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UK retrofit funding.
The complete
2026 guide.

The UK retrofit funding landscape changes regularly. This guide covers every active scheme, eligibility criteria and what PAS2035 compliance is required — updated for 2026.

Active Schemes

Current UK retrofit
funding schemes.

All schemes listed below are currently active and accepting applications or in active delivery. PAS2035 compliance is required for all major measures under each scheme.

Active
Warm Homes Social Housing Fund

The flagship social housing decarbonisation scheme — the largest single investment in improving the energy efficiency of social housing in UK history.

£1.29bn
Total funding
Social housing
Property type
PAS2035
Required

Who it's for

Housing associations
Local authority housing
Registered social landlords

Eligible measures

Insulation (loft, cavity, solid wall, floor)
Heat pumps (air source, ground source)
Solar PV and battery storage
Ventilation improvements
Low energy lighting
Active
Warm Homes Local Grant

The successor to the Local Authority Delivery scheme — supporting local authorities to improve energy efficiency in private tenure properties for low-income households.

£500m
Total funding
2025–2028
Scheme period
PAS2035
Required

Who it's for

Local authorities (as delivery body)
Owner-occupiers on low incomes
Private rented sector properties

Key requirements

Income or benefit eligibility criteria
PAS2035 compliance for most measures
TrustMark lodgement required
EPC improvement targets
Active
Boiler Upgrade Scheme

Government grant scheme supporting homeowners and landlords to replace fossil fuel heating systems with low carbon alternatives.

£7,500
Heat pump grant
£5,000
Biomass grant
PAS2035
Heat pumps: required

Eligible technologies

Air source heat pumps — £7,500
Ground source heat pumps — £7,500
Biomass boilers — £5,000

Who can apply

Homeowners in England and Wales
Landlords (private rented sector)
Must replace existing fossil fuel system
Closed
ECO4

ECO4 has ended and is no longer accepting new referrals. Properties previously identified under ECO4 pathways may be eligible under the Warm Homes Plan schemes.

ECO4 (Energy Company Obligation 4) ran from April 2022 to March 2026 and has now closed. If you have properties that were being considered for ECO4, contact us to discuss eligibility under the current Warm Homes Plan schemes.

Discuss your properties
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The funding landscape
changes regularly.

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Get in Touch

Questions about
funding eligibility?

Our team has direct experience across all current UK retrofit funding schemes. Contact us to discuss your programme or property portfolio.