We use cookies to allow us and selected partners to improve your experience and our advertising. By continuing to browse you consent to our use of cookies. You can understand more and change your cookies preferences here.

Coronavirus Read our latest advice

Endorsed by



Trusted Traders

Certified Group LTD

Profile thumb 7fb1b459 62ad 4dac a25e 864599dd07d8


98 Reviews

Opening Hours
Today - 24 hours
  • Monday - 24 hours
  • Tuesday - 24 hours
  • Wednesday - 24 hours
  • Thursday - 24 hours
  • Friday - 24 hours
  • Saturday - 24 hours
  • Sunday - 24 hours


Welcome To Certified Group Limited,

We are a sister company to Certified Gas Heating Ltd.
Started of as a dedicated and driven apprentice who started working within the plumbing trade from the age of 15.

Established in 2012, We are a fast growing company accommodating your plumbing, heating and gas utilities effectively.
Over the years we have started to offer other services which include: Electrical, renewables, drainage, carpentry, roofing, property renovations and kitchen extensions hence the reason for the name change as it fits our image at present.

We at Certfied group are known for being professional, organised and enthusiastic at all times. We are approved contractors rated a “5 Star company for quality services” on Checkatrade

We at Certified group have a fantastic reputation for our hard work, performance, quality and efficiency.

We are based in Greenwich SE10 London and cover whole of the capital and surrounding areas. We offer a 24/7 emergency services, and much more.

What we do

  • Heating contractors

    • Central heating systems (installation and servicing)
  • Plumbers

    • Emergency plumbing services
  • Boiler, central heating and gas engineers

    • Boiler installation
    • Boiler repair
    • Boiler servicing
    • Radiators and central heating
  • Gas installers

  • More Services

    • pumbing
    • heating
    • gas
    • bathroom installations

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

98 reviews
Customer Service
Sort by
Excellent quality
Customer Service
Aziz and Kibba came and did a boiler replacement for me. They were incredibly diligent and pleasant. The work seems to be of the top quality. It is so great to have a boiler that you trust. On my experience, I would recommend certified to anyone.
Customer in Greater London Posted on 15/01/2021 , work completed 07/01/2021
Very professional
Customer Service
Aziz and his team came to the rescue late at night when our boiler was leaking. He was very quick to find a replacement and install it immediately, despite the covid situation. Very clean work and professional. We will definitely use them again as they do all sorts of work.
Rania in Greater London Posted on 06/01/2021 , work completed 19/12/2020
Gas Boiler Annual Service
Customer Service
Certified Gas Heating carried out my annual gas boiler service in September 2020. They responded very quickly to my initial enquiry, sent a written quote in advance and were able to attend within a few days. Aziz and Kebba were thorough and efficient. Aziz gave me very comprehensive explanations. They were careful to adhere to all covid-19 precautions applying to contractors working inside someone’s home and I felt that both they and I were kept very safe. It was a pleasure to do business with them and I will definitely use them for the service next year.
Customer in Greater London Posted on 09/12/2020 , work completed 02/09/2020
Hands down the best “trade” experience I’ve ever had
Unbelievably personable and professional, honest and straightforward, immaculate attention to detail. Can’t recommend these guys highly enough.
Customer in Greater London Posted on 14/10/2020 (Reviewer did not use service)
Great job - on time, on budget and no surprises
Customer Service
After discovering a ruptured heating coil in my hot water tank, I asked Certified Gas Heating to remove the hot and cold water tanks and install a new hot water cylinder as part of a closed system. This is quite a labour intensive job requiring lots of changes to existing pipework but I was fully briefed in advance and so knew exactly what to expect. The team were always punctual and polite, left the house clean and tidy at the end of each working day and completed the work to a high standard.
Customer in Greater London Posted on 31/08/2020 , work completed 30/07/2020
Job well done
Customer Service
I had a new bathroom toilet installed with a multi flap in the waste pipe. I was quoted a reasonable price for the work which was carried out promptly on a day to suit me. Aziz and Kebba carried out the job to a high standard. I’m very pleased with their work and the end result. I found them professional, polite and pleasant to deal with. I will definitely use them again and would recommend to others.
Customer in Greater London Posted on 15/06/2020 , work completed 13/06/2020
Hot water tank problems
Customer Service
Excellent service from first contact through to completion of the work required. Detailed quote and no surprises. Very professional and efficient service.
Customer in Greater London Posted on 14/06/2020 , work completed 14/06/2020
Quality workmanship
Customer Service
New boiler fitted, great service everything carried out as I was told it would. Would recommend.
Samantha, Kent Posted on 04/05/2020 , work completed 15/04/2020
Dedicated, knowledgeable
Customer Service
Great service from start to finish, completed tricky job. Place was spotless, both guys respectful, the property & worked tirelessly through bank holiday to get a problematic boiler fitting complete.
Liam John, London Posted on 04/05/2020 , work completed 11/04/2020
Customer Service
Basically these are people you are happy to have working in your home - helpful, obliging, good humoured and hardworking. Certainly would recommend.
Frances, Surrey Posted on 04/05/2020 , work completed 10/04/2020