• PERMACAST®
• COR+GARD®
• CONMICSHIELD®

Precise & Uniform Placement,
No Entry Spincast
Channel, Bench, Walls & Cone
 

THE 'HOLE SOLUTION

30% - 50% of inflow & infiltration enters trough your manholes
Let The Diamond Engineering Company fix All your Manhole problems... we are ... the "hole Solution!