We Are

Johansen Mechanical - Keith Johansen

Keith Johansen

President, Owner

Johansen Mechanical - Derek Holm

Derek Holm

Vice President, Owner

Johansen Mechanical - Debbie Juno

Debbie Juno

Financial Controller; AR/AP - JMI 7 years
Hometown Ferndale, WA
Before JMI Studies and Certificates from Texas for Business and Accounting. Over 20 years experience in senior accounting leadership positions including ownership in a general contractor construction company.
Why JMI? Being apart of a family business allows me to maintain my family and community roots while reinforcing a team dedicated to quality and excellence. JMI mirrors my most important values. Strong family values grounded in hard work and the belief that strength comes from within ourselves and our community. Maintaining the leading edge by utilizing the most advanced technology, tools, and skilled labor, to deliver our customers the best finished product there is to offer.

Johansen Mechanical - Dave Bly

David Bly

Division Manager, Custom Metals - JMI 27 years
Hometown San Diego, California
Before JMI HVAC Apprenticeship, 12 years of shop and field experience in addition to 21 years of Project Management and Estimating. 33 years total sheet metal experience.
Why JMI? JMI promotes customer trust and appreciation by providing high quality products through innovative design and fabrication techniques. Our superb reputation and decades of experience are second to none.
If you had an endless supply of anything? Happiness

Johansen Mechanical - Andy Leishman

Andy Leishman

Division Manager, Service - JMI 28 years
Hometown Snohomish, WA
Before JMI Graduated from Lake Washington Technical College. Started as a Project Manager Assistant before entering the Service Apprenticeship in 1998.  

Why JMI? JMI considers our select group of technicians to be the most trained, professional, and qualified in the industry. They are supported by our topline office staff who are familiar with the technical and business aspects. We strive to provide the customer with predictable high quality results everytime.
If you were famous, what would it be for? Being the World's Best Dad

Johansen Mechanical - Michael McCoy

Michael McCoy

Division Manager, Energy & Controls


Johansen Mechanical - Mark Nosbusch

Mark Nosbusch

Superintendent - JMI 16 years
Hometown Devils Lake, North Dakota
Before JMI Local 553 Apprenticeship. 42 years total sheet metal experience in over 30 different states.
Why JMI? I enjoy working with the younger tradesman to create an understanding of what we can bring to the table through personal characteristics, work ethic, craftsmanship to benefit our employer and the customer. The owners are what sets JMI apart from other employers I have had pleasure to work for. Ownership at JMI is approachable and considerate of their employees compared to any other place I have worked.
Travel back in time or the future? Back to the 40s & 50s because of the cars.

Johansen Mechanical - Bill Allen

Bill Allen

Shop Foreman - JMI 31 years
Hometown Wilmington, Delaware
Before JMI US Army, HVAC Apprenticeship, Refrigeration Mechanic. 33 years total sheet metal experience.
Why JMI? JMI is about providing the customer with the best service possible. Seeing what the customers needs are and working together to give insights on how best accomplish the tasks so that in the end, the customer is both happy with the product and the quality of the craftsmanship.
Favorite food from childhood? Cheesesteak Sandwiches

Making a Difference.

JMI's second-generation dedicated owners spend a considerable amount of time establishing and maintaining personal connections between the families & communities to which we operate.

Specialized Trade.

Because of JMI's long-term social connections within the community... We have a deep knowledge of our industry, partners & suppliers, and most importantly our customers.

Complexity to Rapid Response.

Our company's structure enables management to have a shortened distance from the front lines, which translates over to effectively & efficiently deploying the right resources for a rapid response.

Family owned businesses aren’t particularly thought of as being innovative.

However, our skilled craftsman have not only received extensive training by means of the Western Washington Sheet Metal JATC apprenticeship program. JMI’s Employee Development program helps continue to advance skills and certifications to implement innovative results.

Building Information Modeling (BIM) was considered an industry “trend” over a decade ago. However, Johansen Mechanical was one of the first companies in the early 2000s to adopt the use of Revit MEP Software and begin integrating the BIM Model into our work processes. Although this was an investment in the beginning… Our proven methodologies have enabled robust communications and the ability to take a responsive approach to unforeseen or to potential problems throughout all stages of construction. This has enabled our team to meet our clients’ needs within the original estimated costs and minimize the amount of potential change-orders.

Johansen Mechanical, Inc. was part of the beta tester community for testing and giving feedback on one of the most recognizable and commonly used Mechanical Estimating Software – QuoteSoft formally known as QuoteExpress. This powerful solution has allowed our estimating team to generate on screen digital takeoffs to estimate labor, material costs for ductwork, pipe, fittings, etc. for a variety of Mechanical & HVAC projects.

Our Purchasing Department, Project Management Team, and Accounting Staff have utilized the Dexter-Chaney construction and accounting management software Spectrum for over the past 15 years. This system tied into our communitive process from QuoteExpress and Revit MEP software has enabled our team to provide robust/in-depth communications from between our internal operations as well as the partners, and trade members, clients, and owners to which we operate with on the regularly bases during all stages of construction.

In our shop, we have utilized a series of metal working technology that integrates with our CAD software to massively produce Mechanical & HVAC mechanical parts and assemblies, as well as our Architectural & Custom work.


Johansen Mechanical - Seattle
Unique in our industry to be one of the few Sheet Metal Trade members to design/design-assist, fabricate, and install products for the entire building envelop, JMI's services are not limited to Commercial HVAC and Air Quality and Automation System Monitoring & Controls, but includes: Architectural Sheet Metal, Kitchens/Food Services, Medical/Healthcare and Custom Metal products.

We have performed work in notable buildings such as The Space Needle, Port of Seattle (SeaTac), CenturyLink Field, Safeco Field, King Street Station, Russell Investments, just to name a few.

  • Commercial HVAC & Air Quality
  • Automation System Monitoring & Controls
  • Architectural Sheet Metal & Custom Metal
  • Service & Maintenance
  • Kitchens/Food Services
  • Medical/Healthcare
  • Educational (K-12 and Higher Education)
  • Transportation

Staff Directory