Booking ECO4 work before the scheme closes: a UK household timeline (2026)

Guide by ApplyFreeBoiler.uk (Reliant Energy Solutions Ltd), a heating and insulation installer in Bury, Greater Manchester. We are not the government, Ofgem or an energy supplier.

ECO4, the Energy Company Obligation scheme that funds heating and insulation upgrades for eligible homes in England, Scotland and Wales, is due to close on 31 December 2026. If you think your home may qualify, it helps to understand the steps involved so you are not left waiting. This timeline is general information from ApplyFreeBoiler.uk, a heating and insulation installer in Bury. Every home and installer is different, so treat it as a guide rather than a promise of dates or funding.

1. Start with an eligibility check

The first step is checking whether your household and home may fit an ECO4 route, for example through certain benefits, local authority flexible eligibility (LA Flex) or the home's energy rating. Doing this early gives you time to sort out any questions.

2. Gather your documents

Installers usually ask for proof of identity, proof of address and, where relevant, proof of benefits or a council eligibility letter. Having these ready can save days. Tenants also need written permission from the landlord.

3. Book the survey

A surveyor visits to look at the home, the heating and the walls and loft, and to work out which measures may be possible. Make sure someone over 18 can be at home and that the surveyor can reach the boiler, loft and outside walls.

4. Allow time between survey and install

After the survey there are checks and paperwork before work can be booked. The gap varies by installer and measure, so ask for a realistic estimate rather than assuming the work will happen straight away.

5. Plan around winter and the holidays

Boiler and insulation work in December can clash with cold weather, family visits and installers' holiday closures. Ask how they handle cold spells, and keep a back-up heater and warm bedding handy in case the heating is off for part of a day.

6. Keep in touch with the installer

If your circumstances change, such as moving house, a change in benefits or a new tenancy, tell the installer straight away because it can affect eligibility. Keep emails and reference numbers together in one place.

7. Be wary of pressure and cold callers

A closing date can be used as a pressure tactic. Take your time, check who you are dealing with, and never share bank details with anyone claiming you must act today to keep a grant.

8. Check funding and local figures

See ECO measures by council on ApplyFreeBoiler.uk, built from DESNZ Household Energy Efficiency statistics, to see how many ECO measures have been installed in your local authority area. Use the ApplyFreeBoiler.uk eligibility check to see whether an ECO4 heating or insulation pathway may be available for your home in England, Scotland or Wales. ECO4 is due to close on 31 December 2026.