In Barnet, as everywhere, most roof lantern leaks start as small, preventable problems: blocked eaves, a lifted capping, a tired seal. Send photos and we'll tell you what we think has failed.
Is it time for cleaning and maintenance?
- Dirty glass or green algae on the frame
- Leaves or moss at the eaves
- You've never had it checked
Why it happens
Debris
Leaves and moss block drainage.
Unnoticed wear
Nobody looks at the roof until it leaks.
Roof lanterns in Barnet
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.
From Westminster to Barnet is roughly 11 miles — all part of the Greater London area we cover.
If you're just outside Barnet, we also cover Potters Bar (3 miles), Borehamwood (3 miles), Finchley (3 miles).
How much should it cost?
Most cleaning and maintenance jobs come in between £95 and £245 ex VAT (£114–£294 including VAT), per visit. 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.
Cleaning and maintenance in Barnet: questions
Do you cover Barnet?
Yes. We cover Barnet, including the EN5 postcode area, as part of Greater London. 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.
How do I get a price for cleaning and maintenance in Barnet?
Send a few photos of the lantern and the problem, with your Barnet postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
What does a maintenance visit cost?
Usually £95–£245 ex VAT per visit depending on size and access, confirmed in writing before the visit.
Do you clean the inside of the glass?
We can, where safe access from inside is possible; let us know when booking.
Other lantern repairs in Barnet
- Roof lantern resealing in Barnet
- Ridge and hip repairs in Barnet
- Flat roof junction and flashing repairs in Barnet
- Misted glass unit replacement in Barnet
- Cracked lantern glass replacement in Barnet
- Solar control and self-cleaning glass upgrades in Barnet
Cleaning and maintenance near Barnet
More about cleaning and maintenance · All roof lantern repairs in Barnet