10 Best Builders in Swindon for 2026

🏗️ 10 businesses · 📍 Swindon
✓ Reviewed regularly · ✓ Updated 4 September 2026
Mark Reid
Written by Mark Reid, Trades Editor · Verified 4 September 2026
Swindon's housing stock is a real mix, which makes hiring a builder here a bit different to a purely Victorian terrace city. You've got the older streets around Old Town with their period brick and slate roofs, the railway cottages near the works, and then huge swathes of newer estates in Wichelstowe, Redhouse and Haydon End with newbuild timber frame and box gutters. That variety means a builder working in one part of town might be dealing with lime mortar and subsidence-prone clay soil, while a job three miles away is all about extending a 1990s estate house with cavity walls. Loft conversions are common in the older areas where roof pitches allow it, and rear extensions or garage conversions turn up a lot on the estates where side access is decent. Anyone quoting for work locally needs to know which end of that spectrum they're dealing with.

The businesses on this page are pulled from public business listings and ranked mainly by review rating and review count, with a small lift given to those showing a working website and phone number. We check each business's homepage to confirm building work is genuinely what they do day to day, which keeps plumbers, electricians and other unrelated trades off this particular list. Listings flagged as permanently closed get removed automatically as part of that process. Where you spot a Trust Verified badge, that business has gone further and passed our full verification, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information; our How We Verify page sets out exactly what that involves. For any business without the badge, those checks haven't been done by us, so it's worth doing them yourself before you commit to anything.

Before booking, ask to see proof of public liability insurance and, if the job involves gas or electrics, confirmation of the relevant Gas Safe or NICEIC registration for whoever's doing that part. For anything structural, like removing a chimney breast or knocking through a wall, ask whether building control sign-off or a structural engineer's calculations are needed, and get that in writing as part of the quote. It's also sensible to ask for photos of similar jobs they've completed nearby, and to check how they handle waste and skip permits if you're on a residential street with parking restrictions. Getting two or three quotes for anything above a few hundred pounds is normal practice and gives you a proper feel for what's a fair price versus an inflated one.
How We Select & Rate The Best Builders in Swindon

Ranking is driven primarily by review rating and review count from public business listings, with a small lift for businesses that show a working website and phone number. We check each business's homepage to confirm building work is what they primarily offer, which filters out unrelated trades. Permanently closed listings are removed automatically. Businesses marked Trust Verified have additionally passed our full verification, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information; see our How We Verify page for the full list. Other businesses on this page haven't been independently verified by us, and inclusion here isn't an endorsement. Always carry out your own checks before hiring.

Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →

Quick Comparison: Builders in Swindon

Our Top Picks

1
Construction Edge Swindon Ltd
Not Verified
★★★★★ 5.0 (21 reviews)
Swindon 07999 800088

A perfect five-star record from 21 reviews sets Construction Edge Swindon Ltd apart among kitchen fitters in the area. The company handles fitted kitchen installations, from cabinetry to worktops, for homes across Swindon. Consistent feedback across every review suggests a level of reliability that clients have come to expect job after job.

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2
Prestige Loft Conversions
Not Verified
★★★★★ 4.8 (21 reviews)
Swindon 07776 030477

A 4.8 rating from 21 reviews puts Prestige Loft Conversions among the more consistently well-regarded builders in Swindon. The firm specialises in loft conversions, covering the structural work, insulation and finishing needed to turn roof space into usable rooms. Enquiries can be made through their website for anyone considering extending upwards rather than out.

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3
DBX Construction Ltd
Not Verified
★★★★★ 4.9 (12 reviews)
Swindon 07877 765945

Swindon and the surrounding area fall within reach of DBX Construction Ltd, a builder handling extensions, renovations and general construction work. The SN1 postcode base keeps response times manageable for local clients, and a 4.9 rating from 12 reviews points to consistent workmanship on completed projects.

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4
S A S Rope & Rail Ltd
Not Verified
★★★★★ 5.0 (7 reviews)
Swindon 01793 644908

A perfect 5 from seven reviews sets S A S Rope & Rail Ltd apart among Swindon builders. The consistency of that feedback suggests reliable workmanship on the building projects it undertakes, rather than a one-off stroke of luck. Based in Swindon, the firm takes on general building work for local clients.

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5
Dreams on the Wall Building Services Ltd
Not Verified
★★★★★ 5.0 (6 reviews)
Swindon 07400 184348

Families across Swindon extending or renovating their properties call on Dreams on the Wall Building Services Ltd for general building work. The firm has built a small but consistent reputation locally, holding a five star rating from six reviews. Work is carried out to suit household needs rather than one-size-fits-all projects.

