Which Builder Should You Choose in Cardiff?

Review 13 local building contractors in Cardiff and check what each company offers. Read customer feedback, compare business information and shortlist builders who handle the type of extensions, renovations or construction work you need.
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Gentles Construction
17 Years
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Gentles Construction offers comprehensive building services including home extensions, loft conversions, new builds, and commercial projects. Established in 2009, we combine 23 years of expertise with a client-focused approach to deliver high-quality, value-adding solutions across South Wales.
Home Extensions Loft Conversions New Builds
High standard of workmanship Fully insured up to 10m Expert guidance throughout projects
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Gallery Loft Conversions
12 Years
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Gallery Loft Conversions specialises in professional loft conversions, domestic extensions, and construction projects across South Wales. With expertise in design and build solutions since 2014, we deliver tailored home improvement services that maximise space and property value. Our comprehensive approach covers every stage from initial consultation to final decoration.
Loft Conversions Domestic Extensions Design Service
Fantastic workmanship Professional team Stress-free process
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Mike Payne Plumbing
Emergency
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Mike Payne Plumbing provides expert plumbing and bathroom installation services across Cardiff and South Wales. We specialise in complete bathroom design and installation, including all supporting plumbing, tiling and ceiling cladding work, with over 15 years' experience. Our personal approach ensures direct delivery of high-quality services without additional contractors.
Bathroom Installation Plumbing Services Ceiling Cladding
Superb job High standard Fair and transparent
Direct Maintenance Contractors is a Cardiff-based building services company specialising in extensions, roofing, property maintenance, and refurbishments. With a focus on quality craftsmanship and customer satisfaction, we deliver tailored solutions for domestic and commercial properties. Our experienced team ensures projects are completed efficiently, using durable materials and adhering to industry standards.
Extensions Bathroom Installation Roofing Services
Highly recommended Professional service Prompt repairs
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A M L Scaffolding
46 Years
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A M L Scaffolding, established in Cardiff since 1980, provides expert commercial and domestic scaffolding services across the UK. Our team delivers bespoke solutions for complex projects, including temporary roofs, restoration work, and safety netting. With accreditations such as SMAS SSIP and Alcumus Safecontractor, we ensure compliance with rigorous health and safety standards.
Commercial Scaffolding Domestic Scaffolding Industrial Scaffolding
Rightacres Property Co is a Cardiff-based commercial real estate developer with five decades of experience creating bespoke office, hotel, and leisure spaces. We prioritise sustainable development through community engagement and innovative design. Our trusted partnerships and international perspective deliver projects that meet modern business needs while benefiting future generations.
Commercial property development Office space construction Hotel developments
Genuine trusted partnerships Positive community impact Sustainable development focus
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Loft Pro
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Loft Pro specialises in professional loft conversions across Wales and the South West. With 28 years of expertise, we offer tailored solutions including 3D design visualisation, structural innovations like our patented Joist End Support system, and full project management from planning to completion. Our services enhance property value while minimising disruption to homeowners.
Loft conversions 3D design services Staircase installation
Faultless 5 star service Doubled the size of our house Minimal disruption during construction
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Fortis Construction
16 Years
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Fortis Construction provides premium construction, renovation, and refurbishment services across the Home Counties and M25 corridor. With over 30 years of industry expertise, we deliver high-quality residential and commercial projects, including extensions, listed property restorations, and interior makeovers. Our client-centric approach ensures transparent cost breakdowns, skilled subcontractor coordination, and a 95% repeat business rate through unwavering commitment to quality and satisfaction.
Renovation Refurbishment Extensions
Extremely pleased Totally professional Exceeded expectations
Madley Construction Management is a Cardiff-based construction firm offering design, project management, and building services across South Wales. Established in 1993, we specialise in residential and commercial new builds, refurbishments, and timber engineering structures. Our client-focused approach combines architectural expertise with skilled execution to deliver tailored construction solutions.
Extensions Timber Engineering Structures Refurbishment & New Builds
German Kitchens Cardiff designs and installs luxury German kitchens tailored to individual lifestyles. We specialise in creating functional, stylish spaces using high-quality materials and advanced technology. Our service includes personalised consultations, expert installation, and a showroom experience in Cardiff.
Kitchen Design Utility Rooms Worktops
Fantastic experience Knowledgeable team Quality kitchens
Starlight Loft Conversions specialises in creating high-quality loft conversion solutions across South Wales. With over three decades of experience, we deliver bespoke projects including dormer, Velux, and hip-to-gable conversions. Our family-run business prioritises customer satisfaction through reliable service, qualified tradesmen, and a commitment to completing projects efficiently with minimal disruption.
Loft Conversions Dormer Conversions Velux Window Conversions
Amazingly high standard Prompt and reliable Smooth process
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M & J Cosgrove
50+ Years
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M & J Cosgrove is a family-owned construction firm with over 55 years of experience delivering commercial, residential, and public sector projects across South Wales. Specialising in new builds, refurbishments, and conservation work, we combine traditional values with modern expertise to provide tailored solutions for local authorities, health organisations, and private clients. Our commitment to quality, safety, and collaborative partnerships ensures projects meet exacting standards from conception to completion.
Residential construction Commercial development Refurbishment projects
Cardiff Handyman Services provides comprehensive property maintenance solutions across Cardiff. Specialising in plumbing, gardening, painting, and general repairs, we deliver reliable, high-quality workmanship with competitive pricing and pensioner discounts. Our experienced team ensures every project receives meticulous attention.
Plumbing repairs Gardening services Painting & decorating
Newport (10.7 mi) Nailsea (18.2 mi) Bristol (25.1 mi) Bridgwater (25.5 mi) Pontyclun (7.9 mi) Pontypridd (10.9 mi) Weston-super-Mare (12.7 mi) Cwmbran (13.4 mi) Llantwit Major (14.1 mi) Tonypandy (15.2 mi)