About LMS

Founded in 1981 by Randy Lange and based on his commitment to integrity, teamwork and professionalism, Lange Mechanical Service, LP (LMS) is your leader in the commercial marketplace for mechanical and building automation system (BAS) services.

Randy was a humble guy full of grit and a “nothing is impossible attitude”. He brought that spirit to his customers and employees every day.

His wife, Jamie, has the same passion for LMS that Randy did. As the owner and now President  Ms. Lange is committed to following the same philosophy that built LMS into a Houston market leader.

LMS’s employees also have the same level of commitment. Many have been with LMS since its founding and are truly part of the company fabric. And Randy’s brother, Al Lange, who has worked in almost every department in the company over the years keeps his brother’s commitment to customer satisfaction.

With a San Jacinto HVAC associates degree and a one-man office in his Garden Oaks, Houston home, Randy started his American dream. His dream has grown into employing dozens of qualified staff and serving hundreds of loyal customers from an impressive facility in the same Garden Oaks location.

As such we differentiate ourselves by:

Through retaining in-house pipe fitting, welding, duct work and BAS installation competencies.

As one of the top performing Johnson Controls Metasys Authorized Building Control Specialists (ABCS) and Card Key Authorized Building Security Specialist (ABSS) contractors in the country.
Service needs from simple building AC problems to complex mechanical and automation system challenges. Our technicians have a combined 187 years of industry service.
For the service and repair of Carrier, Johnson Controls, York, Trane, Lennox and many more OEM equipment types.

Leadership Team

Expanding upon Randy’s vision, drive and understanding that change is inevitable LMS under the guidance of a new leadership team is getting back to the business model that Randy put in place while also advancing into new markets with new innovations.

JAMIE LANGE, OWNER/PRESIDENT
Since 2002 Ms. Lange has been by her husband Randy’s side as he grew Lange Mechanical Services, LP into a must have provider in the services business. While always maintaining company ownership, she was recently asked to take over the role of President. Her focus as it’s always been is to put customers and employees first and continually grow with the market’s needs.

JAMIE LANGE, OWNER/PRESIDENT
Since 2002 Ms. Lange has been by her husband Randy’s side as he grew Lange Mechanical Services, LP into a must have provider in the services business. While always maintaining company ownership, she was recently asked to take over the role of President. Her focus as it’s always been is to put customers and employees first and continually grow with the market’s needs.

Professional Profile

BRUNO RAMOS, VICE PRESIDENT
With 20 years of experience in the HVAC industry and a mechanical engineering degree from the University of Texas in Austin, Bruno Ramos comes to LMS with a focus on growth, leadership, innovation and most importantly customers. Ramos holds his Certified Energy Manager license and is affiliated with the following associations: U.S. Green Building Council, Association of Energy Engineers, American Society of Heating, Refrigeration and Air Conditioning Engineers and many more between.

Community Involvement

Both Jamie and Randy Lange have/had a long-standing commitment to training young talent and providing opportunities for success. Randy made it his mission to mentor those interested in becoming experts in the mechanical services business through personal, hands-on training.As well as supporting a variety of charitable organizations.

In 2020 Jamie is extending this commitment to helping others break into the mechanical services industry by partnering with local school districts and colleges. Lange Mechanical experts will provide classroom and hands-on training to young apprentices who wish to make mechanical services their career.

And with her woman-owned business certification, Jamie is also deeply committed to supporting women in business. Her desire to educate young women on the possibilities of business ownership will expand this year into a company-lead mentoring program whereby students will rotate through various aspects of the business developing key leadership skills.

Christmas Party

ARE YOU READY TO SEE WHAT WE CAN DO FOR YOU?

Let’s Talk!
(713) 688-3861