For opening & vented roof lanterns in Monmouthshire, we offer both routes: supply-only with delivery for builders and DIYers, and full installation by our own teams in Monmouth, Abergavenny, Chepstow and county-wide.
Free, no-obligation quotes · response within 1 working hour · supply-only or fully installed
Property across Monmouthshire runs to stone farmhouses and border-town terraces where heritage detailing is frequently requested — context that genuinely changes what we specify, from glazing coatings to frame colours and fixing details.
Every lantern is thermally broken aluminium as standard, glazed with 28mm argon-filled units, and available with self-clean and solar-control coatings. Supply-only orders include kerb specifications and fitting documentation; installed projects carry our written workmanship guarantee on top of the 10-year product cover.
Not in a quality system — the sash closes onto continuous gaskets and locks down tight. The vent panes carry the same glazing spec and guarantee as the fixed glass around them.
Over kitchens and in south-facing rooms, emphatically yes — venting at the highest point purges heat and steam faster than any window can. In cooler, well-ventilated rooms a fixed lantern plus good doors often suffices.
The rain sensor closes it automatically — it's a standard part of the package, not an optional extra, so an open vent and a surprise shower never meet.
Only on certain systems — vents are normally factory-built into the roof slope. Send photos of your lantern and we'll confirm whether a retrofit sash exists for it or whether replacement is the honest answer.
Send the form and we’ll come back with honest prices — supply-only or installed — with a response within 1 working hour.
Prefer to talk? Call 0800 088 6248 or WhatsApp · sales@lantern-roof.com