Guide prices
Per standard unit
Flat glass or polycarbonate unit on an existing kerb, as part of a multi-unit job
Per large unit
Larger or ventilating units, edge protection in place
Programme of works
Phased replacement across a building, priced from a survey
Guide ranges for supply & fit, per unit; site set-up priced separately. 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.
Covering CF47 and neighbouring districts
If you also own a property or a business unit in Aberdare, Rhondda or Ebbw Vale, that is no problem. We can survey and quote both, and where it suits, line the fitting days up together. Every address is reached by fitters travelling to it from their current jobs, and CF47, CF48 and CF44 sit comfortably within that pattern.
What the job includes
- Access, edge protection and fragile-roof covers planned before work starts
- Old units removed, with waste taken off site
- Roof survey of every unit, kerb and the fragile areas around them
- Glass or polycarbonate — We compare glass and polycarbonate units against the roof, use and budget.
- Working around occupied buildings — We plan noise, dust and access around the people using the building.
Fitting your commercial rooflight, step by step
Protection comes before tools. Floors, furniture and stairs get covered, and the ceiling below the opening is sheeted to catch dust. Up top, the fitters confirm the opening is square and the upstand or flashing suits what the maker specifies. Fixing follows, then weather-sealing into the membrane, felt or tiles. Only once the roof is tight do they turn to the internal reveal. Time on site for a commercial rooflight: about a day per unit, longer on big roofs, weather permitting.
Regulations for Merthyr Tydfil properties
Non-domestic rooflight work in Wales follows the Welsh Approved Documents: energy limits for the glazing, fire checks near boundaries and over escape routes, and building control for new openings. Planning depends on the building and its location. We set out the route on your quote.
Getting a price from photos
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 CF47 and we will come back with a quote or a survey date.
Common questions in Merthyr Tydfil
How long does fitting take?
Fitting a commercial rooflight into an existing, correctly sized opening is often a day's work. New openings take longer, because joists or rafters need trimming, an upstand or flashing has to be built or fitted, and the inside needs finishing. Large units that need lifting gear, and days lost to rain, can stretch things further. Your written quote gives a realistic estimate for your roof.
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.
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.
For a free, no-obligation quote in Merthyr Tydfil, use the form or call us with the details of your roof.

