Protect buildings from moisture and damp issues with our range of Damp Proof Course & Membranes, essential for long-lasting construction and renovation work. Damp proofing products help prevent water rising through walls and floors, reducing the risk of damp patches, mould, damage to finishes and long-term structural problems. Whether you’re working on a new build, extension or repair, using the right membrane and DPC materials is key to keeping structures dry and performing properly over time.
Damp proof course is commonly installed within brickwork to block moisture movement, while membranes are used to protect floors, walls and foundations from water penetration. These products are widely used across ground floors, wall builds, cavity walls and general structural protection, supporting better building performance and compliance with standard construction practices. Choosing quality damp proofing materials helps deliver a cleaner finish and reduces costly remedial work later on.
For best results, install damp proofing at the correct level, ensure overlaps and joints are sealed properly, and use compatible products throughout the build. Whether you’re preventing damp in a new project or improving protection on an existing structure, having the right materials makes all the difference.
Shop online today for damp proof course and membranes with delivery and collection available.
The Standard DPC 100 mm Damp Proof Course (30 m) is a high-quality polyethylene damp proof membrane designed to prevent moisture rising through masonry walls. Commonly installed within brickwork and blockwork, this DPC provides an effective barrier against damp, helping to protect buildings from moisture damage.…
The Standard DPC 150 mm Damp Proof Course (30 m) is a high-quality polyethylene damp proof membrane designed to prevent moisture rising through masonry walls. Installed within brickwork and blockwork, it forms an effective barrier against damp, helping to protect buildings from long-term moisture damage.…
The Standard DPC 225 mm Damp Proof Course (30 m) is a durable polyethylene damp proof membrane designed to prevent moisture rising through masonry walls. Installed within brickwork and blockwork, it forms an effective barrier against damp, helping to protect structures from long-term moisture damage.…
The Standard DPC 300 mm Damp Proof Course (30 m) is a robust polyethylene damp proof membrane designed to prevent moisture rising through masonry walls. Installed within brickwork and blockwork, it provides an effective barrier against damp, helping to protect buildings from long-term moisture damage.…
The Standard DPC 450 mm Damp Proof Course (30 m) is a heavy-duty polyethylene damp proof membrane designed to prevent moisture rising through masonry walls. Installed within brickwork and blockwork, it provides an effective barrier against damp, helping to protect buildings from long-term moisture damage.…
The Standard DPC 600 mm Damp Proof Course (30 m) is a heavy-duty polyethylene damp proof membrane designed to prevent moisture rising through masonry walls. Installed within brickwork and blockwork, it provides an effective barrier against damp, helping to protect buildings from long-term moisture damage.…
The Standard DPC 900 mm Damp Proof Course (30 m) is a heavy-duty polyethylene damp proof membrane designed to prevent moisture rising through masonry walls. Installed within brickwork and blockwork, it provides an effective barrier against damp, helping to protect buildings from long-term moisture damage.…
The Standard DPM 1200G Damp Proof Membrane Black 300mu (4 x 25m) is a heavy-duty polyethylene membrane designed to provide effective protection against ground moisture in floors and foundations.…
The Ultratape 100mm x 33m Black S/S PVC Jointing Tape – Professional is a high-quality single-sided jointing tape designed for sealing and protecting joints in damp proof course (DPC), membranes and general construction applications.…
The Ultratape 50mm x 10m Black DPC Jointing Tape – Double-Sided Butyl is a high-performance sealing tape designed for securely jointing damp proof courses and membranes in masonry construction.…
The Ultratape 50mm x 33m Black S/S PVC Jointing Tape – Professional is a high-quality single-sided jointing tape designed for sealing and protecting joints in damp proof course (DPC) membranes and general construction applications.…
Builders merchant depots across Leicestershire and Rutland
Three William Hercock depots in Melton Mowbray, Leicester and Oakham supply trade professionals and DIY customers with building materials, timber and landscaping supplies.
Collect from your nearest yard or have it delivered straight to site with HIAB and Moffett offload.
Trade and publicEvery depot is open to trade professionals and DIY customers
Collect or deliveredCollection from any branch or local delivery
HIAB and MoffettCrane and forklift offload straight to site
Rated up to 4.8★ on GoogleFrom 160+ customer reviews across our three depots
Opening hours
The same at all three depots
Monday – Friday7:30am – 5:00pm
Saturday8:00am – 12:00pm
SundayClosed
Bank holiday hours may differ. Please call your branch to check.
What every depot offers
Whichever branch is closest, you get the same service.
Bulk bags and pallet quantitiesOrder by the bag, the bulk bag or the full pallet.
Fast local delivery with HIAB and MoffettCrane and truck-mounted forklift offload, straight to site.
Trade accounts with credit facilitiesCredit terms and trade pricing. Open a trade account
Expert advice from an experienced teamHelp choosing materials and working out quantities.
Reliable stock availabilityKey product ranges kept in stock at every branch.
Open to trade and publicBuilders, contractors and DIY customers all welcome.
Need help with your project?
Our depot teams can help you choose materials and work out quantities.