Hyattsville and Greater Washington Metro Fully Licensed HVAC & Air Conditioning Contractor.




Regular maintenance of your heating and air conditioning equipment is vital to ensuring your system’s longevity. Now EMS customers can enjoy our new maintenance program, Comfort Club. With your Comfort Club membership, you can receive peace of mind knowing that your HVAC system will receive the regularly scheduled maintenance it requires to keep you and your family comfortable for years to come. For one small annual price, Comfort Club members receive:

  • Priority service
  • 24/7 after-hours service
  • 10% discount on parts and labor
  • Routine maintenance (Spring & Fall)


This maintenance will be provided and arranged during our normal business hours (6am-5pm). Non-maintenance service, additional work, repair work will be rendered under a separate ticket. Any parts and labor not covered by normal planned maintenance will be billed at a 10% discount rate (compressor, heat exchanger, and new equipment not applicable).

Maintenance performed includes:

  • Check and clean coils
  • Check contactor, relays, reversing valves and defrost switches
  • Check and oil motors
  • Check refrigerant and coil damage
  • Check line set for leaks
  • Check air filter(s), replace disposables
  • For oil systems: Replace nozzles (Winter Visit)
  • For Oil systems: Change filters (Winter Visit)
  • Inspect Burners (Winter Visit)


Hyattsville and Greater Washington Metro Fully Licensed HVAC & Air Conditioning Contractor.

Experience and Quality

Our Services

Commercial Heating and Air Conditioning

Heating and Air Conditioning for any commercial situation. With EMS you will experience the benefits of a good HVAC system.

Home Building Systems (VRF)

In today's digital world where more and more devices are becoming smart, connected, and automated.  (VRF) systems vary the flow of refrigerant to indoor units based on demand.

Heating and A/C Installation

Your EMS service provider will bring all equipment and supplies necessary to install your new system and thoroughly clean up the job site. 

EMS Comfort Maintenance Plus

Regular maintenance of your heating and a/c equipment is vital to ensuring your system’s longevity. Enjoy our maintenance programs for the peace of mind they deliver. 

New Construction Heating and A/C Install

We back all our new heating and cooling installations with a one-year warranty, and our repairs and tune-up services with a 90-day guarantee.

Heating and A/C Repair Service

Get a fast response from EMS  cooling professionals. EMS is licensed and insured for your peace of mind. Contact us today and one of our representatives will contact you shortly.

We stand behind our work at Ellington Mechanical Services.