What happens when you need your gas boiler replaced?

Gas boilers are the most popular, affordable, and common type of boiler in the UK. They’re the go-to home heating solution for millions of families across the country, but like any product, they have a life expectancy.

Knowing a little about gas boilers will help you make the right decision when choosing your new boiler – from choosing between a combi or a system, to finding the right installer and paying the right price.

What are gas boilers?

First thing’s first, gas boilers are connected to the mains network. This means that the gas they use to heat your home and hot water comes directly through underground pipes, meaning zero hassle for you.

Gas boilers work by heating up hot water, which is either drawn from the mains as well or from a water tank, and then transferring this to your taps and showers or your radiators. They’re one of the most efficient and cost-effective ways to keep your home warm.

homeowner and installer with gas boiler
homeowner with gas boiler

Gas boiler replacement cost

The cost of your gas boiler replacement will vary based on a few things. Firstly – you need to decide on the boiler itself, plus which type and size you need. Depending on whether you need a small combi or a big system boiler, you’re looking at anywhere from £500 to £3,000.

Getting it installed is likely to cost between £1,000 and £3,000, with the price depending mostly on what your current boiler setup is. Replacing a combi with a combi, for example, will be cheaper than switching to a completely different type and size of boiler.

Why choose Worcester Bosch

Trustpilot logo

Rated Excellent

Join the thousands of other happy customers who rate us excellent on Trustpilot.

Bosch logo

Part of the Bosch group

All products are manufactured with Bosch levels of quality and reliability as standard.

12 year guarantee

Guaranteed better

Receive up to a 12 year guarantee with our Greenstar 8000 boiler when installed by a Worcester Accredited Installer

Which gas boiler is right for me?

Our comprehensive range of gas boilers are famous for their quality, reliability, and efficiency. With more than 25,000 five-star reviews on TrustPilot, you can trust Worcester Bosch to look after your home. Wherever you live, we’ve got the perfect gas boiler for you.

See our range of gas boilers

Combi gas boilers

Combi gas boilers are the smallest and normally most affordable of the modern boiler solutions. They consist of a single boiler unit which provides hot water on demand, and you don’t need to worry about where to fit a water tank.

combi gas boiler
system gas boiler

System gas boilers

System gas boilers are better suited to a slightly larger home. If you live in a medium house (one with a couple of bathrooms), then you may be better off with a system boiler. As it stores hot water in a tank for later use, it can cope with a higher demand.

Regular gas boilers

Regular gas boilers, which you may know as ‘traditional’ or ‘conventional’ boilers, are the workhorse of the group. Whilst they tend to be found in older homes, where their two water tanks could easily fit, they can provide the most amount of hot water at once – even in very large or busy houses.

regular gas boiler

Find a local installer

Each heating system needs custom designing. Find and contact a Worcester Accredited Installer in your area to book a home visit and get a free quote.

Find the right boiler for you

Our Find a New Boiler tool is the easiest way to find and compare Worcester products suitable for your home heating requirements and only takes a few minutes.

Find your perfect new boiler