Homeowners and builders in Carmarthen come to us for roof lanterns for a simple reason: honest supply-only prices, made-to-measure fabrication and installation available right across Carmarthenshire.
Free, no-obligation quotes · response within 1 working hour · supply-only or fully installed
The Carmarthenshire market is defined by rural farmhouses and market-town stock with steady conversion and extension demand — and our Carmarthen installs reflect that, with specifications matched to the property rather than pulled off a shelf.
Specification doesn't change with postcode: thermally broken frames, 28mm argon-filled glazing, marine-grade powder coating and a 10-year guarantee, whether you buy supply-only for your own builder or book our installation teams.
Our teams cover Carmarthen alongside Llandovery, Llanelli and Ammanford and the rest of Carmarthenshire — surveys are free, quotes carry no obligation, and we aim for a response within 1 working hour.
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
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.
Supply-only prices depend on size and glass specification — our online price list covers the standard sizes, and made-to-measure quotes usually come back the same day. Installed prices add the fitting, flashing and making good, and vary with roof access and upstand condition, so we confirm those on a free survey.
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.
We do. Carmarthen and the surrounding Carmarthenshire towns are core territory for both our installation teams and our supply-only delivery routes.
For Carmarthen: same-day made-to-measure quotes, standard sizes delivering in around 7–10 working days, and installation slots booked to suit once the survey's done.
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