Completing your project with confidence
At Western Interstate, we take pride in being a full-service general commercial contractor and construction manager serving the Missoula Valley, Bitterroot Valley, Flathead Valley, and Western Montana for over 30 years. Our team of experts has a wealth of experience in commercial construction and industrial work, with a legacy of completing projects as a general contractor, construction manager, or in a design/build role, accepting full responsibility for every project from land purchase to owner occupancy.
Our History
Founded in 1987, Western Interstate has grown to become a reputable and trusted partner for numerous commercial construction projects. Our company is led by Mark Quinn, a highly experienced and accomplished construction professional with decades of experience in commercial construction, including steel buildings, multi-family construction, and contracting management. Mark's expertise has been invaluable in driving the success of our projects, and we continue to build strong relationships with reputable subcontractors and suppliers.
Our Services
As a full-service commercial contractor, we offer a wide range of services, including design-build, construction management, and general contracting. Our experienced team is capable of handling various contractual arrangements, from firm, lump-sum contracts to cost-reimbursable, guaranteed-not-to-exceed contracts. We understand the importance of communication and project collaboration, ensuring that every project is completed on time, within budget, and to the highest standards of quality.
Our Approach
At Western Interstate, we pride ourselves on our ability to understand the unique needs and goals of each project, working closely with our clients to ensure that their vision is brought to life. Our experienced team is dedicated to delivering exceptional results, providing expertise from concept to completion, and ensuring a seamless transition upon project completion.
Our Experience
Our company has had the privilege of working on numerous notable projects, including commercial and industrial developments, education facilities, and healthcare complexes. Our portfolio of work is a testament to our dedication to quality, our commitment to our clients, and our ability to overcome any challenge that may arise during the construction process.
Join Our Team
If you're interested in joining our team, we welcome applications from qualified and motivated individuals who share our passion for commercial construction and customer satisfaction. We offer competitive wages and benefits, as well as opportunities for professional growth and development.
Get in Touch
If you have a project you'd like to discuss, please don't hesitate to contact us. We're always happy to hear from potential clients and explore ways we can work together to bring your construction vision to life.
General Contractor Review Summary
Western Interstate Inc. has received a 5-star review from a satisfied customer, Aaron Gingerelli. The company has successfully completed multiple projects, including new construction and renovation projects, for the reviewer.
Performance and Recommendation
The reviewer praises Western Interstate Inc. for being reliable, responsive, and competent. They highly recommend the company as a quality general contractor.

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