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Endorsed by Which? Trusted Traders
Certified Group LTD
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
About
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
My work
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.
4.8
104 reviews
Recommended
Recommended
by 99% of customers
Sort by
Trustworthy, reliable and hard working team
Customer Service
Quality
Value
Aziz and his team previously installed my boiler. As I was very happy with their work from the last time, I recently asked them to fit new radiators for me. Brand new radiators aside, I am extremely happy with the work ethics of the team. I found the team to be genuine, thorough and hard-working (i.e. being on time and working straight through from 8.30am to 8.00pm in order to maintain their schedule). Very friendly demeanor and the team cleaned up as they went along! There was great communication amongst the team as well as the communication with me about the work at each step. Needless to say the project ran smoothly from start to finish. They also went the extra mile and helped put up a heavy mirror and an installation for me even though it was not part of the work. A great team!
Customer in Greater London
, work completed
Recommended
High quality job - multidisciplinary team
Customer Service
Quality
Value
Aziz and his team helped me to refurbish a new property. The work involved decoration, plumbing, electrical updates and they were able to cover all these areas with separate experts. Communication was great and continuous. Any issues found while doing the work was discussed in advance and thoroughly. The team delivered a high-quality finish and they left the property in pristine conditions. Even when there was an issue after they left, they sent someone to sort it promptly without asking for additional fees. I found them slightly more expensive than the competition but I guess you need to pay the right price for a high-quality job and they delivered on it! I would definitely use Certified Group in the future!
Customer in Greater London
, work completed
Recommended
Great Considerate Work
Customer Service
Quality
Value
Replacement of shower unit originally installed by Ream without sufficient preparation. Aziz and his team removed the old units and tiles and we were shocked at the poor preparation by the Ream installer which had caused the shower tray to flex and leak. Aziz had to cut back plaster which had become soaked as a result. The team managed supply issues and were very considerate working around us whilst we were working from home too. Would certainly recommend the Certified team to anyone.
Andrew in Greater London
, work completed
Recommended
Happy customer, good work
Customer Service
Quality
Value
They were very friendly, professional. They did an excellent job, very neat.
Which? Trusted Traders Consumer
, work completed
Recommended
Avoid at all costs
Customer Service
Quality
Value
I called this company first to repair my old boiler system which had failed - and really wish that I hadn't. Their call out fee is £144 inc. VAT. The guy turned up and said that the electrics in the timer were 'fried' and that it would be unsafe to repair. I would need a new Combi boiler. He quoted me just under £7000 for that but graciously offered to deduct that from the £7000 if I used them to replace the boiler. Stupidly I believed him and got quotes for a new combi installation which ranged from £3000 to £5000. I then got a guy who refused to quote me as it could be fixed with some new parts - it was a simple electrical fault. Cost £350 and is working fine. So I paid £144 for nothing and was then blatantly lied to. Also creepily the guy texted me to ask if I was 'ok' as it was really cold at that time. When I said I was getting other quotes - silence. Avoid this company at all costs.
Customer in Greater London
, work completed
A top team to keep on speed dial.
Customer Service
Quality
Value
I have never been in the happy position to recommend plumbers before now. Christmas Eve and disaster strikes as a major leak from an old lead pipe shows in one of our bedroom ceilings. Aziz and Kebba from Certified Group came recommended by a neighbour that had used them a few days prior. I’m so glad that I went with that recommendation as I now have a go to team for all my maintenance and emergency repairs. They were punctual, worked to the highest standard ( as confirmed by my own regular builder who couldn’t attend because he was isolating) The stress of water escape and the ensuing collateral damage was eased by the team. Not only did they sort the leak but organised the building repairs and redecorating all under the one umbrella of Certified Group. They are a group of independent tradesmen about 8 in total that work together for their own company. They have a real pride in the service they offer and deservedly so. A top team to keep on speed dial.
Customer in Greater London
, work completed
Recommended
Excellent quality
Customer Service
Quality
Value
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
, work completed
Recommended
Very professional
Customer Service
Quality
Value
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
, work completed
Recommended
Gas Boiler Annual Service
Customer Service
Quality
Value
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
, work completed
Recommended
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
(Reviewer did not use service)
Recommended