Tri-County Insulation & Acoustical Contractors

Our Commitment as One of the Nation’s Top Commercial & Residential Insulation Contractors

At Tri County Insulation we welcome challenges. The more difficult a project is, the harder we work to provide real solutions and state-of-the-art products.  We partner with you from concept to completion, which enables us to design and implement insulation plans that meet or exceed your  goals.

Our Insulation design and installation team consists of highly qualified, experienced engineers and estimators that work diligently to minimize problems and ensure we stay on schedule.  We are a single source for any type of Insulation material with all resources available in-house.  For acoustical Insulation projects, we can provide expertise in choosing the best material to enhance or soundproof your project.  We utilize the latest industry technologies for all of our products and services.

Tri County Insulation operates one of the largest commercial insulation companies in the state of California with the goal to be your commercial insulation specialist.  When your development project is ready for insulation, you can count on our highly experienced crews who are trained in all aspects of jobsite safety, to get the job done.  If you need expertise on any aspect of Insulation, Tri County Insulation can deliver.

Mission Statement

Tri County Insulation’s mission is to be the best supplier of Insulation services in the Western United States and to bring expertise, experience and quality to each project.  We continue to upgrade and expand facilities to better serve you,  our  commercial, industrial, agricultural, educational, and other construction developers. Before you start your next construction project, please call or email for more information about our commercial Insulation contractor services.


Our Management Team

Mark Gieseke
Owner & President
Tri-County Insulation
910 George St. Santa Clara, CA 95054
O: 1-408-567-9955

Director of Operations
Tri-County Insulation
910 George St. Santa Clara, CA 95054
O: 1-408-567-9955

Brad Frey
Director of Business Development
Tri-County Insulation
910 George St. Santa Clara, CA 95054
O: 1-408-567-9955 C: 408-859-4668

Charlie – Branch Manager – Cell  805-448-5756


715 Arctic Ave.
Santa Maria, Ca 93454

Phone: 805-332-3480
Fax: 805-332-3616

Tim – Production Manager – Cell  831-212-1132


1900 F Commercial Way
Santa Cruz, CA 95065

Phone: 831-475-2205
Fax: 831-475-8243