Flat rooflights fail in the same places as lanterns: the seal to the upstand, the roof junction and the glass unit. Send photos from Thatcham (RG18) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- Misted glass
- Ponding on the glass (not enough fall)
- Cracked sealant or a lifted membrane at the upstand
Common causes we find
Upstand detail
As with lanterns, the membrane must be dressed up and sealed.
Unit failure
Edge seals fail and the unit mists.
About Thatcham and the RG18 area
Most inland lantern leaks aren't storm damage; they're usually tired sealant, a lifted capping or blocked eaves drainage. All three are quick to find and fix once you know where to look.
Thatcham is around 13 miles from Reading, and both are within our Berkshire coverage.
If you're just outside Thatcham, we also cover Newbury (3 miles), Basingstoke (12 miles), Reading (13 miles).
What should you expect to pay in Thatcham?
Guide price for flat rooflight and skylight repairs: £195–£595 ex VAT (£234–£714 inc 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?
Most lantern repairs in England need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 apply and we confirm how the work will be signed off before we start. 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 Thatcham: questions
Do you need to visit to price flat rooflight and skylight repairs?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
Which places near Thatcham do you cover?
As well as Thatcham, we cover nearby Newbury, Basingstoke, Reading, Didcot and the rest of Berkshire.
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.
Other lantern repairs in Thatcham
- Roof lantern leak repairs in Thatcham
- Roof lantern resealing in Thatcham
- Upstand and kerb repairs in Thatcham
- Cleaning and maintenance in Thatcham
- Urgent leak make-safe in Thatcham
- Roof lantern replacement in Thatcham
Flat rooflight and skylight repairs near Thatcham
More about flat rooflight and skylight repairs · All roof lantern repairs in Thatcham