We carry out aluminium roof lantern repairs in Morden and across the SM4 area. Aluminium lanterns are strong and slim, but they still rely on gaskets, cappings and seals that wear.

What you might be seeing
- Cappings lifted or rattling
- 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.
Roof lanterns in Morden
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 Morden as part of Greater London, about 7 miles from Westminster.
We also cover nearby Mitcham (1 mile), Wimbledon (2 miles), Carshalton (2 miles).
What should you expect to pay in Morden?
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?
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.
Aluminium roof lantern repairs in Morden: 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.
Which places near Morden do you cover?
As well as Morden, we cover nearby Mitcham, Wimbledon, Carshalton, New Malden and the rest of Greater London.
What do aluminium lantern repairs cost?
Most component repairs are £195–£695 ex VAT per lantern, confirmed in writing before work starts.
Can you repaint an aluminium lantern?
Yes — see roof lantern respraying for on-site spray finishes.
Other lantern repairs in Morden
- Roof lantern leak repairs in Morden
- Cracked lantern glass replacement in Morden
- Slipped glass panel repairs in Morden
- Condensation diagnosis and fixes in Morden
- Timber roof lantern repairs in Morden
- Roof lantern replacement in Morden
Aluminium roof lantern repairs near Morden
More about aluminium roof lantern repairs · All roof lantern repairs in Morden