Perma-Vent Condensation Control Vent
Rating: 81 / 100

Easy to install and maintenance-free, the Perma-Vent Condensation Control Vent is a quick and easy way to reduce, if not stop, condensation in localised areas.

Availability: In stock

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RRP £30.00 Excl. VAT
£17.50 Excl. VAT £21.00 Incl. VAT
Description

Passive Ventilation Unit

The environmentally friendly Perma-Vent contains no moving parts and requires no maintenance. It works on the scientific principle that when the room temperature and humidity are greater internally than externally, moist air will be ventilated outside the building due to vapour air differences.

The Perma-Vent contains a vapour permeable membrane, which allows vapour out of the building without allowing a draught back inside.

The unit is easily and economically installed using a 4.25” (107mm) core cutter. It can be positioned wherever condensation and mould are most prevalent. The thickness of the wall does not present a problem as the standard unit is supplied with a 13.5" (350mm) long ventral core which will accommodate most properties.

The unit is designed to be very unobtrusive, with a 6" (152mm) internal white plastic grill. Externally all that can be seen is a 6" white plastic external grille.

It is possible in severe instances that a more advanced condensation control unit will be required to remedy issues with condensation. However, the installation of a Perma-Vent Standard is a simple, inexpensive, starting point to tackle the local problems of condensation and mould.

The external diameter of the tube is 104mm so the core should be cut larger eg. 4.25” (107mm).

Features:

  • New internal and external grille design to improve air flow
  • Fly screen included in both internal and external grill
  • Anti draught vapour permeable membrane
  • Easy installation with a core cutter
  • Over 15 years proven performance
  • Supplied into the professional damp proofing market
  • Maintenance free (no moving parts)
  • Unobtrusive design, white internal and external low profile grilles
Specification
Specification
Model: PVS
SKU PVS
Manufacturer: Permagard
Packaging: Each
Size: 350mm Length, 104mm External diameter of tube, 152mm square grilles
Country of Manufacture: United Kingdom
Reviews  

I've fitted 4 of these vents with a noticeable difference straight away, I'm about to order another 4 to fit in several other properties with a condensation problem. Highly effective when used with a fungicidal wash and mould kill paint.

I've fitted 4 of these vents with a noticeable difference straight away, I'm about to order another 4 to fit in several other properties with a condensation problem. Highly effective when used with a fungicidal wash and mould kill paint.
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Review by Damp proof company on 04 Apr 2017

delivery too expensive

delivery very expensive for weight of item. doesn't work on heavy condensation.
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Review by Vijay on 26 Mar 2016

Condensation vent

Good product fir helping to prevent condensation
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Review by Jamie on 04 Mar 2016

Buy it

Ignore the negative review.
I installed two of these, one in a bedroom and one in the lounge of my flat. They worked pretty much immediately. Simple product, extremely well priced and it does exactly what it says it will do.....problem solved!
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Review by Westwood on 15 Jan 2016

Extremely pleased

Cheap,effective & works really well.
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Review by Sabir Kahn on 10 Nov 2015

Basic product that gets results like the simple things in life

Installed numerous units over the last two years for customers and would recommend this product, its always worked
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Review by Maintenance company on 18 Mar 2015

does what it says

Does what it says and has stopped condensation in my lounge
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Review by Happy on 18 Mar 2015

happy with results

I have had 3 vents installed by a local builder and i am very happy wirh the results it seems to have worked very quickly
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Review by Sean Harvey on 04 Nov 2014

Works

Very simple product that has cured our condensation issue
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Review by Mr Stuart on 30 Jan 2014

Cheap product overly priced

This is a very expensive item, which basically consists of a piece of plastic pipe and 2 grills which can both be purchased at a fraction of the cost at any local hardware store.
But what about the special membrane you ask. The "membrane" appears to be a rolled up piece of foam, not dissimilar to what you get as packing material in a parcel.
So the product weighs next to nothing but what do you get charged for the postage ? Which I will admit was speedy.
A whopping TWELVE POUND yes that's right a huge £12.

Don't care if it does cure the condensation I feel ripped off
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Review by Hacked off on 30 Dec 2013

Problem Solved

I was recommended to have a Perma-Vent installed in my rear bedroom by Permagard as a first step to stopping my condensation issues. The product was delivered very quickly and my builder had the unit installed the same day. After treating the walls with the mould wash my room appears to be condensation free and no more mould. Thanks to the technical department for you help.
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Review by Jane Howath on 15 Oct 2013

Basic but works

Very basic product but works remarkable well, I have situated the vent as recommended near the area of condensation and have had good results in reduction of condensation and no re-growth of black mould ( I cleaned the area with Multicide) Thank you to the lovely lady on the phone for all of her help.
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Review by Thomas Duckery on 29 Jan 2013

Worked

After speaking with the technical department purchased the Permavent standard, have installed it and the condensation has nearly disappeared but to be fair Permagard did suggest that I may need two vents so buying another one now.
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Review by mR dIY on 29 Jan 2013

Perma-Vent Standard

Simple product but excellent results. Mould has noticeably descreased and the flat is much fresher. Reasonable price and good service - product was delivered day after purchase.
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Review by Toni Macpherson on 17 May 2012

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FAQs

What size core drill do I need to install a Perma-Vent passive vent?

You will require a 107mm core drill, and you should drill at a slight downwards angle towards the external face to stop any water ingress.

Can the Perma-Vent be used in a kitchen?

Yes, the Perma-Vent can be used in a kitchen for background ventilation. However, where there is prevalent mould or condensation, you should always consider the reason for the moisture (cooking). You should also consider the amount of moisture released per minute which in kitchens is high. In this scenario, it would be beneficial to consider an extractor fan or Heat Recovery Unit as they are designed to handle large volumes of air and moisture in a very short period of time. They will remove damp air before it even gets a chance to condense on the cold surface and stop this air from moving to other parts of the property and causing issues elsewhere.

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