Boilers in Wales
Your complete guide to boilers costs, grants, and installers across Wales. Updated for 2026.
Quick Answer
Boilers in Wales cost between £1500 and £3500 (average £2500). Welsh homeowners save around £120 per year, with a payback period of 15 years. ECO4 funded grant available..
Boilers by Welsh Location
Browse boilers costs, grants and installers for your area. Select your region:
South Wales 23 towns
North Wales 18 towns
Boilers Cost Breakdown
Here is what you can expect to pay for boilers in Wales, depending on system size:
| System Size | Cost Range | Annual Saving | Payback |
|---|---|---|---|
| Small | £1500 – £2500 | £120 | 15 years |
| Medium | £2500 – £3500 | £120 | 15 years |
| Large | £3500+ | £120 | 15 years |
All prices include installation and VAT. Actual costs depend on your property, location, and chosen installer.
Boilers Grants in Wales
A government grant of ECO4 funded (eligible homes) is available for eligible installations. Welsh homeowners may also qualify for the Nest scheme or Warm Homes Programme Wales.
Welsh homeowners may be eligible for:
- Nest scheme — Welsh Government-funded energy efficiency improvements for eligible households.
- Warm Homes Programme Wales — Grants for home energy upgrades including boilers.
- ECO4 — Energy Company Obligation funding for low-income and vulnerable households.
Not sure what you qualify for? Get a free eligibility check.
Compare prices from MCS-certified installers across Wales. No obligation, completely free.
Boilers in Wales — FAQ
How much do boilers cost in Wales?
Boilers in Wales typically cost between £1500 and £3500, with an average around £2500. Prices vary by location, system size, and property type.
What grants are available for boilers in Wales?
Yes. The ECO4 funded (eligible homes) grant is available for eligible installations. Use an MCS-certified installer to claim it. Welsh homeowners can also check the Warm Homes Programme Wales for additional funding.
How much can I save with boilers?
Welsh homeowners typically save around £120 per year with boilers, with a payback period of approximately 15 years. Savings depend on your energy usage and system size.
How much CO2 do boilers save?
A typical boilers installation saves around 0.3 of CO2 per year, making a meaningful contribution to reducing Wales's carbon emissions.
Are boilers worth it in Wales?
Yes. With annual savings of £120, a 15-year payback period, and Welsh Government grants available, boilers are a sound investment for most Welsh homes.