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6
Crow's Nest Building Services
Not Verified
★★★★★ 5.0 (5 reviews)
Swindon 07432 119819

Full bathroom refits, including tiling, plumbing alterations and fitted storage, form the core of Crow's Nest Building Services' work in Swindon. The firm has built a small but perfect record, with five reviews all rating the work at five stars. Jobs range from straightforward suite replacements to reconfigured layouts requiring structural changes.

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7
APM BRICKWORK Swindon
Not Verified
★★★★★ 5.0 (5 reviews)
Swindon 07830 937599

APM BRICKWORK Swindon works as a building contractor specialising in brickwork, covering extensions, garden walls and repointing across Swindon. The firm has built a small but perfect record, with five reviews all rating it five out of five. Enquiries can be made through its website for quotes on upcoming projects.

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8
Bate & Sons Construction Ltd
Not Verified
★★★★★ 5.0 (3 reviews)
Swindon 07543 902100

Bate & Sons Construction Ltd works as a builder based in Swindon, covering general building projects from small repairs to larger structural work. The firm operates under a family name, suggesting continuity across the jobs it takes on. Enquiries can be made through its website for further details on current availability.

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9
Oakridge Building Contractors Ltd
Not Verified
★★★★★ 5.0 (3 reviews)
Swindon

Families across Swindon extending or renovating their properties make up much of Oakridge Building Contractors Ltd's workload, covering everything from loft conversions to kitchen rebuilds. The firm operates in the SN3 area, working directly with households to plan projects around daily routines and existing structures. Details on current services can be found via their website.

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10
Donovan Construction
Not Verified
★★★★☆ 4.0 (4 reviews)
Swindon 01793 674874

Donovan Construction is a building firm operating in Swindon, covering general construction and building work for domestic and commercial clients. Work is organised directly with clients from initial enquiry through to completion, with further details available via the company's website.

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Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. 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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Frequently Asked Questions

How much does a builder cost in Swindon?
It depends heavily on the job. A single-storey rear extension around 15 to 20 square metres typically runs from £25,000 to £45,000 including materials, while a loft conversion in an Old Town semi might sit between £35,000 and £55,000 depending on roof structure and whether dormers are needed. Smaller jobs like a garden wall rebuild or a bathroom strip-out can be £1,500 to £4,000. Labour rates for general building work in Swindon usually sit around £180 to £280 a day per tradesperson. Prices swing on materials, access, and whether structural work or building control involvement is needed, so getting two or three quotes for anything substantial is worth the time.
Do I need planning permission for an extension in Swindon?
Many single-storey rear extensions fall under permitted development rights, but it depends on the size, your property's history and whether it's in a conservation area, which applies to parts of Old Town. Swindon Borough Council's planning portal lets you check your address, and a decent builder or architect will usually flag early on whether an application is needed. Even where planning permission isn't required, you'll still likely need a Certificate of Lawful Development or building control sign-off, so ask your builder to confirm what paperwork applies before work starts.
How long does a typical extension or loft conversion take?
A single-storey extension usually takes 8 to 12 weeks from groundworks to finishing, weather and material lead times permitting. Loft conversions tend to run 6 to 10 weeks, though older Swindon roofs with unusual pitches or asbestos in the felt can add time. Ask for a written schedule with key stages, like when the roof goes on or first fix electrics happen, so you can see whether the job is on track as it progresses.
Should I use a builder based in Swindon or one from further out?
A local builder tends to know the quirks of the area, things like which streets have clay soil prone to movement, or which postcodes fall inside conservation area restrictions. They're also easier to get back on site for snagging without a big call-out charge. That said, distance matters less than track record, so don't rule out a firm from Chippenham or Marlborough if their reviews and past work stack up.
What should be included in a written quote?
A proper quote should break down labour and materials separately, state the payment schedule, list what's excluded (skip hire, scaffolding, waste disposal are common ones), and give a rough timeline. It should also confirm who's responsible for building control applications if relevant. Avoid vague one-line quotes with a single total figure, as these tend to lead to disputes over extras later on.
How do I check a builder is right for my job before booking?
Ask to see their public liability insurance certificate and check it's current, not expired. Request references or photos from at least two recent jobs similar in scope to yours, ideally ones you can visit or call about. Check Companies House if they're a limited company, to see how long they've been trading. For anything involving gas or electrics, ask for the specific engineer's registration number and verify it directly with Gas Safe or NICEIC rather than taking their word for it. Finally, read through recent reviews yourself rather than relying solely on the overall star rating, as recent feedback tells you more about how they're performing now.