If the room under your lantern overheats in summer or glares, the glass is usually the problem, not the frame. Send photos from Northampton (NN1) and we'll tell you which it is — with the price agreed in writing before any work.

Is it time for 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
- Clear, uncoated glass in an older 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.
Covering Northampton and nearby
Lanterns in central England see a bit of everything — summer sun that ages seals and end caps, autumn leaf fall that blocks eaves, and frosty mornings that bring condensation. A yearly check covers all three.
We also cover nearby Wellingborough (9 miles), Daventry (12 miles), Rushden (12 miles).
Guide prices for solar control and self-cleaning glass upgrades in Northampton
Typical range: £345–£895 ex VAT, which is £414–£1,074 with 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 Northampton: questions
Do you cover Northampton?
Yes. We cover Northampton, including the NN1 postcode area, as part of Northamptonshire. 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 Northampton do you cover?
As well as Northampton, we cover nearby Wellingborough, Daventry, Rushden, Kettering and the rest of Northamptonshire.
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 Northampton
- Glazing bar and capping repairs in Northampton
- Misted glass unit replacement in Northampton
- Condensation diagnosis and fixes in Northampton
- Aluminium roof lantern repairs in Northampton
- Roof lantern respraying in Northampton
- Urgent leak make-safe in Northampton
Solar control and self-cleaning glass upgrades near Northampton
More about solar control and self-cleaning glass upgrades · All roof lantern repairs in Northampton