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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)
- Immersion Heaters
- Automated Heating
Plumbers
- Emergency plumbing services
- Unvented cylinder installation and maintenance
- Water softener installation and maintenance
Boiler, central heating and gas engineers
- Boiler installation
- Boiler repair
- Boiler servicing
- Radiators and central heating
- Gas cooker installation
- Gas cooker repair
- Gas emergencies
- Gas fire repair and servicing
- Gas safety testing and inspection
- Immersion Heaters
- Power flushing
- Underfloor heating
Gas installers
- Gas Fires
Builders
- Extensions
- Garage conversions
- Loft conversions
- Plastering
Electricians
- Electric Showers
- Electrical emergency services
- Electrical installations
- Electrical repairs
- Electrical testing services
- Landlord safety certificates
- Fuse boards
- Outdoor electrical wiring
- Rewiring
Drain clearance contractors
- Blocked drains
- Drain and sewer services
- CCTV drain surveys
- Drain installation
- Emergency drain clearance service
Property refurbishment contractors
Building construction contractors
- Basement Waterproofing
- Basement conversion
- Building construction management
Bathroom fitters
- Accessible bathrooms and showers
- Wet rooms
- Electric Showers
- Bathroom Installation
- Bathroom design services
- Bathroom refurbishment
- Bathroom suppliers
- Bathroom tiling
Kitchen fitters
- Kitchen design
- Kitchen installation
- Kitchen refurbishment
- Kitchen tiling
- Kitchen worktops
- Granite Worktops
Carpenters
- Joinery and carpentry
Tile fitters and showrooms
- Bathroom tiling
- Floor tiling
- Kitchen tiling
Roofers
- Flat roofing
- Roof and skylights
Glaziers
- Double glazed units
- Double glazing installation
- Aluminium Windows
- Double glazing repair
- Glass boarding up and replacement
- Replacement window services and repairs
- Sash windows
- UPVC Windows
- Timber windows
- Triple Glazing
- Velux windows
- Window consultants
Doors
- Bi-fold doors
- Composite doors
- Door repairs
- French doors
- Front door
- Patio doors
- Timber doors
- UPVC doors
- Aluminium doors
More Services
- re-roofing
- roof refurbishment
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
123 reviews
Recommended
Recommended
by 99% of customers
Sort by
Thorough, knowledgeable and honest
Customer Service
Quality
Value
Job completed to a high standard by honest, thorough and knowledgeable employees. They were happy to stay long hours until the job was completed and also happy to give unbiased advice. They explained what they were going to do/had done and why at every stage which was much appreciated. Would use again.
Josh, London
, work completed
Recommended
Professional, Fast and Friendly, (does what it says on the tin & then some)
Customer Service
Quality
Value
Aziz & Dean initially came out and worked on my faulty boiler end of last year and recommended replacing it due to the high cost of repairs. I rang back last week and was told they would be in thursday morning to replace the boiler and might need to finish up on Friday. They came in thursday morning on schedule and worked flat out to get everything installed and cleaned up by Thursday afternoon. Which I really appreciate as I am home with a small child. Aziz even found time to unblock an outside drain he noticed and tidied up the wiring in the kitchen at no extra cost. I would definitely recommend Certified Gas Heating Ltd excellent service
2011-08-09 01:26:13.23
, work completed
Recommended
Excellent service and workmanship
Customer Service
Quality
Value
I had my boiler replaced by Azui and the team. They took extra care to fit everything in an unobtrusive way and gave us good advice. I got a few quotes and I found theirs to be very good value. I was also pleased that they were straightforward and found them very trustworthy. Thank you Azui!
Laura, London
, work completed
Recommended
Brilliant job - Some of the best work seen.
Customer Service
Quality
Value
Aziz and the guys did a fantastic job in installing 9 + 2 rads servicing the boiler & changing the filters. The work is brilliant always had time to answer my questions. So pleased we used Aziz and the team.
Surandra J, Surrey
, work completed
Recommended
Fantastic job, highly recommended.
Customer Service
Quality
Value
I cannot recommended Certified Gas Heating highly enough. They came to do a few small jobs, and agreed to take a much bigger job when we found we needed it. Their work was excellent, timely and reliable. Communication was excellent throughout. Alfie went well beyond the call of duty. We will be using them again and recommending to others.
Ben, London
, work completed
Recommended
Really excellent
Customer Service
Quality
Value
Very professional and helpful.
D, London
, work completed
Recommended
Great job, great people
Customer Service
Quality
Value
I have used Aziz at CGH for at least 2 years. He's one of the few engineers who can deal with a gas tumble dryer. It's always a pleasure to have him in the house. He's polite, friendly, efficient, tidy and hard working. He always goes the extra mile to fit in with our needs. He and his team are great to work with and I highly recommend them.
Sarah, London
, work completed
Recommended
Prompt & professional
Customer Service
Quality
Value
Aa Work was completed satisfactory. Polite & prompt. would recommend.
Ulrika, London
, work completed
Recommended
Fantastic
Customer Service
Quality
Value
Very polite and tidy workers. Had new water pipes laid and connected to the mains. Also new water storage tank. They had to break up concrete to lay the pipe and refill in. Work was excellent.
Christine, London
, work completed
Recommended
Excellent work
Customer Service
Quality
Value
High quality work. Replace central heating system including all pipes and radiators. Work carried out on time and within agreed price. Would not hesitate to recommend this trader to family and friends
Rosella, London
, work completed
Recommended