Resealing is the planned, whole-lantern version of a leak repair: we cut out the old, failed sealant, clean every joint back to a sound surface and reseal the cappings, ridge and eaves with materials that suit the frame. Send photos from Gerrards Cross (SL9) and we'll tell you which it is — with the price agreed in writing before any work.
Signs you need roof lantern resealing
- Cracked, split or shrunken sealant along the bars
- Several small leaks rather than one obvious one
- Sealant applied over sealant from previous patch repairs
What usually causes it?
Sealant past its life
Exposed sealant on a roof takes UV, frost and constant expansion and contraction. It hardens, loses grip and pulls away from the glass.
Patch over patch
Fresh sealant run over old, dirty sealant rarely bonds. It looks fixed for a season and then lets go.
Roof lanterns in Gerrards Cross
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.
Gerrards Cross is around 19 miles from Aylesbury, and both are within our Buckinghamshire coverage.
Neighbouring places we cover include Chalfont St Peter (2 miles), Uxbridge (4 miles), Rickmansworth (5 miles).
How much should it cost?
Typical range: £245–£495 ex VAT, which is £294–£594 with 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.
Roof lantern resealing in Gerrards Cross: questions
Do you cover Gerrards Cross?
Yes. We cover Gerrards Cross, including the SL9 postcode area, as part of Buckinghamshire. 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.
Which places near Gerrards Cross do you cover?
As well as Gerrards Cross, we cover nearby Chalfont St Peter, Uxbridge, Rickmansworth, Slough and the rest of Buckinghamshire.
Can you match the colour of my frame?
We use sealants in common frame colours such as anthracite grey, black and white, and match as closely as the range allows.
How long does resealing take?
Most domestic lanterns take a few hours in dry weather.
Other lantern repairs in Gerrards Cross
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- Aluminium roof lantern repairs in Gerrards Cross
- Roof lantern respraying in Gerrards Cross
- Urgent leak make-safe in Gerrards Cross
- Roof lantern replacement in Gerrards Cross
- Commercial roof lantern repairs in Gerrards Cross
Roof lantern resealing near Gerrards Cross
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