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 Hertford (SG13) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- Several small leaks rather than one obvious one
- Sealant applied over sealant from previous patch repairs
- A lantern that is 8–15 years old and has never been maintained
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.
Wrong product used
General-purpose or acetoxy silicone can fail early on some frames and coatings. Glazing joints need a low-modulus, compatible sealant.
Covering Hertford and nearby
Leaf fall from garden trees is the most common cause of eaves overflow on suburban extensions. If your lantern sits near trees, clearing the eaves channel each autumn prevents a lot of drips.
We cover Hertford as part of Hertfordshire, about 11 miles from St Albans.
We also cover nearby Hoddesdon (4 miles), Welwyn Garden City (6 miles), Hatfield (7 miles).
What should you expect to pay in Hertford?
Guide price for roof lantern resealing: £245–£495 ex VAT (£294–£594 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?
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.
Roof lantern resealing in Hertford: questions
Do you cover Hertford?
Yes. We cover Hertford, including the SG13 postcode area, as part of Hertfordshire. 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 Hertford do you cover?
As well as Hertford, we cover nearby Hoddesdon, Welwyn Garden City, Hatfield, Cheshunt and the rest of Hertfordshire.
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 Hertford
- Misted glass unit replacement in Hertford
- Solar control and self-cleaning glass upgrades in Hertford
- Timber roof lantern repairs in Hertford
- Flat rooflight and skylight repairs in Hertford
- Orangery lantern repairs in Hertford
- Commercial roof lantern repairs in Hertford
Roof lantern resealing near Hertford
More about roof lantern resealing · All roof lantern repairs in Hertford