If the room under your lantern overheats in summer or glares, the glass is usually the problem, not the frame. Send photos from Bath (BA1) and we'll tell you which it is — with the price agreed in writing before any work.

Signs you need solar control and self-cleaning glass upgrades
- The room is noticeably hotter than the rest of the house in summer
- Glare on screens or worktops
- Furniture or flooring fading under the lantern
Why it happens
Clear or standard Low-E glass
Standard units let a lot of solar heat through; solar control coatings reflect more of it.
No ventilation
A lantern without opening vents traps warm air at ceiling level.
Roof lanterns in Bath
Wind-driven rain is the real test of a roof lantern, and the wetter west sees plenty of it. Leaks that appear only in a storm from one direction usually point to the cappings or eaves on that face — a useful clue when you send us photos.
If you're just outside Bath, we also cover Trowbridge (8 miles), Frome (10 miles), Bristol (12 miles).
How much should it cost?
Most solar control and self-cleaning glass upgrades jobs come in between £345 and £895 ex VAT (£414–£1,074 including VAT), per glass unit. 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.
Solar control and self-cleaning glass upgrades in Bath: questions
How do I get a price for solar control and self-cleaning glass upgrades in Bath?
Send a few photos of the lantern and the problem, with your Bath postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Do you need to visit to price solar control and self-cleaning glass upgrades?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
Can you add a film instead?
Films are cheaper but can affect the unit's warranty and may not suit sloped double glazing. We'd rather replace the unit properly.
Does self-cleaning glass mean no cleaning?
It reduces cleaning on the outer face but still needs rain and occasional rinsing, and the inside still needs cleaning.
Other lantern repairs in Bath
- Roof lantern resealing in Bath
- Eaves beam and gutter repairs in Bath
- Opening vent and actuator repairs in Bath
- Flat rooflight and skylight repairs in Bath
- Leak investigation and inspection in Bath
- Roof lantern replacement in Bath
Solar control and self-cleaning glass upgrades near Bath
More about solar control and self-cleaning glass upgrades · All roof lantern repairs in Bath