Our Story

In underground water construction, even the smallest leak can mean hours of wasted work and expensive repairs. Time and again, the problem came down to the same issue: gaskets weren’t sealing properly. The tools being used simply weren’t designed for the job; the strike surfaces were the wrong shape, making it nearly impossible to get consistent contact, especially on the underside of the pipe once it was in the trench.

That challenge led to the creation of MJ-HAMMER: a tool built specifically for mechanical joint assembly. Its design makes it easier to reach problem areas, apply force more accurately, and achieve a tight, reliable seal every time.

Today, MJ-HAMMER has become a trusted solution across the industry, helping crews work faster, avoid costly rework, and keep water systems running the way they should.