Insulation Grants Northern Ireland 2026

Insulation Grants in Northern Ireland: Less Than GB, But Affordable Warmth Is Genuinely Good

Northern Ireland doesn't have access to the main GB schemes: no ECO4, no Great British Insulation Scheme. That's a real limitation, and it means NI homeowners have fewer options than their counterparts in England, Scotland, or Wales.

But for households that do qualify for the Affordable Warmth scheme, the support is actually quite comprehensive. And for everyone else, NISEP provides some energy company-funded routes. Here's the full picture.

Affordable Warmth: The Main Scheme for Lower Incomes

Affordable Warmth is administered by the Northern Ireland Housing Executive and is the primary source of free insulation for lower-income homeowners and private renters in NI.

What Affordable Warmth can fund:

• Cavity wall insulation
• Loft insulation
• Solid wall insulation (in some cases)
• Draught proofing
• Heating controls and thermostats
• Replacement heating systems (including oil boilers and, sometimes, heat pumps)

The scheme covers a reasonable package of measures. This isn't a "we'll top up your loft insulation" offering. For qualifying households, Affordable Warmth can genuinely transform a draughty, expensive-to-heat home.

Affordable Warmth Eligibility

The £23,000 income threshold is lower than the equivalent in Scotland (£36,000 for Warmer Homes Scotland) and stricter than the means-tested benefit criteria used in England and Wales. That means fewer NI households qualify. It's a genuine policy gap.

To apply or check eligibility, contact the Northern Ireland Housing Executive on 03448 920 900 or visit your local Housing Executive office.

NISEP: Energy Company Obligation for NI

NISEP (Northern Ireland Sustainable Energy Programme) is NI's nearest equivalent to ECO4, overseen by the Utility Regulator, funded by a levy on electricity bills, and delivered on the ground by a set of approved Scheme Managers (not by your retail electricity supplier directly).

NISEP is less well-publicised than Affordable Warmth, and the available measures vary year to year depending on which Scheme Managers are active. To find out what's currently on offer, check the Utility Regulator's annual NISEP Scheme Managers list or call the NI Energy Advice service on 0800 111 4455: they'll point you at the scheme manager offering the measures you need.

Heads-Up: A New NI Framework Is Coming

In February 2026 the Department for Communities launched the Warm Healthy Homes Strategy, a 10-year framework with a £150m Warm Healthy Homes Fund. Funding from the new programme is expected to start from March 2027, and existing schemes (including Affordable Warmth) are expected to be restructured under it. If your insulation work isn't urgent, it may be worth keeping an eye on the new framework before committing.

Housing Executive Grants for Tenants

If you're a Housing Executive tenant (Northern Ireland's social housing provider), insulation improvements are generally the Housing Executive's responsibility rather than yours. Raise any insulation or draughting issues with your local Housing Executive office. They have maintenance and improvement programmes that can address these.

Private landlords in NI can sometimes access grants to improve the energy efficiency of their rental properties, though the landscape here is more limited.

What GB Schemes Are Missing in NI

For context, here's what's available in Great Britain that NI doesn't have equivalent access to:

The Financial Case for Insulating in NI

Even without the GB schemes, insulation makes strong financial sense in NI, arguably more so than in much of GB, because so many NI homes heat with oil.

Better insulation means your oil boiler (or any heating system) runs less. A well-insulated home might use 30–40% less heating fuel. At current oil prices, that can mean savings of £400–£700 per year on a typical detached house. Cavity wall insulation typically costs £500–£1,000; loft insulation £300–£600. The payback periods are short.

What to Do Next

1. Check Affordable Warmth first: if your income is below £23,000, call the Housing Executive on 03448 920 900. It's worth 10 minutes to find out.
2. Contact your electricity supplier about current NISEP measures.
3. If you're a Housing Executive tenant, raise insulation issues with your housing officer.
4. If you don't qualify for any scheme, get quotes from reputable installers and consider whether the payback makes sense. For cavity wall and loft insulation, it usually does within 2–3 years.

The funding landscape in NI genuinely needs improvement, and it's worth making your views known to your MLA. In the meantime, don't let the lack of GB-equivalent schemes stop you from exploring what is available. Affordable Warmth in particular is worth checking even if you're not sure you qualify.