ECO4 Flex

We do not run the ECO or ECO4 Flex scheme, endorse or vet any installation companies.

The energy company obligation scheme, known as ECO, helps to make homes more energy efficient by installing improvements, free of charge to eligible households. You could get the following:

insulation (for example, loft, roofs, and walls)
low carbon heating (for example, heat pumps, energy-efficient boilers, heating controls, electric storage heaters)
solar PV panels
high-performance external doors
window glazing
draught proofing

These improvements can help you reduce your home’s carbon emissions and your heating costs.

We do not pay for, choose, or install the energy efficiency improvements. Trustmark accredited private installers will carry out the installation work.

Who can apply

This scheme is for private homeowners and private renters with an energy performance rating of D, E, F, or G. You can check your energy rating on the government website.

You can apply through an energy supplier if you receive:

child benefit
pension guarantee credit
income-related employment and support allowance (ESA)
income-based jobseeker's allowance (JSA)
income support
tax credits (child tax credits and working tax credits)
universal credit
housing benefit
pension credit saving credit

If you don’t receive any of these, you can check if your household qualifies under the Flex criteria listed in our statements of intent:

You will need to provide documents so we can verify your eligibility against these criteria.

Improvements you can apply for

Your chosen installer(s) will carry out a survey. They decide what level of support and type of improvements you could receive.

If eligible, you could get the following:

insulation (for example, loft, roofs, and walls)
low carbon heating (for example, heat pumps, energy-efficient boilers, heating controls, electric storage heaters)
solar PV panels
high-performance external doors
window glazing
draught proofing.

How to find an installer

You can find the list of installers we work with to deliver ECO4 Flex and their contact details on the Action on Energy website.

When they visit, ask for their company ID, name, and contact details so you track the progress of your application.

Checks for installations

It is your responsibility to check:

if you need planning permission or building regulations approval for the work being done
if the installer is part of a competent person scheme like MCS, NICEIC, CIGA, or Stroma - if they are they can self-certify their work and won’t need to get building regulations approval from us
if the installer is Gas Safe registered to work on gas boilers
if they offer guarantees or warranties - make sure you get these documents after the installation

The ECO4 Flex Process

Please note that we do not oversee ECO, endorse any installation companies or require further vetting of installation or lead generation companies.

Step 1: Choose an installer

Choose a TrustMark-registered installer.

Step 2: Home visit

The installer checks which improvements could help the energy efficiency of your home. They finish an application form with you and work with you to gather evidence to prove you are eligible.

Step 3: Submitting the application

The installer sends the application and evidence to us. You get the installer's contact details for follow-up.

Step 4: Assessment

We will review your application. If you qualify, we will sign and return a declaration to the installer. This is valid for a year. Please note that a declaration doesn’t guarantee an install.

Step 5: Installation

The installer does the work and provides a guarantee and a warranty for the works completed.

Information for installers

To express your interest in providing energy efficiency improvements under this scheme, please email homeenergy@scambs.gov.uk