Underground Drainage

The System of Drainage pipes and fittings that are installed below ground level is known as Underground Drainage. Browse our range of Drain pipes, and socket for sewer, rainwater and services applications. Contact Build4less on Live Chat or by phone 020 3481 1978 if you need help - Free Delivery on all orders over £300. Read Our Guide to know more about underground drainage.

110mm x 3m Single Socket (S/S) Underground Pipe
Vendor
Floplast
Regular price
£8.61 £10.33
Sale price
£8.61 £10.33
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£0.00
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110mm Single Socket 87° Bend Swept
Vendor
Floplast
Regular price
£4.55 £5.46
Sale price
£4.55 £5.46
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£0.00
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110mm Underground Double Socket Y Junction
Vendor
Floplast
Regular price
£4.49 £5.39
Sale price
£4.49 £5.39
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£0.00
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110mm Double Socket 45º Bend
Vendor
Floplast
Regular price
£4.73 £5.68
Sale price
£4.73 £5.68
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£0.00
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110mm Underground Double Socket Coupler
Vendor
Floplast
Regular price
£1.55 £1.86
Sale price
£1.55 £1.86
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£0.00
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110mm Bottle Gully Rectangular Grid
110mm Bottle Gully Rectangular Grid
Vendor
Floplast
Regular price
£16.35 £19.62
Sale price
£16.35 £19.62
Regular price
£0.00
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per 
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110mm x 6m Single Socket (S/S) Underground Pipe
Vendor
Floplast
Regular price
£20.45 £24.54
Sale price
£20.45 £24.54
Regular price
£0.00
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per 
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110mm Underground Double Socket T Junction
Vendor
Floplast
Regular price
£4.49 £5.39
Sale price
£4.49 £5.39
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£0.00
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per 
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110mm Single Socket 30º Bend
Vendor
Floplast
Regular price
£4.55 £5.46
Sale price
£4.55 £5.46
Regular price
£0.00
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per 
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Solvent Weld Soil Boss Adaptor Black - All Sizes
Solvent Weld Soil Boss Adaptor Black - All Sizes - Floplast Drainage
Vendor
Floplast
Regular price
from £2.26 £2.71
Sale price
from £2.26 £2.71
Regular price
£0.00
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per 
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110mm x 3m Plain Ended (P/E) Underground Pipe
Vendor
Floplast
Regular price
£8.34 £10.01
Sale price
£8.34 £10.01
Regular price
£0.00
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per 
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Drainage Bottle Gully Square Grid - 110mm
Drainage Bottle Gully Square Grid - 110mm - PBSL Drainage
Vendor
PBSL
Regular price
£11.99 £14.39
Sale price
£11.99 £14.39
Regular price
£0.00
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per 
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Drainage Bend Single Socket 110mm - All Angles
Drainage Bend Single Socket 110mm - All Angles - Tetraflow Drainage
Vendor
Tetraflow
Regular price
£2.43 £2.92
Sale price
£2.43 £2.92
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£0.00
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Ring Seal Soil Boss Pipe Single Socket - 110mm Cast Iron Effect
Ring Seal Soil Boss Pipe Single Socket - 110mm Cast Iron Effect - Floplast Drainage
Vendor
Floplast
Regular price
£21.23 £25.48
Sale price
£21.23 £25.48
Regular price
£0.00
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Ring Seal Soil Access Pipe Single Socket - 110mm Cast Iron Effect
Ring Seal Soil Access Pipe Single Socket - 110mm Cast Iron Effect - Floplast Drainage
Vendor
Floplast
Regular price
£58.69 £70.43
Sale price
£58.69 £70.43
Regular price
£0.00
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per 
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Ring Seal Soil Pipe Clip - 110mm Cast Iron Effect
Ring Seal Soil Pipe Clip - 110mm Cast Iron Effect - Floplast Drainage
Vendor
Floplast
Regular price
£7.99 £9.59
Sale price
£7.99 £9.59
Regular price
£0.00
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per 
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Ring Seal Soil Access Pipe Single Socket - 110mm Black
Ring Seal Soil Access Pipe Single Socket
Vendor
Floplast
Regular price
£12.01 £14.41
Sale price
£12.01 £14.41
Regular price
£0.00
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per 
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Ring Seal Soil Branch - 135 Degree X 110mm Black
Ring Seal Soil Branch - 135 Degree X 110mm Black - Floplast Drainage
Vendor
Floplast
Regular price
£14.88 £17.86
Sale price
£14.88 £17.86
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£0.00
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per 
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Ring Seal Soil Branch Single Socket - 112.5 Degree X 110mm Black
Ring Seal Soil Branch Single Socket - 112.5 Degree X 110mm Black - Floplast Drainage
Vendor
Floplast
Regular price
£14.88 £17.86
Sale price
£14.88 £17.86
Regular price
£0.00
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per 
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Ring Seal Soil Bend Single Socket - 92.5 Degree X 110mm Black
Ring Seal Soil Bend Single Socket - 92.5 Degree X 110mm Black - Floplast Drainage
Vendor
Floplast
Regular price
£6.10 £7.32
Sale price
£6.10 £7.32
Regular price
£0.00
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Yard Gully Set with Silt Bucket and Ductile Iron Gating - 12.5 Tonne x 300mm Diamater
Yard Gully Set with Silt Bucket and Ductile Iron Gating - 12.5 Tonne x 300mm Diamater - PBSL Drainage
Vendor
PBSL
Regular price
£139.99 £167.99
Sale price
£139.99 £167.99
Regular price
£0.00
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Flexible Coupling Straight - 150mm - 165mm
Flexible Coupling Straight - 150mm - 165mm
Vendor
Mission Rubber
Regular price
£24.89 £29.87
Sale price
£24.89 £29.87
Regular price
£0.00
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Unequal Junction Double Socket 45 Degree x 160mm x 110mm
Unequal Junction Double Socket 45 Degree
Vendor
Floplast
Regular price
£14.60 £17.52
Sale price
£14.60 £17.52
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£0.00
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per 
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160mm x 6m Plain Ended ( P/E ) Underground Pipe
160mm x 6m Plain Ended ( P/E ) Underground Pipe
Vendor
Floplast
Regular price
£39.97 £47.96
Sale price
£39.97 £47.96
Regular price
£0.00
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per 
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160mm Y Junction Double Socket 45 Degree
Y Junction Double Socket 45 Degree
Vendor
Floplast
Regular price
£14.89 £17.87
Sale price
£14.89 £17.87
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£0.00
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per 
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110mm Black Universal Adaptor - Ring Seal PVC Pipe to Cast Iron or Clay Drainage
110mm Black Universal Adaptor
Vendor
Floplast
Regular price
£9.58 £11.50
Sale price
£9.58 £11.50
Regular price
£0.00
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Silt Bucket For 300mm x 600mm Yard Gully
Silt Bucket For 300mm x 600mm Yard Gully
Vendor
Build4less
Regular price
£52.10 £62.52
Sale price
£52.10 £62.52
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£0.00
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110mm Lowback P Trap Gully 90 Degree
110mm Lowback P Trap Gully 90 Degree
Vendor
Floplast
Regular price
£9.19 £11.03
Sale price
£9.19 £11.03
Regular price
£0.00
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per 
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110mm Back Inlet Bottle Gully Circular Grid
110mm Back Inlet Bottle Gully Circular Grid
Vendor
Floplast
Regular price
£23.01 £27.61
Sale price
£23.01 £27.61
Regular price
£0.00
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per 
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110mm Single Socket 87.5 Degree Bend
Single Socket 87.5 Degree Bend
Vendor
Floplast
Regular price
£4.55 £5.46
Sale price
£4.55 £5.46
Regular price
£0.00
Unit price
per 
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110mm Single Socket 15º Bend
Vendor
Floplast
Regular price
£4.55 £5.46
Sale price
£4.55 £5.46
Regular price
£0.00
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per 
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110mm Single Socket 45º Bend
Vendor
Floplast
Regular price
£4.55 £5.46
Sale price
£4.55 £5.46
Regular price
£0.00
Unit price
per 
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What is underground drainage?

