The quick way to find a local Cellar & Basement Conversion specialist in Cardiff

Abertawe Roofing & Building

Cellar & Basement Conversion

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Our skilled team of professionals have extended experienced in a range of construction areas, You'll also have peace of mind knowing that we carry a wide range of industry accreditations. For any larger scale projects that require our reliable construction services, please contact us. We are able to work with you every step of the way to help you realise your goal, including all planning and development.. Ground drainage etc, right up to the roof groundworks new builds Plant Hire Extensions Patios Fencing Renovations / Refurbishments Garage conversions Alterations Decking Exterior cleaning Driverways/block paving Roofs Gutters & more.

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Reviewed by Alex on 1/3/2023

Very helpful, came over to look at the job and everything was ready to go for the start of the job later that day

Steadfast Structures

Cellar & Basement Conversion

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Hello and thank you for taking the time to look at our profile. We are a group of professionals multiskilled and look forward to helping you achieve your vision

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Reviewed by Chris on 2/7/2026

Unfortunately I can't leave no stars ad that is all this so called building company deserves.They are also unable to tell the truth in their response to Our review.No it wasn't a 3mm drop, when he went back to b+q to get more products to further his bodge up My Wife measured the drop(he claimed at the time it was 5mm.can't even remember his own lies)The drop was 13 mm.Ues He came back and had a 2nd attempt to rectify the bodged job,making an even worse mess.By this time We were both sick to death of him

ROOFTOP CONVERSIONS

Cellar & Basement Conversion

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ROOF TOP CONVERSIONS THE COMPLETE BUILDING COMPANY. WELLCOME TO RTC WE HAVE BEEN CARRYING OUT BUILDING WORKS FOR OVER 25 YEARS. HEAR ARE SOME OF ARE WORKS . LOFT CONVERSIONS+ HOME EXSTENSIONS+ GARAGE CONVERSIONS +

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Reviewed by Clive on 23/10/2023

Roger and his crew achieved a complete fire door and frame (with fitments) replacement in a single day. They left my flat clean and tidy and were away by 3.15pm. Great work

Darren Kelleher plumbing &maintenance

Cellar & Basement Conversion

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We are a small company based in cardiff with twenty years in the industry ,we cover any thing from a small leak to full installations of bathrooms and kitchens,we also incude tiling,plastering ,carpentry etc in our skill set.

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Reviewed by CRAIG on 24/7/2025

Darren did a great job on the bathroom. Would recommend for anyone considering hiring him

J Nengas

Cellar & Basement Conversion

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30 years of experience in all trades pluming, heating and all building works .plastering.tiling.and extensions.conservotorys..

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Reviewed by Edward on 3/9/2020

Jason and his partner fitter a new bathroom for me, including all new plasterboard etc as water had gotten behind the old tiles. They tiled the floor and walls for us also. The bathroom looks brilliant couldn’t be happier, more than happy to trust them when not at the property and to top it all off when they were finished I went out to my garage so that I could take all of the rubbish to the tip and they had beat me to it. Will be hiring again for my second bathroom shortly!

Pinestone Builders

Cellar & Basement Conversion

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Quality Building. Exceptional Standards. With extensive experience in the construction industry, Pinestone Builders provides high-quality building and property services throughout Bristol and the surrounding areas. We specialise in extensions, renovations, conversions, structural alterations and complete building projects, delivering workmanship that combines quality materials, attention to detail and professional project management. From carefully planned home extensions and contemporary renovations to structural works and complete property transformations, we take pride in delivering projects to a high standard from start to finish. Our Services * Single-storey and double-storey extensions * Home renovations and refurbishments * Loft and property conversions * Kitchen and bathroom projects * Structural alterations and steelwork * Brickwork and masonry * Roofing and associated building works * Property alterations and improvements * Complete building projects We work closely with our clients throughout every stage of a project, providing clear communication, professional advice and a reliable service. Where specialist work is required, we work alongside appropriately qualified trades and trusted professionals to ensure every aspect of the project is completed to the required standard.

Latest homeowner review

Reviewed by John on 30/10/2022

Reliable, honest and communicates well. Kevin has built a garage and single storey kitchen extension for a reasonable price. I hope to use him for other work in the future.