Boiler Installation, Boiler Service & Boiler Repair in London

If you need comprehensive and reliable boiler service, here is what our company can offer:
  • Boilers installation
  • Gas Boiler servicing
  • Domestic Boiler repairs
  • Boiler replacement
  • Combi boillers and System boilers
  • Heat only boilers
  • Open Vent systems boilers
  • Annual boiler services & repairs
  • Gas Water heaters
  • Commercial Boilers

If you need to install a new boiler, our experienced and qualified engineers will advise you on different makes and brands. We will help you to choose the best option based on your heating needs, plumbing setup, size of your property and your budget. Then we will arrange your new boiler installation to be carried out. Our Gas Safe registered engineers will also register your new appliance to the Local Authority.

07572 790790

Each boiler should be regularly serviced and maintained. This is crucial in order to prevent your appliance form breaking down. However, if break down happens, our company offers emergency 24/7 boiler repairs within the area of Central London, Chelsea, Kensington and Fulham. Once you observe any suspicious behaviour of your appliance like unusual sound, not enough heat or if gas can be smelled, do not hesitate to contact us at any time.

Boiler Repair & Installation Experts In London.

Fixed prices of heating repairs.

boiler repair and service in london South WestWe quote for the work, NOT for the time it takes. That means no matter how long the repair works last you always pay the same and additionally you will know the price in advance.

Save money on new boiler and heating system from the professionals.

7-10 YEAR WARRANTY ON SELECTED NEW BOILERS: Up to 10 year warranty on selected new boiler systems (certain brands, see written warranty for details). We have the experience with ALL BRANDS and ALL MODELS.

Vaillant Boiler Service

Unicorn 2000 Ltd provides Vaillant boiler services and installations in the whole of the Greater London area. We know that Vaillant boilers are very popular due to their economical, reliable, efficient and silent operation throughout their long lifespan period. For this reason, Unicorn 2000 Ltd decided to participate in the Vaillant Advance Programme since it provides us and our customers many great rewards and benefits. Being a Vaillant Advance Partner allows us to offer you up to 7-10 year warranties on selected Vaillant boilers while installing a new system. These boilers will surely satisfy you and we can ensure that once you have installed the new boiler you will be provided  with comfort and safety for a long period of time.

We have installed a large number of Vaillant boilers within the Greater London area and gathered a great deal of experience whilst doing so. Furthermore, our engineers attend Vaillant training days and are officially recognized as Vaillant Approved Advanced Installers. We still participate in training sessions as they allow us to be up-to-date with the newest installation procedures and repair solutions. Consequently, Vaillant is thoroughly confident their products are being installed in accordance with their specifications and so are able to provide either a 5 or 7 year warranty on all Vaillant boilers.

Unicorn 2000 Ltd – Vaillant Boiler Service engineers are Gas Safe registered so there is no doubt your new installation will be safely installed meeting the Gas Safe requirements. We provide Gas Safe/Landlords Certificates whilst installing new boilers or any another gas appliances. By entrusting Unicorn 2000 Ltd to service or install Vaillant’s products you will receive a full range of benefits and guaranteed professional job finished to the highest standard.


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Central London, South West London, West London. North London, Chelsea, Kensington, Westminster, Battersea, Chiswick, Paddington. Marylebone, Bloomsbury, Holborn, Covent Garden, Pimlico. South Kensington, Mayfair, Soho, St. James’s, Leicester Square, Maida Vale, Hampstead.