Existing Flat Roof/Conservatory Refurbishment

Refurbishment of an Existing Flat Roof/Conservatory with an Aluminium Lantern

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Retail Price List – with VAT & fitting included, standard colours both sides, Anthracite Grey/Black Semi-Gloss/White.

If your current roof is of a flat roof nature it should be possible to fit a lantern to your existing roof subject to site survey.

All sizes are for pricing purposes however each lantern is made to measure to suit individual size requirements within the maximum size of 6000mm x 4000mm

All prices are based on an external size.

Conservatory & Flat Roof Renewal 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 live-in all year round room, allowing the light to shine in too. The choice of colours are Matt Grey, Matt Black and White, these can be chosen with any combination on the 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 it’s 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, with LED downlights 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 conservatories, converted to a flat roof.

Our flat roof conversions with glass lanterns are available across Portsmouth, Waterlooville, Southampton, Chichester, Emsworth, Havant, Petersfield, Fareham, Winchester and local areas of Hampshire & West Sussex.

Price Guide for new roof and glass lantern

subject to site survey


2000 3000 £5,858
3000 3000 £7,227
3000 4000 £9,306
3000 5000 £11,385
3000 6000 £13,195
4000 2000 £7,480
4000 3000 £9,306
4000 4000 £12,089
4000 5000 £13,695

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

*square lanterns can be manufactured.