Business Details
Expert HVAC Contractors Serving Southern California
United Mechanical Contractors is a union-affiliated general contractor with over 35 years of experience delivering cutting-edge HVAC solutions across Southern California. Our expertise spans design-build engineering, clean rooms, and BIM services for critical infrastructure including schools, hospitals, airports, and government facilities. Backed by certifications like ISO 9001 and SBE Micro, we prioritize safety with a 0.84 EMR rating while maintaining partnerships with leading institutions like LACCD, UCLA Santa Monica Hospital, and Kiewit. Our commitment to quality, efficiency, and innovation has solidified our reputation as a trusted HVAC leader. 
Services
HVAC Installation
Design-Build Engineering
Clean Rooms
BIM Services
HAZMAT Abatement
Highlights and features
- We offer 35+ years of union-affiliated HVAC expertise.
- Our team specializes in ISO-certified clean room systems.
- We maintain a 0.84 EMR safety rating for project reliability.
- Our partnerships include Kiewit, Walsh, and LACCD institutions.
- We provide BIM-driven design-build engineering solutions.
Associations and certifications
- ISO 9001
- SBE Micro
- CA License #759496 B (General) C-20 (HVAC)
Services
HVAC Installation
We design and install custom HVAC systems for commercial and institutional buildings. Our solutions prioritize energy efficiency, compliance, and long-term reliability. Clients benefit from our union-trained technicians and partnerships with leading manufacturers.
Design-Build Engineering
Our design-build approach integrates engineering and construction for seamless project delivery. We specialize in complex systems for water treatment plants, airports, and healthcare facilities. This method reduces costs and timelines while ensuring technical precision.
Clean Rooms
We construct ISO-certified clean rooms for laboratories and pharmaceutical facilities. Our systems maintain strict air quality standards through advanced filtration and pressure control. Clients trust us for compliance with federal regulations and industry best practices.
BIM Services
Our BIM services optimize project planning with 3D modeling and clash detection. This technology enhances collaboration and reduces errors during construction. We apply BIM to large-scale HVAC projects for improved accuracy and cost management.
HAZMAT Abatement
We safely remove and contain hazardous materials during HVAC upgrades. Our certified technicians follow strict protocols for asbestos, lead, and chemical abatement. This service ensures regulatory compliance and worker safety on complex projects.
Questions
What HVAC services do you specialize in?
We specialize in commercial HVAC installation, design-build engineering, clean rooms, BIM services, and HAZMAT abatement for institutional and government projects.
Which areas do you serve?
We serve Los Angeles County, Ventura County, Santa Barbara, Riverside, Orange County, and surrounding regions in Southern California.
Are you ISO certified?
Yes, we hold ISO 9001 certification for clean room systems and maintain SBE Micro business certifications.
What safety standards do you follow?
We maintain a 0.84 EMR rating through weekly safety meetings, JHAs, and compliance with OSHA regulations for worker and public health.
What types of projects do you handle?
We handle HVAC projects for schools, hospitals, airports, water treatment plants, laboratories, and government buildings, including design-build and retrofit solutions.
