Service Contracts



Preventative maintenance for heating, cooling, or plumbing systems is the best way to maximize efficiency, lengthen the lifespan of the equipment, and save money. Maintain your heating and cooling units in your home or business on a scheduled basis with our 12-point check twice a year. This service ensures that your filter, Freon levels, blower, and coil are working at maximum efficiency. Our professional check takes about one hour per system to complete and can help save you money in the long run.


Our 12-Point Check includes inspections of:

  • Coil & clean if required
  • Wiring & Disconnects
  • Refrigerant Charge
  • Condensate Line
  • Thermostat
  • Voltage
  • Air Filter
  • Compressor Contacts
  • Belts & Drives
  • Clean & Adjust Controls
  • Lubricate Moving Parts
  • Blower Assembly




Call us before minor repairs turn into major expenses.

Count on top-quality plumbing, heating, and air conditioning services from N.E. “Bob” Waltz Plumbing & Heating, Inc. in Frederick, Maryland.