A loft conversion adds a bedroom and bathroom to a Maidenhead property without touching the garden, without extending the footprint, and in most cases without requiring a planning application. For homeowners who have outgrown their space but do not want to move — or cannot find anything suitable at the right price in Maidenhead’s competitive market — it is the most practical and cost-effective room addition available.
We carry out dormer, rooflight and hip-to-gable conversions across Maidenhead and the wider Royal Borough of Windsor and Maidenhead. Every conversion is managed from structural assessment and design through to a finished, certified room — structural engineering, building regulations, en-suite plumbing and all internal trades coordinated in the right sequence by our team.
Maidenhead’s inter-war and post-war semis — Furze Platt, Cox Green, Boyn Hill — typically have the roof pitch and internal volume to support a proper double bedroom with en-suite. The Victorian and Edwardian terraces of the town centre are more varied in what is achievable but many convert well. The larger detached properties of Cookham, Taplow and the Thames-side villages suit hip-to-gable conversions that maximise floor area and deliver the highest-specification finish. We survey the roof before quoting so there are no surprises once work starts. Get in touch to arrange an assessment.
A box dormer extending from the rear roof slope is the most popular conversion type across Maidenhead — and for good reason. It creates a vertical rear wall with full-height windows, substantially increasing both the usable floor area and the natural light compared with a rooflight-only conversion. For the inter-war semis of Furze Platt and Cox Green, a full-width rear dormer converts a cramped and unusable loft into a proper double bedroom with an en-suite of decent size. We manage the complete dormer scope — structural frame, dormer cheeks, flat roof, windows, internal fit-out and en-suite — as a coordinated package. Most rear dormers on Maidenhead semis fall within permitted development.
A rooflight conversion retains the existing roof pitch and adds windows for light and ventilation — creating a loft room without any alteration to the external roofline. The simplest, most cost-effective conversion type and the one most clearly within permitted development in almost every circumstance. The right choice where the existing ridge height is sufficient to create a usable room without extending upward — something we confirm at the survey stage before any commitment is made. The trade-off compared with a dormer is reduced natural light and a smaller usable floor area. For properties where budget is the priority and headroom is adequate, it is a sensible and well-proven option.
Hip-to-gable conversions suit end-of-terrace and detached properties where the hipped roof end limits the usable loft floor area. Converting the hip to a vertical gable — usually combined with a full-width rear dormer — creates a substantially larger converted space than a rear dormer alone. It involves more structural work and external brickwork, and almost always requires a planning application. For the conservation areas of Cookham, Bray and the surrounding Thames parishes, the design needs to meet character requirements set by the Royal Borough. We manage the planning process as a standard part of the project. This conversion type is most common on the larger detached properties where maximum floor area and premium specification are the brief.
The en-suite is the element that most affects the long-term value and daily usefulness of a loft conversion — and the one where planning at the structural stage makes the biggest difference. Waste pipework from the loft toilet needs a clear run to the existing soil stack at the correct gradient. Supply pipes need to be in the right positions before the floor is laid. Attempting to retrofit plumbing into a finished loft room is significantly more disruptive and costly than routing it correctly during the structural phase. We plan the en-suite layout and confirm the waste routing before any structural work begins. Staircase position and headroom compliance are also established at design stage, not discovered as constraints mid-build.
A loft conversion involves more structural complexity than most home improvements of equivalent cost. The quality of the structural design and execution — the frame, the dormer weatherproofing, the floor loading — determines both the long-term performance of the room and how much the conversion adds to the property’s value. We take full responsibility for the structural, roofing, plumbing and electrical elements of every conversion we carry out.
We work with a structural engineer on every project, manage building regulations inspections at every required stage, and stand behind the finished result. Party wall notices on terraced and semi-detached properties are managed from the outset — not identified as a problem weeks before the intended start date.
Maidenhead town — Furze Platt, Cox Green, Boyn Hill, Woodlands Park, Braywick, Pinkneys Green
Thames villages — Cookham, Bray, Taplow, Bourne End, Hurley, Maidenhead Riverside
Windsor corridor — Windsor, Eton, Clewer, Old Windsor, Datchet, Wraysbury
Marlow and surrounds — Marlow, Little Marlow, Bisham, Medmenham, Hurley
If the loft is not suitable or the headroom is insufficient, a house extension may be the alternative. We build single storey rear, double storey and wrap-around extensions across Maidenhead and the Royal Borough — managing the full scope from structural design to handover. For properties where both a loft conversion and a ground floor extension are being planned, we quote and manage both scopes together, sequencing the work so the programme runs efficiently rather than as two separate building operations with separate mobilisation and disruption.
A loft conversion frequently prompts a broader look at the rest of the property — particularly the first floor bathroom arrangement, which often needs to change once a new en-suite is added at loft level. We manage renovation work of all types alongside loft conversions across Maidenhead: bathroom updates on the floors below, ground floor reconfigurations, kitchen refits and full whole-house refurbishments. Combining scopes where possible reduces overall disruption and gives a better-sequenced result than separate projects at different times.
A loft conversion creates a new bathroom — but it also often highlights how tired the existing bathrooms on the floors below have become. We manage bathroom renovations as a standalone project or as part of a wider loft and renovation programme. Strip-out, waterproofing, tiling and sanitaryware installation coordinated as a single scope. For the higher-specification bathrooms common in the Thames-side properties of Cookham, Bray and Taplow, we advise on shower system water pressure requirements at the design stage
Thinking about a loft conversion in Maidenhead? Get in touch and we will come out to assess your roof and give you a clear price.