United Mechanical Contractors
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), and UCLA Santa Monica Hospital, 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, Obayashi, Lyles, Shimmick Construction, 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 have earned a .84 EMR by holding weekly safety meetings
and providing JHAs with clear planning and focus on employee and public health.

Performance and Safety
We strive to complete tasks ahead of schedule while maintaining a safe environment for workers and the public. We are proud of our .84 EMR!
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
- LACCD - LATTC - Replacement of Rooftop HVAC at Redwood Hall
- LACCD - LAMC - Arts Media and Performance - Receptacles and Railing Project
- SVUSD - District Office AC Equipment Relocation
- NCTD - Portable AC Units for Signal Houses
- LACCD - LAPC - Campus Wide Fire Alarm Upgrades
- LACCD - Educational Services Center - Retrocommissioning HVAC
- LACCD - ELAC - Repair and Replace Cooling Tower E7
- LACCD - ELAC Corporate Center - 5th Floor HVAC Replacement
- SMMUSD - Franklin ES Room 41 HVAC Replacement
- MVSD - Baker ES Bard Units Replacement
- Santa Monica Malibu USD - Replace Wall Mount AC Units at Multiple Schools
- SVUSD - Replacement of AC-4 in Sound Studio Area of District Office
- Azusa USD - Charles Lee ES
- Silverlake Reservoir Complex Storage Replacement PH2
- Mountain View School District - Phased HVAC Replacement at 12 Schools
- SVUSD - Royal HS BLDG 10 Damper
- El Monte UHSD - Arroyo HS HVAC Replacement
- SVUSD - Royal HS Damper Replacement
- SVUSD - New District Office
- SVUSD - Township ES - HVAC Replacement
- SVUSD - Sycamore ES - HVAC Replacement
- SVUSD - Garden Grove ES - HVAC Replacement
- SVUSD - Justin Early Childhood Development Center - HVAC Replacement
- SVUSD - Berylwood ES - HVAC Replacement
- Arcadia USD - Replace HVAC At All Schools
- Oxnard Performing Arts Center - HVAC Replacement
- Moreno Valley City Hall Data Center
- Metropolitan State Hospital - 100's Building HVAC Renovation
- Martin Luther King HS Gymnasium HVAC Replacement
- Antelope Valley College - Math/Engineering Building HVAC
- Valencia WRP Switchgear HVAC
- SVUSD - Township ES and White Oak ES HVAC Replacement Project
- SVUSD - Valley View ES HVAC Replacement PH2
- LACCD - WLAC - Central Plant Upgrades PH2
- Lancaster USD - Enterprise Elementary School
- Santa Clarita Sports Complex (Phase III)
- Simi Valley Unified School District - Education Services Center
- RUSD - Harvey Elementary School
- Palmdale USD - Joshua Hills Elementary School
- SVUSD - Valley View MS - HVAC Replacement PH1
- SVUSD - Sycamore Elementary School - Wall Replacement Project
- Santa Monica DMV
- City of Beverly Hills Information Technology
- Santa Clarita Sports Complex (Phase I)
- Universal Hilton
- UCLA Santa Monica Hospital
- Thousand Oaks Teen and Senior Center
- Thousand Oaks Community Center
- Medea Creek Middle School
- Simi Valley City Hall
- Olympic Pico Project
- LACCD - LATTC - Replacement of Rooftop HVAC at Redwood Hall
- LACCD - LAMC - Arts Media and Performance - Receptacles and Railing Project
- SVUSD - District Office AC Equipment Relocation
- NCTD - Portable AC Units for Signal Houses
- LACCD - LAPC - Campus Wide Fire Alarm Upgrades
- LACCD - Educational Services Center - Retrocommissioning HVAC
- LACCD - ELAC - Repair and Replace Cooling Tower E7
- LACCD - ELAC Corporate Center - 5th Floor HVAC Replacement
- SMMUSD - Franklin ES Room 41 HVAC Replacement
- MVSD - Baker ES Bard Units Replacement
- Santa Monica Malibu USD - Replace Wall Mount AC Units at Multiple Schools
- SVUSD - Replacement of AC-4 in Sound Studio Area of District Office
- Azusa USD - Charles Lee ES
- Silverlake Reservoir Complex Storage Replacement PH2
- Mountain View School District - Phased HVAC Replacement at 12 Schools
- SVUSD - Royal HS BLDG 10 Damper
- El Monte UHSD - Arroyo HS HVAC Replacement
- SVUSD - Royal HS Damper Replacement
