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Endorsed by Which? Trusted Traders

Certified Group LTD

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103 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,

Affiliated with Certified Gas Heating Limited.

Established in 2012, A fast-growing company with an impressive reputation accommodating your plumbing, heating and gas constructively. Over the recent years we have started to offer additional services which include: Electrical, renewables, drainage, carpentry, roofing, property renovations, Loft conversions and kitchen extensions, thus the reason for the name change as it fits our image at present. We at Certified Group are known for being passionate, driven, professional and organised tradesmen at all times. We are approved contractors rated a “5 Star company for quality services” on platforms such as Which Trusted Trader, Trust Pilot and Checkatrade etc.
Ourselves at Certified group have a remarkable track record for our hard work, performance, quality, customer service and efficiency.We are based in Greenwich/London as well as Dartford/Kent and we cover the whole of the capital including the surrounding areas.

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

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

103 reviews
Customer Service
Sort by
Complete satisfaction throughout
Customer Service
From quotation to completion, this project of fitting a new boiler in a new location upstairs, this trader's attitude, job execution and pride in task was exemplary. It was refreshing and reassuring to deal with Aziz and Merch as professional people rather than just a company. I have no hesitation in recommending them.
Ivan, Essex Posted on 19/06/2015 , work completed 19/06/2015
Very good job, cleaned up after
Customer Service
Aziz did a very good job on replacing my ball cock in my toilet tank. He was quick on finishing the work and the toilet is flushing without any excess overflow. This is the second time Aziz has worked for me, so I'm very happy with his work. I'd recommend him on to my friends in a heartbeat.
Errol, London Posted on 19/06/2015 , work completed 19/06/2015
Brilliant, efficient and friendly
Customer Service
Aziz and his staff were efficient, friendly and very professional. They ensured our expectations of the works required were met and involved us all the time. On completion, they ensured everything was left clean and tidy. I would not hesitate in contacting/using/recommending them in the future.
Shirley, London Posted on 19/06/2015 , work completed 19/06/2015
Customer Service
Dynamic and professional - a truly awesome team.
Juliet, London Posted on 29/05/2014 , work completed 29/05/2014