Flat rooflights fail in the same places as lanterns: the seal to the upstand, the roof junction and the glass unit. We carry out flat rooflight and skylight repairs across South Yorkshire, with a guide price from your photos and a fixed price in writing before any work starts.

Signs you need flat rooflight and skylight repairs
- Misted glass
- Ponding on the glass (not enough fall)
- Cracked sealant or a lifted membrane at the upstand
What usually causes it?
No fall
Flat glass needs a slight fall to shed water; ponding stresses seals.
Unit failure
Edge seals fail and the unit mists.
Roof lanterns in South Yorkshire
Colder winters mean more frosty mornings, and a roof lantern is often the coldest surface in a warm kitchen — so condensation is as common as genuine leaks. We check which you've got before quoting.
Urban grime and traffic film dull glass and frames quickly; a clean and seal check makes a tired lantern look and perform much better.
What should you expect to pay for flat rooflight and skylight repairs in South Yorkshire?
Most flat rooflight and skylight repairs jobs come in between £195 and £595 ex VAT (£234–£714 including VAT), per rooflight. Towers or scaffold, where needed, are priced into the quote. Your fixed price is confirmed in writing before any work starts.
Do you need permission in England?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in England. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010; we confirm in writing which route applies before any replacement. Listed buildings need listed building consent from the local council for alterations, and conservation areas can have extra controls; like-for-like repairs are treated differently from changes, so check with the council's conservation officer first.
How does it work?
- Send photosWhatsApp or upload a few photos and tell us when it leaks.
- Guide priceWe reply with a guide price and whether a visit is needed.
- Fixed price in writingYou approve the price and the date before anything starts.
- Repair and testWe fix what's failed, water-test where it matters, and send photos.
Flat rooflight and skylight repairs in South Yorkshire: questions
What does a flat rooflight repair cost?
Usually £195–£595 ex VAT, confirmed in writing before work starts.
Can you fix a Velux-style roof window?
Our focus is flat rooflights and lanterns; pitched roof windows are a different trade and we'll say so if that's what you have.
Which towns in South Yorkshire do you cover?
All of South Yorkshire, including Sheffield, Rotherham, Doncaster, Barnsley. Rural and remote addresses are covered by arrangement.
How do I get a price for flat rooflight and skylight repairs in South Yorkshire?
Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.
Other repairs in South Yorkshire
- Upstand and kerb repairs in South Yorkshire
- Slipped glass panel repairs in South Yorkshire
- Timber roof lantern repairs in South Yorkshire
- Roof lantern respraying in South Yorkshire
- Urgent leak make-safe in South Yorkshire
- Roof lantern replacement in South Yorkshire
Nearby areas
- Flat rooflight and skylight repairs in West Yorkshire
- Flat rooflight and skylight repairs in Nottinghamshire
- Flat rooflight and skylight repairs in Derbyshire
- Flat rooflight and skylight repairs in Greater Manchester
- Flat rooflight and skylight repairs in East Riding of Yorkshire
More about flat rooflight and skylight repairs · All roof lantern repairs in South Yorkshire