Funding Availability
Funding for PAS 2035-Compliant Retrofits
Government & private routes to fund insulation, heating upgrades and whole-house retrofit. Use the filters to see what applies in your area and situation.
Most schemes require TrustMark/PAS 2035 processes for design and installation. Always confirm eligibility and installer accreditation before works.
Great British Insulation Scheme (GBIS)
Supplier-led insulation support for eligible homes (e.g. council tax bands A–E or low-income routes). Typical measures include loft, cavity, and solid wall insulation.
- UK-wide • Homeowners & some private tenants
- Delivered via obligated energy suppliers
- Retrofit pathway typically under PAS 2035
Energy Company Obligation (ECO4)
Targeted energy efficiency and heating upgrades for low-income and vulnerable households. Can fund insulation, low carbon heating, glazing and more via obligated suppliers.
- UK-wide • Priority for EPC D–G homes
- Local Authority “ECO4 Flex” route may apply
- Works typically delivered under PAS 2035
Boiler Upgrade Scheme (BUS)
Grants towards low-carbon heating: £7,500 for air or ground source heat pumps; £5,000 for some biomass. Apply via an MCS installer.
- England & Wales (check eligibility by property)
- Installer applies on your behalf
- Complementary to PAS 2035 projects
Home Upgrade Grant (HUG2)
Local authority-led upgrades for low-income, off-gas homes (EPC D–G). Delivery windows and availability vary by council.
- England • Council-run programmes
- Check your local authority for current offers
Warm Homes: Social Housing Fund (Wave 3)
Capital funding for registered providers and councils to improve stock to higher EPC bands via fabric-first, low carbon measures under PAS 2035/TrustMark.
- England • For social landlords
- Check current application rounds & timelines
Home Energy Scotland – Grant & Loan
Grants and interest-free loans for heat pumps, insulation and other measures. Additional rural uplift may apply.
- Scotland • Homeowners (and some private landlords)
- Typical grants up to £7,500 for heat pumps (plus optional loan)
Warm Homes Nest (Wales)
Free advice and, for eligible households, free home energy improvements such as insulation, heat pumps and solar PV.
- Wales • Low-income and vulnerable households
- Delivered via Welsh Government Warm Homes
0% VAT on Energy-Saving Materials
Zero-rated VAT on installation of qualifying measures (e.g. insulation, heat pumps groundworks) until 31 March 2027 in Great Britain.
- UK-wide (GB) • Applies to installation, not product-only sales
- Scope and qualifying measures set by HMRC
Green Mortgages & Private Finance
Some lenders offer better rates or cashback for energy-efficiency upgrades or higher EPCs. Offers vary and change frequently.
- UK-wide • Check with your lender or broker
- Can complement grants/obligations for match funding