County Line Mason Supplies we've served Long Island For over three decades!



County Line Mason Supply  provides storm water management solutions for every project, leading to the development of superior quality drainage we carry a wide range of products for a variety of residential and commercial solutions.

Our product line includes  trench and channels drains, conventional drains, catch basins and grates; the well established water flow discharge

Masonry & Drainage

Supply Yard Aggregate & Soils Hardscape Masonry & Drainage Residential Site Development Commercial Site Development Marine Related Projects

  • Drainage & Venting
  • ADS
  • Flo-Well
  • Flotech
  • NDS
  • PVC
  • Bell Traps
  • Brick & Foundation Vents
  • Drain Plates

County Line Mason Supplies

167 Depot Road

11746 Huntington Station