In Swale, Medway the average household spends £688 a year on heating — 28% lower than the UK average of £960. Typical homes are 83.0 m² with 4.2 rooms. The local population is around 50,824 residents (Census 2021). Switching to an air-source heat pump could save up to £275 a year for an average home after the £7,500 Boiler Upgrade Scheme grant.


Areas covered

Rainham, Parkwood, Twydall, Hempstead, Wigmore

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 Swale, Medway are around 15% higher than the UK average.

CategoryNational cost range Adjusted for ME8 (×1.15) Net after £7,500 BUS grant
Small flats / simple installs £ 6,000 – £ 7,000 £ 6,900 – £ 8,050 from ~£ 1,000*
2–3-bed semis / moderate upgrades £ 8,000 – £ 12,000 £ 9,200 – £ 13,800 £ 1,700 – £ 6,300
Large detached / extensive work £ 13,000 – £ 18,000 £ 14,950 – £ 20,700 £ 7,450 – £ 13,200

* 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 £4,767 for a typical 3-bedroom home after the £7,500 grant.

How much can I save on heating bills?

Roughly £275 per year for the average home at current price-cap rates.

Compare nearby areas: ME5 (Medway, Maidstone, Tonbridge and Malling) · ME6 (Tonbridge and Malling) · ME7 (Medway, Maidstone) · ME9 (Swale, Medway, Maidstone) · ME10 (Swale) · ME11 (Swale)

Heat Pump Installation & Ownership Guide

Everything you need to know

Installation Timeline

1
Initial Quote & Survey 1-2 weeks
MCS-certified installer visits to assess your property, calculate heat loss, and provide detailed quote
📋
Heat loss calculation
📏
Property measurements
💡
System design proposal
💰
Fixed price quote
2
Planning & Permits 0-2 weeks (formal planning ≈ 8 weeks for listed / conservation properties)
Most properties need no planning permission thanks to 2025 rule changes
No boundary restrictions (new rules)
🏠
Permitted development rights
📋
Building regulations notification
🔧
MCS compliance check
3
Installation 1-3 days
Professional installation of outdoor unit, indoor components, and system integration
🔧
Outdoor unit mounting
🔌
Electrical connections
🔄
System commissioning
📱
Smart controls setup
4
Certification & Grant typically 1-2 weeks
MCS certificate issued, building control sign-off, and £7,500 grant processed
📜
MCS commissioning certificate
🏛️
Building control approval
💰
BUS grant payment
📋
Warranty registration
Ongoing Ownership 15-20 years
Minimal maintenance required - annual service and basic upkeep for optimal performance
🔧
Annual service: £150-300
🧹
Filter cleaning (DIY)
❄️
Winter prep checks
📊
Performance monitoring

Planning Permission Requirements

No Permission Needed

Standard Properties

    ✅ Detached, semi-detached, terraced houses
    ✅ Unit size up to 1 m³ (increased from 0.6 m³)
    ✅ No 1-meter boundary rule (removed 2025)
    ✅ Up to 2 units for detached houses
    ✅ Noise limit: 37 dB at neighbor's window

Check Required

Special Circumstances

    ⚠️ Listed buildings
    ⚠️ Conservation areas
    ⚠️ World Heritage sites
    ⚠️ Areas of Outstanding Natural Beauty
    ⚠️ Flats and maisonettes

Maintenance & Ownership Costs

£150-300
Annual Service
£0-50
Filter Replacement
15-20
Years Lifespan
5-10
Years Warranty
💡 Maintenance Tip: Regular servicing prevents up to 25% efficiency loss. Annual services typically pay for themselves in energy savings and prevent costly repairs.