heat pump could save up to £516 a year for an average home after the £7,500 Boiler Upgrade Scheme grant.


Areas covered

Coldstream, Leitholm, Birgham, Lennel

Typical air-source heat-pump installation costs range from about £6,000 at the low end to roughly £18,000 at the high end. Most homes fall somewhere between £7,000 and £15,000. These prices are before the £7,500 BUS grant (in addition, qualifying rural and island homes in Scotland may receive a further £1,500 uplift under the Home Energy Scotland scheme, for up to £9 000 of grant funding).

Installation costs in Northumberland, Scottish Borders are slightly below the UK average.

CategoryNational cost range Adjusted for TD12 (×0.92) Net after £7,500 BUS grant
Small flats / simple installs £ 6,000 – £ 7,000 £ 5,520 – £ 6,440 from ~£ 1,000*
2–3-bed semis / moderate upgrades £ 8,000 – £ 12,000 £ 7,360 – £ 11,040 from ~£ 1,000*
Large detached / extensive work £ 13,000 – £ 18,000 £ 11,960 – £ 16,560 £ 4,460 – £ 9,060

* Minimum net costs rarely fall below £1,000 after grant, since most installs incur at least minor extra work.

Lower end
  • Minimal groundwork or plumbing modification required
  • Well-insulated homes that only need a compact ASHP unit
Mid end
  • Moderate radiator or underfloor-heating upgrades
  • Typical pump size (8–12 kW)
Upper end
  • Large detached houses or older properties needing major pipework
  • Extensive insulation or radiator replacement
  • Multi-zone controls and bespoke system design

Heat pump FAQs

How much does a heat pump cost here?

About £2,313 for a typical 3-bedroom home after the £7,500 grant.

How much can I save on heating bills?

Roughly £516 per year for the average home at current price-cap rates.

  • £1,289 Average Heating Cost UK avg £960
  • 108.0 m² Median Floor Area UK avg 84.7 m²
  • 5.0 Average Rooms UK avg 4.4

Local energy snapshot

Latest tariff window: 2025Q4

Ofgem region & price cap

Southern Scotland · 25.84p/kWh · 56.55p/day

PV potential (south-facing)

921 kWh per kWp/year

Dwelling mix

House 46.9% Flat 6.8% Bungalow 45.9% Detached 40.5% Semi-detached 36.1% Terraced 23.5%

EPC certificates

571 on record

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Also in Your Area: Solar Panel Potential

Heat pumps increase electricity usage. Solar panels can offset your higher bills.

Without heat pump:

Solar saves ~£903/year
Payback: 13.5 years

With heat pump:

Solar saves ~£1,078/year
Payback: 11.3 years

  • Typical system 6 kW
  • Installation cost ~£12,200
  • Annual generation 5,526 kWh

See detailed solar data for TD12 →

Data from our sister site, Solar By Postcode UK

Compare nearby areas: TD9 (Cumberland, Scottish Borders) · TD15 (Northumberland, Scottish Borders)

Heat Pump Installation & Ownership Guide

Timeline, planning rules, maintenance and what to expect

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