Find a Contractor Offering Mechanical Acceptance Testing Services

“… California Energy Commission (CEC) expects authorities having jurisdiction (AHJ) to enforce the mechanical systems ATT requirements to all nonresidential permit applications submitted on or after October 1, 2021.” (CEC Public Notice – June 28th, 2021)

As of October 1, 2021, any project requiring a MATT, will need to be completed on an approved database.
The following contractors are registered on an approved database (MechCheck) and offering Mechanical Acceptance Testing Services.
Company NameStreet AddressCityZip CodePhone NumberWebsiteEmail
Frank M Booth4220 Douglas BlvdGranite Bay916-542-3174916-542-3174www.frankbooth.comrogerk@frankbooth.com
Alpha Air Balancing Agency, Inc.PO Box 3948Carmel93921831-625-8195www.alphairbalancing.com
Freedom Air Balance, Inc.9444 Oasis RoadPinon Hills92372760-885-8898www.Freedomairbalance.com
Pacific Test and Balance, Inc.4771 Mangels BlvdFairfield94534707-696-2444www.pacifictab.com
MESA31945 Las Plumas AveSan Jose95133408-928-3000www.mesa3.comjustin.knepp@mesa3.com
Equal Air Balance Company357 E. Arrow Highway Suite 206San Dimas91773714-637-3500equalairbalance.comerik@equalairbalance.com
ABM Building Solutions LLC3640 Northgate Blvd, Suite 200Sacramento95834916-381-4526abm.comrick.cooke@abm.com
ACCO Engineered Systems PAS888 E. Walnut St.Pasadena91101818-244-6571www.accoes.comaclark@accoes.com
ACCO Engineered Systems SAC9290 Beatty DriveSacramento95826916-520-2100www.accoes.comatiechner@accoes.com
ACCO Engineered Systems SNL1111 Aladdin AveSan Leandro94577510-346-4300www.accoes.com aryman@accoes.com
Air Control Balancing, Inc.2140 North Winery, Suite 103Fresno93703559-454-8000acbfresno.commark@acbfresno.com
Air Systems Inc.940 Remillard CourtSan Jose95122408-693-1507www.airsystemsinc.comnicholasanda@gmail.com
AireMasters12556 McCann DRSanta Fe Springs90708562-944-6302www.AireMasters-ac.comjlundgren@airemasters-ac.com
American Air Balance Co., Inc.4721 E Hunter AveAnaheim92807714-693-3700www.aabccorp.comadmin@aabccorp.com
Anderson Systems75B Robin Hill RdGoleta93117805-683-6133andersys.comovilladsen@andersys.com
Anderson, Rowe & Buckley2833 3rd StreetSan Francisco94107415-282-1625www.arbmechanical.comrbustos@arbmechanical.com
Applied Air Conditioning, Inc4250 Artesia AveFullerton92833714-545-1917applied-air.comckoo@applied-air.com
Associate Mechanical Contractors622 S Vinewood StEscondido92029760-294-3517www.amechinc.comerich@amechinc.com
Associated Air Balance457 E Arrow Hwy Ste DAzusa91702626-915-8117associatedairbalance.comassociatedairbalance@gmail.com
Associated Air Balance and Certification1430 Koll Circle Ste 105San Jose95112408-330-6170aabc-inc.combillharvey@aabc-inc.com
Balance America Inc.1185 Linda Vista Dr Ste BSan Marcos92078760-798-9255www.balanceamericainc.comsocaladmin@cmihvac.com
Bos Sheet Metal Inc3325 52nd AveSacramento95823916-428-1780bossheetmetal.com/mike@bossheetmetal.com
Certified Air Balance Co., Inc.9970 Bell Ranch DriveSanta Fe Springs90670562-941-1200certifiedairbalance.comcertifiedairbalance@gmail.com
Champion Industrial Contractors1420 Coldwell AveModesto95392209-524-6931championindustrial.commattc@championindustrial.com
Circo System Balance4100 Florin Perkins RoadSacramento95826916-889-3714circobalance.comdavelittle@circobalance.com
