Our Commercial HVAC and Refrigeration Contractors


UA Local 342 has multiple divisions of contractors.  Use the links below to view the sector of contractors that you're looking for:


A & B Mechanical Inc
Address:24179 Park Street
Hayward, CA 94544
Phone:(510) 264-5800
Able Engineering Services
Address:868 Folsom Street
San Francisco, CA 94107
Phone:(415) 546-6534
ABM Building Solutions, LLC
Address:6650 Goodyear Road
Benicia, CA 94510
Phone:(707) 746-5693
Absolute Air Inc
Address:210 Talbart Street
Martinez, CA 94553
Phone:(925) 228-8490
Acco Engineered Systems
Address:1133 Aladdin Avenue
San Leandro, CA 94577
Phone:(510) 346-4300
Air Control Incorporated
Address:80 Carolyn Court
Lafayette, CA 94549
Phone:(925) 938-4822
Air Systems Inc
Address:940 Remillard Court
San Jose, CA 95122
Phone:(408) 918-1334
Air Systems Serv & Const (ASSC)
Address:10381 Old Placerville Rd Ste 100
Sacramento, CA 95827
Phone:(916) 368-0336
Allied Htg & Air Cond CO Inc
Address:12 Deluca Place
San Rafael, CA 94901
Phone:(415) 459-5232
American Air Conditioning
Address:2799 Miller St
San Leandro, CA 94577
Phone:(510) 351-7578
American Air Systems Inc
Address:1460 Howard Avenue
San Carlos, CA 94070
Phone:(650) 591-8138
Automated Solutions Group
Address:1498 Seareel Ln
San Jose, CA 95131
Phone:(408) 435-5518
Bay City Mechanical Inc
Address:4124 Lakeside Dr
Richmond, CA 94806
Phone:(510) 233-7000
Bay Point Control
Address:799 Thornton Street
San Leandro, CA 94577
Phone:(510) 614-3500
Bel Air Mechanical Inc
Address:1818 Arnold Industrial Place Ste A
Concord, CA 94520
Phone:(925) 609-9655
Bell Products Inc
Address:722 Soscol Avenue
Napa, CA 94559
Phone:(707) 255-1811
Berkeley Plbg & Htg CO Inc
Address:2160 Dwight Way
Berkeley, CA 94704
Phone:(510) 845-8200
Brothers Energy Inc
Address:11576 Manzanita Ln
Dublin, CA 94568
Phone:(925) 787-7480
Carrier Corporation
Address:600 McCormick St. Suite B
San Leandro, CA 94577
Phone:(510) 347-2000
CHM Mechanical Inc
Address:26120 Eden Landing Rd Ste 2
Hayward, CA 94545
Phone:(650) 637-1274
City Mechanical Inc
Address:724 Alfred Noble Drive
Hercules, CA 94547
Phone:(510) 724-9088
Climate Pros LLC
Address:3480 Arden Rd
Hayward, CA 94545
Phone:(510) 784-8990
Climatech Mechanical Services
Address:1200 Krona Ln
Concord, CA 94521
Phone:(925) 771-9697
Cold Air Refrigeration Inc
Address:825 Arnold Dr Ste 110
Martinez, CA 94553
Phone:(925) 685-8890
Comfort Air Mechanical Systems
Address:1742 Clement Avenue
Alameda, CA 94501
Phone:(510) 217-8980
Comfort Dynamics Inc
Address:823 Estabrook St
San Leandro, CA 94577
Phone:(510) 352-8501
Control Air North Inc
Address:30655 San Clemente St
Hayward, CA 94544
Phone:(510) 441-1800
Crown Mechanical Inc
Address:P O Box 11106
Pleasanton, CA 94588
Phone:(925) 551-7686
Daikin Applied
Address:2568 Barrington Court
Hayward, CA 94545
Phone:(510) 786-4161
Dormatech Mechanical Systems
Address:55 Springstowne Center #217
Vallejo, CA 94591
Phone:(707) 653-4344
Dublin Mechanical Contractors
Address:11585 Silvergate Drive
Dublin, CA 94568
Phone:(925) 833-8863
Energy Mechanix Inc
Address:1290 Old County Rd Ste B-2
Belmont, CA 94002
Phone:(650) 595-1662
Address:33333 Western Ave
Union City, CA 94587
Phone:(510) 240-3333
Estes Commercial Refrig Inc
Address:1400 Potrero Avenue
Richmond, CA 94804
Phone:(510) 232-8221
Honeywell International Inc
Address:353-A Vintage Park Drive
Foster City, CA 94404
Phone:(650) 653-1658
Johnson Controls Inc
Address:21270 Cabot Blvd
Hayward, CA 94545
Phone:(510) 780-7790
Key Mechanical
Address:747 Enterprise Court
Livermore, CA 94550
Phone:(925) 294-8111
Livermore Mechanical Inc
Address:2021 Las Positas Ct Ste 137
Livermore, CA 94551
Phone:(925) 292-1604
Marken Mechanical Svcs Inc
Address:5040 Commercial Suite F
Concord, CA 94520
Phone:(925) 681-2797
Matrix HG Inc
Address:115 Mason Circle Ste B
Concord, CA 94520
Phone:(925) 459-9200
Mechanical Services LLC
Address:6950 Preston Ave
Livermore, CA 94551
Phone:(925) 273-9170
Mesa Energy Systems Inc
Address:24051 Amador St
Hayward, CA 94544
Phone:(510) 670-1690
Omni Mechanical Solutions
Address:1452 N Vasco Rd
Livermore, CA 94551
Phone:(209) 791-6664
Pacific Coast Trane
Address:310 Soquel Way
Sunnyvale, CA 94085
Phone:(408) 481-3712
Prime Mechanical
Address:264 Wright Brothers Ave
Livermore, CA 94551
Phone:(877) 635-4328
Refrigeration Solutions Inc (R.S.I.)
Address:4119 S Market Ct Ste A
Sacramento, CA 95834
Phone:(916) 371-7494
Site Logix
Address:1512 Silica Avenue
Sacramento, CA 95815
Phone:(916) 570-1046
Southland Industries
Address:7390 Lincoln Way
Garden Grove, CA 92841
Phone:(714) 230-7172
Sunbelt Controls
Address:1133 Aladdin Avenue
San Leandro, CA 94577
Phone:(650) 642-5921
Superior Mechanical Svcs Inc
Address:347 Wright Brothers Ave
Livermore, CA 94551
Phone:(510) 278-4900
Temperature Technology Inc
Address:12201 Santa Teresa Dr
San Ramon, CA 94583
Phone:(925) 766-0589
Therma Corporation
Address:1601 Las Plumas Ave
San Jose, CA 95133
Phone:(408) 347-3400
Thermotek Services Inc
Address:1452 N Vaso Rd Ste 294
Livermore, CA 94551
Phone:(925) 334-7111
Vaz Air
Address:33850 S Bird Rd
Tracy, CA 95304
Phone:(925) 250-0198
Western Allied Mechanical
Address:1180 O'Brien Dr
Menlo Park, CA 94025
Phone:(650) 326-0750
Your Warm Friend Inc (Atlas)
Address:1451 32nd Street
Oakland, CA 94608
Phone:(510) 893-1343