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    Building & Conversion Specialists in South Woodford & East London

    Loft conversions, extensions, basement digs and full house renovations — coordinated end-to-end by one East London team.

    Get a Free Quote 07783 449 736

    Free site visit · Fixed written quote · Companies House #10012712

    • Years tradingSince 2016
    • Conversion projects delivered100+ across East London
    • AccreditationWhich? Trusted Trader
    • Workmanship guaranteeWritten, project-specific
    What this category covers

    About our building & conversions work

    Building and conversion work is structural by nature — you're changing how a house carries load, manages water, and meets Building Regulations. Our Building & Conversions cluster covers the four projects East London homeowners ask about most: loft conversions, single and double-storey extensions, basement digs, and ground-up renovations of older Victorian, Edwardian and inter-war stock.

    Most of our conversion clients are owner-occupiers in Redbridge, Waltham Forest and the Essex commuter belt who need more usable space without moving — typically families adding a third or fourth bedroom, a home office, or a kitchen-diner that opens onto the garden. We also work with landlords adding HMO-compliant rooms and developers refurbishing pre-war stock for resale.

    These are the projects where coordination matters most. Architects, structural engineers, party wall surveyors, planning officers and Building Control all sit on the critical path. We handle the lot under one contract — drawings, calcs, applications, build, sign-off — so you have one point of accountability instead of chasing four trades.

    Recent building & conversions project by RJS Innovative Building Ltd in East London
    Services in this category

    Every building & conversions service we deliver

    Pick the service closest to what you're planning — each links through to a dedicated page with detailed scope, our process and project timelines.

    Loft Conversions

    Dormer, hip-to-gable, L-shaped and mansard loft conversions designed for East London's Victorian and Edwardian roof profiles. We handle structural steels, party wall awards, dormer cheeks, fire-rated stairs, ensuite first-fix and full plastered handover. Most projects deliver a usable bedroom and ensuite without losing original ceiling lines downstairs.

    See full loft conversion details

    House Extensions

    Single-storey rear, side-return, wrap-around and double-storey extensions, including the structural steels, foundations and large-format glazing that make them work. Permitted Development applications, full planning where needed, and party wall coordination are all managed in-house. The result: a kitchen-diner that actually opens up your ground floor.

    Explore our house extension service

    Basement Conversions

    Cellar tanking, full underpinning and basement digs designed to add a usable storey without sacrificing garden or street footprint. We coordinate the structural engineer, waterproofing specification (Type A/B/C as appropriate), drainage, and Building Control sign-off. Specialist work — quoted properly, not under-spec'd to win the job.

    See how we approach basement conversions

    Full House Renovations

    Strip-back-to-brick refurbishments where every trade matters. Structural openings, full rewire, replumb, central heating, plastering, joinery, kitchens, bathrooms and decoration — sequenced by one project manager so you're not living through a six-month relay race. Ideal for newly-bought period homes that need everything done once, properly.

    View our full house renovation service
    Why RJS for this category

    Why East London homeowners choose us for building & conversions

    Conversion work rewards builders who plan the structure first and the finishes second. Three things separate how we run these projects:

    Structure-led planning

    Steels, foundations, party walls and Building Control are sized and approved before site work starts — not negotiated mid-build when a wall comes down and the calcs don't add up.

    One contract, one programme

    Architect, structural engineer, party wall surveyor and trades all routed through one project manager. You get a Gantt, weekly site updates, and one number to call.

    Local stock knowledge

    Almost a decade working on East London Victorian terraces, 1930s semis and post-war stock means we already know which roof types take a hip-to-gable, which floors need joist upgrades, and which planners want what.

    Written workmanship guarantee

    Issued on every conversion contract, alongside manufacturer warranties on materials and structural elements.

    How it works

    Our building & conversions process

    Conversion projects move through five clear stages — each with a deliverable you sign off before the next begins.

    1. 01

      Site visit & feasibility

      Free, no-obligation. We assess what's structurally and legally possible at your property.

    2. 02

      Drawings & approvals

      Architect's drawings, engineer's calcs, planning or Permitted Development, party wall awards.

    3. 03

      Fixed written quote

      Itemised against the approved drawings — no day-rate ambiguity.

    4. 04

      Build phase

      One project manager, sequenced trades, weekly progress updates and milestone payments.

    5. 05

      Handover & sign-off

      Building Control completion certificate, snagging, written guarantee, aftercare contact.

    Where we deliver this work

    Areas we cover for building & conversions

    We deliver conversion projects across the full East London ring from our South Woodford base. Core catchments include South Woodford and Wanstead for loft and side-return work, Walthamstow and Hackney for premium rear extensions, and Loughton and Buckhurst Hill for larger double-storey and basement projects. Stratford, Chingford, Ilford, Enfield and Romford are within standard call-out range.

    South Woodford Wanstead Leytonstone All service areas

    Looking for something different? See our Interior Fit-Out & Refurbishment. Or get in touch and we'll point you to the right service.

    FAQ

    Building & Conversions — frequently asked questions

    Get started

    Planning a loft, extension, basement or full renovation? Get a fixed written quote.

    Free site visit. Itemised quote. No pressure to proceed.

    Request Your Free Quote Call 07783 449 736
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