Benefits of a Service Contract
Preventative HVAC Maintentance

It's A Smart Investment

  • Because it will run more efficiently and last longer.
  • Because when maintained properly, the average lifespan of an HVAC system is 18 years.
  • Because without maintenance, your energy bills will be higher each month and you could be looking at the high cost of major repair or replacement.


A study by the American Society of Heating, Refrigerating and Air-Conditioning Engineers found that a large central air condition unit with a dirty coil costs an additional $618 for a single cooling season. And if the unit also has a clogged filter, energy costs go up by another $480. In other words, you are paying an extra $1098 in energy bills per season if your HVAC system is not properly maintained.


What To Look For In A Maintenance Agreement

Your HVAC owner’s manual will recommend a service plan and frequency that is optimal for your HVAC system, but in general, you should have your system serviced at least twice a year—in the spring and fall.

Here are some common problems that we check for in our routine HVAC maintenance checks:

  • Condenser Coils
    • They can become clogged by dust, dirt, pollen and other debris. Because of clogging, the condenser coil loses its ability to pull heat from your system. In turn, it causes the compressor to pull higher amps, causing a higher electric bill.
  • Evaporator coils
    • They deliver conditioned air into your home/office. When dirty or clogged, they can block the flow of air. Each evaporator coil is designed for a specific volume of air to ensure adequate operation.
    • Moisture or dripping inside the house can be another symptom of a dirty evaporator coil.
  • Filters
    • Dirty filters can lead to a build-up of dirt and allergens, making the environment unsafe and unhealthy for you, your family & friends and your pets
  • In addition to the items listed above, cleaning your unit, fans & belts, lubrication of parts and valves, and checking operating pressures and temperatures are all part of our standard service plan.

For these reasons preventative HVAC maintenance is a smart investment

Please call us at 410-721-4142

HVAC Maintenance Checklist

Heat pump and geothermal specific

  • Check thermostat settings to ensure the cooling and heating system keeps you comfortable when you are home and saves energy while you are away
  • Tighten all electrical connections and measure voltage and current on motors. Faulty electrical connections can cause unsafe operations of your system and reduce the life of major components
  • Lubricate all moving parts. Parts that lack lubrication cause friction in motors and increase the amount of electricity you use.
  • Check and inspect the condensate drain in your central air conditioner, furnace and/or heat pump (when in cooling mode). A plugged drain can cause water damage in the house and affect indoor humidity levels
  • Check controls of the system to ensure proper and safe operation. Check the starting cycle of the equipment to assure the system starts, operates and shuts off properly.
  • Check blower operation and cleanliness

Cooling specific

  • Determine if we need to clean evaporator and condenser coils if. Dirty coils reduce the system’s ability to cool your home and cause the system to run longer, increasing energy costs and reduce the life of the equipment
  • Check your system’s refrigerant level and adjust if necessary. Too much or too little refrigerant will make your system less efficient increasing energy costs and reducing the life of the equipment.

Heating specific

  • Check all gas (or oil) connections, gas pressure, burner combustions and heat exchanger. Improperly operating gas (or oil) connections are a fire hazard and can contribute to health problems. A dirty burner or cracked heat exchanger causes improper burner operation. Either can cause the equipment to operate less safely and efficiently.
  • Check chimney for obstructions if applicable

Visit our partners below for more information on the products and services that we use

BAIR Necessities is member of the Geo Exchange Geothermal association
BAIR Necessities is an authorized dealer of Water Furnace Geothermal systems
Trane Heating & Air Conditioning Systems Specialist
BAIR Necessities is a partner with the Winslow geothermal well company
BAIR Necessities is an authorized dealer of Honeywell heating and air conditioning systems
R.E. Michel Company - Air Conditioning, Heating and Refrigeration Equipment, Parts & Supplies
GreenSky Credit - Home Improvement Loans
BAIR Necessities is an authorized dealer of AprilAire air filtration systems, air cleaners, and humidifiers
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