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United Mechanical Contractors

Southern California's Premier HVAC & Mechanical Contractor

Our company is a union-affiliated general contractor deeply embedded in the heart of Southern California. Our specialization is in delivering cutting-edge Heating, Ventilating, and Air Conditioning (HVAC) solutions tailored to diverse requirements.

Our portfolio boasts significant partnerships with esteemed institutions and public works departments such as the Los Angeles Community College District (LACCD), Simi Valley Unified School District (SVUSD), Los Angeles International Airport (LAX), UCLA Santa Monica Medical Center, Long Beach Water, and the Los Angeles County Office of Education, among others.

Furthermore, we have extended our footprint into collaborations with notable entities like the DWP, Port of LA, Port of Long Beach, JPL Jet Propulsion Laboratory, and Baxter Laboratories. Our association with renowned general contractors is extensive, including but not limited to alliances with Kiewit, Walsh, Webcor, Obayashi, Lyles, J.F. Shea, PCL, Shimmick Construction, J.R. Filanc, Balfour Beatty, Cushman Contracting Co, GSE Construction Co, and Griffith Company.

From academic institutions and transportation hubs to healthcare units, corporate establishments, and water districts, our unwavering commitment to quality, efficiency, and innovation has cemented our position as the leading HVAC solution provider in Southern California.

Areas Served

  • Los Angeles County
  • Ventura County
  • Santa Barbara
  • Riverside
  • Orange County
  • Surrounding Areas

License Info

CA License #759496.

  • B (General)
  • C-20 (HVAC)

DIR Registration #

1000004362

Small Business Certs

We are SBE and SBE micro certified.

  • DGS #1048929
  • TheNetwork #17383
  • NETConnect #173993

Bond Rate

Our current bond rate:

  • 1.44% for the first $500,000
  • .87% for the next $2,000,000
  • .69% for the next $2,500,000
  • .63% for the next $2,500,000
  • .576% thereafter

We are dedicated to safety!

We hold weekly safety meetings and provide JHAs on every job, with clear planning and a focus on employee and public health. Our current EMR is 1.07.

UMC safety team on site

Performance and Safety

We strive to complete tasks ahead of schedule while maintaining a safe environment for workers and the public, backed by weekly safety meetings and a Job Hazard Analysis on every job.

Scheduling

We schedule our projects to maximize our efficiency and minimize conflict.

Quality

We never sacrifice when it comes to quality.

Communication

We are always available. Phone, email, or even text message!

Proudly Union

SMART Local Union 105 Los Angeles (Sheet Metal Workers)

SMART Local Union 104 Ventura County

Painters and Allied Trades Local Union 36 Los Angeles

Team Members

We believe jobs are best completed as a team. Every person involved is considered a team member.

Prime Contractor with B license

  • City of Long Beach - Multi-Service Center Energy Efficiency Upgrade
  • Lawndale ESD - Rogers MS - Central Kitchen HVAC
  • South Orange County CCD - Saddleback College - BGS HVAC Replacement
  • SVUSD - Simi Valley HS - Gymnasium Ductwork Replacement
  • UCLA Santa Monica Medical Center - AHU #7 Replacement
  • LACCD - LATTC - Laurel Hall Air Handler Replacement
  • Long Beach Water Department - Groundwater Treatment Plant HVAC Replacement
  • Palmdale SD - Yellen Learning Center - HVAC Replacements
  • Sulphur Springs USD - Pinetree Community School - HVAC Replacement
  • LA County Office of Education - Education Center Renovation - HVAC, Roofing & Cooling Tower
  • LA Sanitation - Donald C. Tillman WRP - Admin Building HVAC Replacement
  • PYLUSD - Bernardo Yorba MS - Building 500 AC Replacement
  • Las Virgenes USD - Willow Elementary School
  • MVSD - Twin Lakes ES - Kitchen HVAC Replacement
  • Lawndale ESD - Smith ES - HVAC Replacement
  • LACCD - Educational Services Center - Electrical Bus Duct & Humidifier Installation
  • MVSD - HVAC Replacement at Various Sites - Phase 3
  • LACCD - Educational Services Center - Retrocommissioning HVAC
  • LACCD - ELAC Corporate Center - HVAC Mechanical & Electrical Repairs, Floors 1-4
  • LACCD - LAPC - Campus Wide Fire Alarm Upgrades
  • LACCD - LATTC - Replacement of Rooftop HVAC at Redwood Hall
  • LACCD - LAMC - Arts Media and Performance - Receptacles and Railing Project
  • LACCD - ELAC - Repair and Replace Cooling Tower E7
  • LACCD - ELAC Corporate Center - 5th Floor HVAC Replacement
  • SVUSD - District Office AC Equipment Relocation
  • NCTD - Portable AC Units for Signal Houses
  • Mountain View School District - Phased HVAC Replacement at 12 Schools
  • SMMUSD - Franklin ES Room 41 HVAC Replacement
  • Santa Monica Malibu USD - Replace Wall Mount AC Units at Multiple Schools
  • El Monte UHSD - Arroyo HS HVAC Replacement
  • Azusa USD - Charles Lee ES
  • SVUSD - Replacement of AC-4 in Sound Studio Area of District Office
  • SVUSD - Royal HS BLDG 10 Damper
  • SVUSD - Township ES - HVAC Replacement
  • SVUSD - New District Office
  • SVUSD - Royal HS Damper Replacement
  • LACCD - WLAC - Central Plant Upgrades PH2
  • Oxnard Performing Arts Center - HVAC Replacement
  • Arcadia USD - Replace HVAC At All Schools
  • SVUSD - Berylwood ES - HVAC Replacement
  • SVUSD - Garden Grove ES - HVAC Replacement
  • SVUSD - Sycamore ES - HVAC Replacement
  • SVUSD - Justin Early Childhood Development Center - HVAC Replacement
  • Metropolitan State Hospital - 100's Building HVAC Renovation
  • RUSD - Martin Luther King HS Gymnasium HVAC Replacement
  • Moreno Valley City Hall Data Center
  • SVUSD - Township ES and White Oak ES HVAC Replacement Project
  • Antelope Valley College - Math/Engineering Building HVAC
  • SVUSD - Valley View MS - HVAC Replacement PH2
  • Valencia WRP Switchgear HVAC
  • SVUSD - Valley View MS - Room C-23 Rebuild
  • SVUSD - Crestview ES - HVAC Controls Replacement
  • SVUSD - Valley View MS - HVAC Replacement PH1
  • SVUSD - Garden Grove ES - Multi-Zone HVAC Units
  • SVUSD - Katherine ES - Multi-Zone HVAC Units
  • SVUSD - Royal HS - Multi-Zone HVAC Units
  • Santa Clarita Sports Complex (Phase III)
  • Eastside Union SD - Enterprise Elementary School
  • SVUSD - Sycamore Elementary School - Wall Replacement Project
  • Simi Valley Unified School District - Education Services Center
  • SAUSD - Harvey Elementary School
  • Palmdale SD - Joshua Hills Elementary School
  • Santa Monica DMV
  • Santa Clarita Sports Complex (Phase I)
  • Simi RV Storage
  • Universal Hilton
  • City of Beverly Hills Information Technology
  • Simi Valley City Hall
  • UCLA Santa Monica Hospital
  • Thousand Oaks Community Center
  • Thousand Oaks Teen and Senior Center
  • Olympic Pico Project

