
TSS·UPV
uPVC Windows & Doors
uPVC Casement Window
Wide views, tight seal.
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.
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.
- 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
▸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.
▸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.
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.
- ▸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.
- 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
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.
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.

uPVC Windows & Doors
uPVC Sliding Window
Two- and three-track uPVC sliding windows that open without eating into the room — smooth-running, sealed against dust and rain.
- Type
- Sliding (2 / 3 track)
- Profile
- Multi-chambered uPVC
- Glazing
- Single / double
- Mesh
- Optional insect track

uPVC Windows & Doors
uPVC Fixed Window
Fixed uPVC windows for uninterrupted daylight and views where ventilation isn't needed — fully sealed, slim-sightline and energy-efficient.
- Type
- Fixed light
- Profile
- Multi-chambered uPVC
- Glazing
- Single / double
- Sightline
- Slim