Sutton · SM1 · Greater London
Get a fixed-price quote for a new boiler online and have a Gas Safe registered engineer fit it at your Sutton home – often as soon as the next day. Replacement gas boilers in Sutton cover combi swaps, system boilers, back boiler removals and full heating upgrades with finance available.
Worcester Bosch Greenstar 4000
Ideal Logic MAX Combi C30
Vaillant EcoFit Pure 830C 30kW
Baxi 830 Combi 2 30kW
Replacement boiler prices in Sutton depend on the home and on the very hard local water. A flat in Sutton town centre, a semi in Wallington and a house in Cheam each need different boilers, and flue, scale protection and controls move the price. Like-for-like combi swaps start from £1,759 fitted, while Worcester Bosch Greenstar 4000 packages start from around £2,450. Every quote you get online is fixed – no surprise extras on the day.
| Installation type | What’s involved | Price from | Time on site |
|---|---|---|---|
| Like-for-like combi swap | Replace an existing combi in the same position, with new flue, filter and controls | £1,759 | 1 day |
| Conventional or system to combi | Remove tanks and cylinder, cap off pipework, fit combi and upgrade gas supply if needed | £2,350 | 1–2 days |
| Back boiler replacement | Remove back boiler and fire, make good, fit new boiler in a new location | £2,795 | 2+ days |
| System boiler with cylinder | Suited to larger homes with multiple bathrooms; new or replacement unvented cylinder | £2,995 | 1–2 days |
| Boiler relocation | Move the boiler to a loft, garage or new room with new gas, flue and condensate runs | £2,250 | 1–2 days |
These are starting prices for a standard installation by a Gas Safe registered engineer; your online quote confirms the exact cost for your home.
Get a new boiler on finance in Sutton from £23.26 a month. As an example, a £1,799 boiler spread over 10 years at 9.9% APR works out at £23.26 per month. Shorter terms, interest-free and buy now, pay later options are also available, all subject to status. See our boiler finance options for the full details.
Sutton’s housing is leafy and mostly family-sized. These are the jobs we fit most and what suits each.
A like-for-like combi swap with scale protection and a filter gives reliable hot water for years in chalk-hard areas.
A compact combi keeps the footprint small. We check the freeholder’s rules and the flue route first.
A system boiler and unvented cylinder keep pressure strong across several bathrooms and busy mornings.
Fill out our simple online enquiry form. We just need a few details about your home to give you quotes for new boilers online.
Select a gas boiler package that fits your specific needs. You have the option to pay up-front, or with instalments on finance.
Next you will be able to choose a convenient boiler installation date. One of our Gas Safe engineers will complete installation of your new boiler.
You can choose from one of our boiler servicing plans, giving you peace of mind and keeping your boiler running smoothly for years to come.
Local boiler installers
Sutton is a quiet south-west London borough on the edge of the North Downs, with a busy high street surrounded by leafy suburbs. Cheam and Carshalton have village-style centres and conservation areas, Wallington and Beddington have rows of 1930s semis and Worcester Park has a mix of Edwardian terraces and newer flats.
Many Sutton homes are family-sized and comfortable, but the chalk landscape gives very hard water that is rough on boilers. When we price new boiler replacement in Sutton we check water, pipework and flue routes together, so the fixed price covers the boiler and the protection it needs.
After you pick your boiler and date online, a Gas Safe registered engineer arrives to remove the old unit, fit and commission the new one, flush and protect the system and notify Building Control, so everything is signed off before they leave.
Sutton is a south-west London suburb with chalk water, leafy village centres and lots of 1930s semis. Here is what we see most.
Sutton sits on chalk, so tap water is very hard. We check your postcode and fit a scale reducer with a combi, plus a magnetic filter to protect the system.
Interwar semis often have a roomy cupboard for a combi swap. We check mains flow first, then add a filter and new controls.
Cheam Village and Carshalton Ponds have conservation areas, so a front-facing flue may need consent. We flag this at survey.
Newer flats need compact combis and flue routes that meet building rules. We check lease and ventilation requirements first.
Older terraces may have original pipework and tight boiler spots. We assess the system and fit a compact condensing boiler.
Higher ground near Belmont and Banstead is cold and exposed. We insulate external condensate pipes so they do not freeze.
Our Gas Safe engineers cover the whole borough, from Sutton and Cheam to Carshalton, Wallington and Worcester Park. See all our service areas.
Red pin: Sutton town centre. Green pins: nearby towns we cover — tap a pin to see how far each town is from Sutton. The shaded circle shows roughly 8 miles around Sutton.
We also cover London as a whole, plus neighbouring Croydon (about 5 miles), Bromley (about 11 miles) and Ealing (about 13 miles).
Often as soon as the next day, depending on the boiler you choose and engineer availability in the SM1 area. Complete the online quote, pick a date that suits you, and if you have no heating or hot water we prioritise your booking.
All SM1 postcodes plus SM2, SM3, SM4, SM5, SM6 and KT4, including Cheam, Carshalton, Wallington, Belmont and Worcester Park, and nearby areas such as Croydon, Epsom and Banstead. As part of a nationwide network of Gas Safe engineers, we also cover the wider area.
Sutton sits on chalk, so tap water is very hard, usually well above 200ppm. You can check your postcode on your supplier’s hardness checker. Where it exceeds 200ppm we fit a scale reducer with a combi boiler, as Building Regulations guidance advises.
Yes. We remove the back boiler and associated fire, make the old flue and pipework safe, and install a modern condensing combi or system boiler in a more suitable position. This usually takes a little longer than a straight swap, and we’ll confirm the timescale before we start.
A boiler replacement is notifiable work under Building Regulations, which your Gas Safe registered engineer notifies for you, with a compliance certificate afterwards. Planning permission is not normally needed for a like-for-like swap, but around Carshalton Ponds and Cheam Village, check with Sutton Council first if a new flue would be visible from the road.
Yes. Boiler finance in Sutton includes interest-free, 9.9% APR and buy now, pay later options, with deposits from £0 – see our boiler finance page. All finance is subject to status.
Yes. Your engineer will safely disconnect, remove and dispose of your old boiler, and any redundant tanks or cylinder if you’re switching to a combi.
All boilers we install come with a manufacturer-backed warranty, typically between 5 and 10+ years depending on the model. Keeping it valid usually means an annual service – our boiler cover plans take care of that for you.
Yes. If your home is off the mains gas network, we can replace an oil or LPG boiler. Oil boilers are fitted by OFTEC registered engineers and LPG boilers by Gas Safe registered engineers with LPG competence. See our oil boiler installation and replacement and LPG boiler installation and replacement pages for more detail.
Tell us about your home, see fixed-price replacement boiler packages for Sutton and book the installation date that suits you – all online, in a few minutes.