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Hampshire · PO5

Opening vent and actuator repairs in Portsmouth

If you're in Portsmouth and dealing with a vent that won't open or close, we can help. We diagnose and repair electric opening vents — actuators, controls, rain sensors, hinges and seals, and confirm the fixed price in writing before we start.

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We carry out opening vent and actuator repairs in Portsmouth and across the PO5 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 won't open or close
  • 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 Portsmouth and nearby

Drier, sunnier parts of the UK are kinder to seals than the wet west, but strong sun ages sealant, gaskets and plastic end caps, and south- or west-facing lanterns can make rooms very warm. Solar control glass and an opening vent help.

Portsmouth is around 15 miles from Southampton, and both are within our Hampshire coverage.

We also cover nearby Gosport (2 miles), Fareham (5 miles), Ryde (6 miles).

Guide prices for opening vent and actuator repairs in Portsmouth

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

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?

  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 Portsmouth: questions

How do I get a price for opening vent and actuator repairs in Portsmouth?

Send a few photos of the lantern and the problem, with your Portsmouth postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.

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.

How much does a vent repair cost?

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

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.

Other lantern repairs in Portsmouth

Opening vent and actuator repairs near Portsmouth

More about opening vent and actuator repairs · All roof lantern repairs in Portsmouth

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