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Civils & Drainage
Find reliable civils and drainage supplies in Leicestershire and Rutland, suitable for groundworks, infrastructure and site development projects. William Hercock supports trade contractors and builders with quality drainage materials, offering local delivery and branch collection across Leicester, Loughborough, Melton Mowbray and Oakham.
Our range includes underground drainage pipes, fittings, inspection chambers, ducting, soakaway systems and associated groundworks materials. Using the correct civils products ensures effective water management, structural stability and long-term performance across residential and commercial projects.
Civils and drainage materials are essential for foundations, utility installations, surface water control and below-ground infrastructure. Selecting durable, compliant components helps reduce future maintenance issues and ensures projects meet required standards.
For best results, confirm load ratings, pipe diameters and compatibility before installation. Proper ground preparation and correct jointing methods are key to achieving reliable drainage performance.
Underground Drainage & Groundworks Materials
Civils Supplies Delivered Across Leicestershire
Drainage Pipes, Chambers & Ducting
Order civils and drainage materials online today with fast delivery across Leicestershire & Rutland or collect from your nearest William Hercock branch.
Rainwater 68mm Round Downpipe Downpipe Connector Black
The Brett Martin Rainwater 68mm Round Downpipe Downpipe Connector Black is a durable PVCu rainwater pipe fitting designed for reliable roof drainage and efficient downpipe system installation.
£2.30 INC VAT
Rainwater 68mm Round Downpipe Downpipe Connector White
The Brett Martin Rainwater 68mm Round Downpipe Downpipe Connector White is a durable PVCu rainwater pipe fitting designed for reliable roof drainage and efficient downpipe system installation.
£2.30 INC VAT
Rainwater 68mm Round Downpipe Downpipe Rainwater Head Black
The Brett Martin Rainwater 68mm Round Downpipe Downpipe Rainwater Head Black is a durable PVCu rainwater pipe fitting designed for reliable roof drainage and efficient downpipe system installation.
£12.04 INC VAT
Rainwater 68mm Round Downpipe Downpipe Shoe Black
The Brett Martin Rainwater 68mm Round Downpipe Downpipe Shoe Black is a durable PVCu rainwater shoe designed for reliable roof drainage and efficient downpipe system installation.
£3.27 INC VAT
Rainwater 68mm Round Downpipe Downpipe Shoe White
The Brett Martin Rainwater 68mm Round Downpipe Downpipe Shoe White is a durable PVCu rainwater shoe designed for reliable roof drainage and efficient downpipe system installation.
£3.27 INC VAT
REINFORCING BAR 12MM X 3M
The 12mm × 3m Reinforcing Bar is a high-strength steel reinforcement product designed to improve the tensile performance and structural integrity of concrete. Commonly referred to as rebar, this bar is manufactured from high yield steel and is suitable for a wide range of construction and groundwork applications where reliable reinforcement is essential.…
£7.92 INC VAT
REINFORCING BAR 16MM X 3M
The 16mm × 3m Reinforcing Bar is a versatile, high-strength steel reinforcement product designed for concrete applications that require a balance between load capacity and workability.…
£10.77 INC VAT
REINFORCING BAR 20MM X 3M
The 20mm × 3m Reinforcing Bar is a heavy-duty steel reinforcement product designed for structural concrete applications where increased strength and load capacity are required.…
£19.04 INC VAT
Silicone Lubricant Spray 400ml
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.
£12.42 INC VAT
Silt Guard - 500 Series Silt Trap, 450mm Chamber With Filter Basket & Debris Screens, With 2x160mm Main Channel Outlet
Silt Trap – 2x160mm – 450mm. Collect sediment within below-ground drainage systems before it enters the main drainage run.
£680.00 INC VAT
Solvent Cement 125ml
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.
£7.88 INC VAT
Spare Rectangular Hopper And Grid*
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.
£14.38 INC VAT
Spare Round Hopper And Grid*
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.
£14.38 INC VAT
Spare Square Hopper And Grid*
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.
£14.38 INC VAT
Square Hopper (160mm with 110mm Inlet)
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.
£24.64 INC VAT
StormCrate55 Crate (4 crates per m3) (Include 4 clips)
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).
£58.06 INC VAT
SWDr 60mm x 50m COIL BLACK PERFORATED
Perforated Land Drain Pipe 60Mm X 50M Coil Black Perforated twin wall ducting coil for underground cable protection.
£70.60 INC VAT
SWDr 80mm LAND DRAIN CONNECTOR
Perforated Land Drain Pipe 80Mm Land Drain Connector coupling for joining drainage or ducting pipes.
£2.69 INC VAT
SWDr 80mm x 100m COIL BLACK PERFORATED
Perforated Land Drain Pipe 80Mm X 100M Coil Black Perforated twin wall ducting coil for underground cable protection.
£139.43 INC VAT
SWDr 80mm x 25m COIL BLACK PERFORATED
Perforated Land Drain Pipe 80Mm X 25M Coil Black Perforated twin wall ducting coil for underground cable protection.
£40.67 INC VAT
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