Single storey rear extensions, double storey additions, side return extensions and wrap-around extensions across Maidenhead and the surrounding area. We manage the full process — structural design, planning applications where required, building regulations, trade coordination and complete internal fit-out. Most single storey extensions on Maidenhead semis fall within permitted development. For conservation area properties in Cookham, Bray, Taplow and the Thames parishes, we manage the Royal Borough planning process as a standard part of the project. Extensions on Maidenhead’s clay subsoil need careful foundation design — we assess ground conditions before the design is finalised.
Dormer, rooflight and hip-to-gable loft conversions across Maidenhead and the Royal Borough. Adding a bedroom and en-suite without extending the footprint or reducing the garden — the most cost-effective room addition available on most Maidenhead properties. We work with a structural engineer on every conversion, manage building regulations at every inspection stage, and design the en-suite plumbing correctly from the outset. The inter-war and post-war semis of Furze Platt and Cox Green typically convert well. Trussed rafter roofs on later post-war properties need the structure replaced — we confirm what is involved at the survey stage.
Open-plan structural conversions, full kitchen refits and kitchen extensions managed as a single complete project. First fix plumbing and electrics in the correct positions before any units are fitted. Structural work signed off by building control before fitting begins. For Maidenhead properties with a divided ground floor — common on the inter-war and post-war semis of Furze Platt, Cox Green and Boyn Hill — the wall between the kitchen and dining room is often load-bearing and requires engineering calculations, correctly specified steelwork and building regulations sign-off. We manage this as part of the kitchen project scope.
Full strip-out and refits, wet room installations, en-suite additions and like-for-like suite replacements across Maidenhead. We manage the plumbing, waterproofing and tiling as a coordinated scope — waste gradients correct, tanking membrane properly applied, substrate properly prepared before any tile goes on. For the higher-specification bathrooms common in Cookham, Bray and the Thames village properties — concealed thermostatic showers, freestanding baths, large-format porcelain — we advise on water pressure requirements and pipe sizing at the design stage, not after the tiles are on.
Structural repairs, chimney breast removals, internal wall alterations, doorway relocations, external maintenance, retaining walls and all the building work that does not fit neatly into a single category. We carry out general building work of all types across Maidenhead and the surrounding area. For the Victorian and Edwardian properties of the town centre and the established residential streets near the station, we use appropriate materials — lime mortar where required, matching brick and tile where repairs need to sit with original fabric — rather than defaulting to modern substitutes regardless of context.
Fully insulated, permanently built garden rooms across Maidenhead and the Royal Borough. Home offices, garden gyms, studios and leisure rooms built from the ground up — foundations, structure, insulation, cladding, glazing and electrical fit-out — not a flat-pack assembly. Most garden rooms fall within permitted development provided size and siting criteria are met. In the conservation areas of Cookham, Bray and the surrounding Thames parishes, additional restrictions apply and we advise on the planning position before any design work begins. We specify insulation correctly for year-round use — Maidenhead’s Thames valley winters require more than budget kit-build levels.
Whole-house refurbishments, open-plan conversions, purchased property renovations and period property refurbs. One team managing structural work, services and finishing in the correct sequence — plastering after first fix, tiling after second fix, nothing done in the wrong order. We carry a contingency on every older Maidenhead property because strip-out occasionally reveals conditions — failed lath-and-plaster, weakened joists, non-standard previous modifications — that need addressing before the renovation can proceed. We deal with these honestly and directly rather than presenting them as unexpected additions once you have committed.
Load-bearing wall removals, steel beam installations, underpinning, lintel replacements and structural alterations of all types. We manage the full structural process — commissioning structural engineers, specifying steelwork correctly, managing building control inspections and making good after completion. For Maidenhead homeowners planning open-plan ground floor conversions, the structural and the follow-on kitchen or living space work are managed as a single project rather than as two separate scopes. Building regulations approval is required for all structural alterations — we handle this as a standard part of the project.
A single storey rear extension on a standard Maidenhead semi typically costs £40,000–£75,000 depending on size, specification and whether structural alterations to the existing layout are included. Double storey additions run from £80,000 upwards. Wrap-arounds typically start at £75,000. These are finished installed prices including structural work, glazing, internal plastering and basic decoration — kitchen or bathroom fit-out within the new space is priced separately. Maidenhead sits at the upper end of the Berkshire market for construction labour given its position in the Thames commuter belt.
Most single storey rear extensions on semi-detached and detached properties fall within permitted development — no planning application required. The standard PD depth is 3 metres from the rear wall, extendable to 6 metres under the larger home extension scheme via prior approval with the Royal Borough of Windsor and Maidenhead. For properties in conservation areas — Cookham, Bray, parts of the riverside — permitted development rights may be more restricted and a planning application is more likely to be required. We confirm the position for your specific property at the first visit.
The on-site build for a standard dormer loft conversion on a Maidenhead semi typically runs nine to thirteen weeks. A rooflight conversion is shorter — six to nine weeks. Allow a further two to four months for the pre-build phase: structural engineering, building regulations and party wall notice where required. Total end-to-end from decision to a finished room: five to eight months for a standard dormer. More for a conversion that requires planning permission — add eight to ten weeks for the Royal Borough determination period.
Our quotes are itemised and fixed based on what the project actually involves. They include all labour, materials, structural engineering fees where required, building regulations application fees, skip hire and site clearance, and all making good. They do not include items you are supplying separately — kitchen units, sanitaryware, light fittings — or decorating beyond basic making-good where not specified. We are happy to talk through any line in a quote before you commit.
Building regulations are required for any structural alterations — wall removals, beam installations, underpinning. They are also required for loft conversions, extensions, garage conversions, new bathrooms and electrical work. Like-for-like replacements — a new boiler in the same position, replacement windows in existing openings — do not always require building regulations but may still need notification. We identify what each project requires at the quoting stage and manage applications and inspections as a standard part of the project.
In most cases yes — we manage the programme around the household’s daily needs where the property is occupied. The main constraints are during structural work and when a kitchen or bathroom is out of commission. For whole-house refurbishments, the project is faster and typically cheaper when the property is vacant — trades can work across the whole building simultaneously. We discuss occupation arrangements at the planning stage and programme accordingly.
On older Maidenhead properties — Victorian and Edwardian terraces, inter-war semis — strip-out and groundwork occasionally reveals conditions that were not visible at the quoting stage: failed lath-and-plaster, weakened floor joists, non-standard modifications, clay subsoil requiring deeper foundations. When this happens we stop, show you what we have found, explain what needs to be done and give you a clear cost before proceeding. We do not resolve it silently and add it to the final invoice.
We cover Maidenhead and the surrounding Royal Borough of Windsor and Maidenhead — including Cookham, Bray, Taplow, Furze Platt, Cox Green, Boyn Hill, Windsor, Marlow and the surrounding villages. For projects close to but outside this area, get in touch and we will let you know whether we can help.
Not sure which service covers your project? Get in touch and we will point you in the right direction.