Wales Net Zero homes incentives 2026
If you live in Wales and are considering a heat pump, solar panels, or better insulation, the funding landscape in 2026 is split between a UK-wide grant and a devolved Welsh scheme. Understanding which one applies to your circumstances is the first step to avoiding a costly mistake.
Wales net zero incentives 2026 offer up to £8,000 through the Nest scheme for low-income households, plus a flat £7,500 heat pump grant from the UK-wide Boiler Upgrade Scheme. You cannot combine both, so choose based on your income.
- Nest scheme offers up to £8,000 for heat pumps and insulation.
- Boiler Upgrade Scheme gives £7,500 flat for heat pumps in Wales.
- Nest eligibility requires means-tested benefits and low income.
- BUS is income-blind and available to any Welsh homeowner.
- Apply through a certified installer for BUS or Nest partner for Nest.
The Welsh Government offers a mix of grants and 0% loans that can reduce the upfront cost of a heat pump and insulation package by up to £8,000 compared to relying solely on the UK-wide Boiler Upgrade Scheme (Welsh Government Nest scheme guidance, 2026). The UK-wide Boiler Upgrade Scheme gives you a flat £7,500 for a heat pump regardless of your income (DESNZ Boiler Upgrade Scheme statistics, 2026).
The main incentive package Nest scheme
The Nest scheme is the Welsh Government’s flagship home energy-efficiency programme. It provides free energy-efficiency upgrades such as loft insulation, cavity-wall insulation, draught-proofing, and heating controls to eligible low-income households. In addition, Nest can offer a partial or full contribution toward the cost of a heat pump or solar photovoltaic (solar PV) panels.
Eligibility is based on household income, property type, and receipt of certain means-tested benefits. The scheme is administered by the Welsh Government and delivered through local partner organisations. Nest is not a cash payment. Instead, the Welsh Government arranges and pays for the approved work directly through its delivery partners (GOV.WALES Nest scheme eligibility page, 2026).
The Boiler Upgrade Scheme in Wales
The UK-wide Boiler Upgrade Scheme (BUS) offers a flat £7,500 grant for an air-source heat pump or ground-source heat pump, regardless of household income, for properties in Wales. This is the same amount available in England and Scotland under the same scheme.
The grant is applied as a discount to the installation invoice, not as a cash rebate paid to you. The installer must be certified under the Microgeneration Certification Scheme (MCS) for you to qualify. The BUS does not cover insulation, solar panels, or heating controls (DESNZ Boiler Upgrade Scheme guidance, 2026).
How Nest and the BUS work together
You cannot receive both a Nest contribution and the BUS grant for the same measure in the same property in the same year. If you have already received a BUS grant for a heat pump, you cannot apply for Nest to cover the same heat pump. However, you may switch between schemes if your circumstances change, for example, if you move house or your income changes.
Nest covers insulation and heating controls first. The BUS only covers heat pumps. This means the two schemes complement different stages of a retrofit. A typical sequence would be to use Nest to improve the building fabric and heating controls, then later apply for the BUS to install a heat pump (GOV.WALES Nest scheme rules, 2026; DESNZ BUS terms and conditions, 2026).
Quick numbers
| Incentive | Maximum value in 2026 | Key condition |
|---|---|---|
| Boiler Upgrade Scheme (air-source heat pump) | £7,500 | Installer must be MCS-certified; no income limit |
| Boiler Upgrade Scheme (ground-source heat pump) | £7,500 | Installer must be MCS-certified; no income limit |
| Nest scheme (full package for eligible household) | Up to £8,000 total (insulation, heating controls, heat pump contribution) | Household must be on qualifying benefits; property EPC rating E, F, or G |
| Nest scheme (partial contribution for heat pump) | Typically £2,500–£5,000 toward heat pump cost | Must already have Nest insulation work completed; income and benefit criteria apply |
Source: DESNZ BUS guidance, 2026; GOV.WALES Nest scheme value page, 2026.
How to check if you are eligible for a Nest grant
Eligibility for the Nest scheme requires the property to be in Wales, have an Energy Performance Certificate (EPC) rating of E, F, or G, and the household must include a person receiving a qualifying benefit. Qualifying benefits include Pension Credit, Child Tax Credit (with income below a threshold), Universal Credit (with income below a threshold), Working Tax Credit, Income Support, income-based Jobseeker’s Allowance, and income-related Employment and Support Allowance.
The property must be owner-occupied or privately rented (with landlord permission). Social housing is covered under separate Welsh Government schemes and is not eligible for Nest. You can check your EPC rating online via the gov.uk EPC register. If you don’t have an EPC, Nest may arrange an assessment as part of the application process (GOV.WALES Nest eligibility criteria, 2026).
Verifying your installer MCS certification
For the Boiler Upgrade Scheme, the installer must be certified under the Microgeneration Certification Scheme (MCS) and appear on the MCS Installer Database. If your installer is not MCS-certified, the BUS grant is void and you will not receive the £7,500 discount.
For Nest scheme work, installers are selected by the Welsh Government’s delivery partners and must hold relevant accreditations such as TrustMark, Gas Safe Register for gas work, or NICEIC for electrical work. You do not need to find your own installer for Nest work.
Before signing a contract for a BUS-funded heat pump, check the MCS register online at mcscertified.com. Ask the installer for their MCS certificate number and verify it on the register (MCS Find an installer page, 2026; DESNZ BUS installer requirements, 2026).
What the £7,500 grant actually covers
The Boiler Upgrade Scheme grant of £7,500 applies to the total cost of a heat pump installation. This includes the heat pump unit, labour, and any necessary pipework or electrical upgrades required to make the system operational.
The grant does not cover insulation, new radiators, or a hot water cylinder replacement unless those are directly required for the heat pump to operate efficiently. For example, if your existing radiators are undersized for a low-temperature heat pump system, you may need to pay for larger radiators separately. The grant is paid to the installer, who deducts it from your invoice. You pay the difference between the total installation cost and the £7,500 grant (DESNZ BUS eligible costs, 2026).
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Frequently Asked Questions
The Nest scheme is the Welsh Government's flagship energy-efficiency programme, offering free or subsidised insulation, heating controls, heat pumps, and solar panels. It is administered by the Welsh Government and delivered through local partner organisations (GOV.WALES Nest scheme eligibility page, 2026).
The Boiler Upgrade Scheme gives a flat £7,500 grant for an air-source or ground-source heat pump in Wales, regardless of your household income. This is the same amount as in England and Scotland (DESNZ Boiler Upgrade Scheme statistics, 2026).
You qualify if your household has a low income and you receive certain means-tested benefits, such as Universal Credit or Pension Credit. The scheme is for owner-occupiers or private tenants in Wales (GOV.WALES Nest scheme eligibility page, 2026).
No, you cannot combine both grants for the same measure. Nest is designed for low-income households, while the Boiler Upgrade Scheme is income-blind. You must choose one scheme for your heat pump installation.
Apply by calling the Nest helpline or visiting the GOV.WALES website. The Welsh Government arranges and pays for approved work directly through its delivery partners, so there is no cash payment to you (GOV.WALES Nest scheme eligibility page, 2026).
