Onyx Services Limited

Onyx services Ltd have been in the home improvements business for many years. All engineers are Gas safe and NIEIC registered. We undertake all types of building, construction as well as heating and plumbing installation. All our kitchen fitters have been approved by Wickes,Magnet & Howdens. Onyx has £1 million public liability insurance. All work comes with written garuantee. All major debit/credit cards accepted.


  1. Gas Work
  2. Central Heating
  3. Plumbing
  4. Kitchen Fitting
  5. Loft Conversions
  6. Bathroom Fitting

About Onyx Services Limited

Home extentions
Kitchen renovations
Bathroom remodeling
Boiler installation specialist
Loft conversions experts
Boiler service/Repair
Central heating Install/Repair
Megaflow unvented registered installers
Power flush heating
Gas safety certificate


We are a highly professional company. Working all over London and all our engineers are gas safe and NIEIC registered

More than 10 years experience in construction , plumbing , central heating, Loft & extention specialist.

ACS Core gas Safety
Gas appliances
Water heaters
Unvented hot water
Pipe work
CPA1 Combustion analysis
Gas safe registered
FMB. Federation of master builders
Rated Trader

We can offer extended warranties with the most manufacturers


Public Liability Insurance

Limit of indemnity: £5,000,000.00
Valid until: 17th Jul 2022