Barnet · EN5 · Greater London
Get a fixed-price quote for a new boiler online and have a Gas Safe registered engineer fit it at your Barnet home – often as soon as the next day. Replacement gas boilers in Barnet cover combi swaps, system boilers for larger houses, 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
In Barnet the type of house drives the price. A flat in Golders Green and a six-bedroom house in Totteridge need very different boilers, and flue routes, cylinder choice, pipework condition and controls all move the final figure. 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 Barnet 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.
Barnet has some of north London’s biggest houses and some of its oldest. These are the jobs we fit most, and what works for each.
These homes have character to protect. We choose a flue route that is discreet and keep original features intact while upgrading the system.
A system boiler with a cylinder handles multiple bathrooms and big households without a drop in hot water pressure.
Straight combi swaps with new controls often give the biggest saving for the least disruption in these 1930s homes.
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
Barnet is north London’s largest borough by population, stretching from the Finchley Road suburbs through Golders Green and Hendon to Edgware, Mill Hill and the green fields around Totteridge and Monken Hadley. Arts and Crafts houses in Hampstead Garden Suburb sit near Edwardian terraces in Finchley and 1930s semis that make up much of Edgware and Mill Hill.
A lot of Barnet’s houses are large, older or protected, so boiler choice involves more than output. When we price boiler replacement service in Barnet we survey the pipework, look at where the flue can exit and check hot water demand, then give you a fixed price.
With your boiler and date picked online, a Gas Safe registered engineer arrives to remove the old unit, fit and commission the new boiler, register the warranty and notify Building Control, so everything is signed off before they leave the house.
Barnet spans Hampstead Garden Suburb, Finchley’s Edwardian terraces and the green edges of Totteridge, so every job starts with the property. Here is what we see most.
Barnet water is very hard, usually well above 200ppm. We check your postcode and fit a scale reducer with a combi boiler to protect the heat exchanger.
Strict design controls apply across much of the Suburb. We plan flue positions that meet the rules and flag any consent needed at survey.
Terraces often have a boiler in a cramped kitchen cupboard. We fit a compact condensing boiler and tidy up old pipework while we are there.
Big detached homes usually need a system boiler with an unvented cylinder, so several bathrooms get strong pressure at once.
Interwar semis suit a straightforward combi swap in most cases. We check mains flow first, and add a filter and modern controls.
Blocks around Golders Green and Hendon may have lease rules and shared flues. We check the building’s requirements before we recommend a boiler.
Our Gas Safe engineers cover the whole borough, from Chipping Barnet and Finchley to Edgware, Mill Hill and Golders Green. See all our service areas.
Red pin: Barnet town centre. Green pins: nearby towns we cover — tap a pin to see how far each town is from Barnet. The shaded circle shows roughly 8 miles around Barnet.
We also cover London as a whole, plus neighbouring Enfield (about 6 miles), Harrow (about 9 miles) and Ealing (about 12 miles).
Often as soon as the next day, depending on the boiler you choose and engineer availability in the EN5 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 EN5 postcodes plus EN4, N2, N3, N12, N20, NW4, NW7, NW11 and HA8, including Finchley, Edgware, Mill Hill, Hendon and Golders Green, and nearby areas such as Enfield, Harrow and Potters Bar. As part of a nationwide network of Gas Safe engineers, we also cover the wider area.
Barnet tap water is very hard, usually above 200ppm. You can check your postcode on your supplier’s hardness checker. Where it is over 200ppm, we fit a scale reducer with a combi boiler, in line with Building Regulations guidance.
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 under Building Regulations, and your Gas Safe registered engineer notifies Building Control, so you receive a compliance certificate. Planning permission is not normally needed for a like-for-like swap, but Hampstead Garden Suburb has strict controls over external changes, so check with Barnet Council before changing a visible flue.
Yes. Boiler finance in Barnet 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 Barnet and book the installation date that suits you – all online, in a few minutes.