Services in Gaithersburg

Air Conditioner Services in Gaithersburg

For over 20 years, Michael Bonsby Heating & Air Conditioning has been the go-to HVAC company for heat pump and air conditioner inspections in Gaithersburg and throughout Montgomery County, MD and Washington, DC.

A properly maintained air conditioner lasts longer, runs more efficiently, and won’t break down as often as an improperly maintained system. When you need to schedule an inspection for cooling or heat pump maintenance in Gaithersburg, you can count on us to get it right the first time.

We also offer Gaithersburg air conditioner maintenance contracts to keep your system running year-round!

If you need to schedule a heat pump or air conditioner inspection in Gaithersburg, MD, don’t wait—call Michael Bonsby Heating & Air Conditioning at 240-342-6910 or click here to contact us online!

Our Air Conditioner Services Include:

Complete Air Conditioner Services

See how you can save on AC services!

Special Offers

Looking to save even more money on your air conditioner or heat pump services? Click here to see current rebates, discounts, and seasonal promotions!

Schedule your air conditioner or heat pump inspection in Gaithersburg today—call Michael Bonsby Heating & Air Conditioning at 240-342-6910 or click here!

Benefits of AC & Heat Pump Maintenance in Gaithersburg

Lower monthly utility bills

Simple procedures like changing an air filter or cleaning a coil allow the heat pump or cooling unit to run much more smoothly. And when your air conditioner runs smoothly, it uses less energy.

Fewer breakdowns

Over 40% of air conditioning breakdowns are caused because of lack of maintenance. Once dirt gets into the system, parts are more likely to rust and get ruined. By checking your entire AC system, you can find problems before they arise.

Schedule AC or heat pump maintenance in Gaithersburg today! Contact us today.


Most companies do not accept an air conditioner repair warranty claim if the unit has issues due to lack of maintenance.

Gaithersburg Heat Pump & Air Conditioning Maintenance Check List

At Michael Bonsby Heating & Air Conditioning, we recognize that everyone’s air conditioner is different and requires different care. That’s why our Gaithersburg air conditioner inspection technicians check out every part of your system! Our air conditioner maintenance process is very thorough and includes:


  • Inspection and replacement of air filters
  • Inspection and lubrication all fans and motor bearings (if needed)
  • Inspection of all belts (and replacement as needed)
  • Inspection and adjustment of valves and dampers
  • Inspection of condition of coils
  • Inspection of supply and return air temperature
  • Inspection of condensate pumps
  • Inspection of refrigerant operating pressures (as required)
  • Inspection and calibration of safety controls and temperature controls


  • Cleaning out drain lines using CO2
  • Cleaning blower assembly of normal dirt


  • Testing overall operation of the air conditioning equipment
  • Testing ampere readings on all motors and compressors
  • Visual inspection of units for refrigerant gas and oil leaks
  • Checking electrical connections and tighten if needed
  • Checking condensate pan
  • Checking thermostat calibration and recalibrate if needed

Do you need to schedule AC or heat pump maintenance in Gaithersburg? Call us today at 240-342-6910 or contact us today!

Our HVAC Manufacturers

Michael Bonsby Heating & Air Conditioning installs and services HVAC equipment from all of the top brands, including but not limited to:

  • Bryant
  • Carrier
  • Mitsubishi
  • Trane
  • York

Why Call Michael Bonsby Heating & Air Conditioning for HVAC Service?

When you need to schedule air conditioning or heat pump maintenance, repair, or installation services, you can rely on our HVAC company in Gaithersburg. At Michael Bonsby Heating & Air Conditioning, homeowners often choose us for the following reasons:

  • Family owned and operated, local HVAC company
  • Guarantee complete customer satisfaction from start to finish
  • Trained, educated, and licensed HVAC technicians
  • Accurate quotes for time, materials, and equipment
  • Fully licensed, bonded and insured
  • Member of Air Conditioning Contractors of America (ACCA)
  • Featured as HVAC provider on “This Old House”
  • 24-hour HVAC service—usually by the next day
  • Special HVAC financing available

If you are interested in learning more about our heating, air conditioning, and indoor air quality systems and services, contact our HVAC company today!

For all your HVAC needs, look to Michael Bonsby Heating & Air Conditioning for comprehensive heating and cooling services—call or click today to learn more about:

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