Conservatory & Flat Roof Replacement with Glass Lantern

Conservatory Glass Lantern

flat roof with glass lantern

Before Replacement

old conservatory roof and double glazing

After Replacement

flat roof lanterns Portsmouth

With a Topline conservatory or flat roof conversion, we provide a real life-in all year round room, allowing the light to shine in too. A choice of colours are Matt Grey, Matt Black and White, these can be chosen with any combination on inner and outer frame, construction is thermally efficient aluminium with A – rated energy glass.

By fitting a modern self-clean glass lantern, upgrades an existing glass or polycarbonate conservatory roof, making your room more modern and better insulated. Often the complaint of old style conservatory roofs is that its too cold in the winter and too warm in the summer.


Our flat roofs are built to regulation standards for your peace of mind, the work would include plaster finish inside, ready to paint, LED down lights in the ceiling.

Our flat roofs are guaranteed for 10 years, covered by an insurance backed independent guarantee plus without charge, an independent insurance for the whole of the 10 yrs (For your peace of mind) In association with GGF

Our refurbishments can include existing Edwardian style or Victorian style, converted to a flat roof.

Existing Flat Roof/Conservatory renewal

The complete removal of the existing roof and then renewed in the latest long lasting roofing materials creating a flat roof built to regulation standards . Incorporating a glass lantern to let the light shine

Price Guide for new roof and glass lantern

subject to site survey


2000 3000 £5,325
3000 3000 £6,570
3000 4000 £8,460
3000 5000 £10,350
3000 6000 £11,995
4000 2000 £6,800
4000 3000 £8,460
4000 4000 £10,990
4000 5000 £12,450

Glass lanterns are made to measure to suit the relative overall size of existing roof.

*square lanterns can be manufactured.