Maintenance & Service Plans
D&K's Preferred Service Plans keep your HVAC system running at peak efficiency year-round. Members get priority emergency response, discounted repairs, and the peace of mind that comes from professional preventative care.
Maintenance & Service Plans for both Residential and Commercial Clientele
Residential Service Plan
What's included: Two planned maintenance visits per year (one each heating and cooling season), priority emergency response, and 15% discount on all labor and parts.
Planned Maintenance — What We Inspect
Each visit includes a thorough inspection and tune-up. No repairs are made without your approval.
Electrical & Mechanical systems
Voltage and amperage checks, Electrical connections, Contactors and relays, Fan limit switch, Blower assembly and motors, Pulleys and belts,
Refrigeration & Cooling systems check
Refrigerant level check, Indoor and condenser coils, Condensate drain and pump, Suction and discharge pressures, Check for visible refrigerant leaks
Heating Components systems check
Heat exchanger inspection, Burner inspection and cleaning, Flue and venting check, Thermostat calibration, Filter inspection and replacement
Member Benefits
- Priority dispatch — service plan members are responded to first
- 15% discount on all repair labor and parts
- Reduced trip/diagnostic charge — just $90 for members
- No repairs made without your explicit approval
Commercial Service Plan
What's included: Four quarterly planned maintenance visits per year, priority emergency response, discounts on all repairs, and annual chemical cleaning of evaporator and condensing coils.
Commercial Quarterly Inspection Checklist
- Wiring connections and contactors
- Volt-amp readings on compressors and fans
- Filter and belt changes
- Crankcase heater check
- High limits and safety controls
- Heat exchanger and flue ways
- Condensate pan, drain, and pump
- Lubricate blower and condenser fans
- Evaporator and condenser coil inspection
- Temperature differential checks
- Oil level inspection
- Visual refrigerant leak check
- Suction and discharge pressures
- Refrigerant superheat and subcooling
- Draft fan for dirt and rust
- Annual chemical coil cleaning (included)
All commercial buildings have unique requirements. D&K will work with you to build a customized maintenance plan that fits your system type, facility size, and operational schedule.

