CSCS Certified
City & Guilds
Gas Safe Registered
NICEIC Approved
Trusted Manchester builders specialising in extensions, loft conversions, full renovations and HMO conversions. Fully managed projects, clear quotes with no hidden costs, and dedicated oversight from start to finish.
Single-storey, double-storey, side return and wrap-around extensions. Typical builds in 8–16 weeks.
ExploreDormer and rooflight conversions — bedrooms, en-suites, offices with bespoke staircase design.
ExploreFull house refurbishments, kitchen & bathroom upgrades, and HMO/Airbnb conversions.
Explore
CSCS Certified
City & Guilds
Gas Safe Registered
NICEIC Approved
Every project is fully managed in-house — materials, trades and timelines coordinated from day one to handover.
CSCS, Gas Safe, NICEIC and City & Guilds certified. Every job aligned with UK building regulations.
Transparent pricing, no hidden costs. You know exactly what you're paying for, before we lift a hammer.
Realistic schedules, milestone tracking and a dedicated project manager keeping every trade on track.
Comprehensive cover and 30+ years of combined hands-on experience across every Manchester postcode.
KWS Builders Ltd is a family-run building company based at Universal Square in Higher Ardwick, serving homeowners across Manchester, Salford, Stockport, Oldham, Levenshulme, Cheetham Hill and Greater Manchester.
With 30+ years of combined experience and full accreditation across CSCS, Gas Safe, NICEIC and City & Guilds, we specialise in turning ageing terraces, semis and detached homes into bright, modern spaces — from full house renovations to ambitious extensions and loft conversions.
From planning permission and architectural drawings to the final coat of paint — every service delivered in-house under one project manager.
Single-storey, double-storey, side return, wrap-around. Open-plan kitchen-diners, family rooms — typically 8–16 weeks.
Get a QuoteDormer and rooflight conversions. Extra bedrooms, en-suites and home offices with custom staircase design.
Get a QuoteFull house refurbishments. Kitchens, bathrooms, rewiring, replumbing — bringing tired properties back to life.
Get a QuoteLayout reconfiguration, multiple en-suites, partitioning and finishes built for landlords and short-let investors.
Get a QuoteTurn forgotten space into a home office, gym, utility room or extra bedroom — fully tanked and finished.
Get a QuoteGroundworks, foundations, structural, roofing, brickwork, plastering, electrics, plumbing — turnkey delivery.
Get a QuoteWet underfloor pipe systems with floor screeding — quietly efficient comfort under every kind of finish.
Get a QuoteArchitectural drawings, planning permission applications and building regs — handled before a brick is laid.
Get a QuoteReal feedback from Manchester homeowners we've worked with — from terraces in Levenshulme to four-beds in Wigan.
KWS Builders completed a loft conversion with dormer for us in summer 2024. They worked to schedule and were clean and tidy. The internal finish looks excellent and they created a fantastic double-winder staircase. Communication was outstanding throughout — we always felt heard and looked after.
Fantastic group of professionals — always friendly and respectful. Highly recommended! They did our imprinted concrete driveway and front porch and I'm very happy with the end result. Tidy, on-time and a great finish.
I needed a full renovation on my four-bedroom house in Wigan. The job involved two new WCs (en-suite and downstairs), an extension to my bathroom, a new planned kitchen, and the rewall and rewiring of my utility room. KWS handled everything brilliantly.
Whether it's a single-storey extension, a dormer loft, or a full house renovation — book a free, no-obligation consultation and quote with our team.
Tell us about your project — extension, loft conversion, renovation, HMO conversion or new build — and we'll get back to you with a clear, no-obligation quote.
If your question isn't answered below, give us a call or drop a WhatsApp message — we're happy to chat through any project, big or small.
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