About Us

More than 55 years of experience that you can trust

Renkow Mechanical Inc. is a southern California mechanical engineering, construction and service firm which has been providing the Southern California area with fast track tenant improvement HVAC installations, specialized maintenance programs, service repairs and design build installations for over 13 years.

Our strengths have always been providing our clients with extremely competitive pricing, superior service and the ability to solve our clients problems effectively.

Renkow Mechanical was founded in 1999 in Los Angeles, CA so that we could service our clients as far south as San Diego and as far north and San Francisco. Our desire is to keep your HVAC system running smoothly and efficently

The best of professionals

Michael Renkow



Mike began his career at Renkow Corporation in 1976 after graduating from San Diego State University. He was initially involved in sales and estimating, and later became President of Renkow Corporation. He founded Renell Mechanical in 1987 and held the position of President until 1993 when due to health reasons he needed to close the company. He then worked at Air Mechanical in the sales and project management division. He started Renkow Mechanical in 1999 and since that time he has been responsible for the daily operations of the company. Mike is personally evolved with the project managers, estimating and the accounting departments to insure that these departments provide quality work and client satisfaction.

Gary Friedel

(General Manager)


Gary has been a member of the Sheet Metal Workers Local Union 108/105 since 1982. He started running work by the third year of his apprenticeship and has worked for only 4 contractors over the course of his career. This demonstrates his vast knowledge, strong work ethic and dedication. This is evident by the fact that he has been with Renkow Mechanical since the company's inception in 1999. After 24 years of working in the field he advanced into the office as field superintendent. He is responsible for overseeing and coordinating the workers in the field as well as the operations on the jobsites. Gary also coordinates with our clients, jobsite superintendents and all of their project managers. Gary continues to fulfill and expand upon these duties, and is a key component in Renkow Mechanical's efforts to consistently provide quality work and client satisfaction.

Alicia Zetina

(Office Manager)


Alicia has worked for over 10 years in the field of customer service and accounting both at the City of Los Angeles as well as for an electrical distribution company. Alicia joined Renkow Mechanical in April of 2004 as our office manager. She is responsible for all of the accounts payables and receivables, processing payroll in house, compiling and managing our three individual union reports, dispatching our clients service calls to our service employees, compiling and managing our construction and service job costing and also serves as Mike Renkow's personal assistant. Alicia is a key asset to Renkow Mechanical and our clients often comment how congenial and helpful she is in handling any of their concerns.