Walter Bailey (Par) Ltd
Small enough to care, big enough to deliver.
(01726) 812245
Plastics
DPM/DPC and Radon barriers
​Our product range includes both standard-grade and high-load damp proof course (DPC) rolls, available in widths from 100mm to 900mm, suitable for use in cavity wall construction and load-bearing applications.
We also supply high-performance damp-proof membranes (DPM) and radon-resistant membranes in large roll formats, engineered for integration into foundation structures to provide effective barriers against moisture ingress and ground gases such as radon, methane, and carbon dioxide. All materials comply with relevant British Standards and building regulations for below-ground waterproofing and gas protection.
Vapour barriers
​We offer two types of vapour barrier films to suit different construction needs. Our green-tinted vapour barrier is available in 2.45m x 50m rolls with a thickness of 125mu and is specifically designed to meet building regulations for use in wall constructions. For general-purpose moisture control, we stock TPS clear sheeting in 4m x 15m rolls, providing a versatile and durable solution for a variety of applications. Both options are easy to install and effectively prevent moisture penetration, helping protect your building structure from damp-related damage.
Timloc
​Explore our wide range of durable plastic products designed to support every stage of your build, from below ground to above the roofline. Whether you're working on a new build or a renovation, we have the essential components in stock to ensure quality, compliance, and performance.
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Our selection includes:
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Telescopic Vents – Adjustable and robust ventilation solutions for sub-floor airflow.
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Radon Sumps – Effective systems for managing radon gas in new and existing properties.
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Fire Socks – Intumescent barriers to maintain fire integrity around pipework and service penetrations.
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Cavity Closers – Insulated solutions to prevent thermal bridging and improve energy efficiency.
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Weep Vents – Essential for cavity wall drainage and ventilation.
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Air Bricks – High-quality plastic vents to ensure consistent airflow in cavity walls and underfloor areas.
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Eaves Protectors – Protects roofing felt from sagging and improves ventilation at the eaves.
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Loft Hatches – Easy-to-install, insulated access solutions for loft spaces.
All products are manufactured to high standards, ready for immediate dispatch, and suitable for use across domestic and commercial projects. Get the right parts to build smarter, safer, and more efficiently.