Call us 24 Hours a day
Call us 24 Hours a day Show Navigation
Contact Us

The 24 Hour Boiler Repairs call centre is open right around the clock. Our team of friendly operators are on hand to take your call and dispatch a highly trained engineer to your door. Our commitment to dealing quickly with all boiler emergencies, regardless of when or where they happen, means we have one of the best response times around. So, rest assured, when you get in contact with 24 Hour Boiler Repairs, your problem will be dealt with at speed by a team of highly skilled professionals. If you have an issue with your heating system, get in touch straight away.

Address
24 Hour Boiler Repairs
86-90 Paul Street
London
EC2A 4NE

Phone
0203 868 6251

Email
info@24hourboilerrepairs.co.uk

Request a callback

Need a Gas Safe engineer in London ASAP? Call us 24 Hours a day!

Boiler installation London

Boiler Installation London

Book a new boiler installation or replacement

Gas Safe registered engineers · 24/7 call handling · London wide

We will help you choose the right boiler for your property, confirm a clear quote, and install safely with proper commissioning and handover.

0203 868 6251 on Google

Quote clarity: we confirm the scope first, often from photos and a few questions, then provide a clear written quote before booking the install date.

If you currently have no heating or no hot water, you may need a repair first. See Emergency Boiler Repairs.

Request a call back

Two details to start. Tell us your property type and radiator count and we will work out what suits.

Rates agreed before work. We do not proceed with any additional work unless you approve it first.

We use your details only to respond to your enquiry. See our privacy policy.

Should you replace your boiler or repair it

Many boilers can be repaired cost effectively. Replacement tends to make sense when the appliance is unreliable, parts are becoming difficult to source, or there are signs of major internal failure.

If repair costs are stacking up or a major component is failing, for example the heat exchanger or PCB, replacement can be the more reliable long-term fix.

Repeat breakdownsand frequent call outs
Parts are obsoleteor the boiler is no longer supported
Leaks from the heat exchangeror corrosion inside the appliance
Performance issuesinconsistent hot water or poor heating
Safety concernsflagged during inspection
Running costsefficiency improvements on older models

Boiler types and what suits your property

Choosing the right boiler depends on your hot water demand, property size, number of bathrooms, and how your current system is set up. We can advise on a like for like replacement or an upgrade where it suits the home.

Combi boiler

A combi boiler heats water on demand and does not require a hot water cylinder. It suits many flats and smaller homes, and it can be a good option where space is limited.

System boiler

A system boiler works with a hot water cylinder and can be better for homes with higher hot water demand, for example multiple bathrooms. It often provides stronger hot water delivery to more than one outlet.

Regular boiler

A regular boiler is common in older systems that use a tank and cylinder. In some properties it can be retained or replaced like for like where the existing setup suits the home.

What we will ask to recommend the right boiler: number of bathrooms and showers used at the same time, property type and approximate radiator count, current boiler make and model, whether you have a cylinder and want to keep it, and where the boiler is located along with any access limitations.

What’s included in our boiler installation

We keep the process clear and predictable. Once we have the property details, we will explain what is needed, confirm a quote, and schedule the work.

  • Removal and safe isolation of the old boiler
  • Installation of the new boiler with correct pipework connections
  • Flue and condensate setup checked for safe routing and compliance
  • Controls setup including thermostat and programmer configuration
  • System fill, purge and pressure checks
  • Commissioning and safety checks as required for gas appliance work
  • Benchmark commissioning and safety checks on completion
  • Building Regulations notification (Gas Safe) and confirmation of compliance paperwork
  • Warranty registration guidance and registration where applicable
  • Handover with advice on operation and next steps
Ongoing care: an annual service helps keep performance and safety on track. See Boiler Servicing London.

How long does a boiler installation take

Timescales vary depending on the work involved. Straightforward like for like replacements are often completed in a day. Relocations, conversions, or additional pipework changes can take longer.

We will confirm the expected duration once we know your boiler type, access, and the scope of work.

