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Shop Brand - Brett Martin Drainage

View range by application

Brett Martin - Cascade - Cast Iron

Brett Martin - Rainwater

Brett Martin - Soil & Waste

Brett Martin - Underground

Brett Martin Rainwater Systems & Building Products

Brett Martin is a leading UK manufacturer of high-quality plastic building products, known for innovation, performance, and reliability. With decades of industry experience, Brett Martin offers an extensive portfolio of rainwater systems, drainage solutions, roofing sheets, plumbing, and underground products trusted by trade professionals across the UK and beyond.

Whether you're working on a domestic build, a commercial project, or a heritage renovation, Brett Martin delivers practical, robust solutions engineered to meet modern building standards while offering long-lasting durability and ease of installation.

Find the Product You Need

  • Residential and commercial construction

  • Renovation and heritage projects

  • Public sector buildings and infrastructure

  • Agricultural, industrial, and retail developments

Find the Product You Need

Use the search bar or category filters above to quickly locate the exact Cascade product you're looking for or give us a call.

Key Features

  • Trusted UK Manufacturer
    Established reputation for quality plastic building products, proudly manufactured in the UK.
  • Complete Building Product Solutions
    From rainwater systems to underground drainage and glazing, Brett Martin covers a full spectrum of building needs.
  • Built for Performance
    Engineered for strength, reliability, and weather resistance across all product lines.
  • Installer-Friendly Design
    Lightweight yet durable systems that are easy to handle, fit, and maintain on-site.
  • Sustainable Manufacturing
    Environmentally responsible production processes with a strong commitment to recycling and energy efficiency.
  • Wide Product Availability
    Extensive stock held across the UK for fast and efficient supply to builders, developers, and merchants.

Brett Martin Underground Drainage offers a comprehensive range of industry compliant drainage systems. It includes below and above ground applications including Underground, Rainwater and Soil & Waste products.

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2812 items

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Displaying items: 1 to 24 of 2812.

