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Welcome to Certified Group Limited, We are a sister company to Certified Gas Heating Ltd. Started of as a dedicated and driven apprentice who started working within the plumbing trade from the age of 15. Established in 2012, We are a fast growing company accommodating your plumbing, heating and gas utilities effectively. Over the years we have started to offer other services which include: Electrical, renewables, drainage, carpentry, roofing, property renovations and kitchen extensions hence the reason for the name change as it fits our image at present. We at Certfied group are known for being professional, organised and enthusiastic at all times. We are approved contractors rated a “5 Star company for quality services” on Which Trusted Trader, Trust Pilot and other platforms. We at Certified group have a fantastic reputation for our hard work, performance, quality and efficiency. We are based in Greenwich SE10 London and cover whole of the capital and surrounding areas. We offer a 24/7 emergency services, Landlord safety certificates, Central heating and boiler installations, Breakdowns, Repairs, Power flush and more.

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Reviewed by Paul on 12/7/2018

These guys are amazing! Aziz and his team recently undertook some major work on our home, including the complete removal of existing kitchen and slate floor, installation of underfloor heating, plumbing in of new boiler and relocation and replacement of pipe work throughout our house. Everything went so very well, The workmanship was of the very best quality and always undertaken with the utmost care for our home. I wholeheartedly recommend their services, Thank you so much Aziz, Kebba and the team.

J&B roofing and construction is a reliable hardworking company established by myself and my partner. After working together for several years on both private and commercial projects we decided to join forces and created J&B roofing. We specialise in roofing, any job any size. We complete all jobs to a professional high standard and are happy to customise every job to suit your individual need, budget and style.

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Reviewed by Omar on 24/5/2024

He did a good job. The leaky roof got fixed.

Over 20 years experience in construction, having worked solely on word of mouth for the past ten years we’ve built up a massively respectable reputation within the construction community, all work is insured and guaranteed, everything carried out to the highest standard possible, my personal skills include kitchen fitting, plastering, bricklaying, painting and decorating and much more, we also have a team of skilled tradesman

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Reviewed by Susan on 24/5/2024

The job was done quickly and efficiently and the area left unbelievably clean and tidy .

Electrical, Mechanical & Building Services. Electrical installation Extensions Conversions Kitchens Bathrooms Refurbishments All associated building works NICEIC Aproved contractor. SafeContractor Approved We are a team of highly skilled, well experienced and passionate professionals who puts your needs at the forefront of what we do. All our work is completed to the highest industry standards and compliance with regulations is always met.

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Reviewed by Barbara on 17/5/2024

Harry, John and team were fantastic from start to finish for our home renovation. Professional, great advice and managed the project smoothly and within the timeframe expected. Highly recommended if you’re looking for a rewire, plumbing, bathroom / kitchen fit or full renovation. Thanks team!

UP FROM THE GROUND. We undertake the building of walls and extensions. UP FROM THE GROUND also does paving and landscaping.

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Reviewed by mark on 27/2/2020

Very good and straightforward man said what he was going to do, on time very efficient and price was good and fair would not hesitate to use again or recommend ???

My main focus is to deliver high quality work and to satisfy my customers requirements. I can carry out Full bathroom refurbishment Decorating Tiling Painting Vinyl Carpet

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Reviewed by Nagib on 10/4/2023

I hired Alin when I decided to spruce up my bathroom a bit and I'm very glad I did. He did a really beautiful job tiling the bathroom and fitting various new bits and bobs. I found him to be a dependable, punctual, conscientious guy who takes pride in his work. We had a few issues with some of the hardware I purchased and we were able to sort everything out together beautifully. On top of it all, he is a very pleasant guy to have around. Highly recommended.

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Reviewed by Mitul on 7/12/2009

Punctual and co-operative.

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Reviewed by Gary on 9/3/2011

C J Blake & Sons were outstanding, the quote was spot on and the work was the same. they were there on time everyday and charlie couldn't do more to help.Very polite, very very tidy. I would recommend them to anyone.

We are small company with more than 20 years of experience in the construction area in UK. We are refurbishment specialists which includes - Drylining, Partitioning,Ceilings,Plastering,Painting and decorating,Carpentry and Joinery. For other type of jobs we work with tradesmans we've known for years.References supplied.

