07503 379 215
    NZR Windows & Doors
    uPVC window installation – commercial building, London & South East
    Installation Service

    uPVC Windows

    Commercial uPVC window installations, replacements and maintenance for offices, schools and commercial buildings across London and the South East.

    Clients We've Worked With

    Trusted by leading brands across retail, corporate, education and public sectors

    Canary Wharf Group
    Costa Coffee
    Gail's Artisan Bakery
    NHS Approved Contractor
    Dartford Borough Council
    Sharp Corporation
    Anytime Fitness
    Panavision
    Pizza Express
    Caffè Nero
    Big Motoring World
    Mears Group
    WTW (Willis Towers Watson)
    XBP Europe
    Canary Wharf Group
    Costa Coffee
    Gail's Artisan Bakery
    NHS Approved Contractor
    Dartford Borough Council
    Sharp Corporation
    Anytime Fitness
    Panavision
    Pizza Express
    Caffè Nero
    Big Motoring World
    Mears Group
    WTW (Willis Towers Watson)
    XBP Europe
    Canary Wharf Group
    Costa Coffee
    Gail's Artisan Bakery
    NHS Approved Contractor
    Dartford Borough Council
    Sharp Corporation
    Anytime Fitness
    Panavision
    Pizza Express
    Caffè Nero
    Big Motoring World
    Mears Group
    WTW (Willis Towers Watson)
    XBP Europe

    Logos shown for reference

    Overview

    uPVC Windows — built, fitted & maintained

    uPVC windows offer excellent value, energy efficiency and low maintenance for commercial buildings. We supply and install commercial uPVC window systems for schools, offices, healthcare facilities and multi-occupancy buildings across London, Kent, Essex and Surrey.

    uPVC is particularly popular in education and healthcare sectors where cost-effectiveness and thermal performance are priorities. Modern uPVC profiles deliver slim sightlines and come in a wide range of colours and woodgrain finishes to suit any building aesthetic.

    Accreditation
    FENSA
    Warranty
    10 years
    Survey
    Free, no obligation
    Project Gallery
    6 photos
    uPVC window installation – anthracite grey commercial building
    View gallery
    uPVC casement window – anthracite grey finish
    uPVC windows – commercial building replacement
    uPVC window with trickle vents – residential installation
    uPVC windows and door – commercial building exterior
    uPVC obscured glass window – bathroom installation

    Click any image to view full gallery

    — What we deliver

    Why FMs & contractors specify us for upvc windows

    Specification, manufacture & installation — end-to-end, with the paperwork to match.

    Excellent thermal insulation as standard
    Very low maintenance – no painting required
    Cost-effective compared to aluminium
    Wide range of colours and woodgrain finishes
    Multi-point locking for enhanced security
    Double glazed units as standard
    Restrictors available for safety compliance
    Tilt & turn and casement options
    — Typical applications

    Where we install & maintain upvc windows

    Single replacements to full-building refurbishments — commercial, FM & heritage.

    Schools and educational facilitiesHealthcare buildings and care homesMulti-occupancy residential blocksCommunity centres and public buildingsRetail and commercial officesIndustrial units and warehouses
    Featured case study

    Honor Oak Community Centre

    Local AuthorityMulti-floorOccupied site

    68-window REHAU replacement programme

    Full 68-window replacement across an occupied youth and community centre in SE4 — REHAU Total 70c PVC-U, high-level glazing with Teleflex winding gear and scaffold access.

    — Our Capabilities

    Commercial glazing services

    Complete glazing solutions for businesses, FM companies, schools and public sector organisations across London and the South East.

    Need a repair or maintenance visit? Visit our repairs hub
    Entrance Doors

    Entrance Doors

    Commercial aluminium and glass entrance doors for offices, retail, gyms, schools and managed buildings across London and the South East.

    Learn more
    Commercial Shopfronts

    Commercial Shopfronts

    Complete commercial shopfront systems — aluminium-framed and frameless glass shopfronts, shopfront glazing and entrance doors for retail, hospitality and managed buildings.

    Learn more
    Curtain Walling

    Curtain Walling

    Large-scale curtain wall systems, structural glazing and facade installations for commercial developments.

    Learn more
    Commercial Windows

    Commercial Windows

    Commercial window installations, replacements and maintenance — aluminium, uPVC and timber windows for offices, schools and commercial buildings.

    Learn more
    Smoke Vents / AOV
    Life safety

    Smoke Vents / AOV

    Installation, repair and maintenance of smoke ventilation systems and AOV (Automatic Opening Vent) systems.

    Learn more

    Reactive repairs & maintenance

    Same-day call-outs, glazing replacement and PPM contracts.

    Visit repairs hub
    Live · 24/7

    Emergency & make-safe

    Boarded up, secured or glazed back in — fast.

    Call 07503 379 215
    uPVC Windows enquiry

    Request a survey, quote or repair for upvc windows

    Tell us about your upvc windows project — new installation, replacement, glazing or hardware repair. We cover commercial, FM and residential across London & the South East.

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    Your details

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    Service required

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    Tell us more

    A sentence or two is fine

    Same working-day reply · Emergencies prioritised 24/7

    — Frequently asked

    uPVC Windows FAQs

    Are uPVC windows suitable for commercial buildings?

    Yes, uPVC windows are widely used in schools, healthcare buildings and commercial premises. Modern uPVC profiles offer excellent performance and aesthetics.

    How long do uPVC windows last?

    Quality uPVC windows typically last 20-30 years with minimal maintenance. The frames are resistant to weathering, rot and corrosion.

    Can uPVC windows be painted or coloured?

    Yes, uPVC windows are available in white, grey, black and various woodgrain finishes. Foil-wrapped finishes provide a factory-applied colour that lasts.

    Do you replace sealed units in uPVC windows?

    Yes, we replace failed double glazed units in existing uPVC windows. This is often more cost-effective than full window replacement.

    Can you fit restrictors to uPVC windows?

    Yes, we fit window restrictors to comply with safety regulations in schools, care homes and residential buildings.

    Do you repair uPVC windows?

    Yes, we repair uPVC windows including hinges, handles, locks and gearboxes. Visit our repairs page for more information.