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Price
  1. £0.00 - £999.99 2811 item
  2. £1,000.00 and above 1 item
Manufacturer
  1. Brett Martin 2812 item
Category
  1. Cascade - Cast Iron Style 1396 item
  2. Rainwater 493 item
  3. Soil & Waste 439 item
  4. Underground 477 item
Length
  1. 1m 2 item
  2. 1.5m 2 item
  3. 1.8m 16 item
  4. 2m 42 item
  5. 2.5m 33 item
  6. 3m 38 item
  7. 4m 71 item
  8. 5m 1 item
  9. 5.5m 11 item
  10. 6m 43 item
  11. 25m 5 item
  12. 50m 5 item
  13. 100m 5 item
  14. 150m 5 item
Colour
  1. Aluminium 1 item
  2. Anthracite Grey 234 item
  3. Arctic White 75 item
  4. Black 382 item
  5. Black/Grey 5 item
  6. Black/Terracotta 2 item
  7. Black/Yellow 1 item
  8. Black/White 74 item
  9. Black/White/Brown 3 item
  10. Blue 22 item
  11. Brass 8 item
  12. Brown 80 item
  13. Chartwell Green 173 item
  14. Classic Black 185 item
  15. Clear 6 item
  16. Graphite Grey 173 item
  17. Grey 165 item
  18. Grey Olive 72 item
  19. Olive Green 172 item
  20. Oxford Blue 172 item
  21. Porcelain White 172 item
  22. Red 6 item
  23. Red/Blue 1 item
  24. Sandstone 174 item
  25. Silver 20 item
  26. Terracotta 199 item
  27. White 224 item
  28. White Polar 4 item
Range
  1. Access & Inspection 44 item
  2. Access Fittings 2 item
  3. Accessories 7 item
  4. Ancillary Items 18 item
  5. Corner Round 68mm 40 item
  6. Deepstyle 115mm 155 item
  7. Drain 120 item
  8. Duct 17 item
  9. Flexible Couplings 7 item
  10. Grease Traps 4 item
  11. High Capacity - Deepstyle 170mm 102 item
  12. High Capacity - Rectangular 100x75mm 65 item
  13. High Capacity - Round 105mm 120 item
  14. Hoppers 232 item
  15. Industrial Downpipe 110mm 11 item
  16. Industrial Downpipe 160mm 36 item
  17. Industrial Downpipe 200mm 4 item
  18. Linear Drain 7 item
  19. Overflow 21.5mm 15 item
  20. Planters 72 item
  21. Plasson 119 item
  22. Prostyle 106mm 211 item
  23. Push Fit Soil 110mm 253 item
  24. Push Fit Soil 160mm 4 item
  25. Push Fit Soil 82.4mm 3 item
  26. Push Fit Waste 32mm 30 item
  27. Push Fit Waste 40mm 29 item
  28. Push Fit Waste 50mm 17 item
  29. Round 68mm 254 item
  30. Roundstyle 112mm 187 item
  31. Sewer 75 item
  32. Sewerage Treatment 1 item
  33. Solvent Soil 110mm 33 item
  34. Solvent Soil 82.4mm 1 item
  35. Solvent Waste 32mm 39 item
  36. Solvent Waste 40mm 53 item
  37. Solvent Waste 50mm 44 item
  38. Solvent Waste 110mm 15 item
  39. Square 65mm 177 item
  40. Squarestyle 114mm 59 item
  41. Stormwater Management 3 item
  42. Traps 32mm 5 item
  43. Traps 40mm 15 item
  44. Twinwall 55 item
  45. Water Supply 20 item
Type
  1. 2.5° Angled Adaptors 20 item
  2. 280mm Shallow Access Chamber (3 Inlets) 4 item
  3. 315mm Shallow Access Chambers (5 Inlets) 4 item
  4. 450mm Inspection Chamber (5 Inlets) 9 item
  5. 90° Elbow 5 item
  6. 90° Elbow with Female Threaded Offtake 3 item
  7. 90° Elbow with Threaded Male Offtake 3 item
  8. 90° Reducing Tee 2 item
  9. 90° Tee 5 item
  10. 90° Tee with Female Threaded Offtake 5 item
  11. 90° Tee with Threaded Male Offtake 3 item
  12. Access Fittings 39 item
  13. Access Pipes 16 item
  14. Adaptors 40 item
  15. Air Admittance Valves 7 item
  16. Bath Hoppers 72 item
  17. Bath Planters 8 item
  18. Bends 218 item
  19. Bib Tap Hose Union (DZR) 2 item
  20. Boss Pipes 8 item
  21. Bosses 19 item
  22. Bottle Gullies 8 item
  23. Bottle Traps 3 item
  24. Brackets 184 item
  25. Branches 62 item
  26. Bushes 5 item
  27. Chamfer Tool 1 item
  28. Channel Drain 7 item
  29. Channel Pipes 9 item
  30. Clips 18 item
  31. Connectors 59 item
  32. Couplers 101 item
