ECO4 vs LA Flex — Which Boiler Grant Scheme Is Right for You?

If you're exploring government-backed boiler grants in the UK, you've likely come across two major names: ECO4 and LA Flex. While both are part of the UK's energy efficiency mission, they serve different types of applicants — and understanding the difference could mean the difference between a free boiler and a missed opportunity.

At FreeBoilerUpgrade.uk, we help households across the UK navigate both schemes. Whether you're on Universal Credit or don't receive any benefits but have a health condition or low income, there's likely a path for you. Below, we've broken down how the ECO4 scheme and the LA Flex scheme compare, so you can see which route is best for your home and situation.

Comparison	ECO4 Scheme	LA Flex Scheme
Eligibility Basis	Based on receipt of qualifying benefits	Based on council-set flexible criteria
Who Can Apply	People on Universal Credit, PIP, etc.	Low-income households not on benefits
Property Types	Mainly homeowners and private tenants	Often includes social housing & council tenants
Benefit Requirement	Yes, must be receiving specific benefits	Not required, may include health/disability or income proof
Council Involvement	None — national rules apply	Yes — approved by your Local Authority
Turnaround Time	Moderate (3–6 weeks)	Can be faster if council is proactive
Boiler Fully Covered?	Yes, under confirmed eligibility	Yes, under confirmed eligibility

So, Which One Should You Choose?

If you're on Universal Credit, Pension Credit, or Disability Benefits, the ECO4 scheme is your route. If you're not on benefits but have a health condition, child under 5, low income, or live in a council-priority area, LA Flex may be the better choice. Either way, we've helped over 7,000+ UK households get free A-rated boilers — and we're ready to help you next.

Ready to Find Your Path to a Free Boiler?

Frequently Asked Questions

Can I apply for both schemes?

No, you'll only need one — we'll guide you to the right one based on your situation.

Is LA Flex faster than ECO4?

It depends on the council. Some local authorities approve LA Flex cases quickly; others may take longer.

Which scheme covers more of the cost?

Both schemes can fully cover the boiler and installation cost — provided you meet the specific criteria.

Still Unsure Which Scheme You Qualify For?

Don't worry — our eligibility checker will guide you to the right scheme based on your specific circumstances.