Sub Contractor with C-20 license

  • Fullerton Road Grade Separation Project
    Shimmick Construction
  • Ventura WRF Digester Improvements
    Cushman Contracting Co
  • Carson Regional Water Recycling Plant - Phase II Expansion
    J.R. Filanc Construction
  • Orange County Region Service Center at Diemer WTP
    RIC
  • Pier B Pump Station Upgrades
    PCL
  • Silver Lake Reservoir Complex Storage Replacement - Phase 2
    Webcor/Obayashi/Lyles
  • Pump Station #2 - City of San Diego
    Steve P. Rados
  • Hyperion Water Reclamation Plant
    J.F. Shea Construction
  • Mission Village DWP-1 Sewer Lift Station
    Blois Construction
  • F.E. Weymouth WTP Chlorination System Upgrades
    J.F. Shea
  • Mission Village Temporary Pumping Plant and Force Main
    Blois
  • LACCD - ELAC Corporate Center - Condenser Unit Replacement
    Axiom Group
  • Highbury Pumping Plant
    Green Building Corp
  • Heart of Los Angeles Performing Arts & Enrichment Center
    Balfour Beatty
  • Oxnard WWTP Emergency Repairs
    GSE Construction Co
  • Los Angeles Times
    Westover Controls
  • City of LA Asphalt Plant No. 1 - Admin Building
    California Coastal Development
  • Los Angeles Asphalt Plant No. 1 - Design Build
    Papich Construction Company, Inc.
  • Metrolink - Maintenance of HVAC at Railroad Crossing Battery and Communication Houses
    Kiewit/Mass Electric
  • Moorpark College - Comm Building Classroom HVAC
    LA Electricom
  • LACCD - Pierce College Performing Arts
    Valle Grande
  • MVSD - Baker ES Bard Units Replacement
    Ampco North
  • Los Alamitos Joint Forces Training Facility - Welding Exhaust Arm
    Stilten
  • Owens Lake - Dust Mitigation Project - LADWP
    OHL / GCE West
  • Harbor View Inn - Santa Barbara
    Sierra Commercial Plumbing
  • LA Reservoir - UV Disinfection Plant - LADWP
    Steve P. Rados
  • Woods Valley Ranch WRF - Phase 2 Expansion
    C.W. Roen Construction Company
  • Wilshire/Vermont Central Plant
    Sierra Commercial Plumbing, Inc.
  • Exide Technologies - Design Build Retrograde
    American Integrated Services, Inc.
  • Newhall ES Auditorium Renovation
    Lundgren Management - Multi-Prime
  • Valley View Community School
    AMG and Associates
  • Weymouth WTP
    Walsh / Archer Western Contractor, LTD
  • LAX Elevator and Escalator Upgrades
    W.E. Oneil
  • Universal Pedestrian Bridge
    Griffith Company
  • Silver Lake Reservoir Complex Storage Replacement - Phase 1
    Webcor/Obayashi/Lyles
  • Long Beach Main Pumping Plant
    Steve P. Rados
  • Saddleback HS
    R.C. Construction Services, Inc.
  • Septage Receiving Facility, Screen & Grit Handling Equipment Improvements - Water Reclamation Plant No. 10 - Coachella Valley Water District
    Stanek Constructors, Inc.
  • Metro Gateway Building Generator Additions and Upgrades
    Global Power Group
  • Pacoima Entrepreneur Center
    AMG & Associates
  • Southern California Edison
    Dumarc
  • LA County MTA - Westside Subway Extension Project - Exploratory Shaft -- DESIGN BUILD
    Innovative Construction Solutions
  • Dendreon Corporation Clean Room
    AES Clean Technology Solutions
  • StemCyte Clean Room
    AES Clean Technology Solutions
  • Port of Los Angeles - Berth 84 Maritime Museum
    Sully-Miller
  • Fullerton Airport Roof Replacement
    Letner Roofing
  • McCollom WTP
    Archer Western Contractors, LTD
  • Tutor Perini Office Addition
    Tutor Perini
