We carry out cleaning and maintenance in Helensburgh and across the G84 area. Most roof lantern leaks start as small, preventable problems: blocked eaves, a lifted capping, a tired seal.

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
Algae and dirt
Hold moisture against seals and spoil the view.
Unnoticed wear
Nobody looks at the roof until it leaks.
Roof lanterns in Helensburgh
Damp, mild winters keep moss and algae growing on flat roofs and lantern frames, which holds water against seals and blocks weep slots. Regular clearing makes a real difference in wetter areas.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
Helensburgh is around 40 miles from Oban, and both are within our Argyll and Bute coverage.
Close by, we also cover Greenock (4 miles), Dumbarton (7 miles), Dunoon (9 miles).
How much should it cost?
Typical range: £95–£245 ex VAT, which is £114–£294 with 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 Scotland?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Scotland. Replacing the whole lantern or enlarging the opening is different and falls under the Building (Scotland) Regulations 2004; we confirm in writing which route applies before any replacement. Listed buildings in Scotland need listed building consent from the planning authority for alterations, with Historic Environment Scotland guidance; check before changing a lantern on a listed property.
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 Helensburgh: questions
How do I get a price for cleaning and maintenance in Helensburgh?
Send a few photos of the lantern and the problem, with your Helensburgh postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Which places near Helensburgh do you cover?
As well as Helensburgh, we cover nearby Greenock, Dumbarton, Dunoon, Clydebank and the rest of Argyll and Bute.
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 Helensburgh
- Roof lantern leak repairs in Helensburgh
- Flat roof junction and flashing repairs in Helensburgh
- Roof lantern respraying in Helensburgh
- Leak investigation and inspection in Helensburgh
- Urgent leak make-safe in Helensburgh
- Commercial roof lantern repairs in Helensburgh
Cleaning and maintenance near Helensburgh
More about cleaning and maintenance · All roof lantern repairs in Helensburgh