New Boiler Costs in the UK: How to Get the Best Deal (and Avoid Overpaying)
If you’re in the market for a new boiler in the UK, you’re probably wondering: How much is this going to cost me – and how can I avoid getting ripped off?
Good news: There are ways to get a reliable boiler installed without burning through your savings.
Whether you’re replacing an old combi, upgrading your heating system, or switching fuels, this guide covers the latest boiler costs in the UK – and how to get the best value for your money.
What’s the Average Cost of a New Boiler in the UK?
As of 2025, here’s a rough breakdown of typical boiler installation costs:
- Combi boiler – £1,800 – £3,000
- System boiler – £2,000 – £3,500
- Regular boiler – £2,000 – £3,200
- Conversion (e.g. regular to combi) – £2,500 – £4,000
Factors that affect the price include:
- The brand and model (Worcester Bosch, Viessmann, Ideal, etc.)
- The complexity of installation
- Location and installer rates
- Whether you need new pipework, radiators, or smart controls
💡 6 Smart Tips to Get the Best Deal on a New Boiler
1. Always Get 2–3 Quotes
Don’t settle for the first quote you receive. Prices can vary by hundreds of pounds between installers.
Use platforms like Heatable, BOXT, or local independent engineers to compare offers.
2. Avoid British Gas (Seriously)
British Gas is known for significantly higher boiler installation costs—often £500–£1,000+ more than independent or online installers for the exact same boiler.
You’re largely paying for the brand name, not necessarily better service or products.
3. Check for Government Grants or Eco Schemes
If you’re on certain benefits or your boiler is inefficient, you may qualify for funding under schemes like:
- ECO4 (Energy Company Obligation)
- Boiler Upgrade Scheme (for heat pumps)
These can reduce the cost dramatically or even make your boiler free.
4. Use Fixed-Price Online Installers
Companies like Heatable and BOXT offer fixed-price quotes based on a short survey. No hidden fees, and often next-day installation. They’re usually much cheaper than traditional routes.
5. Consider Finance Options
If paying upfront isn’t ideal, look for 0% APR finance offers or low-interest monthly plans. These are commonly offered by online installers and can make the cost more manageable.
6. Stick to Trusted Brands
Going for a cheap, no-name boiler may save money short term, but you’ll pay for it in reliability and maintenance. Stick to well-reviewed brands like:
- Worcester Bosch
- Viessmann
- Ideal
- Vaillant
🔧 Final Word: Get a Boiler That Works For You, Not Against Your Budget
A new boiler is a big investment, but it doesn’t have to break the bank.
By comparing quotes, avoiding overpriced providers like British Gas, and exploring modern online installers, you can get high-efficiency heating at a price that makes sense.
Keep it simple, do your research, and don’t be afraid to ask installers questions—they’re working for you, after all.
