Excellent Reviews

Serving Since 1986

100% Satisfaction

Innovative Solutions

Professional Service

Pro Msi


(509) 483-1305

For those of us living in the Northwest, you know how uncharacteristically hot our weather has been this summer. That heat has driven a record level of service calls for our team. I am proud of how our service members have worked steadily to take care of our customers. Thank you for all the communication shared with me personally to express appreciation for the support received. We value our customers and want you to count on us.

We continue to grow and expand our electrical business. One area of focus has been on LED lighting upgrades. Utility rebates offered by Avista is driving much of these upgrades with customer energy savings often exceeding 60%. The financial savings, combined with increased safety and security for your employees and customers, makes upgrading your lighting a good business decision—one that your CFO will support. To find out more about LED upgrades, contact Jim Waltz, Electrical Sales and Operations Manager, at jwaltz@promsi.com

Another area of focused investment is our refrigeration services. Manuel (Manny) Arceo recently joined our team. He brings a high level of experience in commercial refrigeration as a technician and designer. His focus will be to enhance and expand our capabilities in commercial refrigeration and we will be recruiting more personnel. Enhancement to this area of the business is in response to customer requests for commercial refrigeration install and services. We are responding to your needs! For more information, contact our service manager, Tim Iverson, at tiverson@pro-msi.com.

Pro Mechanical Services remains grounded in our roots of being the regional leader in heating and air conditioning for commercial and industrial facilities. Being the leader also means being an expert in The Washington Energy Code revisions. We continually stay abreast of developments, consulting with our customer to implement code compliance. We are making facilities smarter and safer with controls and automation from our partner, Honeywell. To address the pandemic, our service department partnered with Global Plasma Systems for indoor air quality systems. Creating clean air during a pandemic has become our passion. I continue to be excited about our company and our customer’s future!

Jon Vanos


Currently hiring and looking for talented individuals!