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“I would like to thank you for the professional job you did for my legalization of my barn and the addition of a mud room to the structure.
Especially the walking me through the workings of the County Planning and Permitting process. At the plan check Bob would answer any questions that would come up.
Bob’s follow up on the project was also very good and helpful.”
– Neil S.

“Ost Engineering has been a valuable partner on two projects: a significant home remodel and a new home construction. Bob offered good design suggestions as we were finalizing the design and solid engineering to back up the final design. The final documentation package was thorough and went through the permit process very quickly. ”
– Dave W.

“We have been doing business with Bob Ost since 2013, when he did a site plan for our property. In 2015, Bob drew up blueprints to submit to Sonoma County’s PRMD for construction
of a building we built to look like the 1860’s Coleman Valley Schoolhouse from outside, but a beautiful
library, with adjoining bathroom from the inside. We completed construction in 2016. Bob did a marvelous job, including a design to circumvent the drainage problem plaguing the preceding outbuilding at the same spot. He is professional, courteous, responsive, knowledgeable, and experienced. We cannot recommend him highly enough!”
– Mary B. & Michael K.

“Thank you for making this happen”
– Alan M.

Ost Engineering Inc

4310 Mt. Taylor Dr.
Santa Rosa, California 95404

Phone: (707) 579-1509
Fax: (707) 579-1988
Email: robert@ostsite.com