About Us
Founded in 1981 by Randy Lange, Lange Mechanical Service, L.P., has been a beacon of integrity, teamwork, and professionalism in the commercial mechanical and building automation system (BAS) services market. Randy’s unwavering spirit and “nothing is impossible” attitude defined the company’s ethos, a legacy his wife, Jamie Lange, continued for 17 years.
Since September 2023, Jonathan Cramer has taken charge as Owner/President, injecting fresh enthusiasm into Lange Mechanical Service, L.P. Committed to upholding Randy’s legacy, Jonathan aims to sustain the company’s status as the foremost Commercial HVAC provider in Greater Houston. Focused on excellence and customer satisfaction, he anticipates guiding Lange Mechanical Service, L.P., to new heights in the HVAC industry, ensuring continued success and top-notch solutions for clients in the Greater Houston area.