Heat Pumps in St Austell: Switching from Oil, BUS Grant & Costs 2026
With 45% of St Austell homes off the mains gas grid, heat pumps are an increasingly popular choice. The £7,500 Boiler Upgrade Scheme grant makes switching from oil or LPG to a heat pump highly affordable.
Why Switch from Oil?
With 45% of St Austell homes off the mains gas grid, a significant proportion of local homeowners rely on oil, LPG, or electric storage heaters. Oil prices are volatile, deliveries require forward planning, and oil boilers are significantly less efficient than modern heat pumps. At current energy prices, switching from oil to a heat pump typically saves £400–£700/year on heating costs.
Air source heat pumps use electricity to extract heat from outdoor air, delivering 3–4 units of heat for every 1 unit of electricity. Cornwall's mild climate means Cornish heat pumps consistently outperform UK average efficiency figures.
BUS Grant Eligibility
The Boiler Upgrade Scheme provides a £7,500 government grant for eligible homes replacing oil, LPG, or electric heating with a heat pump. CCS Heating & Renewables is MCS-certified and handles the full grant application process — the grant is applied directly at installation, reducing your upfront cost automatically.
Eligibility requires a current EPC with no outstanding loft or cavity wall insulation recommendations. We check your EPC during the free survey and advise on any steps needed to qualify.
Property Suitability
Modern heat pumps suit a wide range of St Austell property types:
- Victorian terraces and semis: High-temperature heat pumps (Vaillant aroTHERM plus, Daikin Altherma 3 H HT) deliver up to 70°C flow temperature — suitable for most older radiator systems
- Post-war detached homes: Excellent heat pump candidates — good insulation and garden space for the outdoor unit
- Bungalows: Often ideal — single-storey layout, accessible loft for cylinder, and good garden access
- New builds: Frequently specified with heat pumps from the outset, often with underfloor heating
Off-Gas Areas Near St Austell
The villages and hamlets surrounding St Austell are predominantly off the gas grid: Sticker, Hewas Water, Polgooth, Tregorrick, and the rural areas toward Mevagissey and Gorran Haven are all excellent candidates for the BUS grant. See our Cornwall off-gas villages guide for village-by-village details.
Solar Panel Pairing
The most cost-effective setup for St Austell's off-gas homes is a heat pump combined with solar panels. Solar generation covers a significant proportion of heat pump running costs during spring, summer, and autumn. See our St Austell solar guide for system sizes and costs.
Book a Free Survey
CCS Heating & Renewables serves St Austell, Charlestown, Duporth, Polgooth, Sticker, and the wider mid-Cornwall area. We carry out free heat pump surveys, handle BUS grant applications end-to-end, and install Daikin, Mitsubishi, and Vaillant heat pumps. Book your free St Austell heat pump survey today.
Need personalised advice?
Our MCS certified engineers can answer your questions and provide a free, no-obligation assessment for your property.