uPVC-aluminium windows: premium look, low maintenance
The popular route to Internorm quality. A uPVC core and a powder-coated aluminium exterior give you high performance, a lasting finish and a keen price against timber-aluminium.
Triple glazing, burglar resistance, noise reduction
Internorm's triple-glazed uPVC-aluminium windows are rated for Uw values as low as 0.62 W/m²K and sound reduction up to 47 dB. The newer KF 510 adds a locking system that makes the window very difficult to force.
You choose the size, colour, hardware, handles and glass. Beyond turn, turn-tilt and tilt windows, the range includes fixed glazing, balcony and patio doors and large-scale glazing.
Built-in ventilation and blinds
The KF 410 and KV 440 can take the i-tec ventilation unit directly in the frame, so you control the airflow room by room. The KV 440 also places a blind between the panes, covered on our windows with integrated blinds page.
Why uPVC-aluminium
Maintenance-free exterior
Powder-coated aluminium resists weather and keeps its finish.
Strong value
Internorm performance at a more accessible price than timber-aluminium.
Up to 47 dB
Excellent noise reduction for busy roads and exposed sites.
Models we supply
Internorm KF 510
A maintenance-free uPVC-aluminium window with a square-edged Home Pure look.
View detailsInternorm KF 410
The popular all-rounder: uPVC-aluminium or full uPVC in four design styles.
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Internorm KF 310
Strong thermal performance in Home Soft, Ambiente and Home Pure styles.
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Internorm KF 520 Studio
Flush, minimalist and engineered for striking architecture.
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Internorm KV 440 with integrated blinds
Sun and privacy protection built between the panes.
View detailsIn their words
Real feedback from EWC customers, published on our reviews page.
“The fitting team were one of the most professional we have had onsite in the many years we have owned our house. Overall EWC offer a premium product in Internorm and their service matches the product.”Ian and Ann, Carlow2024 refurbishment
“The installation team did an amazing job and took time to ensure they were 100% happy and did not rush at any stage. The front door in particular has drawn comment from subsequent visitors.”Michael Russell, Dublin2024 new build
“The team take the time to listen to and understand the customer's needs with no hard sell. Our windows and doors fitted without any hassle and are super efficient and virtually soundproof.”Martin and Sile, Carlow2024 new build, DAKO triple-glazed uPVC
uPVC-aluminium windows: your questions answered
What colours are available for uPVC-aluminium windows?
A wide range of colours is available for the aluminium exterior. Dark greys, stainless-steel and metallic tones are current favourites, with beiges and browns also in demand.
Are Internorm uPVC windows burglar resistant?
Yes. Internorm builds in multi-point locking, with toughened or laminated glass options, and the newer KF 510 adds an additional locking system.
Can I mix uPVC-aluminium with timber-aluminium?
Yes. They share the same four design styles, so you can use timber-aluminium in living areas and uPVC-aluminium elsewhere.
Keep exploring
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