Underground Drainage Systems
At Meridian Building Products, we supply a comprehensive range of underground drainage systems designed to deliver reliable performance for domestic, commercial, and industrial projects. Our range includes the trusted Kalsi underground drainage system, known for its durability, ease of installation, and long service life.
We stock a full 110mm underground drainage system, suitable for foul and surface water applications, ensuring compatibility with standard UK building regulations. From pipes and fittings to inspection chambers and access solutions, everything you need for a complete underground drainage installation is available in one place.
Our underground drainage products are manufactured from high-quality materials to withstand ground movement, heavy loads, and long-term exposure to moisture. The Kalsi 110mm system offers secure push-fit connections with precision-engineered seals, helping to reduce installation time while maintaining a watertight joint. This makes it an ideal choice for both new builds and refurbishment projects.
We carry an extensive selection of underground drainage fittings, including bends, junctions, couplers, rodding access points, and drainage chambers, allowing installers to configure efficient systems for any site layout. Whether you’re managing a small residential drainage run or a larger commercial network, our range provides the flexibility and reliability required on site.
With huge stocks held, Meridian Building Products ensures fast availability and dependable supply, helping you keep projects moving without delay. Our underground drainage solutions are trusted by builders, contractors, and merchants across the UK for their quality, consistency, and value.
Browse our full range of 110mm underground drainage systems and chambers today, or contact our team for expert advice on selecting the right components for your project.

