Slimline lanterns that lift the light in a flat roof extension, supplied and fitted by one team.
A lantern is priced on its footprint, the glass specification and the upstand it sits on. A modest lantern over a kitchen extension is one figure. A long lantern with solar control glass, a bespoke ridge and a kerb that has to be built from scratch is another. The frame finish matters too, as does whether the extension roof is ready to take a unit or needs work first.
We survey free of charge, measure the kerb or set out where one has to go, and price the lot in writing. That includes the lantern, delivery, fitting, sealing and making the roof covering good around the upstand. There is no call out fee and no separate delivery charge.
Length and width drive the glass area and the frame sections. A lantern is priced on its size before anything else is chosen.
Solar control and self cleaning glass cost more but earn it on a south facing kitchen roof. Standard units keep the price down.
If a kerb already exists and is square and sound, fitting is straightforward. Building one, or squaring a poor one, adds work.
Standard colours are the value option. A bespoke or dual colour finish to match the extension adds to the frame cost.
A lantern goes in over a day or so once the roof is ready. Getting the kerb right is where the job is won.
We measure the kerb, check it is square and level, and look at how the roof covering is finished around it. Where there is no kerb yet, we set out exactly what is needed and what size it has to be.
One figure covering the lantern, the glass specification, delivery, fitting and sealing. Any work to the upstand is listed separately so you can see what you are paying for.
Lanterns are made to your surveyed size, so there is a lead time. We confirm it in writing and ring you the moment it arrives. Delivery is free.
Frame set on the kerb, bars fixed, glass in, capping on, then sealed and the covering dressed. We clear the roof and the room below, and take the packaging away.
Yes. A lantern sits on an upstand so the water runs away from the frame rather than at it. If your extension roof does not have one, we tell you at the survey what has to be built and what it will cost.
It can if the roof faces south and the glass is standard. Solar control glass takes most of that heat out while keeping the light, and it is far cheaper to specify now than to fix with blinds later.
Aluminium, on almost every job. The bars stay slim so you get more sky and less frame, and it holds a long span without deflecting. We will still price uPVC if the budget calls for it.
Usually a day on a prepared kerb. If we are building or squaring the upstand first, allow longer, and we will have told you that at the survey rather than on the morning.
Ten years on the whole lantern, frame, glass units and fixings, and we make the weathering good around the upstand as part of the job.
