If the room under your lantern overheats in summer or glares, the glass is usually the problem, not the frame. Send photos from Cirencester (GL7) 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.
Orientation
South- and west-facing lanterns gain the most heat in the afternoon.
Roof lanterns in Cirencester
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.
We cover Cirencester as part of Gloucestershire, about 15 miles from Gloucester.
If you're just outside Cirencester, we also cover Stroud (10 miles), Cheltenham (13 miles), Swindon (14 miles).
How much should it cost?
Guide price for solar control and self-cleaning glass upgrades: £345–£895 ex VAT (£414–£1,074 inc 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 Cirencester: questions
Do you cover Cirencester?
Yes. We cover Cirencester, including the GL7 postcode area, as part of Gloucestershire. 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.
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.
How much does it cost to upgrade lantern glass?
Usually £345–£895 ex VAT per unit depending on size and specification, confirmed in writing before work starts.
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 Cirencester
- Glazing bar and capping repairs in Cirencester
- Ridge and hip repairs in Cirencester
- Flat roof junction and flashing repairs in Cirencester
- Timber roof lantern repairs in Cirencester
- Leak investigation and inspection in Cirencester
- Commercial roof lantern repairs in Cirencester
Solar control and self-cleaning glass upgrades near Cirencester
More about solar control and self-cleaning glass upgrades · All roof lantern repairs in Cirencester