  • Kinesiology Building at CSULB Long Beach
    Mackone Development, Inc
  • Robert B. Diemer Water Treatment Plant
    Shimmick / Obayashi Joint Venture
  • El Estero WTP
    Stanek Constructors
  • LAX Terminal 7
    Griffith Company
  • Baxter Laboratories - BAXJECT ISO 9 Clean Room
    Turner / AES Clean Technology Solutions
  • LAX Elevator and Escalator Upgrades (2012)
    W.E. Oneil
  • Lancaster Water Reclamation Plant Expansion Stage 5 - Phase 1
    Taisei / T & K Joint Venture
  • Whittier Narrows Water Reclamation Plant
    Stanek Constructors
  • Medea Creek Middle School
    Barnhart / Balfour Beatty
  • JPL Jet Propulsion Laboratory
    Sierra Commercial Plumbing
  • Berylwood Elementary
    SBS Corporation
  • CSU Channel Islands - Modoc Hall Improvements
    Sierra Commercial Plumbing
  • South Los Angeles Neighborhood City Hall
    CTP Construction
  • Calabasas Gas to Energy Facility
    Hobbs Bannerman
  • Atherwood Elementary School
    LA Contractors
  • Oxnard SD - Frank & Ramona ES Portables
    Ardalan Construction
  • Township Elementary
    LA Contractors
  • Stone Canyon Water Treatment Plant
    Kiewit Pacific
  • Simi Valley Fire Station #41
    Ardalan Construction
  • Alameda Corridor - Brea Canyon Road Separation
    Griffith Company
  • Carson Joint Water Pollution Control Plant
    Tutor Saliba
  • Burbank DWP
    Icon West
  • Westlake High School
    Atkins Construction
  • Los Angeles International Airport - Electrical Power Upgrades at LAX
    Tri technic
  • Northrop Grumman / XonTech Mission Control
    Spectrum Contracting
  • Columbia Analytical
    Spectrum Contracting
  • Planned Parenthood
    Spectrum Contracting
  • Tutor Saliba Office Addition, Sylmar
    Tutor Saliba
  • Levi's Store - Del Amo Mall, Torrance
    JD Goss Construction
  • West Valley Animal Shelter
    Mallcraft
  • United Rentals - Woodinville, Washington
    Cal Building & Maintenance
  • United Rentals - Tacoma, Washington
    Cal Building & Maintenance
  • United Rentals - Canoga Park, CA
    Cal Building & Maintenance
  • United Rentals - Fullerton, CA
    Cal Building & Maintenance
  • United Rentals - Long Beach, CA
    Cal Building & Maintenance
  • United Rentals - Gardena, CA
    Cal Building & Maintenance
  • United Rentals - Downey, CA
    Cal Building & Maintenance
  • Robinsons / May
    JD Goss Construction
  • Northridge Park Pool and Bath House
    Morillo Construction
  • Tutor Saliba Office Addition - Expansion #5
    Tutor Saliba
  • Marvel Enterprises
    Abadan Construction
  • Tishman Tenant Improvement
    Abadan Construction
  • Simi Tenant Improvement
    Spectrum Contracting
  • Manhattan Beach Tenant Improvement
    Spectrum Contracting
  • Broadway Planned Parenthood
    Spectrum Contracting
  • Colony High School
    Sanders Engineering
  • Palm Springs Airport Baggage Claims
    BE McMurray
  • Palm Springs Airport Security Plaza
    BE McMurray
  • Palm Springs Airport Aviation Facility
    BE McMurray

Over 35 years experience

With over 35 years experience with the Sheet Metal Workers Union our company is well equipped to handle the toughest jobs out there. Here are just some of our capabilities:

  • Design Build
  • Engineering
  • Water Treatment Plants
  • Airports
  • Hospitals
  • Schools
  • Clean Rooms
  • Laboratories
  • Government Buildings
  • HAZMAT
  • Abatement
  • BIM

Contact Us

We'd love to hear from you!