  33. Double Socket Bends 47 item
  34. Double Socket Branches 52 item
  35. Downpipes 6 item
  36. Drain Connectors 4 item
  37. End Plugs 5 item
  38. Female Adaptor (Metric x FI BSP) 7 item
  39. Finials 1 item
  40. Fire Sleeves (4 Hour Fire Integrity) 3 item
  41. Flexible Coulplings 7 item
  42. Gothic Hoppers 16 item
  43. Grease Traps 4 item
  44. Grids 5 item
  45. Gutter Adaptors 19 item
  46. Gutter Angles 183 item
  47. Gutter Clips 47 item
  48. Gutter Protection Systems 3 item
  49. Gutters 92 item
  50. Heads 8 item
  51. Hoppers (Including Grid) 5 item
  52. Hoppers (with Horizontal Socket Inlet) 2 item
  53. Junctions 16 item
  54. Long Box Planters 23 item
  55. Long Hoppers 65 item
  56. Long Radius Bends 24 item
  57. Lug Fixing Packs 2 item
  58. Male Adaptor (Metric x MI BSP) 7 item
  59. Manifold 1 item
  60. MDPE Blue Pipes 20 item
  61. Nipples 10 item
  62. Non Return Valves 2 item
  63. Non-Std Angles 26 item
  64. Offsets 176 item
  65. Ogee Hoppers 24 item
  66. Ogee Planters 16 item
  67. Outlets 87 item
  68. PE to Copper/PB/PEX 3 item
  69. Perforated Pipes 3 item
  70. Pipe Clips 24 item
  71. Pipe Liner 5 item
  72. Pipe Shears 2 item
  73. Plain Ended Downpipes 40 item
  74. Plain Ended Overflow Pipe 2 item
  75. Plain Ended Pipes 18 item
  76. Plain Ended Waste Pipe 12 item
  77. Plass4 Universal Coupler 6 item
  78. Plasson Mechanical Wrench 1 item
  79. Plug Adaptors 3 item
  80. Plugs 10 item
  81. Push Fit Imperial Coupler 4 item
  82. Rainwater Diverters 3 item
  83. Reducers 22 item
  84. Reducing Coupling 3 item
  85. Reducing Set 8 item
  86. Rise & Fall Brackets 15 item
  87. Rubber Waste Adaptors 3 item
  88. Saddle Branches 6 item
  89. Sealing Plates 2 item
  90. Seals 8 item
  91. Sewerage Treatment Centres 1 item
  92. Shoes 88 item
  93. Short Box Planters 25 item
  94. Shrouds 16 item
  95. Single Socket Access Pipe 2 item
  96. Single Socket Bends 74 item
  97. Single Socket Downpipes 16 item
  98. Single Socket Pipes 77 item
  99. Small Hoppers 55 item
  100. Sockets 5 item
  101. Solvent & Lubricant 8 item
  102. Spacer Packs 1 item
  103. Stop Tap Chamber (Complete) 1 item
  104. Stop Taps 3 item
  105. Stopend Outlets 32 item
  106. Stopends 110 item
  107. StormCrate55 Attenuation & Infiltration 3 item
  108. Tees (Branches) 30 item
  109. Terminal Fittings 30 item
  110. Trapped Road Gullies 2 item
  111. Traps 19 item
  112. Triple Socket Bends 4 item
  113. Triple Socket Branches 7 item
  114. Tubular Gullies 1 item
  115. Twinwall Pipe 15 item
  116. Universal Stop Tap 3 item
  117. Wall Plate Elbow (Brass) 3 item
  118. WC Adaptors 4 item
  119. Yard Gullies 3 item
Width
  1. 100x75mm 97 item
  2. 105mm 160 item
  3. 106mm 211 item
  4. 106mm-115mm 2 item
  5. 110mm 431 item
  6. 112mm 188 item
  7. 112mm-112mm 1 item
  8. 112mm-115mm 1 item
  9. 114mm 59 item
  10. 115mm 155 item
  11. 133mm-112mm 1 item
  12. 133mm-133mm 1 item
  13. 150mm 12 item
  14. 160mm 100 item
  15. 160mm-110mm 1 item
  16. 162mm-162mm 1 item
  17. 163mm-111mm 1 item
  18. 170mm 102 item
  19. 188mm-188mm 1 item
  20. 190mm-162mm 1 item
  21. 200mm 34 item
  22. 20mm 23 item
  23. 21.5mm 15 item
  24. 215mm 1 item
  25. 225mm 15 item
  26. 250mm 22 item
  27. 25mm 33 item
  28. 280mm 4 item
  29. 300mm 16 item
  30. 315mm 20 item
  31. 32mm 107 item
  32. 375mm 4 item
  33. 400mm 12 item
  34. 40mm 101 item
  35. 40mm-32mm 3 item
  36. 450mm 11 item
  37. 50mm 82 item
  38. 53.9mm 4 item
  39. 600mm 4 item
  40. 63mm 15 item
  41. 65mm 177 item
  42. 68mm 302 item

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