Business Details
50+ Years
experience
Engineered Seismic & Vibration Control Solutions
Mason West has been a trusted leader in seismic restraint systems and vibration/noise control solutions since 1973. Our company combines cutting-edge engineering expertise with decades of hands-on experience to deliver code-compliant, durable systems for commercial and industrial buildings. We specialize in seismic bracing, vibration isolation, noise control, and flexible connections, serving California, Nevada, and Hawaii. Our in-house engineering team, AJ Engineering, collaborates closely with clients to ensure optimal performance of mechanical, electrical, plumbing, and fire protection systems. With over 50 years of industry leadership, we maintain exclusive partnerships with globally recognized manufacturers like Mason Industries and Mercer Rubber Co. Our commitment to innovation is demonstrated through our OSHPD-approved seismic manual and state-of-the-art design capabilities, including 3D seismic brace coordination.We operate from four strategically located offices and maintain a 40,000 sq ft headquarters in Placentia, CA, equipped with fabrication facilities. Our team of experienced professionals provides personalized support throughout all project phases, from conceptual design to construction completion. We pride ourselves on delivering comprehensive solutions that protect critical infrastructure while ensuring occupant comfort and safety. Our track record includes landmark projects across healthcare, education, and commercial sectors, reflecting our position as the industry's premier partner for seismic and vibration control.
Services
Seismic Restraint Systems
Vibration Isolation
Noise Control
Flexible Connections
Design Engineering
Details
- Year established: 1973
Highlights and features
- Over 50 years of specialized seismic engineering experience
- In-house engineering team with OSHPD-approved seismic designs
- Exclusive distributor for leading vibration control brands
- State-of-the-art 40,000 sq ft fabrication facility
- Preferred vendor for California healthcare seismic compliance
Associations and certifications
- OSHPD
Services
Seismic Restraint Systems
Our seismic restraint systems protect building infrastructure during earthquakes. We design and install code-compliant bracing for mechanical, electrical, plumbing, and fire protection systems. With over 50 years of experience, we provide solutions for new construction and retrofit projects across California, Nevada, and Hawaii.
Vibration Isolation
Our vibration isolation systems reduce equipment vibration transmission by up to 99.99%. We offer neoprene mounts, spring isolators, and air springs for HVAC and industrial equipment. Our engineers optimize isolation efficiency based on equipment frequency and structural characteristics to ensure occupant comfort.
Noise Control
We implement comprehensive noise control solutions including floating floors, isolated walls, and suspended ceilings. Our systems prevent sound transmission between sensitive spaces while maintaining structural integrity. Applications include mechanical rooms, healthcare facilities, and entertainment venues requiring acoustic isolation.
Flexible Connections
Our flexible connection systems accommodate thermal expansion and seismic movement in piping systems. We provide expansion joints, loops, and compensators that prevent pipe failures from temperature changes or earthquake motion. Solutions meet ASME B31.1 code requirements for safety and durability.
Design Engineering
AJ Engineering provides specialized seismic design services including thermal stress analysis, riser design, and 3D brace coordination. Our team creates certified seismic layouts and steel support systems that integrate with building infrastructure while ensuring compliance with current building codes.
Questions
What areas do you serve?
We serve California, Nevada, and Hawaii with engineering support and product distribution through our offices in Placentia, San Diego, San Francisco, and Sacramento.
What industries do you work with?
We specialize in healthcare facilities, commercial buildings, and industrial facilities requiring seismic protection for mechanical, electrical, plumbing, and fire protection systems.
Do you offer engineering services?
Yes, through our sister company AJ Engineering, we provide seismic design, thermal stress analysis, and 3D coordination services for complete system integration.
Are your products code-compliant?
All our seismic restraint systems meet current building codes and we maintain OSHPD approval for healthcare facility applications in California.
How do you handle large projects?
We have a 40,000 sq ft fabrication facility and experienced project teams to manage complex installations, including multi-story buildings and critical infrastructure facilities.
What product brands do you carry?
We distribute products from Mason Industries, Mercer Rubber Co., Metal-Fab Inc., Nexus Valve, and Rovanco Piping Systems for comprehensive system solutions.
