For roof lanterns in Swansea, we offer both routes: supply-only with delivery for builders and DIYers, and full installation by our own teams in Swansea, Mumbles, Gorseinon and county-wide.
Free, no-obligation quotes · response within 1 working hour · supply-only or fully installed
The county's housing stock — terraced streets and Gower coastal homes — marine-grade frames and solar-control glass are common specs — shapes our recommendations here more than any brochure could.
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.
Standard sizes below — made to measure quoted same day. Installation available nationwide if you’d rather we fit it.
Thermally broken aluminium · self-clean & solar glass options · 7–10 working days
Thermally broken aluminium · self-clean & solar glass options · 7–10 working days
Thermally broken aluminium · self-clean & solar glass options · 7–10 working days
A 150mm minimum upstand is the standard requirement. It lifts the lantern clear of standing water on the flat roof and gives the flashing somewhere to dress. If your upstand isn't built yet, we'll supply the exact external kerb dimensions so your builder can form it ready for the lantern.
A correctly installed modern lantern shouldn't leak. Failures almost always trace back to the upstand or flashing rather than the lantern itself, which is why our installation teams dress and seal the junction as part of every fit, and why supply-only orders ship with full fitting instructions.
Yes — thermally broken frames and argon-filled units mean a modern lantern performs far better than the polycarbonate roofs people remember. With a solar-control upgrade the room stays comfortable in summer too.
Most single-lantern installations are completed in a day once the upstand is ready. Larger or multiple-lantern projects typically run one to two days including flashing and internal making good.
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