As a full service provider, we supply bases, risers, cones, extended bases, flat-tops and inverts for 4', 5', 6', 8', 10', and 12' diameter precast concrete manholes. Our manholes meet or exceed all the various ASTM, NCDOT, and local municipal specifications for the concrete, structural design, polypropylene reinforced steps and butyl-rubber mastic seal and wraps that we provide.

To help insure against vacuum test concerns, we manufacture our manholes utilizing wet cast concrete and 4", 6" and 8" cast-in style boots. We understand your field concerns. Give our manholes a test.

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