Serving Staines-upon-Thames & SurreyMon–Sun · 8am–6pm info@dabplasteringbuilding.co.uk07834 974462Facebook HomeAboutServicesPlasteringVenetian & Polished PlasterCeilings & Artex RemovalHouse RenovationsExtensionsLoft ConversionsGarage ConversionsMedia WallsGarden RoomsKitchensBathroomsExternal RenderingTilingFlooringCommercial Work AreasStaines-upon-ThamesEghamAshford (Surrey)ChertseySunbury-on-ThamesWeybridgeWindsorFelthamKingston upon Thames Our WorkReviewsContact07834 974462Get a Free Quote HomeServicesGarden Rooms Staines-upon-Thames · Surrey # Garden Rooms & StudiosBuilt From Scratch OrFrom Your Kit — Staines-upon-Thames. Insulated, wired, plumbed and finished to the same standard as the house. Home offices, gyms, therapy rooms, teenage dens — full-year usable, planning-friendly, delivered by one owner-led team. Get My Free Quote Call 07834 974462 5.0 rated · 9 verified Yell reviews£10M public liabilityFixed quote in 2–3 days 15+ Years in the trade 5.0★ Rated on Yell £10M Public liability 2–3d Quote turnaround 9 Surrey towns served The service ## Garden Rooms — The Short Version. A plain-English overview of what the DAB team delivers, who it's for and when it matters. No marketing filler. What it is A garden room is a purpose-built, insulated standalone structure in the garden — used year-round as a home office, gym, therapy or treatment room, art studio, music room, teenage den or guest space. We build fully from scratch (foundations up), or install and finish a supplied garden-room kit. Who it's for Home-workers permanently remote or hybrid, small business owners running client-facing appointments (therapists, coaches, PTs, hairdressers), families needing separated study space, and homeowners wanting a self-contained gym or hobby space away from the main house. When you need it When you'd like the space of an extension without the disruption inside the main house, when your loft or garage isn't suitable, or when the garden's already got the room and you'd rather build outside than reconfigure inside. Why professional help matters Cheap garden rooms don't last. Uninsulated single-glazed structures on a paving-slab base become saunas in summer, freezers in winter and rot within a decade. A properly built garden room with insulated floor, walls and roof, quality glazing and a real electrical spec is indistinguishable from an extension — for a fraction of the disruption. If it's left too long ## What Goes Wrong When Nobody Fixes It. The specific ways this job goes bad when it's ignored, DIY'd, or handed to the cheapest quote in the WhatsApp group. ### Damp and rot Rooms built directly onto slabs or without a proper DPC quickly draw moisture into the timber structure. Panels warp, floors bounce, and within 5–8 years the whole unit is failing. ### Unusable in temperature extremes Under-insulated garden rooms with low-spec glazing hit 30°C+ in summer and drop below 10°C in winter. You end up not using the room you paid for. ### Failed Permitted Development Garden rooms typically fall under PD, but exceed the 2.5m eaves height (within 2m of the boundary) or the 30m² area threshold and you're into full planning — with retrospective enforcement risk if you got it wrong. ### Unsafe wiring DIY-run garden-room electrics without an armoured cable, proper RCD protection, or an IP-rated distribution point are a legitimate fire and shock risk. Not the corner to cut. Our process ## Five Steps. Zero Guesswork. The exact system our team runs on every job — from your first message to the certificate in your handover pack. - 1 ### Site survey & design We measure the garden, check ground conditions, identify the best position for light and privacy, and agree the internal layout and finish. Drawings issued for PD sign-off or planning where required. - 2 ### Fixed quote & programme Itemised quote covering foundations, superstructure, roof, glazing, insulation, electrics (and plumbing where specified), plaster and decoration. Programme and completion date. - 3 ### Foundations & structure Concrete pads or screwed steel piles depending on ground conditions; insulated raft or beam-and-block floor; timber-frame walls with 100–150mm insulation; SIPs or warm-roof flat roof with 150mm PIR insulation. - 4 ### Weather-tight & first-fix Cladding fitted (Siberian larch, thermally-modified pine, western red cedar, composite or fibre-cement), doors and windows fitted, roof covered with EPDM or GRP. Armoured cable run from the house, RCD-protected sub-consumer unit, first-fix plumbing if required. - 5 ### Plaster, decorate & handover Interior boarded, plastered, decorated, flooring laid, second-fix electrics and plumbing completed. Building Regs handled where applicable (usually not required for a genuinely 'garden' outbuilding but always confirmed at survey). Why hire the DAB team ## Specific Wins. Not Vague Promises. What you actually get when you hire us for this job — measurable, provable, and reflected in every one of our verified reviews. - ### Year-round useful Properly insulated floor, walls and roof plus double- or triple-glazed doors and windows mean the room is warm in January and cool in July. - ### No main-house disruption The build happens outside. Your kitchen, bedrooms and daily life continue undisturbed — dust and mess stays in the garden. - ### Genuinely wired Armoured cable, IP-rated distribution, and a full spec of sockets, lighting and Cat6 data — not a stray extension lead through the shed door. - ### Design freedom Standalone structures aren't constrained by matching the main house's style. Larch cladding, black-framed glazing, green roofs — genuinely design-led options. - ### Kit-build or bespoke Bought a garden-room kit and don't want to assemble it yourself? We install and finish supplied kits at a fixed price. Prefer bespoke? We design and build from scratch. - ### Owner-led and £10M insured Same accountability as our house work — you're not buying from a