Commercial HVAC Services

Commercial Cooling & Heating

For your business or facility in Maryland and beyond

GMS is among the top commercial HVAC companies in Maryland providing a comprehensive range of heating and cooling services to meet all of your commercial AC/heater installation, replacement, repair, and maintenance needs. We believe that properly designed, installed and maintained commercial HVAC systems conserve energy, cut absenteeism and increase productivity.

We have been designing, building and maintaining commercial heating and cooling units across the U.S. since 1998. Whether you’re looking to set up a preventative maintenance contract, replace or supplement an existing commercial air handling system, or would like to find out how to make your HVAC systems more efficient and extend their life, GMS can meet your needs.

Need Installation, Maintenance or Repairs?

Commercial HVAC Services

Commercial HVAC Services

HVAC Design, Installation & Retrofit Services

Commercial air handling units, rooftop packaged units, indoor packaged units, water cooled packaged units


Cooling towers, chillers and split system

Ultra-efficient ductless & ducted, scalable VRF solutions

Renovation and retrofit mechanical systems

HVAC System on Roof
Fan Blades

HVAC unit ultra violet (UV) lighting
Needlepoint Bipolar Ionization (NPBI)
Room Air Purifier


Efficient and scalable cooling solutions
Supplemental computer room air conditioners (CRAC) units
System monitoring and reporting
Temporary cooling units

Chiller and Duct Install

Other HVAC Services

Energy Audits
HVAC equipment assessments and upgrades
Industrial Heater & Chiller Rentals


GMS is a certified Mitsubishi Diamond Commercial Contractor. We can help you solve the toughest HVAC challenges including occupant comfort, design and energy efficiency.

The Time for VRF is Now

The need for energy efficient HVAC systems has never been greater. As efficiency standards continue to become more stringent, VRF provides a solution that leaves conventional HVAC systems struggling to catch up.

All Types of Buildings

The needs of your building dictate the type of HVAC system you can consider. The flexibility and efficiency of VRF make it a great choice for virtually any application.
View Case Studies.

24/7/365 Emergency HVAC Services & Repair

Our experts are standing by to address your Commercial HVAC emergency.


Preventative HVAC Maintenance

Avoid costly repairs with preventative HVAC maintenance. Increase energy efficiency and extend the life of your equipment.

Scroll to Top