Energies
Free Boiler Scheme UK 2026 — Grants and Eligibility Explained
How to get a free boiler or heating system in the UK. ECO 4 eligibility, what's covered, and how to apply for free boiler grants.
There are legitimate schemes for free boiler replacements, but they have specific criteria. Here’s how they actually work.
How Free Boilers Work
The ECO 4 Scheme
| Feature |
Details |
| What it is |
Energy Company Obligation |
| Funded by |
Major energy suppliers |
| What it covers |
Heating, insulation, renewables |
| Cost to you |
Free if fully eligible |
| Runs until |
March 2026, then successor |
What Can Be Free
| Measure |
Covered? |
| New gas boiler |
Yes (if existing inefficient) |
| First-time central heating |
Yes |
| Oil boiler replacement |
Yes |
| Electric storage heaters |
Yes |
| Air source heat pump |
Yes |
| Insulation |
Yes |
Eligibility Criteria
You Need to Meet Both
| Criteria 1: Income/Benefits |
Criteria 2: Property |
| Be on qualifying benefits |
Home EPC rating D-G |
| OR be in a low-income area |
OR have inefficient heating |
| (via LA Flex) |
|
Qualifying Benefits
| Benefit |
Qualifies? |
| Pension Credit |
Yes |
| Income Support |
Yes |
| Income-based JSA |
Yes |
| Income-related ESA |
Yes |
| Universal Credit |
Yes |
| Child Tax Credit (low income) |
Yes |
| Working Tax Credit |
Yes |
| Housing Benefit |
Yes |
Property Requirements
| Requirement |
Details |
| EPC rating |
D, E, F, or G preferred |
| Current boiler |
Usually 10+ years old |
| Boiler type |
Gas, oil, electric, LPG |
| Broken boiler |
Not required but helps |
| Ownership |
Owner-occupied or private rental (with permission) |
LA Flex (Local Authority Flexibility)
What It Is
| Feature |
Details |
| Purpose |
Extend eligibility beyond benefits |
| Who decides |
Your local council |
| Who can qualify |
Low income, vulnerable, fuel poor |
| How to access |
Council referral to scheme |
LA Flex Criteria (Varies by Council)
| Typical Criteria |
Examples |
| Low income |
Below threshold for area |
| Health condition |
Cold makes condition worse |
| Vulnerable |
Elderly, disabled |
| Fuel poverty |
High proportion of income on heating |
Contact your local council’s housing or energy team.
What You’ll Get
Boiler Replacement
| Current System |
What You May Get |
| Old gas boiler (10+ years) |
New A-rated gas boiler |
| Back boiler |
Modern combi or system |
| Old oil boiler |
New oil or heat pump |
| Storage heaters |
New efficient heaters or heat pump |
What’s Included
| Component |
Typically Covered |
| Boiler unit |
Yes |
| Installation |
Yes |
| Flue |
Yes |
| Basic controls |
Yes |
| TRVs |
Often |
| System flush |
Often |
| Pipework modification |
Most |
| Moving radiators |
Sometimes |
What’s Not Always Covered
| Item |
Coverage |
| New radiators |
May be extra |
| Major pipework changes |
May have contribution |
| Gas supply upgrades |
Usually yes, sometimes partial |
| Asbestos removal |
Varies |
How to Apply
Option 1: Through Your Energy Supplier
| Step |
Action |
| 1 |
Contact your energy company |
| 2 |
Ask about ECO 4 eligibility |
| 3 |
Provide benefit/income evidence |
| 4 |
Survey arranged |
| 5 |
Work scheduled if eligible |
Option 2: Through an ECO Installer
| Step |
Action |
| 1 |
Find ECO-accredited installer |
| 2 |
Provide initial details |
| 3 |
They check eligibility |
| 4 |
Home survey |
| 5 |
Work completed |
Option 3: Through Your Local Council
| Step |
Action |
| 1 |
Contact council housing team |
| 2 |
Ask about LA Flex referrals |
| 3 |
Council assesses eligibility |
| 4 |
Referred to scheme |
| 5 |
Survey and work arranged |
Finding Legitimate Installers
How to Check
| Verification |
How to Check |
| TrustMark registration |
trustmark.org.uk |
| PAS 2030 certification |
Ask to see certificate |
| MCS certification |
For heat pumps |
| Reviews |
Check Google, Trustpilot |
Red Flags
| Warning Sign |
What It Means |
| Large upfront payment |
ECO work is free |
| Pressure to sign |
Legitimate installers don’t pressure |
| Cold calling |
Be very cautious |
| No survey needed |
Always need assessment |
| Guaranteed free boiler |
Must assess eligibility first |
The Survey Process
What Happens
| Step |
What They Check |
| 1 |
Confirm benefit eligibility |
| 2 |
Assess current heating system |
| 3 |
Check property EPC |
| 4 |
Photograph existing setup |
| 5 |
Determine appropriate measures |
Survey Outcomes
| Result |
Next Step |
| Fully eligible |
Work scheduled (free) |
| Partially eligible |
May have contribution required |
| Not eligible |
Try other schemes |
After Installation
What to Expect
| Feature |
Details |
| Warranty |
Usually 2-5 years |
| Completion certificate |
Should receive |
| Building regs sign-off |
Installer handles |
| Gas safe certificate |
Must be provided |
Your Responsibilities
| Responsibility |
Details |
| Annual servicing |
Keep boiler maintained |
| Report issues |
Contact installer/warranty |
| Keep documents |
For warranty claims |
Alternative Heat Options
Heat Pumps via ECO 4
| Feature |
Details |
| Available |
Yes, if suitable |
| Assessment |
Installer recommends |
| Cost |
Free if eligible |
| Addition |
Boiler Upgrade Scheme may add £7,500 |
Where Heat Pumps Work Best
| Property Type |
Suitability |
| Well-insulated |
Good |
| Newer build |
Good |
| Hard to heat old house |
May need insulation first |
| Off-gas grid |
Excellent alternative |
Scotland, Wales, Northern Ireland
Scotland
| Scheme |
Details |
| Home Energy Scotland |
Grants and loans |
| Warmer Homes Scotland |
Free measures for eligible |
| Contact |
0808 808 2282 |
Wales
| Scheme |
Details |
| Nest |
Free improvements for eligible |
| Contact |
nest.gov.wales |
Northern Ireland
| Scheme |
Details |
| Affordable Warmth |
For qualifying households |
| Contact |
nihe.gov.uk |
Common Questions
“My boiler still works — can I get it replaced?”
| Situation |
Outcome |
| Old but working |
May qualify if inefficient |
| Under 10 years |
Usually won’t qualify |
| Broken |
May help eligibility |
| Needs frequent repairs |
Evidence of inefficiency |
“I’m a tenant — can I get a free boiler?”
| Situation |
Action |
| Private rental |
Landlord permission needed |
| Social housing |
Ask housing association |
| If eligible |
You apply, landlord agrees |
“I don’t receive benefits — can I still qualify?”
| Route |
How |
| LA Flex |
Low income, fuel poverty criteria |
| Council referral |
Contact your local council |
| Self-funded improvement |
Get quotes, not free |
Summary: Free Boiler Checklist
| Step |
Action |
| 1 |
Check if you receive qualifying benefits |
| 2 |
Check your property’s EPC rating |
| 3 |
Contact energy supplier, council, or approved installer |
| 4 |
Have survey conducted |
| 5 |
If eligible, schedule free installation |
Free boilers are genuinely available through ECO 4, but you must meet specific criteria. Apply through official channels and be wary of scams that charge fees for “free” services.
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