✓ Verified Google reviews·✓ Reviewed regularly·✓ Updated 29 May 2026
Written by Mark Reid,
Trades Editor ·Verified 29 May 2026
Newport's housing stock is genuinely varied, and that shapes what local builders spend most of their time doing. You've got Victorian and Edwardian terraces running through Maindee and Pill, large semi-detached properties across Rogerstone and Marshfield, and newer estates pushing out towards Llanwern and Langstone. That mix means builders here deal with everything from repointing original brickwork and replacing suspended timber floors to knocking through for open-plan living and fitting out full loft conversions. The clay-heavy soil common across parts of Gwent also means any groundwork, foundations or drainage work needs someone who knows what they're doing locally. A builder who works Newport regularly will understand the planning quirks of Torfaen's border areas and the specific requirements Newport City Council applies to properties in conservation zones like Pill.
The businesses on this page were drawn from third-party business listings and ranked by public review rating and review count, with a small lift given to those that show a working website and phone number. Before any builder appears here, we check their homepage to confirm that building work is what they primarily offer. That step keeps unrelated trades off the page. Any listings flagged as permanently closed are removed automatically and don't appear. Where you see a Trust Verified badge on a listing, that business has gone further and passed our full verification process, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information. You can see exactly what that process involves on our How We Verify page. Businesses without that badge have not been independently verified by us, and it's worth being clear about that distinction before you commit to anyone.
When you're getting quotes, ask each builder for a written, itemised breakdown rather than a single lump-sum figure. For any structural work, extensions, or anything that involves the building regulations process, make sure you see evidence they're registered with a competent person scheme or that they're happy for the work to be formally inspected and signed off by Newport City Council's building control team. Ask specifically who will be on site day to day, because the person quoting isn't always the person doing the work. Three quotes is a reasonable minimum for most jobs above a few thousand pounds. If a price looks significantly lower than the others, it's worth asking why before you accept it.
How We Select & Rate The Best Builders in Newport
Rankings on this page are driven by public review rating and review count pulled from third-party business listings, with a small lift applied to businesses that show a working website and phone number. We check each business's homepage to confirm that building work is what they primarily offer, which keeps unrelated trades off the page. Permanently-closed listings are removed automatically. Businesses marked Trust Verified have additionally passed our full verification covering qualifications, insurance, trading history, customer review history, and registered company information. See our How We Verify page for the full list. Other businesses here have not been independently verified by us, and inclusion is not an endorsement. Always do your own checks before hiring.
Positions 1–5 (Recommended and Featured) may be paid placements. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →
Residential and commercial clients across Newport turn to Phil Oakley Contractors for general building work. The company holds a 4.8 rating from 43 Google reviews, reflecting consistent delivery across local projects. Based in NP19, the firm covers a defined patch of south-east Wales rather than spreading thin across the region.
Rated 5.0 across eight Google reviews, Tekton Development Limited is a Newport-based building firm operating in and around the NP10 area. The company undertakes construction and development work for residential clients, with a consistent record of satisfaction noted by local customers.
Roofing sits at the core of what AM Building and Roofing offers, alongside a broader range of building work for residential and commercial clients in Newport. Based in the NP18 area, the company handles projects from roof repairs and replacements through to general construction work. A combined building and roofing offer means clients can coordinate related trades through a single contractor.
Jaysim ProBuild LTD provides building services to customers in Newport and the surrounding areas. Operating from Somerton Road in the NP19 postcode area, the company has earned a 5-star rating from 5 verified customer reviews on Google. Their website at jaysimprobuild.co.uk offers further details about their construction and building work.
Residential and commercial properties across Newport are the focus of SD Maintenance Services Ltd, a building and maintenance company operating from NP19. The business carries a 4.0 Google rating across its reviews. Services cover the range of work typical of a general building contractor, from minor repairs to broader maintenance programmes.
Transparency notice: Recommended (#1) and Featured (positions 2-5) listings may be paid placements, so a business's fee affects whether and where it appears in those positions. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →
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Building costs in Newport vary widely depending on the work involved. Small jobs like internal partition walls typically cost £800-£1,500, whilst single-storey rear extensions range from £15,000-£25,000 depending on size and specification. Two-storey extensions usually start around £25,000 and can reach £45,000+ for larger projects. Loft conversions cost £12,000-£30,000 depending on complexity. Always get quotes from three builders to compare pricing and approach.
Do I need planning permission for building work in Newport?
Many smaller projects fall under permitted development rights, but Newport City Council has specific rules about extensions, particularly in conservation areas around the city centre. Single-storey rear extensions up to 6 metres (detached houses) or 4 metres (terraced houses) often don't need planning permission, but you'll still need building regulations approval for structural work. Your builder should advise on requirements, but check with the council's planning department if you're unsure.
How long do typical building projects take in Newport?
A single-storey extension usually takes 6-10 weeks from start to finish, whilst two-storey extensions typically require 10-16 weeks. Loft conversions often take 4-8 weeks depending on complexity. Weather can cause delays, particularly during Newport's wet winter months. Factor in extra time for planning permission (8 weeks minimum) and building control approvals. Reputable builders will provide realistic timescales and keep you updated on progress.
What insurance should builders have in Newport?
All builders should carry public liability insurance of at least £2 million, which covers damage to your property or injury to third parties. Many also have employer's liability insurance if they employ staff. For larger projects, consider asking about professional indemnity insurance. Some builders offer guarantee insurance through schemes like NHBC or Local Authority Building Control, which protects you if they cease trading before completing the work.
How do I handle building regulations in Newport?
Building regulations approval is separate from planning permission and covers structural safety, insulation, and drainage. You can apply through Newport City Council's building control department or use an approved inspector. Most experienced local builders will handle the application process and liaise with inspectors during construction. Expect several site visits during the work, particularly for foundations, structural elements, and final completion.
How can I verify a builder's credentials before hiring?
Check Companies House for their registration details and trading history. Verify insurance certificates directly with the insurer rather than relying on photocopies. Ask for references from recent local projects and drive past to see the quality of work. Check online reviews across multiple platforms, not just their website testimonials. Ensure they provide a registered business address, not just a mobile number, and get detailed written quotes specifying materials, labour, and timescales.
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