Let Us Make Your Home

Feel Like Home

Pass One Hour Heating & Air Conditioning®

Call Us(618) 427-2420

4.9
(1573 Reviews)

Here For You

When You Need Us Most!

'Round the Clock Availability

No matter the hour, you can trust One Hour to be there to help you when you get hit with the unexpected.
100% Satisfaction Guarantee

We guarantee our materials, labor, and craftsmanship for up to two years from the date of your service.
StraightForward Pricing® Guide

Before we start any work, we discuss your available options so you know exactly what you are getting and how much it will cost. No hidden fees!
Always On Time…Or You Don’t Pay A Dime!®

We understand your time is valuable, so we promise to arrive at your home within the predetermined time window that you select, or your service call is free.

Learn More About Us

100% Satisfaction Guaranteed

Herrin

HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Herrin, IL

When homeowners want a reliable heating or air conditioning system that they don’t have to think about, they call One Hour Heating & Air Conditioning. We are the premier HVAC service provider in the United States for a simple reason: we actually care about your comfort.

At One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. It’s why we back all of our work with a 100% customer satisfaction guarantee for two years, and it’s why we’re always on time—guaranteed.

or Call us at (618) 427-2420

Heating & Air Conditioning

Services By One Hour®

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Need HVAC Help ASAP?

Call Us Today at (618) 427-2420

Our team will take your call 24 hours a day, seven days a week. Below are our service hours of operation.

Monday:

7:00 AM - 5:30 PM

Tuesday:

7:00 AM - 5:30 PM

Wednesday:

7:00 AM - 5:30 PM

Thursday:

7:00 AM - 5:30 PM

Friday:

7:00 AM - 5:30 PM

Saturday:

8:00 AM - 2:00 PM

Sunday:

9:00 AM - 5:00 PM

Frequently

Asked Questions

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.
Yes, we offer emergency services 24-hours a day, year-round.
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(R) technician will walk you through all costs using our Straightforward Pricing(R) Guide so there are never any surprise fees.
It’s ideal to service your cooling system each spring and your heating system each fall to ensure you find small issues before they become big problems.
Your filter should be changed every one to three months, depending on conditions in your home and your region’s climate.
We work built relationships with several lenders to ensure our customers are able to restore comfort in their homes. Ask your technician about your financing options.
Smart thermostats learn a household's patterns and adjust heating and cooling according to when a home is occupied, give homeowners the ability to control the thermostat remotely, and enable homeowners to reduce their energy use, saving you money.
HVAC means Heating, Ventilation, and Air Conditioning. HVAC systems refer to air conditioners, furnaces, and any unit that cools indoor spaces during the summer and warm them in the winter.

In general, an HVAC system takes in air, heats or cools that air, and blows it into a room or any indoor space. While many homes have separate air conditioning and heating units, others have a heat pump that cools and heats the house.

Not only do HVAC systems maintain desired temperatures, but they also improve indoor air quality and regulate humidity levels. But most importantly, these units provide comfort all year round.
The SEER (seasonal energy efficiency ratio) is a measure of the efficiency of your heating and cooling system.The higher the SEER rating, the more efficiently a unit operates. The SEER rating of any given unit can range anywhere from 13 to 21.

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Herrin

HVAC Services Have Great Guarantees

Our customers love what we do because we treat them like the neighbors they are to us. While we carry the One Hour name, we are an independently owned and operated business with a personal investment in the local community. We back our work with a 100% satisfaction guarantee, provide StraightForward® pricing guides for your benefit, and will pay you back for being even one minute late to an appointment.

Find out for yourself why customers love what we do by calling our Herrin HVAC repair, installation, and maintenance team today!

or Call us at (618) 427-2420

Our

Happy Customers

Our Comfort Specialists are available to help, no matter the time of day. If you're in need of emergency services, we've got you covered 24/7.

Read More Testimonials

“I am thoroughly impressed with the exceptional service provided by Scott Clinton! My air conditioner was on the fritz, and I was worried I'd be stuck in a sweltering or freezing home for days. But Scott came to the rescue, promptly diagnosing and fixing the issues with ease. His expertise, professionalism, and friendly demeanor put me at ease throughout the entire process. What stood out most was his attention to detail and commitment to ensuring everything was working perfectly before leaving. He even took the time to explain the repairs and offered helpful tips for maintaining my system. If you're in need of reliable, efficient, air conditioner or heater repair, look no further than Scott! Five stars and a big thumbs up from this very satisfied customer.”

John Moro

“Nate did a wonderful job. He was very informative, thorough and polite!! He was able to get our unit back in proper working order quickly. Ryan assisted him today and was very helpful and understanding also.”

Melissa Walden

“Technician Jeff is thorough, informative, and shows his expertise with his level of professionalism and extensive knowledge of all things ductwork, heating/air, filtration, and technology. He took extra time to help us understand what all our options are and how these options impact our home, utility bills, and health. He is beyond polite and asked several times to not hesitate with any and all feedback for the company and interactions. He also offered to assist me with anything I may need before ending our appointment. Much appreciated and HIGHLY recommended!!”

Linds Loo

“The whole Pass One Hour team was fantastic! Jeff was at our house before the scheduled time for a same day call! He was very thorough in his inspection and took his time investigating our problem. He sat down and explained everything in detail and offered his recommendations. I am very impressed and thankful for the service Jeff provided! We will be customers for life and will definitely recommend friends and family!”

Whitney Rexing

“We recently had the opportunity to engage the services of Pass One Hour for 1) maintenance of our HVAC system and 2) duct cleaning. Nate appeared early to the scheduled time to do the maintenance work. He was a very personable young man, willing to explain his procedures and recommendations. He was not "pushy" at all with his recommendations for certain repairs that he felt needed addressing. He gave options, allowing for things that needed immediate attention, things that could wait, and simple things that we could do ourselves. He appeared very knowledgeable in his explanations and you could tell that he had interest in what he was doing and how. Consequently, we scheduled an appointment for a duct cleaning, had him fix the immediate problem of the connectors and signed up for the Comfort Club for routine maintenance. As I am sure Pass knows, Nate is a great asset to the company. (10/10). The following week, we had the ducts cleaned by Collin (and his assistant). The process was interesting to watch, as we had no idea what to expect. Any questions that we asked were answered thoroughly. We were also able to see what was removed from the vents, mostly cat hair/dander. The vent covers were removed, the holes covered and then the covers were cleaned and replaced neatly. There was no mess. You couldn't tell they had been here. Collin and crew were also 10/10. Very personable and professional. Would highly recommend duct cleaning. We have noticed a big difference in "allergy" symptoms and house dust. We are very pleased.”

Barb Mayfield