Underground drainage is the general term to sub-surface drainage. The system of pipes and fitting that is installed below ground level is known as underground drainage. This system is mainly used to transport foul drainage and rainwater flow to the sewage treatment facility.

What do you mean SUDS?

Sustainable Drainage System or Sustainable Urban Drainage System is a new way of thinking about how we drain our land and building.

What material are drainage pipes made of?

PVC-U

Un-plasticised polyvinyl chloride is the most frequently used for pipe installation. PVC-U is versatile, rigid and are suitable for both above and below the ground.

Cast iron

Cast iron drainage pipes are extremely durable and strong and can withstand high pressure. The installation of cast iron pipes consumes a bit of time and energy as they are often manufactured in short lengths due to their heavier weights.

CPVC

Chlorinated polyvinylchloride is widely used in water and sanitary system for hot and cold water distribution. CPVC can resist corrosion and have high tolerance for acids. These pipes are lightweight and non-toxic and fire-resistant.

Drainage gullies and gully traps

Drainage gullies allow you to connect pipes into an underground drainage system without allowing any smell to pass through the system. A gully trap is provided outside the building before connecting to external sewerage line to prevent foul gases to enter the building by providing a water seal.

Inspection chambers

Inspection chamber are the essential part of the underground drainage system providing access for inspecting, testing, and clearing blockage. This chamber allows the required authority to check the sanitary without disturbing the building owners.

Benefits of underground drainage?

  • Provides an efficient way of waster water management and foul discharge from above ground drainage system.
  • Manufactured in PVC-U to give a strong durable product, lightweight and easy to work with and suitable for high temperatures and waste discharge.
  • Fittings have an aesthetic modern look, are compact in size yet remain within the British Standard specification.
  • Push-Fit joint through an innovatively designed seal and snap cap system.

TESTING DRAINS

All Drainage Installations should be tested in accordance with the appropriate approving authority. If in doubt reference should be made to current editions of Building Regulations (Approved Document H).

Here at Build4Less, we are dedicated to providing our customers with the best products at the best prices possible. Our support team is eager to help and can be contacted by calling 020 34811978 or via our Live Chat.

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