Weep vents – drainage and airflow

Weep vents provide essential ventilation for the internal wall cavity and drainage of water that may have entered the cavity through condensation, building damage or capillary action. Left unmaintained, weep holes can provide access for wasps and bees.  It’s therefore vital that weep holes are maintained with suitable and dedicated weep vents, ensuring air can flow, water can drain and unwanted visitors are kept out.

Weep vents from Manthorpe provide drainage for DPCs, cavity trays and lintels and can be used in conjunction with our range of cavity trays when required. Discreet grilles and openings help to prevent the ingress of driving rain and insects.  Diamond Weep®, the latest addition to the weep vent range provides improved drainage and self-cleaning due to the specialised diamond cross-section profile and robust mortar key thanks to upper and lower ribs along the outlet.

Manthorpe’s range of weep vents can be used on both new-build and refurbishment projects.

Our weep vents are entirely British manufactured, as are the majority of our products; proudly supporting British manufacturing and minimising risk in the supply chain and in your project schedules.


Weep vents for all projects and specifications

All our weep vent products come in a variety of colours such as brown, black, terracotta, clear and many others to ensure a close match with surroundings and maintaining overall aesthetics.

If you need more information or advice on weep vents or any other aspect of a specific project, you can get in touch with us through our contact page webform or by email or phone, and we’ll be happy to help.

You can find stockists for our weep vents and the full Manthorpe product range through our ‘Find a stockist’ facility. Just pop in your postcode for a list of your nearest stockists and accompanying maps and directions.

Alternatively, visit our Contact Us page to find details for your local Area Sales Manager.

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Weep vents – drainage and airflow: 3 Results

The G952 has been designed to provide retrospective ventilation to cavity walls where no or an insufficient amount of Weep Vents have been used. In addition the G952 can be used to ventilate rendered wall where standard weep vents are notoriously difficult to detail. The product is quick and...

*This product is a replacement for the G951 Peep Weep* The unique diamond shape profile helps to increase the drainage flow rate along the base of the channel promoting self-cleaning and removal of debris build up. Ribs along the angled outer walls also create a...

The Manthorpe G950 Weep Vent is used to drain lintels, cavity trays and to ventilate cavity walls. The product can be slotted between two bricks and mortared into position. It provides an unobtrusive ventilation or drainage point for the cavity behind. The vent has a baffled grille to prevent...


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