Whether you’re working on large-scale groundworks, civil engineering projects, or smaller residential drainage installations, we deliver the right solutions—straight to your door or site.
Underground Drainage
We stock a huge range of underground drainage products, including sewer pipes and fittings such as couplers, bends, and junctions, available in single, double, or triple socket options. Sizes include 110mm, 160mm, and large diameters to suit any sewer application. Other pipe types include Osma adoptable Ultrarib, concrete, and clay pipes with flexible couplings and adaptors also available off the shelf.
Alongside underground pipes, we supply various types of plastic inspection chambers (PPIC), concrete manhole rings, gully pots, silt traps, catchpits, and more.
All products are sourced from leading manufacturers, including Brett Martin, Wavin, Flexseal, Naylor Clay, Wavin, and Stanton Bonna.
Sewage Treatment
We understand that septic tanks, sewage treatment plants, and silage tanks vary in materials, shapes, and sizes, such as standard, shallow-dig, or onion-shaped. We offer a selection from leading brands so you can choose your preferred option. Brands include Clearwater, Klargester, Marsh, Graf, and Harlequin.
Manhole Covers & Gratings
Whether you need a pedestrian A15 cover, a heavy-duty D400 cover, or other loadings, we have you covered. Materials include plastic, composite, ductile iron, cast iron, and galvanised steel. Shapes come in round, square, or rectangle, with options such as double-sealed, locked, recessed, or block paving-compatible covers.
To go with gully pots, we provide gully grates in hinged, double-tri, flat, solid top, dished, or heelsafe specifications. Our range of covers and gratings is from trusted brands such as Wrekin, EJ, Eccles, and Clark Drain.
Channel Drain
Drainage channels, including Aco channels, are used across various projects. Whether small or large-scale, we provide complete channel drainage solutions. Brands like Hauraton and Aco offer multiple designs and loadings, suitable for home gardens, driveways, car parks, motorways, warehouses, airports, and docks.
We supply the full range, including end caps, outlets, trash boxes, and sump units. Linear drainage comes in multiple channel bases — polypropylene, concrete, polymer concrete, or metal — with flat or angled options. Grating tops are available in polypropylene, composite, cast iron, ductile iron, or galvanised steel, in slotted, solid, decorative, permeable, or heelguard versions. Slot drains are also popular for their discreet design.
Land Drain
Land drainage remains one of our most popular products. We supply perforated (with holes) or solid unperforated land drains depending on your application. Coil sizes include 60mm, 80mm, 100mm, 160mm, and 200mm, with wrapped land drain options available in geotextile for enhanced durability.
Twinwall Drainage
Twinwall drainage pipe, also called ridgidrain, is suitable for surface water applications. Available in diameters from 100mm to 600mm, solid twinwall with ring seals is most common. Perforated or half-perforated options are also available. We provide the full range of joiners, bends, junctions, and sealing rings from trusted brands like Naylor and Condron.
MDPE Water Pipe
We supply MDPE and alkathene water pipes in blue and black, diameters 20mm, 25mm, 32mm, 40mm, 50mm, and 63mm. Leading manufacturer Radius provides coils in various lengths, with Plasson compression fittings to suit any installation. For larger diameters, HPPE pipes are available, with suitable fittings like electrofusion.
For contaminated ground, such as petrol forecourts, we supply barrier pipes (Protect-a-Line/Polyguard) and all necessary fittings. Additional accessories include Armaflex pipe lagging, water meter boxes, and groundbreaker products.
Ducting Systems
Our range of ducting products includes twinwall ducts for electric, water, gas, motorway signals, traffic signals, street lighting, and telecoms. We also supply general-purpose duct (GP), ENATS, grey BT duct, green telecoms, polyduct, and perforated gas ducts.
Additional items include couplers, duct access boxes/chambers, BT stakkabox, retention poles, drawcord, tracer wire, marker tape, and detectable mesh. Products are sourced from leading manufacturers such as Naylor, Emtelle, Cubis, and NAL.
Surface Water Management
Our online range of surface water management products includes soakaways, attenuation crates, large diameter twinwall pipes, gabion baskets, flow controls, and rainwater harvesting tanks. We also supply separators including bypass, full retention, forecourt, grease, washdown, and silt traps.
Brands include Polypipe, SDS, Graf, Asset Weholite, Klargester, Marsh, and Naylor.
Geotextiles & Landscaping
We offer hundreds of geotextile options, from standard woven/non-woven types to specialist products like Tensar. Additional items include protection fleece, damp-proof membranes, grass grids, geogrids, and root barriers.
Storage Tanks
We supply storage tanks for potable water, non-potable water, rainwater, oil, or fuel. Options include single-skin or bunded tanks, fuel depots, AdBlue tanks, and water butts from brands such as Atlas, Graf, and Enduramaxx.
Accessories, Tools & More
We stock ancillary products for every job, including lubricants, manhole lifting keys, test plugs, road paint, ropes, drain dye, bandseals, cement, aggregates, and more.
Why Choose United Civils Supplies?
Extensive product range – From underground drainage pipes and fittings to civils and groundworks essentials, we stock everything you need to keep projects moving smoothly.
Trusted brands – We only supply proven, high-performance products from the industry’s most respected manufacturers.
Competitive pricing – Get access to great value without compromising on quality.
Flexible ordering – Shop online 24/7 or visit us in-store for expert advice.
Nationwide delivery – Fast, reliable shipping direct to your site or home.
Products We Supply
Our stock covers a wide range of civil and drainage solutions, including:
Underground drainage pipes & fittings
Surface water drainage systems
Civils and groundworks materials
Inspection chambers & manholes
Ducting & conduit systems
Pipe seals, couplers & accessories
Supplying Every Project, Big or Small
From major construction developments to local DIY improvements, United Civils Supplies ensures you have the right civils and drainage materials at the right time. Our dedicated team is always ready to provide advice, recommend products, and make sure your order arrives when you need it most.
Shop with Confidence
When you choose United Civils Supplies, you’re choosing a partner committed to quality, reliability, and customer satisfaction. Our seamless online store makes it easy to order civils and drainage supplies day or night, and our knowledgeable staff are always available for support.