South Wales

20+ Builders in Caerphilly

Local builders covering Caerphilly and surrounding areas. Also known as building contractors or construction firms. Real businesses, checked against public records. Free to browse.

23 verified builders · 4.9★ average across 378 Google reviews · 20 with website

Other trades in Caerphilly:
Builders nearby:
20
verified builders listed
15
Companies House registered
4.9★
avg Google rating
378
customer reviews combined

Browse builders in Caerphilly, South Wales. Every listing is sourced from public records and checked against Companies House and Google Business Profile. Ask for FMB or TrustMark credentials when choosing a builder, and verify them with the issuing body. All contact details are visible after a business claims its listing.

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20 businesses listed

Builder guides for Caerphilly

Builder costs in Caerphilly (2026 prices)
Real pricing data, job-type breakdowns and money-saving tips

Areas covered for builders in Caerphilly

Builders listed for Caerphilly typically cover the CF82, CF83 postcode areas and surrounding parts of South Wales. Service radius varies per business, many also work in adjacent towns and villages within the same postcode group.

CF82CF83

Including Bargoed, Gilfach, Aberbargoed, Caerphilly Town, Bedwas, Trethomas, Llanbradach and Ystrad Mynach.

Builders in nearby towns

Builder in CardiffBuilder in BarryBuilder in BridgendBuilder in PontypriddBuilder in Tonypandy

Common builders services in Caerphilly

Caerphilly Council covers the town plus the wider Rhymney Valley, older terraced stock often presents damp-proofing and chimney-pointing work alongside the headline trade. Building Regs sign-off goes through Caerphilly County Borough Council.

Listed builders in Caerphilly typically cover the following work. Scopes vary per business, request a free quote on any specific job above.

  • Underpinning and foundation work
  • House extensions (single and two-storey)
  • Conservatory and orangery installation
  • Internal wall removal (load-bearing)
  • Garage conversions
  • Damp and structural repairs
  • Loft conversions (dormer, hip-to-gable, Velux)
  • Renovations and refurbishments
  • New build construction
  • Project management

Not sure what FMB means or how to verify it? Read the plain-English definition →

Related guides

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Caerphilly Hvac

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Before you hire, Welsh regulations to know

Pre-hire checklist, verifying any Welsh tradesperson

Read guide →

TrustMark, FMB & builder vetting in Wales

Read guide →

Welsh Building Regulations 2026, extensions, conversions, council fees

Read guide →

Builders near Caerphilly

Builder in CardiffBuilder in SwanseaBuilder in NewportBuilder in BarryBuilder in BridgendBuilder in NeathBuilder in Port TalbotBuilder in Pontypridd

Other trades in Caerphilly

PlumbersElectriciansRoofersPainters & Decorators

Looking wider? Browse all builders across South Wales: covers Cardiff, Swansea, Newport, Barry and 15+ more towns.

Common questions about builders in Caerphilly

How much do builders charge in Caerphilly?+

Builder costs in Caerphilly vary by job type and complexity. For an accurate quote, request a free estimate from a listed business above. Most builders offer free site visits before quoting.

What accreditations should a builder in Caerphilly have?+

Reputable builders in Caerphilly should hold relevant accreditations such as FMB · TrustMark · NHBC. We do not verify accreditation body membership, so always ask to see credentials and check them against the issuing body's own register before hiring.

How do I find a reliable builder in Caerphilly?+

Browse the builders listed above, each has been added from public records and verified sources. Look for the Verified or Premium badge, check their accreditations, and read any reviews shown on their profile.

How quickly can I get a builder in Caerphilly?+

Response times vary. For routine work, most builders in Caerphilly can schedule within a few days. For urgent or emergency work, contact businesses directly, some offer same-day or 24/7 callouts.

Are builders in Caerphilly regulated?+

Yes. Depending on the trade, builders in Wales must comply with UK building regulations and may require registration with bodies such as FMB · TrustMark · NHBC. Always confirm a tradesperson's credentials before work begins.

Do builders in Caerphilly cover surrounding areas?+

Most builders listed for Caerphilly also cover nearby towns in South Wales. Service radius varies, check each business profile for their declared coverage area, or use the "Builders nearby" chips at the top of this page to browse adjacent towns directly.

Is it free to use besttrades.wales to find a builder?+

Yes, completely free for homeowners. No booking fees, no sign-up required to browse listings or request quotes. Tradespeople pay nothing to claim their listing either. besttrades.wales is an independent Welsh trade directory, not a paid lead-resale service.

How is a builder on besttrades.wales verified?+

Every listing is cross-checked against public records: Google Business Profile for review history and location, and Companies House for active registration where applicable. We do not check accreditation body membership — ask the business for its registration number and verify it on the issuing body's own register.

All trades in Caerphilly →·Builders regulations guide·Best builders in Caerphilly

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