Elite Energy News

New & Replacement Boiler Costs in the UK (2026 Guide)

7th May 2025

ASHP ECO4 Funding Guides

How much does a new boiler cost in the UK in 2026?

In 2026, the cost of a new or replacement boiler in the UK typically ranges between £2,000 and £4,500, depending on the type of boiler, the size of your property, and the complexity of the installation. For standard combi boiler installations, prices usually start from £2,000, while system and conventional boiler replacements may cost more due to the additional components and labour required.

Boiler types and costs

There are three main types of boilers:

Combi Boilers – Ideal for smaller homes. No separate hot water cylinder needed. Prices start from £2,000 including installation.
System Boilers – Suitable for medium to large homes with higher hot water demand. Expect to pay £2,500–£3,500.
Conventional Boilers (also known as regular or heat-only) – Best for large homes with existing hot water tanks. Prices can range from £3,000–£4,500 including the cost of replacing tanks and pipework if needed.

What affects the cost of a new boiler?

Several factors influence the overall cost of installing a new boiler:

Boiler type and brand – Premium brands cost more than budget options.
Installation complexity – Moving the boiler location or upgrading the system adds to labour and parts.
Property size and heating demand – Larger homes may require higher output models.
Additional components – Smart thermostats, filters, and system flushes can add a few hundred pounds.

Are boiler grants available?

Yes, under the ECO4 scheme, eligible households can access free boiler grants if they meet certain criteria such as low income or receiving qualifying benefits. These grants are designed to help improve energy efficiency and reduce heating bills.

Learn more about Free Boiler Grants →

Consider upgrading to an Air Source Heat Pump?

While a new boiler may seem like the easiest option, now is a great time to consider a low-carbon alternative. Air source heat pumps are highly efficient and environmentally friendly, and they could significantly reduce your long-term heating bills. With government funding available through the Boiler Upgrade Scheme (BUS) and ECO4, switching to a heat pump can be more affordable than you think—especially if your current system is outdated or inefficient.

Explore Air Source Heat Pumps →

Get a free boiler quote

We offer free consultations and no-obligation quotes. Whether you’re replacing an old boiler or exploring renewable alternatives, our expert team is here to help you make the right decision for your home.

Call us on 0800 246 1676
Get your free quote now →