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Craig got in touch quickly, gave me a rough estimate over the phone and answered all my questions. Surveyor arrived on time, gave instant quote. Price was good. Michael and (another) Craig turned up to do the job on the day, time given. Good, tidy job. Can't fault anything, from start to finish!! Would recommend!

Mary

George and his team are experienced builders, replaced my front door with a custom frame/sidelights and raising the floor level in the hallway quite quickly - in fact, they were the only who came next day, gave a quote straightaway and were ready to start in just couple of days. They also had all the necessary tools and materials, were ready to buy something additional quickly on the day - if further adjustments were required to fit everything as I asked. Thanks a lot for your help, guys!

Dmitry

Highly recommend. These guys did a fantastic job of constructing our pergola and decking. Very hardworking and reliable. The job was completed in the time frame agreed and to a very high standard. We would 100% use them again.

Holly

Browse Cellar & Basement Conversion specialists

Take a look at our Cellar & Basement Conversion specialists profiles, read reviews and request quotes directly.

we are a small building company with over 30 years experience . our work covers extensions , loft and garage and cellar conversions plumbing and heating and u.p.v.c products.

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Reviewed by Wendy on 7/6/2019

Commissioned C and J developments. To build an attached garage. At the start of the project we talked through any issues as they arose and agreed how they would be rectified. However as build progresssed the quality of work deteriorated Brickwork bowed in side and rear walls. Joists for garage roof cut at different lengths and not cut to match the angle of the wall one joist packed out with old pieces of wood. Walls either side of rear door not aligned. Stopped work due to poor standard of workmanship

We are a midlands based building company who specialise in renovations, extensions and upgrades to your property. We also carry out all general repairs. We have many year’s experience with time served tradesmen who are fully qualified in all aspects of work required for your project, and we carry out all projects with our own in house team members.

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Reviewed by Sally on 25/1/2026
CMT BUILDS LTD avatar

CMT BUILDS LTD

Cellar & Basement Conversion

Established in 2017, with 22 years experience of delivering projects big and small. With the collaboration of trades to much more. CMTBUILDS is motivated to deliver a project deliver a project to the very highest standards no matter how challenging. We believe in the customers inclusion and connection to the work, insuring the project is delivered to satisfaction. Our extensive quoting system, allows quotes to be read and understood very easily, with every single item measured and quoted for.

So I’ve been in the plumbing industry for around 10 years and do a vast majority of work including - First fixing Second fixing - Baths Showers Shower screens toilets Basin Vanity units And all other sanitary -I install boilers from combi boilers to heat only boilers -Vented cylinders to unvented cylinders -Bathroom installs from small ones to large ones . -ASHP Gas safe member G3 unvented cylinder certificate We also undertake a lot of bigger projects including HMOs , dental practise refurbishments, and also most recently we have just built a block of 14 flats.

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Reviewed by Cameron on 1/5/2026

Hi I have been in the building trade for over 25 years I have run my own business for 15 years I am very honest and totally reliable as my rating will prove .

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Reviewed by NOFX on 30/6/2025

The gentleman that came worked really hard to get it finished. He made a good job of it despite the poor instructors. So grateful for what he did.

D2 Buildings avatar

D2 Buildings

Cellar & Basement Conversion

Hi Im a builder with over 20 years experience in construction and decorating I have a team of 6 good workers wii do olmost evri job inside and out side home restaurants club's and mani more. No job to small or to big.

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Reviewed by Tanya on 26/2/2026

Mario came promptly, communicated well, did a fabulous job was really reasonably priced. I will Definitely call Mario any time I need a job doing. A great guy thank you.

Trading as intrendbuilders and tesscon co uk search us on google We are a friendly, hard working & affordable company who specialise in All forms of roofing and general building, maintenance, fencing and landscaping, waste removal, end of tenancy property clearances, wooden & laminate flooring and more in all areas of Birmingham & surrounding areas.

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Reviewed by james on 6/5/2026

kindly send me your contact details for more info about the contract oppurtunity

I have been doing building work now for the last 15 years I cover all types of building work to extensions, alterations conservatories, Landscapeing renovation, Plastering I enjoy doing different types of projects including the awkward stuff if your interested in any work being done please let me know I am happy to take a look and talk you through the jobs and different ideas Many thanks Andrew wall Asw Builder

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Reviewed by Alex on 1/1/2026

Excellent build quality, transparency and communication.

