The quick way to find a local Cellar & Basement Conversion specialist in St. Katharine's & Wapping

P J Waterproofing

Cellar & Basement Conversion

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We are a family run and working business. Established over 30 years who pride ourselves on reliable and clean quality work. We are a sovereign approved contractor, an HM appointed PCA company. Specialists in Basement &Cellar Tanking Membrane/ Woodworm/Mould Control /Radon Gas / Thermal insulation/Rising Damp.We supply GPI insurance backed guarantees backed by National Warranties Qanw.

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Reviewed by David on 4/3/2014

Paul and his team were fantastic. My wife and I have always been a bit apprehensive about having people in our house when we are out, but we had no worries with Paul and his team. They were very hard working, reliable and trust worthy. I would absolutely use them again as the quality of what they have done is outstanding. They take pride in their work and it shows as they always made sure they cleared up at the end of each day. Thanks guys, the basement looks incredible.

ITMP

Cellar & Basement Conversion

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ITMP offers most of the services in property maintenance allover the London area. Started in 2016 as a family business, through the years our network of specialised professional has grown with the target to centralise, in one place, all the services required in a property, to offer our clients the solution for every of their needs, from everyday maintenance to complete new builds, and everything inbetween. While always delivering with professionalism the best quality product, we have kept our family business attitudine providing our clients with a friendly experience at the best price!

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Reviewed by Poppy on 10/1/2023

Excellent service, they helped me build a garden studio shed. At the start they help me realise my vision by creating 3d mock ups and offered advice on what type of design to go for. Friendly Highly professional On time They were very keen to make sure the job was perfect and went the extra mile to make that happen Would hire them again. Lovely people who did a great job. All the best!

PCN ELECTRICAL LTD

Cellar & Basement Conversion

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Our company offers comprehensive services including full house rewiring, extensions, handyman services, and various other building works.

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Reviewed by Martina on 25/9/2024

Christian was excellent! He finished a tiling, grouting and finishing when my previous contractor went AWOL. He has excellent attention to detail and was super tidy. I would have no hesitation in recommending and will be calling on him again should I need any more jobs completed. 5 ??

ALPHATEC LTD

Cellar & Basement Conversion

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Hi, This is Alphatec ltd. We have specialised team to take all types of building jobs. We are specialised in Bathroom fitting, Plumbing , electric , new builds & renovations

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Reviewed by Katy on 10/6/2025

Inder did a very good job of upgrading our upstairs bathroom and installing a toilet downstairs. He worked tirelessly and was very punctual. Great on communication too!

Ion Seremet

Cellar & Basement Conversion

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hello, I am a responsible person, I have more than 10 years of experience in construction, painting and decorating, flooring, tiling, carpentry, plumbing, and more... I do my best to keep the client happy... contact me if you want a good quote for your work! I Regards:ION

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Reviewed by Trish on 15/2/2026

Ion did a wonderful job on our bathroom. He completely removed the entire existing bathroom back to the joists and rebuilt a beautiful shower room. I found him to be honest, trustworthy, hardworking and reasonably priced. I couldn’t recommend him higher.

ZAMFIR LTD

Cellar & Basement Conversion

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I am a self employed, multi skilled handyman, I have over 30 years of experience in civil and residential construction, experience gained on sites around the world, such as: Italy, France, Belgium and Luxembourg, (Europe) Kuala Lumpur, Nagasaki, Mali , Singapore, (Asia) Sao Paolo, Rio de Janeiro, Salvador and Recife (South America). I'm in England to learn English better, and during this time I'm working to win. I can execute the whole range of construction works from the foundation of a house to the key. They have a team of collaborators of up to 8 people, all with good manual and building experience

DUMICON LTD

Cellar & Basement Conversion

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Construction company with main builder having over 16 years experience in the trades. Good prices and great quality work is ensured when we finish projects and all types of insurance certificates for this company are available on request.

AK Home Improvements

Cellar & Basement Conversion

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A one-stop-shop for all your home improvements & construction needs. We are team of professionals people with over 10 years of experience in all areas of building works. Our services include extensions, loft conversions, home improvements including but not limited to bathroom & kitchen installation, painting & decorating, plastering & skimming, wood flooring, carpet fitting, tiling, carpentry, electrical and plumbing services. We believe in providing a excellent service at an affordable price.

