Trusted Builders
in Caerphilly
- Fully vetted and reviewed Caerphilly builders
- Extensions, loft conversions, kitchens, bathrooms, roofing, driveways & solar installation
- Free quotes — no commitment required
- Work guaranteed, fully insured tradespeople
What Our Caerphilly 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 Caerphilly.
Full kitchen redesign, supply and fit by experienced Caerphilly 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 Caerphilly.
Solar panels, battery storage and solar thermal systems installed by vetted Caerphilly specialists.
Emergency repairs, boiler replacements and full bathroom plumbing by CIPHE/APHC-verified plumbers in Caerphilly.
Full rewires, consumer units and EV chargers installed by NICEIC/ECA-registered electricians in Caerphilly.
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 Caerphilly.
Fencing, patios and full garden design & build by BALI and APL-accredited landscapers across Caerphilly.
Single, double, integral or detached garage conversions in Caerphilly — full building regs sign-off included.
OZEV-approved EV charger installers in Caerphilly — 7kW, 22kW, tethered, untethered and PV-linked options.
Domestic, commercial & chimney scaffolding hire in Caerphilly — erected, inspected and dismantled by CISRS-carded crews.
Mini, builders & RoRo skips delivered across Caerphilly — permits arranged and licensed waste carriers.
Home, office & long-distance removals in Caerphilly — packing, storage and insured BAR-member movers.
Combi swaps, system boilers and full conversions in Caerphilly by Gas Safe registered engineers.
Up-and-over, insulated roller and automated electric garage doors fitted across Caerphilly.
uPVC, aluminium and heritage double glazing in Caerphilly — FENSA registered installers.
Party walls, full rooms and floor/ceiling acoustic systems in Caerphilly, built to Part E.
Split, multi-split and ducted air conditioning installed across Caerphilly by F-Gas registered engineers.
Architects and architectural designers for extension plans, loft drawings and planning applications across Caerphilly.
Extensions, renovations, structural work and complete building projects with trusted Caerphilly builders.
NSI & SSAIB approved installers fitting bells-only, monitored and smart burglar alarms across Caerphilly.
Why Choose BestBuilders in Caerphilly?
Home renovation activity in Caerphilly continues to grow year on year. The area's varied housing stock, from older stone-built properties to new-build estates, means there is always strong demand for skilled, experienced local builders.
Before any builder appears on our Caerphilly platform, we carry out a full vetting check covering public liability insurance, trade qualifications, company registration and verified customer feedback. Only builders who pass every stage are listed.
Our Caerphilly builder network covers extensions, loft conversions, kitchens, bathrooms, roofing, driveways and more. Get up to 3 free, no-obligation quotes within 24 hours and choose the builder that best fits your project and budget.
Start My Free Quote →Average Building Costs in Caerphilly
| 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 Caerphilly area. See full cost guides →
Caerphilly Homeowners Trust BestBuilders
Master en-suite remodel in Caerphilly, South Wales. Slimline ducted MVHR added at the same time, no condensation problem since. Final bill £8240 fitted, including all materials. Twelve-month workmanship guarantee in writing, not just verbal. Three months in and still nothing to fault.
Re-tiled the front pitch of our mid-terrace in Caerphilly. Old felt was sticky and brittle - replaced with proper Type-LR breathable membrane. Came to £12248 over 9 days on site. Insurance copy of the certs sent to our broker without me asking.
Tarmac driveway resurfaced in Caerphilly - 54m² covered. Excavated to 250mm because of soft clay subsoil, double layer of MOT-1. Final invoice £9250 all-in. 15-year manufacturer warranty plus 5-year workmanship guarantee in writing.
Caerphilly Builder FAQs
Plan Your Project in Caerphilly
Whether you're researching costs, checking planning rules, or comparing builders before you commit, our editorial team has produced these guides to help Caerphilly homeowners make informed decisions.