Sheffield

BoxHeat fits new gas boilers across Sheffield from £1,799 fitted. You get a fixed price online, choose your boiler and a date, and a Gas Safe registered engineer fits it. There's no survey or sales visit first.

Boiler installation in Sheffield at a glance

• Combi boilers from £1,799 fully fitted
• Your price online, with no home survey or sales visit
• Your installation date, chosen when you book
• Most boiler swaps done in a day, or up to 2 days when converting to a combi
• Manufacturer warranties up to 12 years, depending on the boiler model, registered for you

Prices correct in October 2026, for a standard like-for-like replacement. They include your new boiler, removal of the old one, a chemical system flush, a magnetic system filter and installation by a Gas Safe registered engineer. See what's included in a boiler installation for the full list.

If your home needs extra work, such as a conversion or moving the boiler, it's included in your quote, so you see the total before you book. Monthly finance is available, subject to status, and our guide to how much a new boiler costs explains what affects the price.

The right boiler depends on how your household uses hot water, not just the size of your home:

• A combi heats water as you use it, so there's no cylinder or loft tank. Larger, more powerful combis can supply a bigger home with two bathrooms, as long as your mains water pressure and flow can keep up.
• A system boiler works with a hot water cylinder and suits busier homes where several showers often run at once.
• A regular boiler keeps your cylinder and loft tanks. If your cylinder is in good order, a like-for-like swap is often the simplest option, and it can be priced online.

We fit boilers from Worcester Bosch, Viessmann, Ideal, Baxi and Glow-worm, and your quote recommends models and outputs to suit your home. Switching from a regular, system or back boiler to a combi can be priced online too, and our guide to converting to a combi explains what's involved.

If you need a full heating system replacement or work involving a hot water cylinder, call us on 020 4614 2422 to discuss your installation. These jobs need to be assessed individually, so we can't give an instant online price.

Sheffield relies on gas more than most places. In the 2021 Census, 79% of the city's 232,000 households heated their home with mains gas only, against 74% across England. Its homes are older than average too: 40% were built before 1945.

If your home is one of the older ones, a few things are worth knowing:

• Older heating systems. You may still have a cylinder and loft tanks, or a back boiler behind a gas fire. You can switch to a combi online and free up the space, or call us to discuss keeping a hot water cylinder. Our back boiler replacement guide covers your options.
• Where the flue can go. A flue has to sit a set distance from windows, doors and neighbouring property. Where houses are close together, that can limit where a new boiler goes, so your engineer checks the position before fitting.
• Years of sludge. Older pipework and radiators can hold sludge that clogs a new boiler, which is why every installation includes a chemical flush and a magnetic filter.

There's good news on water. Yorkshire Water classes Sheffield's supply as soft (2024), so limescale building up inside a boiler isn't much of a concern here, and most homes don't need extra limescale protection.

The typical Sheffield home used about 10,450 kWh of gas in 2024, a little above the England figure of 9,880 kWh (DESNZ). When a home uses more gas than most, an efficient boiler and good controls make more of a difference.

Not every home here has a boiler to replace. About 2% of Sheffield households, including some in council blocks, get their heating from a district or communal heat network instead. If that's you, your landlord or the network operator looks after your heating.

We also cover Rotherham and Barnsley, Doncaster, Leeds and the rest of the UK. Enter your postcode when you get your quote to confirm we cover your address.

• Rated 5.0 on Google. One customer wrote: "Ordered a boiler online and had it fitted within the same week. Super fast, efficient and professional service." (Laura, Google review)
• A price you can see first. Your quote shows the full price before you book, with no survey or sales visit.
• Warranty registered for you. Manufacturer warranties run up to 12 years, depending on the boiler model.
• Spread the cost. Monthly finance is available, subject to status.

Answer a few questions about your home online and you'll see your fixed price. Choose your boiler and an installation date, then send us a few photos of your boiler, the area around it and the flue so we can check everything matches.

On the day, expect dust sheets and a few hours without heating or hot water while the gas and water are turned off. A Gas Safe registered engineer fits and commissions your new boiler, shows you how the controls work and registers your warranty.