Boilers
Gas Boiler Ban: Can You Still Fit a New Gas Boiler?
There is no ban on replacing a gas boiler in an existing home in England. What the 2027 new-build rules change, and how heat pumps compare.
Published 3 October 2026
Yes. If you live in an existing home in England, you can still replace a gas boiler with a new gas boiler, and you can keep repairing the one you have. There is no law that stops you, and as of October 2026 the government has not set a date when that will change.
The confusion comes from three things: an old proposal to phase out new gas boilers from 2035, new rules for newly built homes, and grants that only pay for heat pumps. This guide untangles them and gives a fair comparison of heat pumps and gas boilers.
Is there a gas boiler ban in the UK?
Not for existing homes. The government’s Warm Homes Plan, its main programme for home heating and energy efficiency, relies on grants and loans to encourage low carbon heating rather than a deadline. It contains no ban on gas boilers in existing homes. Energy Secretary Ed Miliband has publicly confirmed there are no plans for a ban, saying he was wary of forcing people off gas boilers while cheaper alternatives cannot be guaranteed.
What happened to the 2035 date?
The previous government proposed phasing out the installation of new fossil fuel boilers from 2035. That was a policy ambition, never a law, and the current government has said it has no plans for a ban. You may still see “2035 ban” headlines and adverts, but no law sets a 2035 deadline for replacing a gas boiler in an existing home. Policy can change, so check gov.uk if you are reading this long after October 2026.
What does the Future Homes Standard change?
The Future Homes and Buildings Standards are updates to the Building Regulations for new homes and buildings in England. They were published on 24 March 2026 and come into force on 24 March 2027, with transitional arrangements for developments already submitted and started. Under these standards, new homes will have low carbon heating, high levels of energy efficiency and solar panels by default. In practice, that means heat pumps rather than gas boilers in most new builds.
These rules do not apply to replacing a boiler in a home that already exists.
What rules apply when you replace a gas boiler today?
Replacing a gas boiler is still regulated, just not banned. In England:
- the work must be done by a Gas Safe registered engineer
- the new boiler must be a condensing boiler with an ErP efficiency of at least 92%
- the system needs a timer and room thermostat, and a new combi boiler also needs one extra energy saving measure, such as weather compensation, load compensation, smart controls with automation and optimisation, or flue gas heat recovery
- the installation must be notified under Building Regulations. Your engineer does this through Gas Safe Register, and you receive a compliance certificate
A good engineer will cover all of this as part of the quote.
Heat pump vs gas boiler: how do they compare?
Neither is right for every home. Here is a fair side-by-side, without the sales pitch.
| Gas boiler | Air source heat pump | |
|---|---|---|
| How it works | Burns mains gas to heat water | Uses electricity to move heat from outside air into your heating |
| Efficiency | New condensing boilers must be at least 92% ErP | Delivers more heat than the electricity it uses, but efficiency drops in very cold weather |
| Radiators | Runs at higher temperatures, so existing radiators usually suit | Works best at lower flow temperatures, so some radiators may need upsizing |
| Hot water | A combi heats water on demand with no cylinder | Needs a hot water cylinder, so you need cupboard space |
| Outdoor space | Needs only a flue terminal on an outside wall or roof | Needs an outdoor unit with space and airflow |
| Running costs | Depend on the gas price | Depend on the electricity price and tariff, and how well the home is insulated |
| Who installs it | A Gas Safe registered engineer | An MCS certified installer, needed for the grant |
| Grant | None for a gas boiler | £7,500 through the Boiler Upgrade Scheme, if eligible |
| Disruption | A like-for-like swap is usually quick | Usually a bigger job, with pipework, cylinder and possible radiator changes |
Since May 2025, many air source heat pumps in England can be installed under permitted development without a planning application, including within a metre of the boundary, provided they meet the size and MCS conditions. Listed buildings and some other sites still have extra rules.
Which suits your home?
As a rough guide:
- A flat or small home with no outside space or cupboard room is usually better suited to a gas combi boiler.
- A well insulated house with outdoor space and room for a cylinder is worth assessing for a heat pump, especially with the £7,500 grant.
- A boiler that has failed in winter is usually fixed fastest with a replacement gas boiler, because a heat pump needs a heat loss survey and more planning.
If you are leaning towards a heat pump, ask an MCS certified installer for a heat loss survey, as they will need to handle the grant. Our guide to boiler grants in 2026 explains who qualifies. If you are not sure what system you have now, see combi vs system vs conventional boilers.
Should you wait before replacing your gas boiler?
There is no regulatory reason to wait. A new gas boiler fitted today can be used for the rest of its working life. The better question is whether your current boiler is worth repairing. If it is old, unreliable or hard to get parts for, replacing it now avoids a breakdown in the coldest week of the year.
When you are ready, we’ll put you in touch with a local Gas Safe registered engineer who will quote for the boiler you choose plus the installation. For a no-obligation quote, call 07360 268948 or WhatsApp photos of your current boiler, or visit our boiler replacement page.