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Herrin, IL

HVAC Service you can count on

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4.9

(2026 reviews)

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Heating & Air Conditioning

Services By One Hour

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HVAC Service Near Me 
—Available 24 Hours

One Hour Heating & Air Conditioning understands that heating and air conditioning issues create uncomfortable living situations — especially when temperatures outside are extreme. Luckily, our customer specialists are on standby 24/7 to fix your urgent issues. Whether you need HVAC installation, repair, or maintenance, our HVAC service experts are ready to help.

Emergency HVAC Services

We offer 24-hour emergency HVAC services – even on weekends and holidays – to ensure you have professional support when you need it most. Arriving with service trucks stocked full of specialty parts and tools, we have the equipment needed to fix many HVAC problems on the spot. In the case that additional parts are needed, rest assured – we will do everything in our power to handle your HVAC emergency quickly and efficiently.

Air Conditioning

Whether you need an emergency replacement, regular maintenance, or installation services, our qualified technicians have the experience and technological resources to get any HVAC job done correctly. We utilize the latest tools, products, and techniques to stay up to date with cutting-edge changes in the industry.

AC Repair

At One Hour Heating & Air Conditioning, our HVAC technicians service all major AC brands and models. Our AC repair team can fix:

  • Poorly insulated ductwork
  • Power supply breakdowns
  • Defective fans or thermostats
  • Refrigerant leaks
  • Frozen condenser coils
  • Blocked condensation drainage
  • AC short-cycling (turning on and off too quickly)

After inspection, we will provide a detailed estimate.

AC Installation & Replacement

There are many telltale signs that an HVAC unit might need to be replaced. If an HVAC unit is over 10-years old, smells terrible, blows warm air, or produces subpar results as energy bills keep rising, give us a call!

AC Maintenance

For optimal performance, AC units require many parts to work seamlessly together. A single problem can cause a ripple effect of issues. This is why spotting minor malfunctions is critical. With regular maintenance visits, we can ensure your HVAC system is operating smoothly and efficiently. Consider joining our Club Membership for additional customer benefits.

HVAC Services

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Our Happy Customers

Reviews of Herrin

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Emily Hoercher

a month ago

“Jeff is the best! He truly is so well versed in his craft and answered all of my questions. He recommended upgrades based on our needs and even pointed out issues with our dryer vent we hadn’t noticed before.”

Angelo Madonis

2 weeks ago

“Jeff came with fast and prompt responses, he did a thorough inspection of our system and all its elements, and gave us a detailed breakdown. He is very knowledgeable and personable”

Phillip Feazel

4 months ago

“Ryan was on time and we throughly discussed what he would be doing during his inspection and the initial cost. He presented a range of other possible costs for repairs following his inspection and explained he would discuss this with me before proceeding with any other work. He was very detail oriented and knowledgable. I was impressed enough to enroll in their maintenance program.”

Georjanna Bennett

3 weeks ago

“Jeff was our tech that unfortunately had to clean up a half done job by our previous air conditioning service, that still hasn’t returned my calls!! That failed to come & do the annual cleaning (that was paid & contracted for 2 years) & inspection prior to hot weather. So my unit quit this morning & the intake is in my attic, that was 130 degrees. He was up in it for almost 2 hours, without complaints. The external unit had to be cleaned & needed Freon! The girls in the office were very pleasant & helpful. I couldn’t have asked for better service. We are up & running thanks to the crew! Will recommend them to all my family, friends & post on my social media!! Thank you!!!”

Shalynn Miller

a week ago

“Had a great experience with Pass. We have worked with other companies in the past but our experience with Jeff was very positive. He showed us all our options and worked quickly to resolve our AC. He did a great job explaining everything. We joined the Pass club!”