I have 30 years of building experience. I specialise in General property repairs and all aspects of building work, i.e. extensions, alterations and all aspects of refurbishment. All gas and electric is carried out by a qualified tradesmen.

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Reviewed by Rebecca on 26/11/2018

Very impressed with the work Peter completed for us. He was very friendly and reliable and kept us informed at all times. Work completed to a very high standard. Would highly recommend and would use again the future.

Affordable prices with a professional finish. We are a hardworking team with over 30 years experience

Y BOKA avatar

Y BOKA

Cellar & Basement Conversion

GMS avatar

GMS

Cellar & Basement Conversion

Gareth, the proprietor of GMS is a qualified wood machinist by trade and has over 25 years’ experience working within the construction industry. Gareth first started the business in 2005 with a view to provide clients across North Wales and Cheshire with kitchens. In the last 10 years the business has diversified and now accommodates a scheme of works within construction from kitchens to bathrooms, gardens to bedrooms, fire and flood damaged properties and more. Gareth employs several staff and subcontracts to NICEIC registered Electricians and GAS SAFE registered gas engineers. Therefore, GMS can offer project managing and the client only needs to converse with one trade [GMS] rather than multiple. Thus, taking the stress out of the job.

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Reviewed by Mark on 23/2/2018

Great communication and work carried out to a high standard.

I'm a fully qualified builder & plasterer working on old and new properties. We specialise in Garage Conversions start to finish. New UPVC Conservatories. Single Extensions. Full Renovations. Building Alterations. All building work. All plastering work. - Artex ceilings covered. Plaster-boarding. Skimming. Patching. Building alterations. - Knock-throughs. Lintel installs. Stud walls. Repointing. Refurbishments. Conservatories. - Start to finish. Extensions. - Start to finish to current building regulations. No job too big or small. Always work in the cleanest safest way possible. Top quality assured. Fully insured/public liability. Free quotes and advice.

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Reviewed by Barbara on 2/2/2026

So glad I chose Plaster Master for my garage conversion. I could not fault their work. Tom informed me of each stage of the work. I was asked to check each phase to ensure it was to my liking and I was. If you are thinking of having work done use this company as they are absolutely fantastic. I will use them again without blinking an eye.

the owner of j and I roofing . I have been in the roofing trade since learning of my grandfather as a young boy first climbing ladders I am a dedicated precise and trustworthy tradesmen with a group of five men working for me all polite with a great work ethic. I started my company back in 2015 and have been persistent with my jobs with customer satisfaction always kept at a high standard.

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Reviewed by Cherie on 21/3/2026

Very pleased with the work done, entire large garage roof replaced, Jordan and the team were very professional and hard working, got the job done sooner than expected as they worked longer days to get it done for us. Jordan took time to listen to our needs and our budget and did his upmost to keep the costs very affordable, without sacrificing on the quality of the work. Each day they ensured everything was clean and tidy. Would highly recommend and definitely use again if needed. Very happy customer

Marshall's Property Solutions are a friendly company with many skilled tradesmen that can cover a wide range of services from property maintenance to extensions and conversions. Our reputation is built on recommendation.

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Reviewed by Nathaniel on 25/2/2025

Marshalls Property Solutions were excellent to deal with from quote to completion. Dan helped us with a downstairs extension, he talked us through our options and delivered. The work was on time, well executed professionally, we would highly recommend !

With over 25years experience in the building industry specialising in extensions , new builds , conversions , and structural alterations we can provide you anything from a small brick wall to a full turnkey project with all certifications We always aim to elevate expectations.

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Reviewed by richard on 3/8/2017

insisted on sealing around conservatory roof with silcone sealant instead of fitting flashing even after repeatedly asking for flashing to be fitted, when roof inevitably leaked would not return to rectify and not returning phone calls/texts

At Surrey Hills Extend & Renovate we promise Quality and Craftsmanship. We take pride in delivering superior quality in every detail of our work, ensuring long-lasting and visually appealing results. We have a Customer-Centric Approach and your satisfaction is our top priority. We work closely with you, understanding your needs and preferences, to create spaces that truly reflect your vision.

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Reviewed by Julia on 27/6/2025

Very good and profesional

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