Who We Are
Keystone Building takes pride in every one of our jobs and it shows. Our company has offered experienced and reliable contracting construction services in Oregon since 2003. Today we continue to provide quality craftsmanship and offer a variety of services for new construction, renovations, additions and tenant improvements. Keystone Building, Inc. strives to offer the best possible product within any given budget or schedule. Our decades of experience, extensive network of professional sub-contractors and local suppliers, enable us to be that builder you can trust. We are skilled at working together as a team and we enjoy working closely with clients, sub-contractors, architects and designers to get the project done. We will work tirelessly for you to get your project done correctly, on time and budget.
Keystone Building, Inc.
About Us
Darin S. MacDonald - President

Darin S. MacDonald provides Keystone Building with over 25 years of experience in the construction industry encompassing a multitude of disciplines on projects of many types and sizes. As President, Darin S. MacDonald coordinates the production and operations of all of Keystone Building’s projects. He is always significantly involved with theconstruction projects, works closely with sub-contractors and provides much of the oversight for all the projects and field personnel. From pre-construction through successful completion of the project, Darin will ensure that the customer's expectations have been met or exceeded. His experience and knowledge of the overall industry provides a sound foundation for Keystone Building’s successful growth and profitability. Darin is personable, flexible and dedicated to open communication to ensure smooth, safe and successful progress of his projects. Darin is detail oriented, reliable and committed to providing the highest quality construction services.
4 Reviews
Relationship: ClientProject Date: Jun 2013

Darin with Keystone Building remodeled several rooms in our new house; including 1) renovating the kitchen island, 2) converting a kitchen desk to a bar w/wine fridge, 3) moving a wall & building a ha...Read More

Cynthia Johnson
Relationship: ClientProject Date: Oct 2013

Darin was a joy to work with. From start to finish, he listened to my thoughts and ideas, offered great suggestions and alternatives, communicated with me on a regular basis, notified me of schedule c...Read More

Relationship: ClientProject Date: Sep 2015

Darin and his crew did great work, completed the work in a timely fashion, did not go overbid, and were generally great to work with.Read More

Stephanie Anderson Stroup
Relationship: OtherProject Date: May 2016

We have had the opportunity to see several homes that Daren has designed and built. His attention to detail is superb and he delivers an excellent final product. in addition, Daren is a great commun...Read More

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