Nest Scheme Wales 2026: Free Boilers, Insulation and Heat Pumps

The Nest scheme Wales is the Welsh Government’s primary programme for tackling fuel poverty, offering free energy efficiency improvements including boilers, insulation, and heat pumps to eligible homeowners and private tenants. If your property has an EPC rating of D or below and you receive a means-tested benefit, you could qualify for improvements worth thousands of pounds at no cost. This guide covers the full eligibility criteria, what work is available, and how to apply in 2026.

Who Qualifies for the Nest Scheme in Wales?

The Nest scheme provides free energy efficiency improvements — including boiler replacements, central heating, insulation and heat pumps — to eligible homeowners and private tenants in Wales. To qualify, you must live in a home with an EPC rating of D, E, F or G and either receive a means-tested benefit or have a household income below the scheme’s threshold.

Qualifying benefits include Universal Credit, Pension Credit, Housing Benefit, Income Support, income-based JSA and income-related ESA. If you do not receive these benefits but have a low household income and live in an energy-inefficient property, you may still qualify through the scheme’s broader eligibility criteria. Nest is free to apply for — call 0808 808 2244 and an adviser will check your eligibility over the phone. If approved, a surveyor will assess your home and recommend the most effective improvements. Typical measures are completed within 6–10 weeks.

What Is the Nest Scheme in Wales?

Nest is a Welsh Government-funded energy efficiency programme that has been running since 2011. It provides free advice to all Welsh households and free home energy improvements to those who qualify on the basis of income and property condition. The scheme is managed by British Gas on behalf of the Welsh Government.

The programme operates on a whole-house approach, meaning the assessor looks at the entire property and recommends a package of measures rather than a single improvement. This holistic strategy ensures that each home receives the combination of upgrades that will make the biggest difference to energy performance and comfort.

Since its launch, Nest has improved over 70,000 homes across Wales, delivering average annual energy bill savings of 300 to 600 per household.

Nest Scheme Wales Eligibility Criteria

To qualify for free improvements through the Nest scheme, you must meet both a benefits criterion and a property criterion.

Benefits Requirement

You or someone in your household must receive at least one of the following means-tested benefits.

• Pension Credit (Guarantee or Savings Credit)
• Income Support
• Income-based Jobseeker’s Allowance
• Income-related Employment and Support Allowance
• Universal Credit (with a household income below the relevant threshold)
• Working Tax Credit (with income below 18,725)
• Child Tax Credit (with income below 18,725)
• Housing Benefit
• Council Tax Reduction

Property Requirement

Your home must have an Energy Performance Certificate (EPC) rating of D, E, F, or G. Properties rated C or above are considered to have adequate energy efficiency and do not qualify for Nest improvements. If you do not have a current EPC, the Nest assessor can carry out an assessment to determine your rating.

Additionally, you must own or privately rent your home in Wales. Council tenants and housing association tenants are not eligible for Nest, as their social landlords are responsible for energy improvements.

What Free Improvements Does the Nest Scheme Provide?

The Nest scheme covers a comprehensive range of energy efficiency measures. The exact package depends on your property’s condition and the assessor’s recommendations.

In many cases, a household will receive multiple measures. A common package might include a new boiler, loft insulation top-up, and cavity wall insulation, with a combined value of 5,000 to 8,000.

For properties off the gas grid, Nest can fund the installation of air source heat pumps or other renewable heating systems, which represent a significant investment that most households could not afford independently.

How to Apply for the Nest Scheme Wales

Applying for Nest is straightforward, and the process is managed for you from start to finish.

Step 1: Contact Nest

Call the Nest helpline on 0808 808 2244 (freephone, available in English and Welsh). Alternatively, you can apply through the Nest website or ask a local advice agency to refer you. The helpline is open Monday to Friday, 8am to 8pm, and Saturday, 9am to 5pm.

Step 2: Eligibility Check

An adviser will carry out a phone-based eligibility check, confirming your benefits status, property type, and location. You will need to have details of your current benefits to hand.

Step 3: Home Assessment

If you pass the initial check, a qualified assessor will visit your home to survey the property. They will check insulation levels, inspect the heating system, and assess windows and ventilation. This visit typically takes one to two hours.

Step 4: Improvement Package

Based on the survey, Nest will propose a package of improvements. You will be given a clear explanation of what work will be done, how long it will take, and what disruption to expect. There is no obligation to proceed.

Step 5: Installation

Nest manages the entire installation using approved contractors. Work is typically completed within a few weeks of approval, depending on the measures involved and contractor availability. All work is guaranteed and subject to quality inspections.

Nest Scheme vs ECO4: Which Should Welsh Homeowners Choose?

Welsh homeowners may be eligible for both the Nest scheme and the UK-wide ECO4 programme. Here is how they compare.

In general, Nest tends to provide a more comprehensive whole-house package, while ECO4 may be faster for single measures like insulation. You cannot receive the same measure through both schemes, but you could potentially receive different measures from each.

Free Advice for All Welsh Households

Even if you do not qualify for free improvements, the Nest scheme provides free energy advice to every household in Wales. The helpline advisers can help with the following.

• Understanding your energy bills and switching tariffs
• Identifying which grants and schemes you may be eligible for
• Advice on reducing energy consumption without spending money
• Referrals to other support programmes including the Warm Home Discount and Winter Fuel Payment
• Guidance on benefit entitlements you may not be claiming

This free advice service is available regardless of your income, benefits status, or property rating. Call 0808 808 2244 for impartial guidance.

Other Energy Grants Available in Wales

If you do not qualify for Nest or want to explore additional funding, several other schemes operate in Wales.

• Green Homes Wales – Interest-free loans of up to 25,000 for energy improvements (no income threshold)
• ECO4 – UK-wide supplier-funded scheme for insulation and heating upgrades
• Warm Home Discount – 150 rebate on electricity bills for qualifying benefit recipients
• Boiler Upgrade Scheme – 7,500 towards heat pump installation (available across England and Wales)

Not sure which scheme is right for you? Request a free quote and we can help identify the funding routes available for your specific property and circumstances.

Frequently Asked Questions

Can private tenants in Wales apply for the Nest scheme?

Yes, private tenants can apply for Nest, but they need their landlord’s written consent before any work can be carried out. The landlord must agree to the improvements being installed in their property. Contact the Nest helpline on 0808 808 2244 and they can provide a template consent letter to send to your landlord.

How long does the Nest scheme application take from start to finish?

The typical timeline from initial phone call to completed installation is eight to sixteen weeks. Simple measures like loft insulation can be completed more quickly, while complex installations such as external wall insulation or heat pumps may take longer due to survey requirements and planning considerations.

What if my EPC rating is C or above but I still struggle with energy bills?

If your property is rated C or above, you will not qualify for Nest improvements. However, you can still access free advice through the Nest helpline, and you may be eligible for the Warm Home Discount, Winter Fuel Payment, or Green Homes Wales interest-free loan for further upgrades like solar panels.

Is the Nest scheme available for new-build properties?

No. The Nest scheme is designed for existing properties that need improvement. New-build homes must already meet current Building Regulations energy standards, which means they should achieve at least an EPC B rating. If you have a new-build with unexpectedly high energy bills, contact Nest for free advice on 0808 808 2244.