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Boiler Repair London

It’s recommended that your boiler is serviced annually to ensure it’s working efficiently. However, there are times between an engineer’s visit, when problems can occur.

Problems that need professional help include:

  • no heat or hot water
  • system blockages
  • banging and gurgling noises
  • gas or water leaks
  • loss of pressure
  • fault code warnings

If you have a gas boiler and the flame is burning yellow instead of bright blue, your boiler may be emitting carbon monoxide. Carbon monoxide does not smell, but it is lethal. A qualified engineer should be called immediately./p>

ABS engineers can deal with any central heating system and boiler repairs quickly and reliably. Our team of fully trained experts will perform a full diagnostic test to determine whether your boiler can be repaired, needs a power flush or will need replacing.

Emergency Boiler Repairs London

There’s nothing worse than being left without hot water or heating, especially during winter.

Don’t panic. You can rely on ABS to solve your emergency boiler and heating problems, no matter what time or day.

Our emergency boiler repair service is available at all hours. Call 0203 714 0947 for a quick, reliable and professional service from ABS boiler repair specialists, London.

Boiler Service London

A smooth running boiler is essential for your heating and hot water needs. A poorly maintained boiler can end up costing you money in higher energy bills and avoidable repair costs.

We recommend your boiler is serviced annually to ensure it’s running as efficiently and safely as possible.

ABS are experts in domestic and commercial boiler service and maintenance, covering Central, South, South West London and Surrey. We will inspect and clean your boiler, as well as performing a flue test to ensure there are no harmful carbon monoxide or gas emissions.

Our annual boiler service includes:

  • Component inspection, testing and cleaning
  • Replacement of damaged or worn parts
  • Gas pressure measurements
  • Flue safety test

Power/System Flushing

We also offer a power flushing service to clean the entire central heating system. After time, limescale build-up, rust and air blocks can affect the efficacy of the heating system so a power flush will be needed to ensure any blockages are dealt with and your central heating system runs smoothly.


ABS has extensive repair and servicing experience with varied and complex commercial heating systems. Our specialised commercial maintenance and repair services in London and Surrey include Vaillant boiler services.

Boiler Installation London

If your boiler is more than 10 years old, not running as it should or needs frequent repairs, you may need to consider an upgrade.

Installing a new boiler is a big investment, but an A grade, energy efficient model can save you up to £300 a year in heating and hot water bills, as well as drastically reducing your carbon footprint.

ABS engineers have been offering safe and reliable boiler installation in London for over 25 years now. Our experts can advise you on all aspects of boiler replacement and installation. We’ll explain the different types available, and will recommend the right size and capacity, ensuring you’ll have the best model for your hot water and heating needs.

All work undertaken is guaranteed and is carried out by fully qualified, gas safe engineers, who will replace your old boiler with the minimum disruption. We pride ourselves on an excellent customer service and our installation process is smooth, clean and tidy.

We also provide the following services:

  • full central heating upgrades
  • hot water cylinders
  • system conversions
  • underfloor heating

For a free estimate, or more information and advice on boiler replacement and installation in London and Surrey, contact us today.