Picture of John Tezel John Tezel - President
Graduate of University of Texas - 1994
Texas Master Air Conditioning License Number A60230C
United Service Alliance Sales Training - 1995
Mechanical Contractors Association of America
Mechanical contractors of San Antonio- Past President
Picture of Tanya Hall Tonya Hall-Serna - Accountant, Vice President of Finance
Graduated from UTSA in December 2000 with a B.A. in Accounting
Has over 15 years experience in Administration and accounting
Joined the Tezel & Cotter team in 1989
Picture of Tim McBrayer Tim McBrayer - Service Manager
Graduate of University of Houston - 2004
Joined the Tezel & Cotter team in 2006
Picture of William Wilson William Wilson - Project Manager
Journeyman Pipefiter
Over 11 years of Mechanical piping and Welding Experience
UA Certified Welder
UA Certified Foreman
Picture of Albert Torralva Eric Martinez - Estimator
Picture of Mark Hall Mark Hall - Plumbing/Pipefitting Superintendent
Master Plumber License M18837
Certified Backflow Inspector
Refrigerant License
Over 30 years of Plumbing and Pipefitting Experience
Certified Medical Gas
Picture of Alfonzo Marquez Alfonzo Marquez - Sheet Metal Superintendent
Journeyman Sheet Metal Worker
Over 20 years of Sheet Metal and Metal Working Experience
Picture of John Castandeda John Castaneda - Sheet Metal Shop Foreman
Journeyman Sheet Metal Worker
Picture of James VanSant James VanSant - Warehouse Manager
Has over 30 years experience in Warehouse Operations
Joined the Tezel & Cotter team in 1984
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