In New Malden, as everywhere, some leaks are obvious; many aren't. Send photos and we'll tell you what we think has failed.

Is it time for leak investigation and inspection?
- Previous repairs haven't stopped the leak
- The leak moves around or is intermittent
- You're not sure if it's a leak or condensation
What usually causes it?
More than one fault
Older lanterns often have two or three small failures.
Not the lantern
Sometimes the source is the flat roof, a parapet, a gutter or a wall above.
About New Malden and the KT3 area
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.
We cover New Malden as part of Greater London, about 9 miles from Westminster.
Neighbouring places we cover include Surbiton (2 miles), Morden (3 miles), Wimbledon (3 miles).
What should you expect to pay in New Malden?
Typical range: £145–£295 ex VAT, which is £174–£354 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 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.
Leak investigation and inspection in New Malden: questions
How do I get a price for leak investigation and inspection in New Malden?
Send a few photos of the lantern and the problem, with your New Malden 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 New Malden do you cover?
As well as New Malden, we cover nearby Surbiton, Morden, Wimbledon, Ewell and the rest of Greater London.
Is the visit cost deducted from the repair?
Ask when you book — we'll confirm in writing how the visit is charged if you go ahead with the repair.
Do you provide a report?
Yes, with photos and findings, which is useful for landlords, insurers and disputes with installers.
Other lantern repairs in New Malden
- Glazing bar and capping repairs in New Malden
- Slipped glass panel repairs in New Malden
- Condensation diagnosis and fixes in New Malden
- uPVC roof lantern repairs in New Malden
- Opening vent and actuator repairs in New Malden
- Roof lantern respraying in New Malden
Leak investigation and inspection near New Malden
More about leak investigation and inspection · All roof lantern repairs in New Malden