Swansea, Wales
12 Top Rated Builders in Swansea for 2026
12 builders in Swansea ranked by reputation.
Most Recommended Provider in Swansea
1
Crocker's Building
Top Rated ★★★★★ 5.0 (14 reviews) · Swansea
- Punctual and reliable building services
- Consistently tidy and clean work sites
- High quality workmanship on garden and extension projects
ExtensionsGarden Walls and StepsPatiosConservatoriesGreenhouses
2
Bardic Construction Limited
Top Rated ★★★★★ 5.0 (14 reviews) · Swansea
- Professional and courteous site staff
- Expertise in high-quality groundworks and reinstatement
- Reliable service for utility and construction projects
Industrial constructionCivil engineeringFacility managementNew buildsRefurbishments
3
No Limit Construction ltd
Top Rated ★★★★★ 5.0 (14 reviews) · Swansea
- Professional and reliable construction team
- High quality workmanship and attention to detail
- Clean and tidy site management
House RenovationsHouse ExtensionsGarage ConversionsLoft ConversionsRoofing
4
Herms Construction
Top Rated ★★★★★ 5.0 (12 reviews) · Swansea
- Efficient and timely project completion
- Professional and reliable building services
- Exceptional attention to detail and craftsmanship
RoofingRenovationsShop FitsExtensionsConversions
5
Astro Building Services
Top Rated ★★★★★ 5.0 (12 reviews) · Swansea
- Specialists in loft, barn, and garage conversions
- Professional project management and building regulation support
- Reliable, tidy, and highly skilled local building team
Garage conversionsBarn conversionsInternal building projectsExternal building projectsDesign and consultation
6
JM Building Contractors
Top Rated ★★★★★ 4.8 (20 reviews) · Swansea
- Professional project management and planning support
- High standard of workmanship on extensions and renovations
- Punctual and tidy site conduct
Loft conversionsNew buildsProperty extensionsRenovationsFencing and decking
7
WarmTec Home Improvements Ltd
Top Rated ★★★★★ 5.0 (7 reviews) · Swansea
- Exceptional workmanship and quality home improvements
- Seamless service with clear, friendly communication
- Highly recommended for windows, doors, and conservatories
Supply of highperformance aluminiumSupply of modernSupply of thermally efficientCustomisable options for windowsAdvanced glazing and insulation
8
K&R Construction Ltd
Top Rated ★★★★★ 4.6 (22 reviews) · Swansea
- Expertise in damp and timber reports
- Professional and reliable renovation services
- Excellent communication and project management
Damp survey reportsDamp diagnosisDamp repairSolving damp problemsPCA accredited property investigations
9
Premier Forecourts and Construction
Top Rated ★★★★★ 4.7 (12 reviews) · Swansea
- Excellent customer service provided
- Polite and friendly staff
- Consistently positive client experiences
Project managementInstallationMaintenanceServicingRefurbishment
10
Andrew Scott Ltd - Head Office
Top Rated ★★★★★ 4.6 (17 reviews) · Swansea
- Helpful and knowledgeable staff
- Generally positive customer experiences
- Easy to find head office location
Building projects residential commercialCivil engineering services roadsInfrastructure worksSmall termmaintenance schemesLarge complex multimillionpound projects
11
★★★★☆ 3.7 (7 reviews) · Swansea
- Dedicated and hardworking construction team
- Professional and polite staff members
- Efficient completion of garden projects
Residential building and homeCivil engineering solutionsCommercial design and buildDemolitionConversions
12
★★★★☆ 3.5 (14 reviews) · Swansea
- Professional project and charity support website
- Helpful and friendly site management teams
- Clean and well-maintained building environments
ConstructionDesignLand Acquisition and AppraisalsGroundworksResidential Property Development
Looking for a trusted builder in Swansea?
Browse Builders