ECO4 Grants Scotland: Complete Eligibility & Application Guide
The Energy Company Obligation Phase 4 provides fully funded energy efficiency improvements for eligible Scottish households. This independent guide explains who qualifies, what is covered, and how to apply.
Updated
Feb 2026
Next Review
May 2026
Verified
Gov Sources
Coverage
All Scotland
What is the ECO4 scheme in Scotland?
The ECO4 (Energy Company Obligation 4) scheme in Scotland is a government-mandated programme running from April 2022 to March 2026 that requires major energy companies to fund energy efficiency improvements for low-income households. Eligible Scottish residents can receive fully funded installations of insulation, heating systems, and renewable technologies worth up to £25,000 with no repayment required.
Source: Ofgem ECO4 Guidance, 2025
What is ECO4?
The Energy Company Obligation (ECO4) is the fourth phase of the government's flagship energy efficiency scheme. Running from April 2022 to March 2026, ECO4 requires major energy suppliers to fund home improvements that reduce energy consumption and lower bills.
In Scotland, ECO4 has helped thousands of households access free insulation, heating upgrades, and renewable energy installations. The scheme specifically targets low-income households, those in fuel poverty, and properties with poor energy efficiency ratings.
The value of improvements can reach up to £25,000, covering everything from loft insulation to complete heating system replacements. All work is carried out by TrustMark certified installers and comes with insurance-backed guarantees.
What ECO4 Covers
Free Insulation
Cavity wall, loft, and solid wall insulation
Free Boiler
A-rated boiler replacement with smart controls
Air Source Heat Pump
Renewable heating system installation
Smart Controls
Thermostats and heating controls
ECO4 Eligibility Criteria
You may qualify for ECO4 funding if you meet one or more of the following criteria:
- Receive means-tested benefits (Universal Credit, Pension Credit, etc.)
- Have a household income under £31,000
- Have an EPC rating of D-G
- Own your home or have landlord permission
- Property is in Scotland
Qualifying Means-Tested Benefits
How ECO4 Works
Check Eligibility
Answer a few questions about your home and circumstances
Home Survey
A qualified surveyor assesses your property at no cost
Get Approved
Your application is submitted to the scheme administrator
Installation
TrustMark certified installers complete the work
ECO4 Frequently Asked Questions
ECO4 stands for Energy Company Obligation Phase 4, the fourth iteration of the UK government's domestic energy efficiency scheme. It legally requires major energy suppliers (British Gas, E.ON, EDF, Scottish Power, OVO, Shell Energy) to fund energy improvements for low-income households. ECO4 runs from April 2022 to March 2026, with £4 billion allocated UK-wide, including approximately £400 million for Scotland.
Qualifying benefits for ECO4 in Scotland include Universal Credit, Pension Credit (Guarantee or Savings Credit), Child Tax Credit, Working Tax Credit, Housing Benefit, Income Support, Jobseeker's Allowance (Income-Based), Employment and Support Allowance (Income-Related), Warm Home Discount, and Child Benefit (for households with 3+ children). You only need to receive one qualifying benefit to be eligible.
Yes, homeowners with no mortgage qualify for ECO4 grants in Scotland. Mortgage status is irrelevant to eligibility. The scheme assesses benefit receipt, household income, and EPC rating rather than property ownership structure. Outright homeowners often benefit most as they do not require lender permission for structural improvements like solid wall insulation or renewable energy installations.
ECO4 can install solar panels in Scotland, but only alongside primary heating and insulation measures. Solar panels alone do not qualify. The scheme prioritises heating systems (heat pumps, boilers) and insulation (cavity wall, loft, solid wall) before adding solar PV. Properties must demonstrate that solar panels meaningfully contribute to reducing fuel poverty and improving EPC ratings.
No, you do not need a broken boiler to qualify for ECO4 in Scotland. The scheme assesses your property's overall energy efficiency, not just heating system condition. However, if your boiler is over 10-15 years old, inefficient (non-condensing), or expensive to run, you are more likely to receive a replacement. Modern condensing boilers or heat pumps significantly reduce fuel bills.
ECO4 funding is typically limited to once per property per scheme phase (2022-2026). However, if initial measures did not address all eligible improvements (e.g., you got loft insulation but still need cavity wall insulation), you may qualify for additional funding. Properties with EPC ratings below C may receive further support in future ECO phases beyond 2026.
ECO4 grants are funded entirely by major energy companies (British Gas, E.ON, EDF, Scottish Power, OVO, Shell Energy) who are legally obligated by UK government legislation to spend billions improving energy efficiency in low-income homes. Eligible households receive far more in grant value (£5,000-£25,000) than they contribute through energy bills.
Related Resources
Ready to Check Your Eligibility?
Find out which Scottish energy grants your household may qualify for. The eligibility assessment takes 2 minutes and carries no obligation.
You can also apply through Home Energy Scotland (free government service), your energy supplier directly, or any approved installer. We always recommend getting independent advice before committing to any programme.