Scores based on 38 reviews

Reliability & timekeeping

Invoice history based on 25 reviews.

Invoice History
Charged as per quote / estimate100%
Appointments reported as missed (6 months) 0
Average score 9.79
38 reviews
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ONYX Heating Services is a professional, reliable, friendly, family run company which has been established since 2010.

We are a Plumbing and Gas Services company covering all aspects of Domestic Gas Appliances & Boilers - Installation, Repair & Servicing

** Vaillant accredited Installer - 7 to 10 Years warranty on our Boiler installations **
** Extended warranty on Worcester Boilers **

Customer satisfaction is paramount, you find all our staff are honest, presentable, and work in a professional manner.

We aim to beat any genuine quote

We offer the following services: 

  • Central Heating Engineering
  • Plumbing
  • Boiler Installation
  • Central Heating - Gas - Installation, Repairs and Servicing
  • Landlord Certificates
  • Kitchen installation
  • Bathroom Renovation

Our aim is to provide a fast, efficient and competitive service from a trades person you can trust. 
We have over 10 years experience in Boiler repairs and installations. 

Our office telephone hours are 9am - 6pm Monday - Saturday

Based in


Works in

We cover all of London for boiler Installations Our boiler Servicing and repairs is restricted to East/North London and Essex.