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Gas Boiler Servicing / Repair in London (98)

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Plumb London Logo

Plumb London

9.39(1780 reviews)

Operates in London

Services & skills
Central Heating
Gas Boiler Servicing / Repair
LPG Central Heating Servicing / Repair
Emergency Central Heating Repair
Gas Central Heating Servicing / Repair
Plumb London Logo

Plumb London

9.39(1780 reviews)

Operates in London

Services & skills
Central Heating
Gas Boiler Servicing / Repair
Gas Central Heating Servicing / Repair
Emergency Central Heating Repair
LPG Central Heating Servicing / Repair
Mayfair Plumbers Logo

Mayfair Plumbers

9.54(309 reviews)

Operates in London

Services & skills
Central Heating
Gas Boiler Servicing / Repair
Emergency Central Heating Repair
Gas Central Heating Installation
Smart Thermostats

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Blue Flame Central Heating Ltd Logo

Blue Flame Central Heating Ltd

9.94(195 reviews)

Operates in London

Services & skills
Central Heating
Gas Boiler Servicing / Repair
Gas Boiler Installation
Gas Central Heating Installation
Gas Safety Checks - CP12
CP Maintenance Logo

CP Maintenance

9.87(46 reviews)

Operates in London

Services & skills
Central Heating
Gas Boiler Servicing / Repair
Gas Safety Checks - CP12
Gas Central Heating Servicing / Repair
Gas Central Heating Installation
PH Gas Ltd Logo

PH Gas Ltd

9.7(315 reviews)

Operates in London

Services & skills
Central Heating
Gas Boiler Servicing / Repair
Gas Central Heating Servicing / Repair
Gas Central Heating Installation
Gas Boiler Installation
Cosy & Safe Ltd Logo

Cosy & Safe Ltd

10(10 reviews)

Operates in London

Services & skills
Central Heating
Gas Boiler Servicing / Repair
Gas Safety Checks - CP12
Smart Thermostats
Gas Central Heating Servicing / Repair
1st Avenue Gas Plumbing and Heating Services Logo

1st Avenue Gas Plumbing and Heating Services

9.91(73 reviews)

Operates in London

Services & skills
Central Heating
Gas Boiler Servicing / Repair
Gas Boiler Installation
Gas Safety Checks - CP12
Smart Thermostats
Mizzen Heating And Plumbing Logo

Mizzen Heating And Plumbing

8.97(312 reviews)

Operates in London

Services & skills
Central Heating
Gas Boiler Servicing / Repair
Smart Thermostats
Emergency Central Heating Repair
Gas Safety Checks - CP12
Pro Plumbing Heating & Boilers Ltd Logo

Pro Plumbing Heating & Boilers Ltd

9.95(310 reviews)

Operates in London

Services & skills
Central Heating
Gas Boiler Servicing / Repair
Emergency Central Heating Repair
Gas Central Heating Installation
Gas Boiler Installation
BPSC LIMITED Logo

BPSC LIMITED

9.9(262 reviews)

Operates in London

Services & skills
Central Heating
Gas Boiler Servicing / Repair
Emergency Central Heating Repair
Gas Boiler Installation
Gas Central Heating Installation
Thermal Glow Ltd Logo

Thermal Glow Ltd

(8 reviews)

Operates in London

Good availability

Services & skills
Central Heating
Gas Boiler Servicing / Repair
Emergency Central Heating Repair
Gas Central Heating Servicing / Repair
Gas Safety Checks - CP12

Boiler servicing and repairs in London

Need your boiler serviced, repaired or just given a once-over? Whether it’s a noisy combi, a sudden loss of heating or hot water, or a leak you can’t ignore, we’re here to help.

On Checkatrade, you’ll find boiler engineers working in London who’ve passed up to 12 checks, are insured, and rated by people like you. From annual boiler services to urgent repairs, we can help you browse boiler engineers and get it sorted.

You can compare boiler engineers working near you, request a quote, and know you’re covered by the Checkatrade Guarantee (up to £1,000 if something goes wrong, T&Cs apply).

Find the right engineer for the job you need:

  • How much does a gas boiler service cost in London?

