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Greater London · SE10

Opening vent and actuator repairs in Greenwich

Dealing with a vent that won't open or close in Greenwich (SE10)? We diagnose and repair electric opening vents — actuators, controls, rain sensors, hinges and seals, with a fixed price agreed in writing first.

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We carry out opening vent and actuator repairs in Greenwich and across the SE10 area. Opening vents in roof lanterns are usually driven by a chain actuator on a switch, remote or rain sensor.

Open electric vent in a roof lantern with chain actuator visible from inside

What you might be seeing

  • Vent stops part-way or makes grinding noises
  • Leaks from around a closed vent
  • Rain sensor doesn't close the vent

Why it happens

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.

Covering Greenwich and nearby

Sun and UV do more damage than rain on many lanterns here: brittle ridge caps, chalky finishes and hardened gaskets. They're cheap to replace before they let water in.

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 Greenwich is roughly 6 miles — all part of the Greater London area we cover.

Neighbouring places we cover include Blackheath (1 mile), Canary Wharf (2 miles), Catford (2 miles).

What should you expect to pay in Greenwich?

Guide price, per vent£195–£545 ex VAT£234–£654 inc VAT

Guide price for opening vent and actuator repairs: £195–£545 ex VAT (£234–£654 inc 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?

Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in England. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010; we confirm in writing which route applies before any replacement. 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?

  1. Send photosWhatsApp or upload a few photos and tell us when it leaks.
  2. Guide priceWe reply with a guide price and whether a visit is needed.
  3. Fixed price in writingYou approve the price and the date before anything starts.
  4. Repair and testWe fix what's failed, water-test where it matters, and send photos.

Opening vent and actuator repairs in Greenwich: 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.

Can you repair a lantern someone else installed in Greenwich?

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.

How much does a vent repair cost?

Usually £195–£545 ex VAT per vent, confirmed in writing before work starts.

Can you add a rain sensor?

Often, if the actuator and control are compatible.

Other lantern repairs in Greenwich

Opening vent and actuator repairs near Greenwich

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