Stair pressurisation contractors in Seattle

2 stairwell pressurisation companies in Seattle. Pressure differential systems.

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Integra Testing Services

National TAB and commissioning firm with an ICB/TABB smoke-control certification.

Contractor 100+ people 6 offices

Mechanical smoke extract Stairwell pressurisation

Mentor, Ohio · HQ View company
MacDonald-Miller Facility Solutions

Smoke-control and Seattle SC-1 pressurisation testing across the Pacific North West.

Contractor 100+ people 5 offices

Mechanical smoke extract Stairwell pressurisation

Seattle, Washington · HQ View company
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