If the room under your lantern overheats in summer or glares, the glass is usually the problem, not the frame. Send photos from Mitcham (CR4) 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
- Furniture or flooring fading under the lantern
What usually causes it?
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.
Covering Mitcham and nearby
Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.
London's extensions are often tight to neighbouring walls and roofs. Where a repair needs access over a neighbour's property, we'll tell you in advance so you can arrange it.
From Westminster to Mitcham is roughly 7 miles — all part of the Greater London area we cover.
Neighbouring places we cover include Morden (1 mile), Wimbledon (2 miles), Streatham (2 miles).
Guide prices for solar control and self-cleaning glass upgrades in Mitcham
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?
Most lantern repairs in England need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 apply and we confirm how the work will be signed off before we start. 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 Mitcham: questions
Can you repair a lantern someone else installed in Mitcham?
Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.
Which places near Mitcham do you cover?
As well as Mitcham, we cover nearby Morden, Wimbledon, Streatham, Carshalton and the rest of Greater London.
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 Mitcham
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- Ridge and hip repairs in Mitcham
- Misted glass unit replacement in Mitcham
- Aluminium roof lantern repairs in Mitcham
- Flat rooflight and skylight repairs in Mitcham
- Urgent leak make-safe in Mitcham
Solar control and self-cleaning glass upgrades near Mitcham
More about solar control and self-cleaning glass upgrades · All roof lantern repairs in Mitcham