Opening vents in roof lanterns are usually driven by a chain actuator on a switch, remote or rain sensor. Send photos from Putney (SW15) and we'll tell you which it is — with the price agreed in writing before any work.
Signs you need opening vent and actuator repairs
- Vent won't open or close
- Leaks from around a closed vent
- Rain sensor doesn't close the vent
What usually causes it?
Actuator failure
Chain actuators wear out or jam, especially if they've been forced.
Seal or hinge problems
A twisted hinge or worn seal stops the vent closing tight.
About Putney and the SW15 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.
Across London, many lanterns sit on rear extensions with access only through the house, so we protect floors and plan the work to keep time indoors to a minimum. Parking and any permits are factored into the quote.
From Westminster to Putney is roughly 4 miles — all part of the Greater London area we cover.
Neighbouring places we cover include Barnes (2 miles), Fulham (2 miles), Wimbledon (3 miles).
How much should it cost?
Typical range: £195–£545 ex VAT, which is £234–£654 with VAT, per vent. 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.
Opening vent and actuator repairs in Putney: questions
Do you need to visit to price opening vent and actuator repairs?
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.
Which places near Putney do you cover?
As well as Putney, we cover nearby Barnes, Fulham, Wimbledon, Chelsea and the rest of Greater London.
Can you add a vent to a lantern that doesn't have one?
Some lanterns can take a replacement vent unit in place of a fixed pane; it depends on the system. We'll check.
Can you add a rain sensor?
Often, if the actuator and control are compatible.
Other lantern repairs in Putney
- Roof lantern leak repairs in Putney
- Roof lantern respraying in Putney
- Leak investigation and inspection in Putney
- Roof lantern replacement in Putney
- Orangery lantern repairs in Putney
- Commercial roof lantern repairs in Putney
Opening vent and actuator repairs near Putney
More about opening vent and actuator repairs · All roof lantern repairs in Putney