We carry out aluminium roof lantern repairs in Portsmouth and across the PO5 area. Aluminium lanterns are strong and slim, but they still rely on gaskets, cappings and seals that wear.

Signs you need aluminium roof lantern repairs
- Leaks at bars or ridge
- Cappings lifted or rattling
- Misted units
Why it happens
Worn gaskets
Gaskets do the weatherproofing; they harden and shrink with age.
Thermal movement
Aluminium moves with temperature; seals and fixings take the strain.
About Portsmouth and the PO5 area
Drier, sunnier parts of the UK are kinder to seals than the wet west, but strong sun ages sealant, gaskets and plastic end caps, and south- or west-facing lanterns can make rooms very warm. Solar control glass and an opening vent help.
From Southampton to Portsmouth is roughly 15 miles — all part of the Hampshire area we cover.
Neighbouring places we cover include Gosport (2 miles), Fareham (5 miles), Ryde (6 miles).
How much should it cost?
Guide price for aluminium roof lantern repairs: £195–£695 ex VAT (£234–£834 inc 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?
In England, like-for-like repairs to a roof lantern don't usually involve building control. A full replacement or a bigger opening is controlled under the Building Regulations 2010, so we set out the route in writing first. 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 Portsmouth: questions
How do I get a price for aluminium roof lantern repairs in Portsmouth?
Send a few photos of the lantern and the problem, with your Portsmouth postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Can you repair a lantern someone else installed in Portsmouth?
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.
Can you repaint an aluminium lantern?
Yes — see roof lantern respraying for on-site spray finishes.
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 Portsmouth
- Roof lantern leak repairs in Portsmouth
- Roof lantern resealing in Portsmouth
- Solar control and self-cleaning glass upgrades in Portsmouth
- Flat rooflight and skylight repairs in Portsmouth
- Roof lantern replacement in Portsmouth
- Commercial roof lantern repairs in Portsmouth
Aluminium roof lantern repairs near Portsmouth
More about aluminium roof lantern repairs · All roof lantern repairs in Portsmouth