Our Plastic Underground Drainage range is designed for dependable, long-lasting water management below ground. Ideal for new builds, extensions and repair work, plastic underground drainage systems provide a practical solution for carrying waste and surface water safely away from properties. With durable pipework and compatible fittings, these systems are built to perform in ground conditions while remaining straightforward to install.
Plastic underground drainage is commonly used for connecting soil and waste outlets, rainwater runs and underground pipe networks, helping prevent pooling, damp issues and water build-up around buildings. Plastic pipework offers consistent sizing, easy handling and secure jointing, making it a popular choice for both trade professionals and home improvement projects. Using the correct connectors, bends and access fittings ensures a watertight finish and helps reduce future maintenance.
For best results, plan your route carefully, maintain the correct fall for steady flow, and install on a suitable bed with proper backfill to protect the pipework. Whether you’re replacing a section or installing a full system, choosing compatible components helps deliver a tidy, reliable drainage run.
Shop online today for plastic underground drainage pipes and fittings with convenient ordering and delivery available.
The Brett Martin Silicone Lubricant Spray 400ml is a convenient spray lubricant designed to aid assembly and maintenance of plastic drainage components, seals and moving parts (application dependent). It provides quick, clean application to reduce friction and improve ease of fitting.
Brett Martin Solvent Cement 125ml is a fast-acting adhesive designed for creating strong, permanent joints in compatible solvent-weld waste and drainage systems. Ideal for installers and maintenance work, it supports reliable bonding for clean, watertight connections.
The Brett Martin Spare Rectangular Hopper and Grid is a replacement top assembly for compatible hopper and gully units, designed to restore surface water entry and improve the finished appearance. Ideal for maintenance and refurbishment of external drainage points.
The Brett Martin Spare Round Hopper and Grid is a replacement top assembly designed to refresh or repair compatible hopper and gully installations. Featuring a durable round grid, it helps restore effective surface water intake and a neat finished appearance.
The Brett Martin Spare Square Hopper and Grid is a replacement top assembly for compatible drainage hoppers and gullies, designed to reinstate surface water entry and provide a clean, finished appearance. Ideal for repairs and routine maintenance.
The Brett Martin Square Hopper (160mm with 110mm Inlet) is a surface water collection hopper designed to accept rainwater and discharge into 110mm drainage pipework. Its square top format provides a neat finish for patios, paving and external drainage points.
The Brett Martin StormCrate55 Crate (4 crates per m³) including 4 clips is a high-strength modular attenuation crate designed for stormwater management and soakaway systems. Lightweight and quick to assemble, it supports efficient water storage, infiltration and SuDS-compliant drainage designs (project dependent).