Boiler installation cost in London

Boiler installation cost depends on the boiler type, the complexity of the work, and the condition of the heating system. We provide clear quotes based on what is needed for a safe and reliable installation.

  • Boiler type and output needed for your home
  • Like for like swap versus relocation or system change
  • Flue route and condensate routing requirements
  • Controls upgrade such as thermostat and programming
  • Gas pipe sizing upgrades where required
  • System condition, sludge risk, and whether cleaning is recommended
  • Access and working area around the boiler
Rates agreed before work: we do not proceed with any additional work unless you approve it first.

Power flush and system protection

If there is evidence of sludge or poor circulation, cleaning the system may be recommended to help protect the new boiler and improve radiator performance. We will advise based on symptoms and what we find.

Magnetic filters and inhibitor: inhibitor helps reduce corrosion inside the system. A magnetic filter can help capture circulating magnetite and reduce future sludge build up. We can advise what suits your system as part of the installation plan.

Learn more: Power Flush London.

Boiler brands we work on

We work on most major boiler brands and can advise on the best option for your property.

See Boiler brands we repair for more.

Areas we cover

We provide boiler installation and boiler replacement in London and surrounding areas. If you searched “boiler installation near me”, call with your postcode and we will confirm availability.

See coverage: London areas we cover.

Boiler servicing LondonAnnual service and safety checks Emergency boiler repairsNo heating, no hot water, lockouts Power flush LondonSludge and cold radiators

Boiler installation FAQs

How much is a new boiler installation in London?

Cost depends on boiler type and output, the scope of work, and system condition. Call with your postcode, radiator count, and current boiler make and model and we will confirm a clear quote.

Combi vs system boiler, which is better?

It depends on hot water demand and property setup. Combi boilers suit many flats and smaller homes. System boilers can suit larger homes and multiple bathrooms that use hot water at the same time.

How long does installation take?

Many like for like swaps are completed in a day. Relocations and system changes can take longer. We will confirm timescales once we know the scope.

Do I need a power flush when replacing a boiler?

Not always. If there are signs of sludge or poor circulation, cleaning may be recommended to help protect the new boiler and improve heating performance. Learn more at Power Flush London.

Do you quote before the work starts?

Yes. We confirm the scope and provide a clear quote before work begins.

Can you install boilers across all London boroughs?

Yes. We cover London wide and surrounding areas. Call with your postcode and we will confirm availability for your location.

What does your boiler installation quote include?

We base the quote on boiler type and output, the scope of work (like for like versus changes), flue and condensate routing, controls, and system condition. We confirm what is included before booking.

Do you remove and dispose of the old boiler?

Yes. We isolate safely, remove the old boiler and dispose of it responsibly as part of the installation process.

Book a boiler installation quote

Call now or request a call back. Have your postcode, property type, bathroom count, boiler make and model, boiler location and approximate radiator count ready.

0203 868 6251 Request a call back

Gas Safe registered engineers · Rates agreed before work · London wide
24 Hour Boiler Repairs, 86-90 Paul Street, London EC2A 4NE

CALL Call us for Boiler Installation London
Call us 24 Hours a day

Trusted 24 hour boiler repairs - call 0203 868 6251

Specialist for all boilers including:

Google reviews

★★★★★4.6/5 on Google
★★★★★

Booked them in for a power flush after ongoing heating issues. The engineer was very thorough and explained what was being done at each stage. We noticed a huge difference in how quickly the radiators now heat up.

S ThanuGoogle review
★★★★★

Used this company after being recommended and I’m glad I did. The engineer was punctual, honest about costs and carried out the work to a very high standard. Felt like a trustworthy service.

Siva YelakarajulaGoogle review
★★★★★

Good value for money & was able to sort out my boiler quickly by ordering next day delivery for broken parts. Friendly, punctual service and laid out all the costs beforehand which was helpful. Would recommend.

Emma CourtneyGoogle review

Find prices & book repair online ●
Call now Find prices