website with no local presence. Deep detail ## Materials, Methods & Where It Applies. The specification-level answers the internet usually skips. ### Foundations Concrete pads or strip foundations on stable ground. Screwed steel piles (helical foundations) where roots or services rule out excavation — installed in hours, load-tested to spec, and reversible if needed. Fully insulated raft foundations for premium warm-roof, warm-floor builds. ### Walls and cladding Timber-frame studs at 400 or 600mm centres, insulated with mineral wool or PIR, breather-membraned externally and vapour-controlled internally. Cladding options: Siberian larch (naturally durable, silvers over 3–5 years), thermally-modified pine, western red cedar, composite (fibre-cement), painted feather-edge for a classic garden-building look. ### Roof and glazing Warm-roof flat roof with 150mm PIR and EPDM (Firestone or Classicbond) or GRP finish, aluminium fascia. Pitched roofs available for gabled or lean-to designs. Doors and windows: aluminium-framed sliders, bi-folds, or French sets — Origin, Schuco or equivalent. ### Services Armoured SWA cable from the main house consumer unit (typically 6mm or 10mm depending on load), sub-consumer unit with RCD protection inside the garden room, LED downlights, sockets, and USB-C outlets as spec allows. Cat6 for stable working data. Plumbing where a WC or kitchenette is wanted — hot-and-cold from the main house or from a dedicated electric water heater. ### Residential vs light commercial Most garden rooms are residential — offices, gyms, studios. Small commercial garden buildings (single-therapist treatment rooms, garden salons) are also common and follow the same build spec, with any change-of-use planning handled at design stage. Recent work ## Garden Rooms — On the tools. Where we work ## Serving Staines-upon-Thames & Surrey - Staines-upon-Thames - Egham - Ashford (Surrey) - Chertsey - Sunbury-on-Thames - Weybridge - Windsor - Feltham - Kingston upon Thames FAQ ## Garden Rooms — Straight Answers. The questions we're asked at almost every survey. Not on the list? Call 07834 974462 — the DAB team is happy to talk it through. How much does a garden room cost in Staines-upon-Thames?+Entry-level insulated garden rooms 12–15m² typically £22k–£30k. Mid-range 15–25m² with premium glazing and cladding £30k–£50k. Larger studio-plus-shower-room builds £50k+. Fixed on written quote after survey. How long does it take?+Most garden rooms complete in 4–8 weeks from breaking ground to handover, depending on size and spec. Do I need planning permission?+Usually not — garden buildings under 2.5m eaves height (if within 2m of a boundary) and under 4m ridge (dual-pitched) or 3m (any other roof) typically fall under Permitted Development. We confirm your specific site at survey. Can I have a bathroom or kitchenette?+Yes — plumbing runs from the main house or a dedicated hot-water heater, drainage to the main house waste run. Under a certain floor area and use, a WC is fine under PD; a full bedroom-and-bathroom outbuilding may cross into requiring planning. Is it warm in winter?+Yes, properly built. 100–150mm wall insulation, 150mm roof insulation, insulated floor and quality double-glazing plus a small electric heater or air-conditioning unit keeps it comfortable through Surrey winters. Can you install a kit I've already bought?+Yes — we install and finish supplied kits at a fixed price, including foundations, electrical connection and internal finish. What guarantee do you give?+No fixed paperwork — the same promise we give on every job: if the build has a defect, we return and put it right. It's why our work is 5.0-rated across nine verified reviews. Where do you work?+Garden rooms across Staines-upon-Thames, Egham, Ashford, Chertsey, Sunbury-on-Thames, Weybridge, Windsor, Feltham and Kingston upon Thames. Related work ## You might also need See all services → ### Garage Conversions The cheapest square metre you'll ever gain in your house. We turn dead garage space into a properly insulated, damp-free, plastered and heated room — Building Regs signed off, all in 4–6 weeks. Read more ### Extensions Foundations to final skim, drawings to building control sign-off. Our team builds side returns, rear extensions, wrap-arounds and full double-storey additions across Surrey — one contractor, one programme, one fixed price. Read more ### House Renovations One owner-led team, one point of contact, one fixed programme. From strip-out to snag list — plastering, joinery, electrics, plumbing, tiling and decoration coordinated so you're never chasing anyone. Read more Free quote ## Ready For A Fixed Price On Your Garden Rooms? Free on-site survey. Fixed written quote in 2–3 working days. No pressure, no hidden costs, no unknown extras. The DAB team replies personally. 07834 974462 - Free on-site survey - Fixed written quote in 2–3 days - £10M public liability, owner-led team - One point of contact from quote to snag list "Honestly the tidiest tradesperson I've ever met. Professional, diligent, great attention to detail." — Helen A., verified Yell review. Owner-led plastering and building specialists in Staines-upon-Thames. 15 years, £10M public liability, word-of-mouth reputation. ### Services - Plastering - Venetian & Polished Plaster - Ceilings & Artex Removal - House Renovations - Extensions - Loft Conversions - Garage Conversions - Media Walls ### Areas Covered - Staines-upon-Thames - Egham - Ashford (Surrey) - Chertsey - Sunbury-on-Thames - Weybridge - Windsor - Feltham - Kingston upon Thames ### Contact - 07834 974462 - info@dabplasteringbuilding.co.uk - TW18 2TB, Staines-upon-Thames, Surrey - Leave a Google review - Follow us on Facebook © 2026 DAB Plastering and Building Services. All rights reserved. AboutOur WorkReviewsContactPrivacyCookiesTerms Call NowFree Quote We use essential cookies to run this site, and optional cookies only if you accept. Cookie Policy AcceptReject