Staheli Trenchless Consultants

1725 200th St SE
Building C, Suite 200
Bothell, WA 98021
Phone: 425-205-4930

Staheli Trenchless Consultants is a boutique engineering firm based out of Bothell, Washington, that specializes in underground construction using a variety of techniques. STC can provide you with the expert engineering service you need to successfully complete your trenchless project.

STC provides services that range from feasibility to full design, bid services, inspection, value engineering and expert witness testimony. As a boutique firm, we are focused on trenchless construction, including tunnel boring, microtunneling, horizontal directional drilling, auger bore pipe jacking, pipe bursting, sliplining and pipe ramming.

Our staff works closely on every project, providing a unique set of perspectives including engineering, geology and inspection. Our record of successful trenchless construction projects has led us to be a well-recognized and often-requested firm for many cities, municipalities and private companies throughout the states of Washington, Oregon, California, Alaska and Montana as well as outside the U.S. as far away as Australia.

We look forward to working with you on your own trenchless project, and continuing to provide excellent service and engineering.