(708) 499-HEAT (4328) or (708) 423-9580

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Quality Work … Since 1927!
  • “ Thank you and your staff for your help this holiday weekend! …your family installed my dad’s first furnace in 1955 & every one since. What a legacy! ”
    - Dorothy Flynn
  • “ You have an excellent team, Mr. Doornbos. ”
    - Jeanne Sencion
  • “ You and all the people we dealt with were really nice. If we can ever recommend your company to anyone, we certainly will. ”
    - Ray Szarzynski
  • “ I called Doornbos because my cousin said your company is honest and competent. He was right!! ”
    - Karen Darr
  • “ I have been dealing with Doornbos for over fifty years. Thank you. ”
    - Robert Ulatoski
  • “ It’s awfully nice to know there are still people like you out there when you need someone's help. ”
    - Dave Gaichas & Family
  • “ I told all of my co-workers to call Doornbos! They are the best! ”
    -Mr. & Mrs. Yodka
  • “ Doornbos always comes through and will always be my first choice in my heating and air conditioning needs. ”
    - Joe Kriss
  • “ Thank you for keeping the great service your company has been providing its grateful customers for nearly a century. ”
    - Bernice and Jim
  • “ I will always call your company for service. Thank you so much for an excellent job. ”
    - Mrs. W. Gragido
  • “ The service technicians that respond to our needs have been of great support and help to our skilled maintenance staff. ”
    - William Glotz, Maintenance Manager
  • “ I would like to commend Doornbos Heating and Air Conditioning for outstanding service and professional
    workmanship. ”

    - Don Dreher

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Maintenance Plans

To save on utility bills and service calls, we urge you to take a preventive approach to heating and cooling. All of your heating and cooling systems should be included in a regular inspection and maintenance program.

Why should you sign up for a Maintenance Agreement?

  • Keeps operating efficiencies high and utility bills low
  • Helps to extend equipment life
  • Helps to protect against costly failures
  • Provides you the convenience of scheduled service on a regular basis
  • Gives you peace of mind

Explore our Maintenance Plans

Gold Star Service Agreement
Annual Maintenance Agreement-Air Conditioning
Annual Maintenance Agreement-Forced Air Heating
Annual Maintenance Agreement-Boilers

Gold Star Service Agreement: Save up to $500

We will perform up to two seasonal maintenance tune-ups per year on your furnace and/or air conditioner. We will also provide you with guaranteed priority service as an added benefit of the Doornbos Planned Service.

Also, with every consecutive year of membership you will accrue a $50 credit that is good towards future equipment replacement you may need in the next ten years. This credit is transferable to your new home if you move within our service area. Or, use it is as an added benefit when selling your home. Every member in the Doornbos Planned Service will find a new way of saving all year long. Your savings will include:

  • An IMMEDIATE reduction in the annual cost of maintaining and running your equipment.
  • A 10% discount on all parts and labor during the entire term of your agreement.
  • The opportunity to accrue valuable Bonus Dollars toward the purchase of future replacement equipment.

Priority Service & 24 Hour Emergency Service

As a member of the Doornbos Planned Service program you will be guaranteed immediate response to your service needs -no matter the time of day or night. You will also receive preferred scheduled times for your seasonal maintenance tune-ups.

Advantages

  • One service tune-up for your cooling equipment
  • One service tune-up for your heating equipment
  • Knowing your warranty will remain valid with proper maintenance

Annual Maintenance Agreement-Air Conditioning

We start by sending you a fully capable serviceman, not a clean and check technician. Fully capable servicemen have continuing education, a proven track record, and a minimum of 6 years experience. We do not use the less qualified clean and check technicians. Agreement includes the following at minimum:

  • Inspect filter
  • Check blower belt tension and adjust
  • Inspect blower wheel and clean if necessary
  • Inspect blower motor and oil if applicable
  • Inspect condensate drain line and clean appropriately
  • Inspect all wiring and relays
  • Inspect condenser fan motor and blade -oil if applicable
  • Check crankcase heater for proper operation
  • Clean condenser coil and condenser drain openings with water or compressed air
  • Inspect thermostat
  • Cycle air conditioning unit
  • Check for voltage drops across relays
  • Check amperage of blower motor, condenser motor and compressor
  • Install gauges and check for adequate refrigerant charge using superheat or sub-cooling method
  • Check temperature drop across indoor coil to insure proper air flow (cleaning of indoor coil will be an additional charge upon approval)
  • Give a written report and recommendations of system
  • Efficiency testing and adjusting (optional)

Annual Maintenance Agreement-Forced Air Heating

We start by sending you a fully capable serviceman, not a clean and check technician. Fully capable servicemen have continuing education, a proven track record, and a minimum of 6 years experience. We do not use the less qualified clean and check technicians. Agreement includes the following at minimum:

  • Inspect filter
  • Check blower belt tension and adjust
  • Inspect blower wheel and clean if necessary
  • Inspect blower motor and oil if applicable
  • Remove burners, pilot assembly or flame sensor for cleaning
  • Inspect heat exchanger for possible cracks or rusting (excessive flaking or soot cleaned at an additional charge upon approval)
  • Inspect combustion blower motor and oil if applicable
  • Inspect all wiring, relays, integrated control boards
  • Inspect thermostat
  • Cycle heating system. Check for proper exhaust of flue gas
  • Check for proper voltage
  • Check amp draw of blower motor and combustion blower
  • Check for proper burner operation
  • Check flame signal or millivolt reading
  • Combustion analysis and adjustment (optional)
  • Efficiency testing and adjustments (optional)
  • Check temperature rise to insure within manufacturer specifications and proper air flow (cleaning of evaporator coil or adjustments to ductwork will be additional charge upon approval)
  • Check safety circuit to insure safe operation
  • Check near gas line for leaks
  • Give a written report and recommendations of system

Note: Condensing furnaces (90%)-all of the above PLUS:

  • Flush condensate trap
  • Inspect exhaust and intake piping if easily accessible
  • Confirm condensate drainage during operation

Annual Maintenance Agreement-Boilers

We start by sending you a fully capable serviceman, not a clean and check technician. Fully capable servicemen have continuing education, a proven track record, and a minimum of 6 years experience. We do not use the less qualified clean and check technicians. Agreement includes the following at minimum:

  • Inspect pressure/temperature gauge
  • Inspect expansion tank and confirm air cushion-drain if necessary
  • Inspect pump to include bearing assembly, coupler, motor and motor mounts. Oil if applicable
  • Remove reducing valve screen and clean
  • Confirm reducing valve is operable
  • Remove burners and pilot assembly or flame sensor for cleaning
  • Inspect heat exchanger for water leaks and rusting (excessive rusting or soot cleaned at an additional charge upon approval)
  • Inspect near piping for water leaks
  • Inspect thermostat
  • Cycle heating system
  • Check for proper exhaust of flue gas
  • Inspect controls and wiring
  • Check for proper voltage
  • Check amp draw of water pump
  • Check for proper burner operation
  • Check millivolt reading or flame signal
  • Test electrical circuit to insure safe operation
  • Check and test water operating temperature
  • Give a written report and recommendations of system
  • Combustion analysis and adjustments (optional)
  • Efficiency testing and adjusting (optional)