Pattrick & Thompsons has been a trusted builders’ and timber merchant in King’s Lynn since 1865, offering quality Drainage & Ducting supplies—ideal for contractors, tradespeople, and homeowners. Drainage & Ductingsupplies are available for delivery or can be collected in our King's Lynn store. If you still need some assistance, please contact us.
What You’ll Find Here
Below Ground Drainage – Choose from pipes, bottle gullies, access chambers, bends, couplings, and soakaway crates for robust underground systems.
Manhole Covers – Secure, load-rated access points for maintenance and service entries.
Channel Drainage – Durable linear surface drainage solutions—perfect for patios, driveways, and external paved areas.
Why Shop with Us?
Local stock, local support – Visit our King’s Lynn site on Page Stair Lane for same-day click‑and‑collect or quick local delivery
Expert advice – Our long-serving team of local professionals understands regional drainage standards—and can guide you to the best solutionsQuality you can trust – We stock recognised brands and offer products compliant with UK regulations, backed by over a century of service .
Convenient purchasing options – Free delivery on orders over £50 plus flexible click‑and‑collect on all in‑stock items
🛠 Ready to Complete Your Project?
Browse our Below Ground Drainage, Manhole Covers, and Channel Drainage sections now. Whether you're planning a build or repair, Pattrick & Thompsons delivers reliable stock, expert insight, and local convenience to get your project done right—on time.
Underground 450mm B5398 Chamber Riser Sealing Ring is specifically designed to ensure a secure and tight seal when connecting a chamber to a riser or riser to riser. This sealing ring plays a crucial role in maintaining an airtight and watertight connection, preventing any leakage or seepage.
Ground Guard Grass Grid 585 x 385mm represent a lightweight yet remarkably efficient ground reinforcement system, ideal for stabilizing grass or gravel surfaces. The installation process is effortless, as the fittings seamlessly click together without the need for extra fixings or tools. Additionally, these tiles can be easily customized by cutting to shape, accommodating irregular edges with convenience.
ACO HexDrain® Drainage Channel with Black Plastic Grate 1000mm A 15 - The ideal drainage channel for domestic applications, with integral plastic grating. Suitable for pedestrian and vehicle traffic up to Load Class A 15 including residential driveways, patios and pathways.
Fernco DC115 Drain Coupling 115 x 100mm (Dia x W) , sometimes referred to as couplers, are simple, easy to use drainage pipe connectors. Drain Couplings are designed to connect two pipes with the same or similar (within 10mm) outside diameter.
Aco Hexdrain/Raindrain Closing End Caps provides a discreet slot drainage system for domestic up to 60mm block paving installation and threshold drainage.
Fernco Adaptor Coupling AC4000 121-136/110-121mm, sometimes referred to as reducer couplings, are designed to connect unadopted drainage pipes with different outside diameters – connecting larger drainage pipes to smaller drainage pipes and vice versa.
ACO HexDrain Corner Unit with Black Plastic Grate and Vertical Outlet is part of the HexDrain family of products. HexDrain products are suitable for domestic applications up to Load Class A 15. The channels simply clip together, allowing for quick and easy installation, with an 80mm depth the ACO HexDrain is great for challenging domestic installations.
Aco Hexdrain Accessory Bag - units are made from recycled polypropylene. The kit comes complete with the essentials for installing HexDrain drainage systems.
PSM1A Polystorm Modular Water Storage Unit 1000x500x400 - Your soil type will determine the efficiency of the soakaway system. This crate has a compressive strengh of 61 tonnes/ m2.We recommend that your groundwork contractor undertakes a percolation test on your soil to calculate the correct number of crates for your application
