We specialize in comprehensive HVAC maintenance services. Our goal is to ensure your heating, ventilation, and air conditioning systems are always functioning at their best, offering you comfort and efficiency all year round.

HVAC Maintenance in Durham, NC

Tailored Maintenance for Every Need

Residential HVAC Maintenance

Our residential services are designed to keep your home’s HVAC system in top shape. Learn more about our residential HVAC maintenance services.

Commercial HVAC Maintenance

We understand the unique demands of commercial HVAC systems. Our team is equipped to handle large-scale systems with the same attention to detail and expertise. Discover our commercial HVAC maintenance solutions.

Why Regular HVAC Maintenance Matters

  • Enhanced Efficiency: Regular maintenance keeps your HVAC system running efficiently, saving on energy costs.
  • Extended System Lifespan: Proper upkeep can significantly extend the life of your HVAC units.
  • Improved Air Quality: Maintenance services include cleaning filters and ducts, contributing to better indoor air quality.
  • Preventive Care: Routine checks can identify and resolve minor issues before they become major problems.

Our Maintenance Services Include:

Cooling Inspection

  • CHECK/CALIBRATE THERMOSTAT AS REQUIRED
  • INSPECTION OF AIR FILTRATION SYSTEM
  • INSPECT ANY CONDENSATE DRAIN PANS FOR PROPER OPERATION
  • INSPECT UNIT WIRING AND ELECTRICAL DISCONNECT
  • VISUALLY INSPECT/TEST CAPACITORS FOR LEAKAGE AND RUST (INDOOR UNIT)
  • INSPECT BLOWER MOTOR
  • COMPLETE OPERATIONS SEQUENCE CHECK
  • CHECK EVAPORATOR FOR ADEQUATE AIRFLOW
  • INSPECT AND FLUSH CONDENSATE LINES AND CHECK CONDENSATE PUMP OPERATION(IF SO EQUIPPED)
  • INSPECT COOLING SYSTEM FOR UNUSUAL VIBRATION OR LOOSE PARTS
  • CHECK REFRIGERANT LEVEL
  • INSPECT CONTACTOR FOR PITS AND BURNS
  • TIGHTEN SCREW LUG TERMINALS IN CONDENSING UNIT
  • CHECK CONDENSER MOTOR BEARINGS/LUBRICATE UNSEALED CONDENSER MOTOR BEARINGS (AS NECESSARY)
  • INSPECT FAN BLADE FOR CRACKS OR DEFECTS
  • INSPECT AND CLEAN OUTDOOR UNIT, INCLUDING WASHING COILS

Heating Inspection

  • INSPECT FLUE AND VENTING FOR OBSTRUCTIONS/LEAKS
  • INSPECT ENTIRE FURNACE FOR LOOSE OR WORN PARTS AND ABNORMAL VIBRATIONS CHECK TEMPERATURE RISE ACROSS HEAT EXCHANGER FOR OVER HEATING
  • CHECK AND ADJUST MANIFOLD GAS PRESSURES (IF APPLICABLE)
  • INSPECT FURNACE WIRING ASSEMBLY FOR LOOSE CONNECTIONS
  • INSPECT GAS BURNERS(IF APPLICABLE)
  • INSPECT BURNER IGNITION SYSTEM AND ASSEMBLY
  • CHECK HIGH LIMIT CONTROL (ADJUST AS NEEDED)
  • INSPECT GAS LINES AND CONNECTIONS AT FURNACE FOR LEAKS(IF APPLICABLE)
  • INSPECT HEAT EXCHANGER FOR SOOTING, CORROSION, CRACKS, AND DEFORMITIES CHECK ELECTRICAL CIRCUIT TO FURNACE AND TEST ALL ELECTRICAL CONTROLS
  • INSPECT GAS VALVE FOR CORROSION, LEAKS, RESTRICTION OF GAS FLOW AND ABNORMAL NOISE
  • TEST AND ADJUST THE UNIT FOR PEAK OPERATING EFFICIENCY
  • CHECK DEFROST CYCLE AND REVERSING VALVE OPERATION(HEAT PUMPS ONLY)
  • TIGHTEN SCREW LUG TERMINALS IN CONDENSING UNIT (HEAT PUMPS ONLY)
  • CHECK REFRIGERANT LEVEL (HEAT PUMPS ONLY)
  • CHECK EMERGENCY HEAT SYSTEMS FOR PROPER OPERATION (HEAT PUMPS ONLY)

Schedule Your HVAC Maintenance Today

Don’t wait for a system breakdown. Contact Hay’s Heating and Air Conditioning for reliable HVAC maintenance in the Durham, NC area that ensures comfort and efficiency. Schedule your service now and experience the difference with our expert team.

Book Now

Browse Our Special Offers
10% Off for First-Time New Customers

Eligible for customers that have service repair needs.

Free Replacement Quotes

Call (919) 471-8020 to schedule.

$200 Off Qualifying Trane Systems*



*on systems 17 SEER or greater.

See What Our Happy Clients Say

What a great experience! I called Hays and the office staff was so accommodating and friendly. They communicated clearly professionally. The technician called me about 30 min before arriving, quickly diagnosed the issue and have me a clear understanding of the issue. My unit was back up and running within 30 minutes.

Kristal J.

On the recommendation of a friend, I called Hay’s for my spring a/c maintenance. The service was great. The technician was pleasant and helpful. For once, I didn’t feel like a heating and air company was trying to take advantage of me. Pricing was very reasonable. I will definitely use them

Sarah M.

Several of my HVAC units were struggling to cool given the 95+ degree temperatures. I called Hay’s and they sent Brad out to see what was going on. Hay’s installed the HVAC units 15 years ago. Brad wore a mask. He cleaned all of our units and added refrigerant. Brad worked swiftly and efficiently.

Doug H.

Brad was AMAZING!!! When our air conditioner stopped working last night, we were worried that it would be days before someone would be out to look at it. We woke up and the house was 10 degrees warmer than when we went to bed. We were told that someone would be out at noon…

Kristin W.

What can I say about Hay’s? The professionals who work there, from Rosemary to Jeff, the technician, are amazing people. Management is doing an outstanding job with everything. I highly recommend this company. They not only deliver on their high quality service, but…

Anna K.

The Hay’s Heating & Air Conditioning company has always been Johney on the spot as to getting someone out quickly as needed, made the repair or ordered the part. The serviceman also kept me informed of what repairs were made and service was done on their visit.

John T.

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