Toma Lup

Cellar & Basement Conversion

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We are a small group of professional builders with 15 years experience specialized in building and refurbishment properties for people that don’t want a lot of hassle and headache when dealing with builders, so we are providing all the services from start to finish and ensure everything is done to high standards while keeping the client satisfied on the price.

Derick's Home Improvements

Cellar & Basement Conversion

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I prioritise in providing a good quality bespoke service for customers. I have more than 30 years experience in the business with a large clientele. I specialise in home renovations, no job is too big.

New Builds

Cellar & Basement Conversion

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Hi, I'm Nick from Newbuilds. Newbuilds is a family run business, which has an array of building projects under our belt, from small repair jobs to extensions and Newbuild projects. All our work force are highly trained in numerous trades. We pride ourselves on our quality of work, and good customer care, leaving homes as clean and tidy as our own. With over 50 years experience, we guarantee you're in great hands.

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Reviewed by Steve on 8/3/2026

Nick and his team were superb. The garden wall was restored, and they cleared up thoroughly - all to the highest of standards. I would have absolutely no hesitation in using Nick again.

Gulf Builder UK LTD

Cellar & Basement Conversion

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Gulf Builder Ltd company made up of a highly skilled team of professionals who will take all the hard work out of your house refurbishment in London. Whether you want to refurbish your entire house or a single room. You can read below what else we do; - Transforming Spaces, Inspiring Lives. - Revive, Renew, Redefine. - Renovate and Elevate. - The Art of Renovation. - Design. Renovate. Inspire. - Your Vision, Our Expertise. - Discover the Joy of a Perfectly Renovated Space - Turning ideas into action. - Built on trust, focused on quality.

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Reviewed by Hoss on 5/8/2024

I was looking for a builder to do an extension at back. Gulf Builder provided me with advice on materials, exact cost and time. They have done a fantastic job in short span of time and delivered the job to my absolute satisfaction. Rare to find.

Decor-Plast

Cellar & Basement Conversion

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Our company Construction and Renovation work of 25 years. At this time, we have gained a wealth of experience backed by references received from our customers. Cost estimates are free of charge. Professionalism guaranteed.

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Reviewed by Sarah on 2/11/2016

Greg is a very helpful and professional. Arrived when he said he would and gave sound advice on a very tricky guttering problem.

R&R Building Services

Cellar & Basement Conversion

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R&R Builders is a leader in providing value-added construction services to our customers by creating a successful partnership with them throughout the construction process. Our pledge is to establish lasting relationships with our customers.

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Reviewed by Eden on 31/10/2025

R&R done an excellent work replaced the whole bathroom including the flooring. Very professional, punctual and gets the job done at a reasonable price. Highly recommend him to anyone who is looking for bathroom work. Thank you, Eden & Kristian

Dry & Damp

Cellar & Basement Conversion

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Personally I’ve been in the building industry for 20 years as a team combined over a 100 years we specialise in damp proofing and drylining but normally take buildings from shells to finished plastered happy to work on price or day rates depending on what works for the customers also can guarantee and insure works when needed

Berberi Constructions

Cellar & Basement Conversion

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With over 20 years of experience in construction we want to get your project from conception to completion. Fast, trustworthy and efficient.

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Reviewed by Jermaine on 25/8/2020

Absolutely amazing tradesmen with very competitive pricing. transformed my 50m2 Driveway by tilling and installing aco floor drainage, great attention to detail and great finished product. Very highly recommended and definitely will have them returning for more work.

DD BUILDING AND LANDSCAPING

Cellar & Basement Conversion

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Professional & Affordable Building & Landscaping Services We've been experts in building and landscaping projects since 2013, ensuring reliability and excellence in every service we provide. We offer a wide range of professional services tailored to meet your specific needs. Whether you require comprehensive building solutions such as refurbishments, kitchen services, flooring, and porch services, or meticulous landscaping services including wood decking, driveways, astro turf, patios, and fencing installation, we've got you covered. With a proven track record of delivering excellence since 2013, and with our fully insured services, you can trust that your project is in capable hands, ensuring exceptional results every time. With us, you can relax knowing that your work is in good hands. We prioritise reliability and transparency, offering you peace of mind throughout the entire process.

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Reviewed by Victoria on 18/11/2025