What People Say About
Cornerstone Construction & Development

“It was an absolute pleasure collaborating with the Sinto Plaza and Cornerstone Construction teams on this project. Excellent communication by all and well thought out project goals are why this team effort produced the very successful result that it did. I look forward to more opportunities to team with Sinto Plaza and Cornerstone Construction on great projects in the future.”

Mike Wallace
Architect

“Cornerstone’s team coordinated this project effectively and maintained regular communication with all stakeholders. They were able to deliver this project on time despite significant challenges. We were very pleased with their service and responsiveness throughout the project.
And we are very pleased with the final product.”

Brandon Livingston
Director of Compliance and Facility Development
CCS Head Start/Early Start


“We have been extremely pleased with the entire team and workmanship. STCU highly recommends Cornerstone for any construction projects, without exception.
Their professionalism and quality of work is second to none.”

David G. Denney
Project Site Manager
Spokane Teachers Credit Union

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“Goodwill Industries has partnered with many contractors over the last 20 years, and I can say, with confidence, that Cornerstone executed a job well done.”

Clark M. Brekke
President and CEO
Goodwill Industries of the Inland Northwest

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“From beginning to end, you have been collaborative and cooperative, and your clear and constant concern for detail and quality work has been more than apparent but, in fact, palpable. You have constructed a center that is beautiful, functional, and will stand the test of time as it provides quality meeting and event spaces for school districts, schools, and larger community partners and members.”

Michael Dunn, Ed.D.
Superintendent
NorthEast Washington Educational Service District 101

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“We at SCCU are very pleased with the work of Cornerstone Construction. When the situation arises in the future for additional work, our first call will be to you.”

Gene Fitzpatrick
President
Spokane City Credit Union

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“We are very pleased with the quality of work and attention to detail that Isaiah and his team brought to the project and their after-completion response to whatever minor
issues that have come up have been exemplary.

 I would wholeheartedly recommend Cornerstone Construction to you.”

Nick Mounsey
Jump Off, LLC


“Cornerstone’s ability to build relationships with the owner, architect, and sub-contractors is a testament to their commitment to excellence.”

Neil Hines
Operations Chief
City of Kennewick Fire Department


“Cornerstone Construction excelled in every aspect of this job. The depth of support from their entire company is a rare find. All employees have the same high level of dedication and commitment to great customer service. Without hesitation, I recommend Cornerstone Construction and look forward to working closely with them on future projects.”

John Hemmingson
Chairman
Lakeside Capital


“Cornerstone has demonstrated strength in pre-construction services, adhering to budgets and delivering projects ahead of schedule. They have worked around occupied areas and have proven to be successful at coordination and focused communication. In summary, I highly recommend them.”

Robert J. Boyle
President
Hanson Industries, Inc.


“Our building has three full floors of medical professionals and their patients. Cornerstone Construction was very sensitive to this fact and scheduled certain aspects of the construction so as not to disrupt our tenants. Despite the fact that we have a very busy building there were no major complaints during construction. In fact, a couple of our tenants complimented Isaiah and his team on their professionalism.

The new tenant and ourselves are very pleased with the quality of work and attention to detail that Isaiah and his team brought to the project. I would recommend Cornerstone Construction to you and in fact, welcome the chance for my organization to work with them again on future projects.”

Rob Daugherty
Managing Partner
Franklin Park Medical Center, LLC