Tight Access Excavation, Inc. was founded in 1990 and is headquartered in Sebastopol, California. Our family has been dedicated to serving the northern bay area for the last three decades reaching from Sonoma, Marin, Napa and San Francisco Counties. We strive to use the best and most advanced techniques to make sure all of our projects are done with exceptional quality. This is also shown in the hard work and diligence we provide at each job we work on from big to small. Being a family run company allows us to not only get the job done, but also when it's done we are proud of the work we leave behind.  



Mike Jr.



Tight Access has consistently proven to be competent professionals with exceptionally high standards and quality of work. They come with our highest recommendations!

Meaghan K. Sirvatka 
AES Construction

I have used Tight Access Excavation for my grading, excavation, drainage & underground utilities for the last 10 to 15 years.
Mike Sedano & his crews are very knowledgeable & capable. They are well equipped; get the job done right & on time. I highly recommend their company for all earthwork needs.

Tom Redmond
Tom Redmond Construction, Inc. 


Tight Access have done two jobs for me recently, one a very large multi faceted custom home excavation, including driveway construction, 65 foundation piers drilled and building pad leveling, and the other a water service job crossing a California rural highway, requiring careful management of the public highway access during construction. In both cases Tight Access were highly skilled, and thoroughly professional and I have no hesitation recommending them.

Mike Korchinsky 
President and Co-Founder
Wildlife Works Carbon LLC