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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
120 reviews
Recommended
Recommended
by 99% of customers
Sort by
Great job, highly recommended.
Customer Service
Quality
Value
Aziz and his assistant Mergym were fantastic. Prompt, reliable and personable. They tidied up after themselves, gave great advice on heating systems and clearly take pride in the work.
Ku, London
, work completed
Recommended
Outstanding work.
Customer Service
Quality
Value
Certified Gas Heating Ltd is a great new company in it's infancy, but growing strength to strength due to their excellent customer focus. Our boiler was replaced in a day and system flushed etc. Would highly recommend these guys. Really knowledgeable, helpful and hard working guys.
, work completed
Recommended
My Review
Customer Service
Quality
Value
Was able to come and fix my problem on the same day, although was running late, kept me well informed, did a great job fixing my leaky toilet, all new parts and reasonable cost. Would highly recommend and use again.
Dave, London
, work completed
Recommended
Great Trader
Customer Service
Quality
Value
Aziz and colleague gave an estimate, stuck to it and delivered!!! Really professional & knowledgeable, finally our dream of a dishwasher was realized! Would definitely recommend them!
Cy, London
, work completed
Recommended
Good job, reliable, efficient & no fuss
Customer Service
Quality
Value
Excellent work ethic, reliable, efficient, good & enthusiastic gas fitter. Job done.
Robin, London
, work completed
Recommended
Great job and reliable
Customer Service
Quality
Value
Aziz was reliable and communicated well. It was a relatively simple job which was done well in a timely and efficient manner. Aziz was very friendly and would recommend.
Kam, London
, work completed
Recommended
Good job - would recommend
Customer Service
Quality
Value
Very tidy, friendly, hard working. Quote was exactly right. Would definitely use again and recommend to others.
, work completed
Recommended
Very good job, cleaned up after
Customer Service
Quality
Value
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
, work completed
Recommended
Brilliant, efficient and friendly
Customer Service
Quality
Value
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
, work completed
Recommended
Complete satisfaction throughout
Customer Service
Quality
Value
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
, work completed
Recommended