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Endorsed by Which?
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
112 reviews
Recommended
Recommended
by 99% of customers
Sort by
Water mains leak
Customer Service
Quality
Value
Certified Group attended to track down a leak, that they identified as being on the mains inlet pipe. There were also some leaky taps and a toilet needing attention. Aziz and his team dealt with all this efficiently, keeping me well informed at every stage. They arrived on time and put in long hours, always cheerful and a pleasure to have around. The toilet repairs were more extensive than anticipated, but were completed to a high standard well within the schedule. Each day and on completion everything was left neat and tidy.
Customer in Greater London
, work completed
Recommended
Extremely Professional with high quality workmanship
Customer Service
Quality
Value
Aziz and his team were extremely professional and it was really refreshing to have work carried by people who genuinely cared about what they were doing with an extremely high quality of workmanship. Aziz is extremely helpful and has an amazing attention to detail. Everyone had great respect for our home and left it spotless when finished. I would highly recommend.
Customer in Greater London
, work completed
Recommended
Fix leak, put in new tiles and bath/shower
Customer Service
Quality
Value
Aziz and his team did a terrific job identifying the source of a leak in a terraced house bathroom. They removed an old bath, shower, shower screen and tiles. They straightened the wall, added insulation put in new tiles, new bath/shower and reattached basin. There was barely any mess or dust, the protective covers they installed on the carpet worked perfectly. And they were very good at cleaning up and removing rubbish every day. Aziz and his team were all professional, friendly and approachable. The finished job looks fantastic. Hopefully, they will be available for any future jobs.
Customer in Greater London
, work completed
Recommended
Full 4 bedroom house renovation
Customer Service
Quality
Value
I had Aziz from certified group ltd come and do a full house renovation for me which included full plumbing, electrical rewire, plastering, painting and decorating etc. from the beginning to the end Aziz and his team were an absolute delight! Really professional tradesmen, I'm so happy with all the works that has been done to my home, everyone that comes over has been complimenting how amazing it looks! In fact two of my friends has asked for Aziz’s number. They are always on time, they clean after themselves and have always left my property in an immaculate condition. I recommend Aziz and his team to everyone. You will not be disappointed! Thank you Aziz and the rest of the certified group team. I will definitely be using you again very soon.
Customer in Greater London
, work completed
Recommended
Great plumbing and building team
Customer Service
Quality
Value
Aziz and his team (special mention to Karim and George) undertook extensive repairs to our hot water and central heating systems in our apartment. They worked extremely hard to produce a quality professional result. Our impression is that they will not compromise in order to achieve a high quality long term solution and their aim is to foster long term clients. Completed within time frame and on budget. Highly recommended!
Customer in Greater London
, work completed
Recommended
Great Work
Customer Service
Quality
Value
Aziz and his team came and upgraded the heating system in my house, incl the replacement of a very old boiler with a modern one, the gas pipeline upgrade, disposal of old dirty water tanks, they also resolved many potential problems in the kitchen. Aziz and his mates showed professionalism and sometimes they worked long hours eg 8am to 8pm to keep up with the plan while working on more items associated with the plan... I'd recommend them.
Customer in Surrey
, work completed
Recommended
Boiler replacement.
Customer Service
Quality
Value
Good job professionally done with respect for my property. Engineers clearly knew what they were doing and took pride in doing a good job.
Customer in Hertfordshire
, work completed
Recommended
Great Service, Top Work
Customer Service
Quality
Value
This was the 3rd job picked up by Certified Group and they continued to deliver. Each job has ended up having quirks - the latest being some plastic piping that needed replacing - and they've been extremely helpful and communicative throughout. Hopefully, all my gas and heating needs are sorted for the time being - and it's comforting to know they're there to support in case of any issues. Cannot fault them at all. Thanks, guys!
Customer in Greater London
, work completed
Recommended
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