5-Panel Heavy-Duty Horizontal Slider made to measure for St Blaise, Cornwall. Our widest configuration — a reinforced five-panel heavy-duty slider.
Best for: commercial-width openings and shopfronts.
In St Blaise, 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 St Blaise.
Yes — we make horizontal slider hd · 5 panels to measure for St Blaise and across Cornwall, supply-only or fitted.
It's our recommended unit for commercial-width openings and shopfronts.
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