Aluminium lanterns are strong and slim, but they still rely on gaskets, cappings and seals that wear. Send photos from Purley (CR8) and we'll tell you which it is — with the price agreed in writing before any work.

Signs you need aluminium roof lantern repairs
- Leaks at bars or ridge
- Misted units
- Corrosion at cut edges or fixings in coastal areas
Common causes we find
Worn gaskets
Gaskets do the weatherproofing; they harden and shrink with age.
Thermal movement
Aluminium moves with temperature; seals and fixings take the strain.
Covering Purley and nearby
Sun and UV do more damage than rain on many lanterns here: brittle ridge caps, chalky finishes and hardened gaskets. They're cheap to replace before they let water in.
Across London, many lanterns sit on rear extensions with access only through the house, so we protect floors and plan the work to keep time indoors to a minimum. Parking and any permits are factored into the quote.
We cover Purley as part of Greater London, about 11 miles from Westminster.
Close by, we also cover Coulsdon (2 miles), South Croydon (2 miles), Wallington (3 miles).
How much should it cost?
Most aluminium roof lantern repairs jobs come in between £195 and £695 ex VAT (£234–£834 including VAT), per lantern. 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.
Aluminium roof lantern repairs in Purley: questions
Do you need to visit to price aluminium roof lantern 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.
Can you repair a lantern someone else installed in Purley?
Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.
What do aluminium lantern repairs cost?
Most component repairs are £195–£695 ex VAT per lantern, confirmed in writing before work starts.
My lantern brand is unknown — can you still help?
Usually. Many systems share common parts, and where they don't we adapt the detail.
Other lantern repairs in Purley
- Glazing bar and capping repairs in Purley
- Eaves beam and gutter repairs in Purley
- Flat roof junction and flashing repairs in Purley
- Timber roof lantern repairs in Purley
- Urgent leak make-safe in Purley
- Commercial roof lantern repairs in Purley
Aluminium roof lantern repairs near Purley
More about aluminium roof lantern repairs · All roof lantern repairs in Purley