- SVUSD - New District Office
- SVUSD - Township ES - HVAC Replacement
- SVUSD - Sycamore ES - HVAC Replacement
- SVUSD - Garden Grove ES - HVAC Replacement
- SVUSD - Justin Early Childhood Development Center - HVAC Replacement
- SVUSD - Berylwood ES - HVAC Replacement
- Arcadia USD - Replace HVAC At All Schools
- Oxnard Performing Arts Center - HVAC Replacement
- Moreno Valley City Hall Data Center
- Metropolitan State Hospital - 100's Building HVAC Renovation
- Martin Luther King HS Gymnasium HVAC Replacement
- Antelope Valley College - Math/Engineering Building HVAC
- Valencia WRP Switchgear HVAC
- SVUSD - Township ES and White Oak ES HVAC Replacement Project
- SVUSD - Valley View ES HVAC Replacement PH2
- LACCD - WLAC - Central Plant Upgrades PH2
- Lancaster USD - Enterprise Elementary School
- Santa Clarita Sports Complex (Phase III)
- Simi Valley Unified School District - Education Services Center
- RUSD - Harvey Elementary School
- Palmdale USD - Joshua Hills Elementary School
- SVUSD - Valley View MS - HVAC Replacement PH1
- SVUSD - Sycamore Elementary School - Wall Replacement Project
- Santa Monica DMV
- City of Beverly Hills Information Technology
- Santa Clarita Sports Complex (Phase I)
- Universal Hilton
- UCLA Santa Monica Hospital
- Thousand Oaks Teen and Senior Center
- Thousand Oaks Community Center
- Medea Creek Middle School
- Simi Valley City Hall
- Olympic Pico Project
Sub Contractor with C-20 license
- Fullerton Road Grade Separation Project
Shimmick Construction - Ventura WRF Digester Improvements
Cushman Contracting Co - Oxnard WWTP Emergency Repairs
GSE Construction Co - Mission Village Temporary Pumping Plant and Force Main
Blois - F.E. Weymouth WTP Chlorination System Upgrades
J.F. Shea - Moorpark College - Comm Building Classroom HVAC
LA Electricom - Highbury Pumping Plant
Green Building Corp - LACCD - Pierce College Performing Arts
Valle Grande - Los Alamitos Joint Forces Training Facility - Welding Exhaust Arm
Stilten - Orange County Region Service Center at Diemer WTP
RIC - Pier B Pump Station Upgrades
PCL - Pump Station #2 - City of San Diego
Steve P. Rados - Owen's 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 - Metrolink - Maintenance of HVAC at Railroad Crossing Battery and Communication
Houses
Kiewit/Mass Electric - Woods Valley Ranch WRF - Phase 2 Expansion
C.W. Roen Construction Company - Los Angeles Asphalt Plant No. 1 - Design Build
Papich Construction Company, Inc. - 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 - Dendreon Corporation Clean Room
AES Clean Technology Solutions - StemCyte Clean Room
AES Clean Technology Solutions - Saddleback HS
R.C. Construction Services, Inc. - Universal Pedestrian Bridge
Griffith Company - 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 - Silverlake Reservoir Complex Storage Replacement Project
Webcor/Obayashi/Lyles - Long Beach Main Pumping Plant
Steve P. Rados - Pacoima Entrepreneur Center
AMG & Associates - Weymouth WTP
Walsh / Archer Western Contractor, LTD - Port of Los Angeles - Berth 84 Maritime Museum
Sully -Miller - LA County MTA - Westside Subway Extension Project - Exploratory Shaft -- DESIGN
BUILD
Innovative Construction Solutions - Tutor Perini Office Addition
Tutor Perini - LAX Terminal 7
Griffith Company - LAX Elevator and Escalator Upgrades
W.E. Oneil - El Estero WTP
Stanek Constructors - Lancaster Water Reclamation Plant Expansion Stage 5 - Phase 1
Taisei / T & K Joint Venture - Robert B. Diemer Water Treatment Plant
Shimmick / Obayashi Joint Venture - LAX Elevator and Escalator Upgrades (2012)
W.E. Oneil - McCollom WTP
Archer Western Contractors, LTD - Baxter Laboratories - BAXJECT ISO 9 Clean Room
Turner / AES Clean Technology Solutions - Kinesiology Building at CSULB Long Beach
Mackone Development, Inc - JPL Jet Propulsion Laboratory
Sierra Commercial Plumbing - Calabasas Gas to Energy Facility
Hobbs Bannerman - South Los Angeles Neighborhood City Hall
