Skip to content

Welcome to our store

  • Home
  • Drainage & Lintels
    • Steel Lintels
    • Concrete Lintels
    • Drainage
      • All Drainage
      • Drainage Accessoires
      • Underground Drainage Fittings
  • Building Materials
    • Sealants, Tapes, Adhesives & Caulks
      • CT1
      • Sealants
      • Adhesives
      • Tapes
      • Caulks
    • Roofing
      • All Roofing
      • Roofing Accessoires
    • Bricks & Blocks
    • Brickwork Accessories
    • Plastering & Rendering
      • Plastering & Rendering Accessories
    • Damp Proofing & Ventilation
  • Chemicals & Cleaners
  • Roof Windows & Loft Ladders
  • Sewage Treatment & Containment
  • Metal Fixings
  • Specialist Products
  • Contact
Log in
    Square and Compass Building Supplies
    • Home
    • Drainage & Lintels
      • Steel Lintels
      • Concrete Lintels
      • Drainage
        • All Drainage
        • Drainage Accessoires
        • Underground Drainage Fittings
    • Building Materials
      • Sealants, Tapes, Adhesives & Caulks
        • CT1
        • Sealants
        • Adhesives
        • Tapes
        • Caulks
      • Roofing
        • All Roofing
        • Roofing Accessoires
      • Bricks & Blocks
      • Brickwork Accessories
      • Plastering & Rendering
        • Plastering & Rendering Accessories
      • Damp Proofing & Ventilation
    • Chemicals & Cleaners
    • Roof Windows & Loft Ladders
    • Sewage Treatment & Containment
    • Metal Fixings
    • Specialist Products
    • Contact
    Log in Cart

    Item added to your cart

    View cart

    Filter:

    Availability
    0 selected
    Reset
    Availability
    Price
    The highest price is £11,308.70 Reset
    £
    £
    Remove all

    169 products

    Filter and sort Filter

    Filter and sort

    Filter

    169 products

    Availability
    Clear
    Price

    The highest price is £11,308.70

    £
    £
    Clear
    Remove all
    Remove all

    169 products

    • 115G Membrane

      115G Membrane

      115G Membrane

      Regular price £49.99 GBP
      Regular price Sale price £49.99 GBP
      Unit price /  per 
    • 2 In 1 Ventilator

      2 In 1 Ventilator

      2 In 1 Ventilator

      Regular price £5.00 GBP
      Regular price Sale price £5.00 GBP
      Unit price /  per 
    • 25mm Mechanical Coupler

      25mm Mechanical Coupler

      25mm Mechanical Coupler

      Regular price £8.00 GBP
      Regular price Sale price £8.00 GBP
      Unit price /  per 
    • 25mm x 90 Degree Mechanical Elbow

      25mm x 90 Degree Mechanical Elbow

      25mm x 90 Degree Mechanical Elbow

      Regular price £10.00 GBP
      Regular price Sale price £10.00 GBP
      Unit price /  per 
    • 5 Meter Tape Measure

      5 Meter Tape Measure

      5 Meter Tape Measure

      Regular price £4.99 GBP
      Regular price Sale price £4.99 GBP
      Unit price /  per 
    • 63mm x 50m Green Twindall Duct

      63mm x 50m Green Twindall Duct

      63mm x 50m Green Twindall Duct

      Regular price £78.00 GBP
      Regular price Sale price £78.00 GBP
      Unit price /  per 
    • Access Panel

      Access Panel

      Access Panel

      Regular price £12.99 GBP
      Regular price Sale price £12.99 GBP
      Unit price /  per 
    • Aerosol Adhesive 500ml

      Aerosol Adhesive 500ml

      Sale

      Aerosol Adhesive 500ml

      Regular price £6.60 GBP
      Regular price £7.00 GBP Sale price £6.60 GBP
      Unit price /  per 
      Sale
    • Airbrick Terracotta

      Airbrick Terracotta

      Airbrick Terracotta

      Regular price £1.30 GBP
      Regular price Sale price £1.30 GBP
      Unit price /  per 
    • Aluminium Foil Tape

      Aluminium Foil Tape

      Aluminium Foil Tape

      Regular price From £6.50 GBP
      Regular price Sale price From £6.50 GBP
      Unit price /  per 
    • Angle Bracket

      Angle Bracket

      Angle Bracket

      Regular price From £0.83 GBP
      Regular price Sale price From £0.83 GBP
      Unit price /  per 
    • Angle Plate

      Angle Plate

      Angle Plate

      Regular price From £0.37 GBP
      Regular price Sale price From £0.37 GBP
      Unit price /  per 
    • Apex Tray

      Apex Tray

      Sale

      Apex Tray

      Regular price £4.50 GBP
      Regular price £5.00 GBP Sale price £4.50 GBP
      Unit price /  per 
      Sale
    • Bathroom & Kitchen Sealant DIY UK

      Bathroom & Kitchen Sealant DIY UK

      Bathroom & Kitchen Sealant DIY UK

      Regular price £4.20 GBP
      Regular price Sale price £4.20 GBP
      Unit price /  per 
    • Blue Water Main

      Blue Water Main

      Blue Water Main

      Regular price From £56.00 GBP
      Regular price Sale price From £56.00 GBP
      Unit price /  per 

    • Britsh Standard Batten

      Britsh Standard Batten

      Regular price £1.25 GBP
      Regular price Sale price £1.25 GBP
      Unit price /  per 
    • Brown Plastics Wall Plugs

      Brown Plastics Wall Plugs

      Sale

      Brown Plastics Wall Plugs

      Regular price £1.99 GBP
      Regular price £2.50 GBP Sale price £1.99 GBP
      Unit price /  per 
      Sale
    • BT1

      BT1

      Sale

      BT1

      Regular price £10.99 GBP
      Regular price £13.50 GBP Sale price £10.99 GBP
      Unit price /  per 
      Sale

    • Bulk Bag

      Sale

      Bulk Bag

      Regular price £7.50 GBP
      Regular price £10.00 GBP Sale price £7.50 GBP
      Unit price /  per 
      Sale
    • Casstellated Tile Ventilator

      Casstellated Tile Ventilator

      Sold out

      Casstellated Tile Ventilator

      Regular price £0.00 GBP
      Regular price Sale price £0.00 GBP
      Unit price /  per 
      Sold out
    • Catchment Tray

      Catchment Tray

      Sale

      Catchment Tray

      Regular price £5.70 GBP
      Regular price £8.20 GBP Sale price £5.70 GBP
      Unit price /  per 
      Sale

    • Cavity Closer

      Cavity Closer

      Regular price From £9.60 GBP
      Regular price Sale price From £9.60 GBP
      Unit price /  per 
    • Cavity Tray Stop End

      Cavity Tray Stop End

      Sale

      Cavity Tray Stop End

      Regular price £2.00 GBP
      Regular price £3.00 GBP Sale price £2.00 GBP
      Unit price /  per 
      Sale
    • Chamber Base

      Chamber Base

      Chamber Base

      Regular price £49.99 GBP
      Regular price Sale price £49.99 GBP
      Unit price /  per 
    • 1
    • 2
    • 3
    • …
    • 8

    Subscribe to our emails

    Payment methods
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Maestro
    • Mastercard
    • PayPal
    • Shop Pay
    • Union Pay
    • Visa
    © 2025, Square and Compass Building Supplies Powered by Shopify
    • Choosing a selection results in a full page refresh.
    • Opens in a new window.