At Mosby Mechanical Co., Inc., It is our goal that our employees have a safe, productive and enjoyable experience with us. A Safe Work Practice Manual has been prepared and provided for you to aid in accident and injury prevention, and to save lives.

hvac construction

Mosby Mechanical is experienced in all facets of the Commercial HVAC industry. Mosby works in Schools, Jails, Hospitals and Industrial settings. Mosby has the ability to design, build, and install all types of HVAC systems, from Chilled Water & Heating Water piping systems to Variable refrigerant Flow (VRF) systems. Mosby has a complete drafting department with Building Information Modeling (BIM) capabilities, producing fully coordinated shop drawings with all trades. These shop drawings are used by the inhouse sheet metal fabrication shop, which is capable of producing any size rectangular duct fully assembled, cleaned, all openings covered and shipped to the jobsite ready to hang. Mosby prides itself on having the knowledge and expertise to handle all of your HVAC Construction needs.

commercial, institutional and industrial plumbing.

Mosby Mechanical has served Texas with commercial, institutional and industrial plumbing since 1974.  Our top priority is commitment to quality, to guarantee your satisfaction.  Mosby is a team consisting of diligent workmanship, professionalism, ethical and courteous service ensuring we get the job done with precision and on time.  We have a prefabrication shop capable of assembling piping, hangers, and equipment.  No project is too small or too large. We offer Commercial, Institutional and Industrial Services including but not limited to the following:

New Construction


Design Build

BIM and 3D Modeling

Emergency Repairs

Video Inspection

Sanitary Sewer Systems

Storm Sewer Systems

Acid Waste Systems

Domestic Water Systems

Medical Gas Systems

Process Piping Systems

Food Grade Process Piping Systems

Natural Gas Systems

Compressed Air Systems

Chilled and Heating Water Systems

Steam and Steam Condensate Systems