Service, Repair and Installation HVAC, Furnaces, Heat Pumps for over 34 years.


  • 10% off first service for new customers.
  • Up to $1,250 Pepco rebate plus $1,000 instant rebate on replacement of your air conditioning system.
  • Thermostat Replacement
  • Humidifier Installation

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  • We offer FREE ESTIMATES for new installation or replacement of your Heating and Air Conditioning/HVAC systems.
  • We offer quality service, repair, installation and replacement of your Heating and Air Conditioning/HVAC system at competitive rates.
  • We will offer you options and pricing PRIOR to any additional work being done.
  • We sell, service, repair, install and replace most makes and models of Air Conditioning and Heating Systems for both residential and commercial.


Located in Montgomery County Maryland, Shemtov Systems company offers Heating, HVAC & Cooling systems and services to residential and commercial property owners in Montgomery County, Maryland.

Shemtov Systems is a family owned and operated business. Our master mechanics have been installing and servicing HVAC – Heating, Air conditioning and Cooling systems for over 34 years. We supply reliable commercial and residential HVAC/Heating/Furnace, Cooling services and repairs in Montgomery County Maryland and the Washington DC area.

We offer sales and installation of new HVAC units for residential and commercial property, repair services for heating and air conditioning units, and design of complete duct systems. If you have an emergency with your AC service we can be there quickly and get you up and running on short notice.

We are fully licensed and insured to service or install your HVAC unit or heating,furnace, cooling in Montgomery County Maryland and our workers are covered by workman’s compensation.

Air Duct Leakage Could Be Harming Your Heating & A/C Unit Systems

Leaks in forced air duct systems are now recognized as a major source of energy waste in both new and existing houses. Studies indicate that duct leakage can account for as much as 25% of total house energy loss, and in many cases has a greater impact on energy use than air infiltration through the building shell. Learn more about Air Duct Pressure Testing.
Did you know that leaks in the supply duct work cause expensive conditioned air to be dumped into the attic, crawlspace or garage instead of into the house? Read more about how you can protect your home from potentially dangerous indoor air quality problems.

You are welcome to our HVAC Blog.

We Service

The following Montgomery County MD areas for HVAC, Heating & Air Conditioning Services for both Commercial & Residential:

check-li Rockville MD

check-li Bethesda

check-li Chevy Chase

check-li Silver Spring

check-li Potomac

check-li Olney

check-li Gaithersburg

check-li Germantown

check-li Washington DC

check-li Kemp Mill Maryland


air conditioning repair maryland

Our MASTER mechanics are personally involved in every installation and service call for HVAC & Heating & Refrigeration, and will personally guarantee our work.


Reliable HVAC, Heating, Refrigeration Repair Services Serving Bethesda, Chevy Chase, Potomac, Gaithersburg, Kensington, Germantown, Rockville, Silver Spring and other areas of Montgomery County Maryland

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