Trusted Builders
in Swansea
- Fully vetted and reviewed Swansea builders
- Extensions, loft conversions, kitchens, bathrooms, roofing, driveways & solar installation
- Free quotes — no commitment required
- Work guaranteed, fully insured tradespeople
What Our Swansea Builders Do
All services →Single-storey, double-storey, rear and side extensions built to your design.
Velux, dormer, hip-to-gable and mansard loft conversions in Swansea.
Full kitchen redesign, supply and fit by experienced Swansea kitchen fitters.
Luxury and budget bathroom installations. Full project management available.
Block paving, resin, tarmac and concrete driveways with fast turnaround.
New roofs, repairs, flat roofing and emergency call-outs in Swansea.
Solar panels, battery storage and solar thermal systems installed by vetted Swansea specialists.
Emergency repairs, boiler replacements and full bathroom plumbing by CIPHE/APHC-verified plumbers in Swansea.
Full rewires, consumer units and EV chargers installed by NICEIC/ECA-registered electricians in Swansea.
Interior and exterior painting, wallpapering and full-house repaints by PDA and Dulux Select-accredited decorators.
Internal doors, fitted wardrobes and staircases by BWF and Institute of Carpenters-qualified joiners in Swansea.
Fencing, patios and full garden design & build by BALI and APL-accredited landscapers across Swansea.
Single, double, integral or detached garage conversions in Swansea — full building regs sign-off included.
OZEV-approved EV charger installers in Swansea — 7kW, 22kW, tethered, untethered and PV-linked options.
Domestic, commercial & chimney scaffolding hire in Swansea — erected, inspected and dismantled by CISRS-carded crews.
Mini, builders & RoRo skips delivered across Swansea — permits arranged and licensed waste carriers.
Home, office & long-distance removals in Swansea — packing, storage and insured BAR-member movers.
Combi swaps, system boilers and full conversions in Swansea by Gas Safe registered engineers.
Up-and-over, insulated roller and automated electric garage doors fitted across Swansea.
uPVC, aluminium and heritage double glazing in Swansea — FENSA registered installers.
Party walls, full rooms and floor/ceiling acoustic systems in Swansea, built to Part E.
Split, multi-split and ducted air conditioning installed across Swansea by F-Gas registered engineers.
Architects and architectural designers for extension plans, loft drawings and planning applications across Swansea.
Extensions, renovations, structural work and complete building projects with trusted Swansea builders.
NSI & SSAIB approved installers fitting bells-only, monitored and smart burglar alarms across Swansea.
Why Choose BestBuilders in Swansea?
Swansea has a thriving home improvement market driven by a strong local economy and a mix of Victorian terraces, post-war housing and contemporary developments. Finding the right builder is key to any successful project.
Every builder in our Swansea network is thoroughly vetted before joining BestBuilders. We verify insurance cover, check trade memberships with bodies such as the FMB and CIOB, and require a minimum of five real customer reviews.
From a small bathroom refurbishment to a major double-storey extension, our vetted Swansea builders cover the full range of residential projects. Request your free quotes today and compare options before making any decisions.
Start My Free Quote →Average Building Costs in Swansea
| Internal door hanging | £ 400 – £1,325 |
| Full house rewire | £ 3,100 – £7,000 |
| Fencing (per 25m) | £ 625 – £2,200 |
| Whole-house interior repaint | £ 1,300 – £3,100 |
| Emergency repair | £ 110 – £310 |
| Solar Panel System | £ 4,500 – £8,500 |
| Fitted wardrobes | £ 1,600 – £5,300 |
| Consumer unit replacement | £ 400 – £800 |
| Patio installation (25m²) | £ 1,750 – £5,700 |
| House exterior paint | £ 1,600 – £3,950 |
| New bathroom plumbing | £ 1,050 – £3,100 |
| Solar + Battery Storage | £ 8,500 – £15,000 |
| Staircase installation | £ 1,600 – £4,850 |
| Home EV charger install | £ 700 – £1,575 |
| Full garden design & install | £ 2,600 – £10,600 |
| Wallpapering per room | £ 300 – £750 |
| Boiler replacement | £ 1,600 – £3,500 |
| Solar Thermal System | £ 3,500 – £6,500 |
Indicative prices for Swansea area. See full cost guides →
Swansea Homeowners Trust BestBuilders
Jack-and-Jill shared bathroom in Swansea, South Wales. Tanked the wet area properly, large-format porcelain tiles, frameless glass screen. Job done for £9230 over a fortnight. NICEIC Part P signed off the new lighting circuit and shaver socket. Cleanest job we have had in this house in years.
Re-roofed both pitches plus new ridge on our Edwardian terrace in Swansea. Full underlay replacement, new GRP valley details and a chimney lead saddle. Total £9160 over 8 working days. Properly clean site, all old tiles removed and recycled, no nails left on the drive.
Marshalls Drivesett Tegula paving in Swansea - 57m² covered. Type-1 sub-base compacted to 150mm, geotextile membrane, then the wearing course. Job done for £8520 with matching path included. Drive walkable next morning, fully cured by the weekend.
Swansea Builder FAQs
Plan Your Project in Swansea
Whether you're researching costs, checking planning rules, or comparing builders before you commit, our editorial team has produced these guides to help Swansea homeowners make informed decisions.
Browse Specialists Nationwide
Builders Near Swansea
We also cover builders in towns and areas surrounding Swansea.