TSS Building Material Division
uPVC Windows & DoorsuPVC Casement Window

TSS·UPV

uPVC Windows & Doors

uPVC Casement Window

Wide views, tight seal.

CE markedEN 14351-1Multi-point lockingThermally efficient

Our uPVC casement windows pair wide, uninterrupted views with a genuinely weather-tight seal. Side-hung sashes open fully on robust friction stays, while multi-chambered profiles and reinforced corners give the frame the rigidity to carry large glass areas without distortion. The result is a window that feels solid in the hand and stays true through years of daily use.

01Overview

Our uPVC casement windows pair wide, uninterrupted views with a genuinely weather-tight seal. Side-hung sashes open fully on robust friction stays, while multi-chambered profiles and reinforced corners give the frame the rigidity to carry large glass areas without distortion. The result is a window that feels solid in the hand and stays true through years of daily use.

Multi-chambered uPVC and a continuous EPDM gasket system work together to keep heat in and weather out. Air pockets within the profile slow heat transfer, the gaskets close every joint against wind-driven rain, and double glazing lifts both thermal and acoustic performance so rooms stay warmer and noticeably quieter. Steel reinforcement is incorporated where spans demand it, and multi-point locking draws the sash evenly onto the seal at every closing point.

Manufactured to EN 14351-1 and built on profiles certified to EN 12608, these windows are supplied across Europe, North America and beyond, with CE marking and full technical documentation. Finishes range from classic white to woodgrain foils and bespoke RAL colours, giving specifiers a fenestration solution that suits both contemporary and traditional façades.

02Technical specifications
Window type
Side-hung casement (inward / outward opening)
Profile system
Multi-chambered uPVC, 3-5 chambers
Frame depth
60-70 mm (typical)
Glazing options
Single, or double / insulated glass unit (IGU)
Glazing thickness
4-28 mm (typical, profile dependent)
Reinforcement
Galvanised steel inserts to main profiles
Locking
Multi-point espagnolette with mushroom cams
Gasket
Co-extruded or EPDM, dual weather seal
Thermal transmittance (Uw)
1.0-1.4 W/m²K with double glazing (typical)
Sound reduction (Rw)
Up to 32-42 dB with acoustic IGU (typical)
Air permeability
Class 4 to EN 12207 (typical)
Watertightness
Class 9A / E750 to EN 12208 (typical)
Wind resistance
Class C5 / B5 to EN 12210 (typical)
Profile colour / finish
White, woodgrain foil or RAL on request
Hardware finish
White, silver, brushed or coloured to order
Packaging
Protective film, edge guards, crated or palletised for export
03Applications

Homes & apartments

Bright, draught-free living spaces with secure multi-point locking for new-build and refurbishment housing alike.

Hospitality

Quiet, comfortable guest rooms in hotels and resorts where acoustic glazing keeps external noise out.

Offices

Thermally efficient fenestration that supports comfortable, energy-conscious commercial workspaces.

Institutional

Low-maintenance, durable windows suited to schools, healthcare and public buildings with high occupancy.

Mixed-use developments

A consistent façade solution across residential and commercial floors, with finishes matched throughout.

04Features & benefits

Thermally efficient

Multi-chambered profiles and insulated glazing reduce heat loss, helping lower heating and cooling demand.

Weather-tight

Dual gasket seals and multi-point locking close the sash evenly against wind-driven rain and draughts.

Sound reducing

Acoustic insulated glass units soften external noise for calmer, quieter interiors.

Low maintenance

uPVC will not rot, rust or need repainting — an occasional wipe keeps frames looking their best.

Secure by design

Multi-point espagnolette hardware with mushroom cams resists forced entry at every locking point.

Wide, clear views

Slim sightlines and large openable sashes maximise daylight and outlook from every room.

05Standards & compliance
  • EN 14351-1

    Windows and external pedestrian doorsets — product standard defining performance characteristics (watertightness, air permeability, wind load, thermal and acoustic performance) and the basis for CE marking.

  • EN 12608

    Unplasticised PVC (PVC-U) profiles for the fabrication of windows and doors — classification, requirements and test methods for profile quality, dimensions and weathering.

  • EN 12207 / 12208 / 12210

    Test and classification standards for air permeability, watertightness and resistance to wind load respectively, against which the windows are rated.

  • ISO 9001

    Quality management systems — applied across manufacturing and inspection to ensure consistent, traceable production.

  • CE marking

    Declaration of conformity to EN 14351-1, confirming the product meets EU requirements for placing on the market.

06Installation & handling
  • Store upright on edge in a dry, ventilated area; keep protective film in place until installation is complete.
  • Set frames plumb, level and square, packing at fixing points to avoid distorting the profile.
  • Fix through the frame into sound substrate at recommended centres using appropriate anchors or fixing lugs.
  • Seal the perimeter with a compatible weatherproof sealant and ensure correct internal/external vapour control.
  • Check that sashes open, close and lock smoothly, and adjust hinges and keeps before handover.
  • Remove protective film promptly after fitting to prevent adhesive residue under prolonged sunlight.
07Variants & finishes
Opening style
Inward-opening, outward-opening, fixed light or combination
Profile colour
White as standard
Woodgrain finishes
Golden Oak, Mahogany, Anthracite Grey woodgrain foils
RAL colours
Bespoke single or dual-colour RAL on request
Glazing
Single, double or acoustic / low-E insulated glass units
Hardware
White, silver, brushed steel or colour-matched handles
08Quality & supply

Standard white casement configurations in popular sizes are typically held for shorter lead times, while bespoke dimensions, colours and glazing specifications are made to order with lead times confirmed at quotation. Samples, profile sections and corner cut-aways are available for evaluation and approval, and every order ships with full documentation — technical data sheets, the Declaration of Performance and CE marking, test reports against EN 14351-1, and product warranty. We supply across Europe, North America and beyond, with export crating, clear labelling and complete shipping documentation prepared for each consignment.

09Frequently asked

uPVC Casement Window
questions.

With a standard double-glazed insulated unit, typical whole-window Uw values fall in the range of 1.0-1.4 W/m²K. The exact figure depends on the profile system, glazing make-up and spacer chosen, and is confirmed at quotation.

Yes. They are manufactured to EN 14351-1 on profiles certified to EN 12608 and carry CE marking with a Declaration of Performance. Test classifications for air, water and wind resistance are provided with the documentation.

Single glazing is available, though double or acoustic insulated glass units are recommended for thermal and sound performance. Acoustic IGUs can deliver typical Rw ratings of up to 32-42 dB depending on the configuration.

Yes. White is standard, with woodgrain foils such as Golden Oak, Mahogany and Anthracite Grey, plus bespoke single or dual-colour RAL finishes available to order.

Each sash uses multi-point espagnolette hardware with mushroom cams that engage the frame at several points, drawing the sash tight to the seal and resisting forced entry. Hardware finishes can be matched to the project.

Windows are made to order to your schedule of dimensions, with steel reinforcement specified where spans require it to maintain rigidity. Provide your opening sizes and we will confirm the optimum configuration.

Yes. We supply across Europe, North America and beyond, with export-ready packaging and complete documentation including technical data sheets, test reports, the Declaration of Performance, CE marking and warranty.

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