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    Drainage

    Underground & Surface Drainage Solutions for Building Projects

    Our drainage range includes underground pipe systems, gullies, channel drains, and inspection chambers for managing wastewater and surface runoff on residential and commercial sites. All components are manufactured to meet UK building regulations and designed for long-lasting performance. Whether you're installing foul water systems, rainwater collection, or garden drainage, we supply high-quality products in a range of sizes and fittings. You may also be interested in our Damp Proofing, Cement & Aggregates, and Builders Metalwork ranges to support your groundwork installations.

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    Picture of Brett Martin 110mm Drain Universal Adaptor 110mm Pipe B4801

    Brett Martin 110mm Drain Universal Adaptor 110mm Pipe B4801

    Free delivery over £250 (Exceptions Apply)
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    30 Day Return Policy
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    £8.86
    Picture of Brett Martin 110mm Drain Universal Adaptor 110mm Socket B4901

    Brett Martin 110mm Drain Universal Adaptor 110mm Socket B4901

    Free delivery over £250 (Exceptions Apply)
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    £7.73
    Picture of Brett Martin Drainage Lubricant Gel 500g B9333

    Brett Martin Drainage Lubricant Gel 500g B9333

    Free delivery over £250 (Exceptions Apply)
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    £12.76
    Picture of Brett Martin Drainage Silicone Lubricant Spray 400ml B9555

    Brett Martin Drainage Silicone Lubricant Spray 400ml B9555

    Free delivery over £250 (Exceptions Apply)
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    £13.30
    Clark Drain Galvanised Manhole Cover & PP Frame 10T 600x450mm PC6CG

    Clark Drain Galvanised Manhole Cover & PP Frame 10T 600x450mm PC6CG

    Free delivery over £250 (Exceptions Apply)
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    £48.75
    Picture of Clark Drain Galvanised Manhole Cover & PP Frame 25T 600x450mm PC6EG

    Clark Drain Galvanised Manhole Cover & PP Frame 25T 600x450mm PC6EG

    Free delivery over £250 (Exceptions Apply)
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    £90.12
    Clark Drain Galvanised Manhole Cover & PP Frame 5T 600x450mm PC6BG

    Clark Drain Galvanised Manhole Cover & PP Frame 5T 600x450mm PC6BG

    Free delivery over £250 (Exceptions Apply)
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    £36.55
    Picture of Clark Drain Galvanised Recessed Cover & PP Frame 10T 600x450x65mm CD790R

    Clark Drain Galvanised Recessed Cover & PP Frame 10T 600x450x65mm CD790R

    Free delivery over £250 (Exceptions Apply)
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    £79.51
    Picture of Clark Drain Galvanised Recessed Cover & PP Frame 10T 600x450x80mm CD790R/80

    Clark Drain Galvanised Recessed Cover & PP Frame 10T 600x450x80mm CD790R/80

    Free delivery over £250 (Exceptions Apply)
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    £85.35
    Picture of Clark Drain Galvanised Recessed Cover & PP Frame 10T 600x600x80mm CD791R

    Clark Drain Galvanised Recessed Cover & PP Frame 10T 600x600x80mm CD791R

    Free delivery over £250 (Exceptions Apply)
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    £123.01
    Picture of Clark Drain Galvanised Recessed Cover & PP Frame 5T 300x300x43.5mm T1G3

    Clark Drain Galvanised Recessed Cover & PP Frame 5T 300x300x43.5mm T1G3

    Free delivery over £250 (Exceptions Apply)
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    £69.97
    Picture of Clark Drain Galvanised Recessed Cover & PP Frame 5T 600x450x43.5mm T11G3

    Clark Drain Galvanised Recessed Cover & PP Frame 5T 600x450x43.5mm T11G3

    Free delivery over £250 (Exceptions Apply)
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    £88.53
    Picture of Clark Drain Galvanised Recessed Cover & PP Frame 5T 600x450x46mm CD790R/46

    Clark Drain Galvanised Recessed Cover & PP Frame 5T 600x450x46mm CD790R/46

    Free delivery over £250 (Exceptions Apply)
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    £88.53
    Picture of Clark Drain Galvanised Sealed & Locking Manhole Cover & PP Frame 5T 600x450mm PC6BG

    Clark Drain Galvanised Sealed & Locking Manhole Cover & PP Frame 5T 600x450mm PC6BG

    Free delivery over £250 (Exceptions Apply)
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    £48.22
    Picture of Clark Drain PP Circular Manhole Cover & Frame 3.5T 450mm CD452

    Clark Drain PP Circular Manhole Cover & Frame 3.5T 450mm CD452

    Free delivery over £250 (Exceptions Apply)
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    £28.06
    Picture of Clark Drain PP Square-Round Inspection Cover & Frame 300mm Dia CD300

    Clark Drain PP Square-Round Inspection Cover & Frame 300mm Dia CD300

    Free delivery over £250 (Exceptions Apply)
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    £25.94
    Picture of Clark Drain PP Square-Round Recessed Pavior Cover & Frame 3.5T 300mm Dia 80mm CD300SR

    Clark Drain PP Square-Round Recessed Pavior Cover & Frame 3.5T 300mm Dia 80mm CD300SR

    Free delivery over £250 (Exceptions Apply)
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    £52.99
    Picture of Clark Drain Square-Round Recessed Pavior Galv Cover & Frame 10T 450mm Dia 80mm CD450SR

    Clark Drain Square-Round Recessed Pavior Galv Cover & Frame 10T 450mm Dia 80mm CD450SR

    Free delivery over £250 (Exceptions Apply)
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    £78.45
    Picture of Clark Drain Square-Round Recessed Pavior Galv Cover & Frame 5T 450mm Dia 46mm CD450SR/46SL

    Clark Drain Square-Round Recessed Pavior Galv Cover & Frame 5T 450mm Dia 46mm CD450SR/46SL

    Free delivery over £250 (Exceptions Apply)
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    £88.00
    Picture of Fernco Adaptor Coupling 121-136/110-121mm AC4000

    Fernco Adaptor Coupling 121-136/110-121mm AC4000

    Free delivery over £250 (Exceptions Apply)
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    £11.62

    Frequently Asked Questions – Drainage

    What types of drainage systems do you supply?
    We stock underground drainage pipes, fittings, gullies, inspection chambers, and surface water channels — suitable for both foul water and rainwater management.

    Are your underground pipes compatible with UK building standards?
    Yes — all our underground drainage systems conform to British Standards and are suitable for use in residential and commercial construction.

    Do I need a gully or a channel drain?
    Gullies are ideal for point drainage (e.g. under downpipes), while channel drains are used to collect surface water over larger areas such as driveways or patios.

    Can I connect your drainage systems to existing pipework?
    Yes — our pipes and fittings are compatible with most standard 110mm systems. Adapters are available if you need to join different materials or older pipe sizes.

    Do you offer bulk or trade delivery?
    Yes — we offer trade pricing and local delivery for full drainage packs or bulk orders. Contact us for lead times or large-scale project quotes.