Written by Mark Reid,
Trades Editor ·Verified 12 September 2026
Oldham's housing stock is a mixed bag, and that shapes the sort of builder work in demand across the borough. You've got the stone-built terraces around Uppermill and Saddleworth, solid Victorian semis in Chadderton and Royton, and newer estate builds out towards Shaw and Failsworth. Older properties often need work on stone pointing, damp-proof courses or replacing timber lintels, while post-war and newer homes tend to need extensions, loft conversions or kitchen knock-throughs. The hilly ground towards the Pennines also means some jobs involve extra groundwork or drainage checks that you wouldn't see on flatter sites closer to Manchester. Whatever the job, a builder who knows the local terraces from the newer developments off Broadway is usually a safer bet than one working blind.
The businesses featured here are pulled from public business listings and ranked mainly by review rating and how many reviews they've built up, with a small boost given to those showing a working website and phone number. We also check each business's homepage to confirm building work is genuinely their main trade, which stops plumbers, electricians or general handymen who happen to dabble in small building jobs from cluttering up the page. Listings flagged as permanently closed get removed automatically, so what you're seeing should reflect businesses that are actually trading. Where you spot a Trust Verified badge, that business has gone through our fuller check, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information. You can read exactly what that involves on our How We Verify page. For any business without that badge, treat it as a starting point rather than a finished decision, and run your own checks before booking.
Before you commit to any builder, ask to see proof of their current qualifications and, where relevant, membership of a trade body like the FMB or a Gas Safe registration if the job touches heating. Ask for references from recent jobs nearby, ideally something you can go and look at in person, not just photos. Get a written quote that breaks down materials and labour separately, and confirm who's responsible for skip hire, waste disposal and building control sign-off. It's worth getting two or three quotes for anything beyond small repair work, since prices for the same job can vary by hundreds of pounds between tradespeople. Check they carry public liability insurance and ask to see the certificate rather than just taking their word for it.
How We Select & Rate The Best Builders in Oldham
Rankings are driven mainly by review rating and review count from public business listings, with a small lift given to 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 keeps unrelated trades off the page. Listings flagged as permanently closed are removed automatically. Businesses marked Trust Verified have gone through our fuller 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 haven't been independently verified by us, and their inclusion here isn't an endorsement. Always do 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 →
Extensions and loft conversions make up much of the workload at KG Construction, a building firm based in Oldham handling structural work from groundworks through to finishing. Clients rate the firm 4.9 from 45 reviews, reflecting consistency across larger residential projects rather than one-off repairs.
Building work in Oldham falls to Medlock FRB, covering the sort of structural and general contracting jobs householders and small developers need seeing through from start to finish. Reviewers rate the firm 4.2 from 20 responses, reflecting steady work across the OL4 area rather than one-off jobs.
Families across Oldham looking to extend or renovate rather than move house make up much of D & K Construction N W Ltd's workload. The firm handles building projects from start to finish, and its five-star record from six reviews points to steady, careful work rather than volume.
Pakville Construction takes on extensions and renovations for older terraced houses around Oldham, where structural quirks and dated layouts often need careful assessment before work begins. The firm also handles smaller residential jobs, from loft conversions to full refurbishments, and has built up a 4.6 rating from ten reviews. Enquiries can be made through their website.
Families across Oldham looking for building work, from extensions to renovations, turn to Fyka Global Limited. Based in the OL8 area, the firm has built a small but flawless track record, holding a five out of five rating from five reviews. Its work covers general building projects suited to household needs rather than large commercial contracts.
Building work in Oldham is the focus for EcoBase Solutions Ltd, covering groundwork and construction projects for local clients. The firm has built up a rating of 4.6 from eight reviews, reflecting consistent standards across its jobs. Further details on the range of building services offered can be found via the company's website.
Boiler installation, air source heat pumps, and a full range of insulation work, including cavity wall, external wall, and underfloor, are the core services offered by ECO4 Energy Solutions Ltd in Oldham. The company operates under the ECO4 government scheme framework, directing its work towards energy efficiency improvements in domestic properties across the OL8 area.
Families across Oldham looking to extend or renovate their properties turn to Spyder Construction for general building work. Based in the OL8 area, the firm covers projects from extensions to full refurbishments, working directly with households to plan jobs around their needs. Details of past work and contact information are available on the company's website.
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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It depends heavily on the job. A small repair, like repointing a section of wall or fixing a leaking flat roof, might run £150 to £500. A single-storey rear extension of around 20 square metres in areas like Chadderton or Royton typically costs £25,000 to £45,000 depending on finish and whether you're adding bifold doors or roof lanterns. Loft conversions tend to sit between £30,000 and £50,000. Prices vary with material costs, access to the property and how busy the builder is, so getting two or three quotes for anything over a few hundred pounds is standard practice and will show you what's realistic.
Do I need planning permission for a building project in Oldham?
Many extensions and loft conversions fall under permitted development rights, meaning you won't need full planning permission, but there are limits on size, height and proximity to boundaries. Oldham Council's planning department can confirm whether your specific project needs an application, and it's worth checking before any work starts rather than after. If your property is in a conservation area, such as parts of Uppermill, the rules are stricter and it's best to ask early.
How long does a typical extension take to build in Oldham?
A single-storey rear extension usually takes 8 to 14 weeks from groundworks to completion, weather permitting. Two-storey extensions or loft conversions can take 12 to 20 weeks. Delays are common if there are issues with party wall agreements with neighbours, or if bad weather holds up groundworks and roofing. Ask your builder for a realistic timeline in writing before work starts, including key milestones like when the roof goes on and when first fix electrics happen.
Do I need a party wall agreement for building work in Oldham?
If your project involves work on a shared wall with a neighbour, such as many of the terraced and semi-detached properties common in Chadderton and Failsworth, you'll likely need a party wall agreement under the Party Wall Act. This applies to things like loft conversions with new steel beams resting on a party wall, or excavations near a shared boundary. A surveyor can draw this up, and it's worth sorting before work starts to avoid disputes partway through the job.
What should be included in a builder's written quote?
A proper quote should break down labour and materials separately, state the total cost including VAT if applicable, and specify a payment schedule tied to stages of work rather than asking for large sums upfront. It should also cover who's responsible for waste removal, skip hire and any building control fees. Ask for a rough start and finish date too. If a quote is just a single vague figure with no breakdown, that's usually a sign to ask more questions before signing anything.
How do I choose between builders in Oldham?
Start by checking recent reviews on public listings, but also ask each builder for photos or addresses of finished jobs nearby that you can go and see yourself. Confirm they hold current public liability insurance and ask to see the certificate. Check whether they're registered with a trade body like the Federation of Master Builders, and ask how they handle building control sign-off for structural work. Get at least two or three written quotes so you can compare like for like, and be wary of anyone unwilling to put timescales or costs in writing.
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