Guide prices
About 1 × 2 m
Aluminium lantern, double glazed, fitted and glazed on a ready upstand
About 1.5 × 3 m
Mid-size lantern, solar-control glass options
2 × 4 m and over
Large lanterns, lifting gear on the day
Guide ranges for supply & fit. Your price is fixed in a written quote after we have seen photos or surveyed. Scaffold, access towers or a crane are priced separately if the job needs them, and building control fees, where a job needs them, are shown as their own line.
Coverage in and around Gelligaer
Distance is rarely the deciding factor. A roof in Blackwood, 2 miles from Gelligaer, gets the same survey, the same written quote and the same fitting process as one in CF82, CF81 and NP12. What changes the price is the job itself: size of unit, roof type, access and lifting. Pontypridd, around 6 miles out, is treated the same way.
Your roof lanterns or ours
Your unit or ours, the fitting standard is the same. For supply and fit we choose a roof lantern to suit the roof and price it with the installation. For fit-only we work with what you have, after confirming it arrived undamaged, that it matches the builder's opening, and that the upstand will sit at the height the maker asks for. Report any transit damage to the seller, as the product cover is theirs and the maker's. Our written guarantee applies to the fitting itself.
What the job includes
- Internal trims fitted to the ring beam or upstand
- Glass lifted and laid into the frame by hand or with gear
- Caps, end closures and ridge trims fitted and sealed
- Lanterns and planning — We check whether your lantern can go in without a planning application.
- Upstand size and tolerance — We check the kerb against the lantern maker's figures before the kit is opened.
What happens on the day
Morning first: the team arrives, introduces itself and walks through the job with you. Dust sheets go down in the room below and along the route in. Then the opening and upstand, or the flashing on a pitched roof, are checked against the unit's measurements. A roof lantern goes in, is fixed to the maker's pattern and sealed into the roof covering. Inside, the reveal is finished as quoted. Before leaving, the team clears debris and talks you through what was done. Most jobs of this type take one to two days.
Do you need permission in Gelligaer?
Welsh rules differ from England's in one important way: rooflights lose permitted development rights in conservation areas, National Parks, AONBs and World Heritage Sites. Elsewhere on a house, a rooflight that projects no more than 150 mm and stays below the highest part of the roof is usually fine. Building regulations still apply to new openings, replacements we fit go through a building notice because we are not scheme-registered, and the energy limit for rooflights is 2.2 W/m²K. A new Welsh Approved Document L takes effect on 4 March 2027.
Details that speed up your quote
What we cannot see, we have to guess, and guesses make quotes wider. So the more you send, the tighter the price. Useful: shots from the roof or garden, shots from the room underneath, a rough width and length, the roof finish, any access problems, and the product page if you have already ordered. Add the property postcode around CF82 and we will come back with a quote or a survey date.
Common questions in Gelligaer
Can you remove and dispose of the old rooflight?
Yes. Taking out the old unit is part of any replacement job, and it leaves with the rest of the waste unless you ask to keep it. Old domes, glass and frames go through proper waste routes. If removal turns up a rotten kerb or damaged decking, we show you what we have found and agree the repair with you before going any further.
What upstand height and roof pitch does roof lantern fitting need?
It depends on the product. Manufacturers usually specify a minimum upstand height above the finished roof surface, and a minimum pitch on the glass so rain runs off. We follow the maker's figures for your unit rather than a rule of thumb. If your existing kerb or roof falls short, we explain the options, such as raising the upstand or choosing a unit with built-in pitch.
What is included in the price?
The written quote lists it line by line. Typically that covers fitting labour, fixings, sealants, membrane or flashing materials, any upstand work, internal finishing if agreed, and taking away the waste. For supply and fit, the unit itself is included too. Scaffold, lifting gear and any third-party fees, where needed, are shown separately so you can see what each part of the job costs.
Send a few photos and your CF82 postcode, and we will put together a written quote for the job.
