Construction Company in Merthyr Tydfil.

Design N Build serves Merthyr Tydfil and locations within roughly 15 miles, covering residential extensions, commercial fit-out, civils and full design-build. Accredited (CHAS, Constructionline), fully insured and locally mobilised — a Merthyr Tydfil site survey is booked within 24 hours of your enquiry.

In Merthyr Tydfil we deliver extensions, loft conversions, full renovations, new-build homes, commercial fit-out, civil engineering, groundworks, drainage and turnkey design-build. Every Merthyr Tydfil project is single-contract, fixed price and managed by a dedicated project manager from brief to handover.

Survey within 24 hours, fixed-price BOQ in 7–10 days, and Merthyr Tydfil site mobilisation usually 2–3 weeks after contract sign-off. Emergency or urgent commercial works can be brought forward where programme allows.

Yes. We hold £5M public liability cover, employer's liability insurance, professional indemnity, plus CHAS, Constructionline and SafeContractor accreditation — the standards required to deliver public-sector and commercial work across Merthyr Tydfil.

Costs in Merthyr Tydfil vary by scope: rear extensions £1,800–£2,800 per m², loft conversions £45,000–£75,000, commercial fit-out £600–£1,500 per m². You'll receive a fixed-price Merthyr Tydfil BOQ — never a vague estimate — after the free site visit.

Yes. We run pre-application advice, full planning submissions, Building Regulations applications and condition discharge with the local authority covering Merthyr Tydfil, plus party wall, CDM and statutory undertaker liaison. One team handles every approval.