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Why Does Your Furnace Keep Turning Off Before Reaching the Set Temperature?

April 13, 2026

You set the thermostat to 70 degrees, the furnace kicks on, and just when you think warm air is on its way, it shuts off again. The cycle repeats. The house stays cold. You end up wondering what is going on with your heating system. This problem is called short cycling, and it is one … Continued


Preventive vs. Reactive HVAC Maintenance - Which Approach Costs Less in Durham

April 8, 2026

Most Durham homeowners do not think about their HVAC system until something goes wrong. The air conditioner stops cooling. The furnace will not start. The house is 85 degrees, and it is a Sunday evening. That is when the phone calls start. But here is the thing. That moment of panic is almost always avoidable. … Continued


How Often Should You Schedule HVAC Maintenance in Durham? A Season-by-Season Guide

April 8, 2026

Durham, North Carolina climate pushes your heating and cooling system to work hard. Air conditioners are forced to work very hard during hot, humid summers while heat is needed during cold winters. Besides, spring and fall bring changing temperatures that make your system switch modes. All these things together result in a lot of wear … Continued


What Are the Key Differences Between Residential and Commercial HVAC Services?

April 8, 2026

If you have ever called someone to fix your home’s AC and later wondered why a friend’s office repair bill was five times higher, you are not alone. The gap between residential and commercial HVAC services confuses a lot of people – and honestly, it makes sense why. From the outside, both involve heating and … Continued


7 Warning Signs You Need Emergency Furnace Repair in Durham, NC

April 8, 2026

Winter in Durham, NC can get really cold. The last thing you want is a broken furnace. A warm home keeps your family safe and comfortable. But how do you know when your furnace is in trouble? Some problems need a quick fix. Others need emergency help right now. Knowing the signs can save you … Continued


What Happens When You Don’t Change Your HVAC Filter?

March 27, 2026

Have you heard that approximately 80% of HVAC malfunctions come from dirty or blocked filters?  A lot of people don’t regularly change their filters and are not aware that it directly affects their comfort level, energy consumption, and the life of their system. It is just a small step to changing filters regularly, which can … Continued


What Are The Hidden Dangers of Dirty Ducts and How to Fix Them

March 27, 2026

Dirty ducts may not be the first thing homeowners think about when their HVAC system is not performing well. But ductwork is the system’s circulatory system. When it is clogged with dust, debris, mold, or pest residue, the entire system suffers. The consequences are not just about air quality. Dirty ducts can lead to reduced … Continued


Furnace Not Heating? Common Winter HVAC Problems for Durham Homeowners

March 27, 2026

Winter in Durham can get pretty chilly, and there is nothing worse than realizing your furnace isn’t heating your home as it should. Whether you’ve just turned it on after months of rest or you’ve noticed some rooms are colder than others, furnace problems are a common headache for homeowners. Knowing what might be going … Continued


Key Services Offered by Reliable and Trusted Commercial HVAC Contractors

March 9, 2026

Running a business isn’t just about products or services. It’s about creating a space where employees feel comfortable, clients feel welcome, and everything runs smoothly. A working HVAC system is a big part of that. When heating or cooling goes wrong, it can disrupt your operations and make your space uncomfortable. Commercial HVAC systems are … Continued


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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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