Hinged Secondary Glazing made to measure for Trevethin, Torfaen. With 60mm sightlines and no transoms or mullions, our hinged units give an unobstructed view. Single-handle operation, multi-point locking, side or top hung.
Best for: casement windows, easy full access for cleaning and ventilation.
In Trevethin, plenty of homes locally keep their original windows, where an internal second pane is the only practical upgrade. Secondary glazing adds a discreet, fully reversible second pane inside the existing frame — cutting heat loss by up to 60% and noise by up to 80%, with no building-regulations approval needed.
Prefer to see the whole range for your area? Visit secondary glazing in Trevethin.
Yes — we make hinged unit to measure for Trevethin and across Torfaen, supply-only or fitted.
It's our recommended unit for casement windows, easy full access for cleaning and ventilation.
Price depends on size, glass and finish. Our online configurator gives an instant price on standard sizes, or a fast bespoke quote on larger and special units.
Configure your exact windows online in about 60 seconds — instant price on standard sizes, fast bespoke quote on the rest. Supply-only or fully fitted.
Start my instant quote →Or call 0800 088 6341 · email sales@secondarywindowsglazing.com