Energy performance · Funded retrofit
ECO and Funded Retrofit Assessments in London
Survey, EPC and retrofit assessment support for households, landlords, housing providers and installers working under energy-efficiency schemes such as ECO.
What ECO is
The Energy Company Obligation (ECO) is a government energy-efficiency scheme in Great Britain funded through energy suppliers. It supports eligible households with measures such as insulation and heating upgrades. Funded work normally has to follow PAS 2035 and be carried out by installers registered with TrustMark.
Current position: ECO4 is scheduled to close at the end of December 2026, and the government’s Warm Homes Plan is expected to follow. Rules, eligibility and available measures change, so we confirm the current position when you enquire. We cannot guarantee funding: eligibility is determined under the scheme rules.
Where we help
- Pre-install surveys and EPCs – the property assessment that funded work relies on, including domestic EPCs.
- Retrofit assessment – a fuller review of the building under retrofit assessment and coordination.
- Post-installation EPCs – evidence of the change, through pre and post retrofit EPCs.
- High-volume survey programmes – capacity to survey large numbers of homes across London for councils, housing associations and installers.
Who this is for
- Householders and tenants who want to know whether their home may qualify (landlord consent is needed for private rented property)
- Private landlords and agents planning improvements
- Housing associations and councils running retrofit programmes
- Installers and managing agents who need reliable survey capacity
How to start
- Tell us about the property or programme – addresses, tenure and what you are trying to achieve.
- We confirm the route – whether the property needs an EPC, a retrofit assessment or both, and how scheme requirements affect it.
- Survey and report – assessments are completed by qualified assessors and reported back to you.
Request an ECO or retrofit survey
Send the postcode, tenure and what you need. For programmes, include the number of properties and target timescales.
Frequently asked questions
Is ECO4 still available?
ECO4 is scheduled to close at the end of December 2026, and the Warm Homes Plan is expected to follow. Rules change, so we confirm the current position when you enquire.
Can you guarantee a home will qualify?
No. Eligibility is determined under the scheme rules, and funding is not guaranteed. We can assess the property and explain the likely route.
Do you install the measures?
We coordinate surveys, EPCs and retrofit assessments. Installation is carried out by appropriately qualified and registered installers.
Can you support a large programme?
Yes. We can plan high-volume survey programmes across London. Send the number of properties, areas and timescales.
Do landlords need to give consent?
For private rented property, funded works generally need the landlord’s agreement. We can explain what is typically required.