What does the One Hour mean in your company name?

The 'One Hour' in our company name indicates our guarantee to be at your home in the predetermined window quoted when you set your appointment. If we do not show up within that window, your service call fee is waived. 1. Express Appointment: This is an appointment that is scheduled during a specified one-hour time slot. You are promised that a technician will arrive at your home within this one-hour time window. You will also receive a call when the technician is en route to your home. 2. Reserved Appointment: This is an appointment that is scheduled during a specified, two-hour time slot. You are promised that a technician will arrive at your home within this two-hour time window. You will also receive a call when the technician is en route to your home. 3. Standard Appointment: This is an appointment that is scheduled during a specified four-hour time slot. You are promised that a technician will arrive at your home within this four-hour time window. You will also receive a call when the technician is en route to your home. 4. Stand-By Appointment: This appointment is for overflow situations. This appointment will not have a specified time. You will receive a call when the technician is en route to your home. 5. Emergency Appointment: This appointment is for an unspecified time after normal business hours Monday – Saturday and all day on Sundays/Holidays. Calls are dispatched in the same order they are received. You will also receive a call when the technician is en route to your home.

Do you service emergencies after-hours?

Yes, we offer emergency services 24-hours a day, year-round.

How much will my service cost?

The size and complexity of your HVAC issue will determine the cost. Because our trained, licensed HVAC technicians must diagnose the issue before we are able to quote you an accurate cost, we require an appointment to be set to complete a diagnostic on your system. Once the diagnostic is complete, your One Hour® technician will walk you through all costs using our Straightforward Pricing® Guide so there are never any surprise fees.

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Herrin, IL

HVAC Service you can count on

4.9

(2201 reviews)

Heating & Air Conditioning

Services By One Hour

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HVAC Emergencies

Fast 24/7 emergency HVAC repairs to restore your comfort when you need it most today.
Air Conditioning

Reliable air conditioning services to keep your home cool and comfortable all year.
Thermostat Repair

Expert thermostat services for precise temperature control and maximum energy savings.
Ductwork

Expert ductwork services to optimize airflow and maximize HVAC system efficiency.
Indoor Air Quality

Comprehensive air quality solutions for healthier, cleaner indoor air in your home.
Heating

Professional heating services to keep your home warm and comfortable year-round.

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.

Give our team a call today or contact us online to request your same-day HVAC service.

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

Common Questions

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Our Happy Customers

Reviews of Herrin

4.9

(2201 reviews)

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Well... I did call your office to brag about Chandler!! He was a very nice young man and did a great job. I have been very happy with your PASS . A friend of mind suggested I call you how ever many years ago it has been. I really like your yearly plan and the check ups your technicians do. Looking to the questions below: I believe I paid about $170.00 for a years maintenance... I think. I never did get back with you on the winter check... too many things happening... sickness... death in the family. I will say that it was a shock to pay like $80 for a new filter. I guess I don't remember the price... of course we ALL know prices on everything are going up. I'm just trying to stick to a trusted company... and so far so good.

christy christensen

2 weeks ago

Technician was prompt on time and was very knowledgeable. He worked with me with my limited knowledge. To make me understand a little bit better. I'm the kind of person that believes. If you do a good job, I'm more likely we'll use you again.

Bernard Brown

2 weeks ago

I couldn’t be more pleased! I wish everything I deal with was this easy! Customer service was incredible every step of the way. Jake our technician was very professional, knowledgeable and personable! I will definitely request that he returns for all of my HVAC needs.

Jill Barnfield

3 weeks ago

Pass One Hour were all very courteous and knowledgeable. Helped in deciding what options I had, and was able to make a decision without being pushed or misled. Thank you to all who came to my house, for helping this to be a happy transition. And thanks to the rest of you at PAs One Hour as well. Appreciate you all… Thank you 😊

Nick Ori

4 months ago

Chris, Brandon and Alex Thanks for y'all's prompt clean and professional job. They did a wonderful job. The house was 12° cooler before they even got done loading up the old unit. They explained everything and answered any questions I had. I can't say enough about how great of a job these young men did .. I will recommend to anyone in need. Thanks for everything The Frazee family

William Frazee

10 months ago

Servicing your entire home

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Authority Brands is the leading provider of in-home services, building brands that support the success of franchisees as well as better the lives of the homeowners we serve and the people we employ.