    Expect to pay between £80 and £120. Costs vary depending on your boiler type, location in London, and engineer availability. Some engineers offer annual service plans at a discounted rate.

    For the full cost breakdown, see our guide to boiler servicing costs and repair costs.

  • How much does it cost to fix your gas boiler in the UK?

    The average cost of boiler repairs is about £300, with costs ranging from about £100 to £500.

    Emergency repairs cost a bit more, averaging at around £410. Those with insurance pay the least, with the average monthly payment being about £11.75, which covers breakdowns and repairs.

  • How do you know when your boiler needs to be repaired?

    Keep an eye out for these warning signs of a boiler needing repair:

    • Pressure loss leaving you with no heating or hot water

    • Water leaks from your boiler or pipes, causing inefficient heating

    • Banging or clanking noises indicating a trapped airlock or faulty thermostat

    • Strange smells could be due to debris, dust or moisture

    • The boiler turning itself off can be protection against overheating

    • No heating/hot water due to a malfunctioning circulation pump or thermostat

    Find electric boiler servicing/repair in London with our online search.

  • How do I know if my gas boiler needs servicing?

    There are a few ways to recognise whether your boiler is due to be serviced, including:

    • You haven’t had it serviced in over a year

    • Your energy bills have increased

    • Your house isn’t heating up as well

    • You hear unusual noises coming from the boiler

    • You spot leaks

    • The boiler shuts down by itself

    • The boiler is old

    If in doubt, contact a gas boiler servicing company to see if your boiler is overdue for some maintenance.

  • What should I do if my boiler breaks down in an emergency?

    You will need to hire an emergency boiler repair engineer if your boiler is experiencing any of the following:

    • Gas leaks
    • Faulty carbon monoxide detector
    • Fast-flowing water leak
    • No heating or hot water
    • Full system shutdown

    Contact an emergency boiler repairs service covering London and switch off the boiler while you wait for help to arrive.

    Tradespeople often charge a higher call out fee for emergency repairs but ignoring serious gas boiler faults can be dangerous.

    Hire a Checkatrade gas boiler engineer to get your heating and hot water up and running again.

  • How often should I service my gas boiler?

    Gas boilers should be serviced every 12 months. An annual service will make sure your boiler continues to perform at its best.

    It takes approximately one hour for a gas engineer to service a boiler. Several checks and tests will be carried out during the service to make sure everything is working correctly and no repairs are needed.

    All boilers, even new installations, need to be serviced annually. Failing to service a boiler every year can void your warranty and also lead to problems and damage being missed.

  • Is it worth servicing a gas boiler?

    Regular boiler servicing is definitely recommended, as it can extend the lifespan of your boiler and help you identify issues before they cause a breakdown.

    Servicing can also ensure your boiler is operating at maximum efficiency, which can save you money on your monthly bills.

    In the UK, landlords are required to service boilers at least every year, but it’s not a legal requirement for homeowners. That said, the boiler manufacturer may require regular servicing to keep the warranty valid.

  • How much does it cost to service a gas boiler?

    The average cost of boiler servicing is about £100. You can also get insurance coverage for your boiler, which costs around £240, but this covers breakdowns as well as annual servicing.

  • What signs indicate my boiler needs repair?

    Gas boilers are prone to several common issues. To avoid a full boiler replacement, it is important to know what signs to look out for and to get the problem fixed as soon as possible.

    Signs of a faulty gas boiler include:

    • Error codes displayed on the control panel
    • Leaking water
    • Unstable pressure
    • Banging sounds
    • Heating and hot water issues
    • Gas leaks
  • What are the most common boiler problems?

    The most common problems you may encounter with your boiler include:

    • No heat or hot water
    • Low pressure
    • Leaks
    • Banging noises
    • Thermostat faults

    Error codes can also point to what's gone wrong.

  • What’s included in a standard boiler service?

    A service usually includes:

    • Visual checks
    • Flue inspection
    • Pressure tests
    • Cleaning of key parts
    • A report on your boiler’s condition
  • How long should a gas boiler last?

    A well-maintained gas boiler can last 10 to 15 years. Servicing helps extend its life and catch problems before they grow.

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