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Reviewed by Iain on 29/3/2019

Extremely professional, pleasant and hard working. I wouldn’t hesitate to recommend Plamen for domestic or commercial projects. The workmanship was to the highest standards at a competitive price.

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Reviewed by Bryony on 25/1/2014

Attention to detail was superb. This became particularly evident during the snagging process when they picked up on things we had not noticed. Would definitely highly recommend them. Happy to leave them alone in our house as they were conscientious and reliable. Delighted with the quality of their work and the customer service we received. Nothing was too much trouble and they gave us good advice.

We are a family run building and cleaning company, originally from Hungary. Although we are not the cheapest, but our works are always done on the best quality. We can do roofing, cleaning and any other handyman jobs as well.

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Reviewed by Ed on 25/1/2015

Very hard-working, on time as promised, great quality - careful treatment of the valuable stuff in the house, would use again

I am a sole trader and have 15 years of experience within the building, painting and decorating trade My main skills: Painter/decorator Builder Kitchen/bathroom fitter Carpenter Roofer and all general maintenance.

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Reviewed by Annette on 26/2/2015

I'm very pleased with the repairs to the wall fixings and refix of our heavy motorized satellite dish which had come loose in the recent winds. The job was done very efficiently and promptly for the agreed budget and we are very pleased with the result. I would certainly recommend this trader based on this work and wouldn't hesitate to use I Grifi again for our future home projects and repairs. Many Thanks.

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Reviewed by eve on 9/5/2012

very pleased with his work and punctuality and also very polite

hello, we are a small building service . clean tidy friendly tradesmen specializing in small building projects. high standard of quality assured. city n guilds time served tradesmen.

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Reviewed by Christopher on 16/6/2023

Repairing a damaged garden wall. Quick, high quality workmanship at a very fair price. Highly recommended!

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Reviewed by Keith on 25/8/2011

Arrived on time and worked quick. Listened to what I wanted and was able to advise. Did a great job and did more of what was required. Thanks!

We are a small friendly family run business. Professionalism from start to finish. We Specialise in Patios, Driveways, Brickwork and Indian Sandstone.

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Reviewed by Jake on 12/3/2012

Lee Charles recently finished my new driveway, steps and walls which included brickwork, omega blocks and sandstone tiles. Lee's work was professional and thorough throughout and he took time over even the smallest details on the project. I would not hesitate to use Lee again for work at my property and I would 100% recommend Lee to my friends and colleagues. His work at my property has already been noticed and people living close by have asked him for future quotes. Great job Lee. Many thanks.

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Reviewed by bryan on 15/12/2008

Still awaiting Invoice, job done well and quickly

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Reviewed by Beky on 23/5/2015

Ace in every way, would highly recommend Paul. He made 2 rooms into 1 for us and matched coving and picture rail, build cabinets to match existing. You would never realise it was two rooms. Also completed a complete bathroom refit expertly and redecorated bedrooms. Saving up so I can get him back to get the rest of the house to look the same.

All Building work undertaken from new builds to loft extensions.

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Reviewed by Mario on 19/2/2022

Very happy with Catalin and his team! Renovation of my 2 bedrooms was well done! Humble guys, they don’t talk too much just come do their job and leave. Catalin is very understanding and approachable, understands the needs and the struggle of his customers and helps them. Also very good communication, he responds to his call/messages within an hour if not immediately. They did few small jobs which was not part of the quote for free!I would recommend him to friends and colleagues. Reasonable prices.

GM Construction Services & Solutions is a family business based in the South East of England. The partners have over 35 years experience in construction and architecture, we provide a professional service, quality workmanship and value for money.

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Reviewed by Steve on 26/7/2014

Julian and his team were the best building experience we have ever had ---without doubt. Julian is incredibly friendly and helpful working with us closely throughout the build to check we were kept in the picture, happy satisfied and on budget. Julian's team of workers were the most friendly and hard working we have ever experienced, always ready to meet our requests. We are delighted with the quality end result and would not hesitate to recommend to friends and family alike. 5 stars all round!

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