Circulating Air Inc7337 Varna AveNorth Hollywood93065818-764-0530circulatingair.comdsandvig@circulatingair.com
Couts Heating & Cooling, Inc.1693 Rimpau AveCorona92881951-278-5560couts.comOlivarria@couts.com
Critchfield Mechanical Inc. of Southern California15391 Springdale StreetHuntington Beach92649949-390-2900cmihvac.com/?q=company/critchfield-mechanical-inc-southern-californiadgonzalez@cmihvac.com
Inland Air Balance Inc465 Borrego Ct, Suite CSan Dimas91773909-305-4881www.inlandairbalance.com David@inlandairbalance.com
M2 Mechanical6929 Sunrise Ave, Suite 105-HCitrus Heights95610916-838-9204m2mech.commdelp2323@gmail.com
Marelich Mechanical Co., Inc.24041 Amador St.Hayward94544510-785-5500www.marelich.comm.keeble@marelich.com
McClanahan Inc DBA Hartmanaire12 GardeniaLake Forest92630951-479-6855www.hartmanaire.cominfo@hartmanaire.com
National Air Balance Company, Inc.4171 Business Center DrFremont94538510-623-7000nabco.bizjustin@nabco.biz
O.C. McDonald Co., Inc.1150 W San Carlos StSan Jose95126408-295-2182ocmcdonald.comdpine@ocmcdonald.com
Precision Air Balance Co Inc1240 N Jefferson St Ste HAnaheim92807-1632714-630-3796www.precisionairbalance.com/index.phpkfox@precisionairbalance.com
Silicon Valley Mechanical Inc2115 Ringwood AveSan Jose95131408-943-0380svminc.comsmcclung@svminc.com
Southland Industries - Union City, CA33225 Western Ave.Union City94587510-477-3300southlandind.compphillips@southlandind.com
United Mechanical Inc2161 Oakland RdSan Jose95131408-232-9000umi1.comtvela@umi1.com
University Mechanical & Engineering Contractors, Inc. DBA Spira-Loc1168 Fesler StEl Cajon92020619-956-2500www.umec.comjlaxton@umec.com
Western Allied Corporation12046 E. Florence Ave.Santa Fe Springs90670562-944-6341www.wasocal.com cherrick@wasocal.com
Xcel Mechanical Systems, Inc.1710 W. 130th St.Gardena90249310-660-0090www.xcelmech.comsowechko@xcelmech.com
MBO Inc4830 Viewridge Ave., Suite ASan Diego92123858-688-6040www.mbo1.commailto:dtrobaugh@mbo1.com
Western Allied Mechanical1180 O'Brien AveMenlo Park94020650-326-0750westernallied.commailto:astender@westernallied.com
Emcor Services Mesa Energy Systems2 CromwellIrvine92618714-349-4597www.mesaenergy.com/mailto:jortiz@emcor.net
G&G Air Conditioning inc.311 W Avenue 33Los Angeles90001323-223-3811ggair.comtim@ggair.com
Air Systems Service and Construction10381 Old Placerville RdSacramento95827916-368-0336www.airsystems1.combsink@airsystems1.com
Pan-Pacific Mechanical48363 Fremont Blvd.Fremont94538650-561-8810ppmechanical.commailto:amarks@ppmechanical.com
ACH Mechanical Contractors Inc411 Business Center CourtRedlands92373909-307-2850www.achmechanical.comctalens@achmechanical.com
Air Balance Co., Inc.440 N Barranca AvenueCovina91723626-339-4700www.airbalanceco.comasandoval@airbalanceco.com
Total Air Balance3724 Placer Corporate DrRocklin95765916-408-6868tabco-usa.comjohn@tabco-usa.com
Penn Air Control, Inc.5941 Lakeshore DriveCypress90630714-325-7162www.pennairgroup.comnculley@pennairgroup.com
DKM Heating & Air Conditioning5844 Walnut StreetLoomis95650916-652-4478C2Payne@dkmhvac.com
MTB1318 Ross St, Ste APetaluma94954707-766-9790www.mtb-hvac.commtbbalancing@msn.com
Raglen System Balance898 Maestro, suite #100Reno89511775-747-0100www.raglensystembalance.comkevin@raglensystembalance.com