CTP Construction - Atherwood Elementary School
LA Contractors - Whittier Narrows Water Reclamation Plant
Stanek Constructors - Township Elementary
LA Contractors - Berylwood Elementary
SBS Corporation - 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 - Stone Canyon Water Treatment Plant
Keiwit Pacific - 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 - Alameda Corridor - Brea Canyon Road Separation
Griffith Company - Simi Valley Fire Station #41
Ardalan Construction - Burbank DWP
Icon West - Carson Joint Water Pollution Control Plant
Tutor Saliba - Northridge Park Pool and Bath House
Morillo Construction - Westlake High School
David Atkin 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 - Fullerton Road Grade Separation Project
Shimmick Construction - Ventura WRF Digester Improvements
Cushman Contracting Co - Oxnard WWTP Emergency Repairs
GSE Construction Co - Mission Village Temporary Pumping Plant and Force Main
Blois - F.E. Weymouth WTP Chlorination System Upgrades
J.F. Shea - Moorpark College - Comm Building Classroom HVAC
LA Electricom - Highbury Pumping Plant
Green Building Corp - LACCD - Pierce College Performing Arts
Valle Grande - Los Alamitos Joint Forces Training Facility - Welding Exhaust Arm
Stilten - Orange County Region Service Center at Diemer WTP
RIC - Pier B Pump Station Upgrades
PCL - Pump Station #2 - City of San Diego
Steve P. Rados - Owen's 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 - Metrolink - Maintenance of HVAC at Railroad Crossing Battery and Communication
Houses
Kiewit/Mass Electric - Woods Valley Ranch WRF - Phase 2 Expansion
C.W. Roen Construction Company - Los Angeles Asphalt Plant No. 1 - Design Build
Papich Construction Company, Inc. - 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 - Dendreon Corporation Clean Room
AES Clean Technology Solutions - StemCyte Clean Room
AES Clean Technology Solutions - Saddleback HS
R.C. Construction Services, Inc. - Universal Pedestrian Bridge
Griffith Company - 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 - Silverlake Reservoir Complex Storage Replacement Project
Webcor/Obayashi/Lyles - Long Beach Main Pumping Plant
Steve P. Rados - Pacoima Entrepreneur Center
AMG & Associates - Weymouth WTP
Walsh / Archer Western Contractor, LTD - Port of Los Angeles - Berth 84 Maritime Museum
Sully -Miller - LA County MTA - Westside Subway Extension Project - Exploratory Shaft -- DESIGN
BUILD
Innovative Construction Solutions - Tutor Perini Office Addition
Tutor Perini - LAX Terminal 7
Griffith Company - LAX Elevator and Escalator Upgrades
W.E. Oneil - El Estero WTP
Stanek Constructors - Lancaster Water Reclamation Plant Expansion Stage 5 - Phase 1
Taisei / T & K Joint Venture - Robert B. Diemer Water Treatment Plant
Shimmick / Obayashi Joint Venture - LAX Elevator and Escalator Upgrades (2012)
W.E. Oneil - McCollom WTP
Archer Western Contractors, LTD - Baxter Laboratories - BAXJECT ISO 9 Clean Room
Turner / AES Clean Technology Solutions - Kinesiology Building at CSULB Long Beach
Mackone Development, Inc - JPL Jet Propulsion Laboratory
Sierra Commercial Plumbing - Calabasas Gas to Energy Facility
Hobbs Bannerman - South Los Angeles Neighborhood City Hall
CTP Construction - Atherwood Elementary School
LA Contractors - Whittier Narrows Water Reclamation Plant
Stanek Constructors - Township Elementary
LA Contractors - Berylwood Elementary
SBS Corporation - 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 - Stone Canyon Water Treatment Plant
Keiwit Pacific - 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 - Alameda Corridor - Brea Canyon Road Separation
Griffith Company - Simi Valley Fire Station #41
Ardalan Construction - Burbank DWP
Icon West - Carson Joint Water Pollution Control Plant
Tutor Saliba - Northridge Park Pool and Bath House
Morillo Construction - Westlake High School
David Atkin 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
- 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!