In Carnoustie, as everywhere, flat rooflights fail in the same places as lanterns: the seal to the upstand, the roof junction and the glass unit. Send photos and we'll tell you what we think has failed.

Is it time for flat rooflight and skylight repairs?
- Misted glass
- Ponding on the glass (not enough fall)
- Cracked sealant or a lifted membrane at the upstand
Why it happens
No fall
Flat glass needs a slight fall to shed water; ponding stresses seals.
Unit failure
Edge seals fail and the unit mists.
Covering Carnoustie and nearby
Snow and ice sitting at the eaves can block a lantern's drainage and push water back under the glass as it melts. If your lantern leaks after a thaw rather than after rain, tell us — it points to the eaves and kerb.
Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.
We cover Carnoustie as part of Dundee and Angus, about 10 miles from Dundee.
Close by, we also cover Arbroath (6 miles), Dundee (10 miles), St Andrews (12 miles).
Guide prices for flat rooflight and skylight repairs in Carnoustie
Typical range: £195–£595 ex VAT, which is £234–£714 with 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 Scotland?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Scotland. Replacing the whole lantern or enlarging the opening is different and falls under the Building (Scotland) Regulations 2004; we confirm in writing which route applies before any replacement. Listed buildings in Scotland need listed building consent from the planning authority for alterations, with Historic Environment Scotland guidance; check before changing a lantern on a listed property.
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 Carnoustie: questions
Do you cover Carnoustie?
Yes. We cover Carnoustie, including the DD7 postcode area, as part of Dundee and Angus. Send photos by WhatsApp or the form for a free guide price, and we'll confirm the fixed price in writing before any work starts.
How do I get a price for flat rooflight and skylight repairs in Carnoustie?
Send a few photos of the lantern and the problem, with your Carnoustie postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
What does a flat rooflight repair cost?
Usually £195–£595 ex VAT, confirmed in writing before work starts.
Do you replace walk-on rooflight glass?
Walk-on glass is a specialist structural unit; we can measure and specify a replacement from the right manufacturer.
Other lantern repairs in Carnoustie
- Roof lantern leak repairs in Carnoustie
- Glazing bar and capping repairs in Carnoustie
- Flat roof junction and flashing repairs in Carnoustie
- Misted glass unit replacement in Carnoustie
- Opening vent and actuator repairs in Carnoustie
- Orangery lantern repairs in Carnoustie
Flat rooflight and skylight repairs near Carnoustie
More about flat rooflight and skylight repairs · All roof lantern repairs in Carnoustie