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Washington & Alaska's Union Mechanical Insulation and Firestop Professionals
Certified FRMA Firestop Professionals
Union Trained. State Approved. Contractor Ready.
Heat & Frost Insulators Local 7 and our Contracting Partners are Washington State's leading providers of trained Fire Resistive Material Applicators (FRMA) and Firestop professionals. Our members install fire resistive materials, firestop systems, passive fire protection assemblies, and other critical life-safety systems in commercial, industrial, healthcare, educational, and public facilities. When owners, architects, engineers, and general contractors need a workforce trained beyond minimum requirements, they turn to Local 7 and our Contracting Partners for highly skilled Firestop and FRMA professionals who deliver code-compliant installations, superior workmanship, and enhanced life-safety protection.
Union Trained Skilled Firestop Workers trained in systems, materials and field installationContractor Ready
Signatory contractors prepared to support projects across Washington.Firestop Is Life Safety Work
- Properly installed firestop systems help maintain the fire-resistance rating of walls, floors, joints, and penetrations. This work plays a critical role in limiting the spread of fire, smoke, and toxic gases through a building.
What is FRMA?
- Fire-Resistant Materials Applicator. In Washington State, 24-hour certified FRMA workers are shown the basics to install firestop systems and fire-resistant materials in accordance with approved systems, project specifications, and applicable code requirements.
Why Union Trained and Certified Firestop Matters
While Washington State requires a minimum of 24 hours of approved training for Fire Resistive Material Applicators, Local 7 sets the industry standard through the State's only registered Firestop Apprenticeship Program. Every Local 7 Firestop Journeyman has successfully completed this rigorous three-year apprenticeship, combining extensive classroom instruction, hands-on training, manufacturer-specific certifications, and real-world field experience.
Training does not end upon completion of the apprenticeship. To maintain and advance their knowledge, Local 7 Firestop Journeymen are required to complete a minimum of eight hours of continuing education annually. This ongoing training ensures our members remain current with evolving building codes, industry standards, installation methods, manufacturer requirements, and emerging fire protection technologies.
Life Safety FocusedFirestop protects rated assemblies and helps limit fire and smoke movement.
Hands-On TrainingMembers receive practical training focused on real-world installation.
Code AwarenessWorkers understand the importance of approved systems and documentation.
Project Ready
Our workforce and contractors are ready to support job site needs.
General Contractors & Building Owners
If your project requires Washington State certified FRMA workers, Local 7 can help connect you with signatory contractors who are trained, certified, and ready to perform firestop work.
- Commercial construction
- Hospitals and healthcare facilities
- Schools and public buildings
- Industrial facilities
- Marine and waterfront projects
- Public works and infrastructure
Need Certified FRMA Firestop Workers?
Contact Local 7 Heat & Frost Insulators and Firestop Workers to learn more about Washington State certified FRMA members and signatory contractor availability.
Local 7 Heat & Frost Insulators and Firestop WorkersCertified workforce. Skilled contractors. Firestop done right.
Email Local 7 About FRMAMechanical Insulation • Firestop • Apprenticeship • Energy Conservation • Certified FRMA WorkforceWhat We Do
A clean front door to the Local 7 website, with direct access to the pages members, contractors, workers, and the public need most.
Mechanical Insulation
Energy efficiency solutions that reduce operating costs and extend system life.
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Firestop / FRMA
Life safety through code-compliant firestop systems installed by trained professionals.
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Organize Today
A strong union builds a stronger workforce and a better future for everyone.
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Find signatory contractors committed to quality, safety, and union values.
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Training Center
Apprenticeship and continuing education that build skills, careers, and leaders.
Photo Gallery
A look at our history, our work, our events, and the pride of Local 7 members.
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Latest News
We will be setting up at the park at 9am. Please feel free to come early and stay late. Other activities not listed on the Flyer; we have booked Brother Ahmed Lindsey's Ice Cream truck for the third year and Brother Ulysses Chaves's bouncy house for the second year.
Brothers and Sisters, Limited spots available for the 2026 Local 7 Memorial Golf Tournament. Get your team together and call Nicole at the Union Hall to Sign up! 100% of the tournament proceeds benefit the Wayne J Nettekoven Memorial Scholarship Fund. A huge THANK YOU to the tournament sponsors.
Download:
Wayne J Nettekoven Memorial Scholarship.pdf
Youturn Health provides free, confidential support to members of the International Association of Heat and Frost Insulators and their families to help with challenges like stress, depression, anxiety, grief, substance use, and thoughts of suicide.Upcoming Events 
CE Make up
Jul 08, 2026Local #7 Training facility, Renton Technical CollegeUnion Meeting
Jul 10, 2026Large Auditorium in the Teamsters Building 14675 Interurban Ave S Tukwila, WA 98168Union Meeting
Aug 14, 2026Large Auditorium in the Teamsters Building 14675 Interurban Ave S Tukwila, WA 98168Union Meeting
Sep 11, 2026Large Auditorium in the Teamsters Building 14675 Interurban Ave S Tukwila, WA 98168Continued ed
Sep 11, 2026Local #7 Training facility, Renton Technical College, Bldg. L room 101Contact Elected Officials! Important Links
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