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(R) technician will walk you through all costs using our Straightforward Pricing(R) Guide so there are never any surprise fees.

How often should I service my HVAC system?

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.

How often do I need to change my HVAC filter?

Your filter should be changed every one to three months, depending on conditions in your home and your region's climate.

Do you offer purchase financing?

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.

What are the advantages of a smart thermostat?

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.

What is a SEER2 Rating?

The SEER2 (seasonal energy efficiency ratio) is a measure of the efficiency of your heating and cooling system.The higher the SEER2 rating, the more efficiently a unit operates. The SEER2 rating of any given unit can range anywhere from 13 to 21.

Bringing Comfort Home

Herrin HVAC Services

Pass One Hour Heating & Air Conditioning®

4.9

(2062 reviews)

Heating & Cooling

Services By One Hour

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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 Pass 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 Pass 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.

We Have a Reputation

For Being Punctual, Friendly and Knowledgable

4.9

(2062 reviews)

William Frazee

a month 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”

Emily Hoercher

3 months 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.”

Robert Wall

a month ago

“Jeff was was very helpful and knowledgeable. Allowing me to ask questions and then taking the time to explain so I understood. As veteran my wife and I appreciate Pass offering specials to us. I never expect it, but i do my best to frequent business that offer them. I believe Pass to be a good value and Jeff to be a quality technician.”

Angelo Madonis

2 months 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”

Cheryl Ligon

a month ago

“Nathan did an awesome job getting us back up and running with our air conditioning. We really appreciate the after hour support they give their customers. Nathan was very quick to reach out to us after I called to report the issue. We highly recommend Pass One Hour.”

HVAC Services You Can Count On

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're an independently owned and operated business with a personal investment in the local community. We back our work with a 100% satisfaction guarantee, provide StraightForwardPricing® guides for your benefit, and will pay you back for being even one minute late to an appointment.

Here For You

When You Need Us Most!

Yellow One Hour Heating & Air Conditioning service van with company branding and slogan.

'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.

Financing Available!

Prioritize your comfort without fronting the entire bill on day 1 – contact us today to learn more about financing options.

Discover Your Options

Meet the Herrin Team

Francis Pass

Owner

Hi, my name is Francis! My favorite food is ribeye steak, and like watching football and NASCAR. My favorite animal is the Bald Eagle, and I absolutely love soaking in the scenic sights all around Southern Illinois. Something interesting about me is that I love building connections through storytelling!
Richard Pass

Owner

Hi, my name is Richard! My favorite food is spaghetti and I love a good cheeseburger. I enjoy watching football and working around my yard. My favorite pets are my dog Cooper, and my two cats, Oreo and Sunnyboy. Something interesting about me that not everyone knows is that I was a single father for 27 years.
Spencer Pass

Chief of Operations

Hi, my name is Spencer! My favorite food is ribeye steak, and I like watching hockey and football. My favorite animal is the lion, and I enjoy carpentry and working on trucks in my spare time.
Chris Roland

Installation Technician

Hello, my name is Christopher Roland. No sport is quite as enjoyable as hockey to me! My favorite food is a nice big plate of pasta. I really like cats and watching movies to pass the time. Something very interesting about me is, I am an exceptional Limbo player!
Amber Rady

Client Care Representative

Hailing from Cypress, IL, Amber came to Pass One Hour in 2023 after working as a medical assistant. She soon found herself surrounded by a great team and a family atmosphere. She appreciates how others listen to her ideas and consider her to be a valued member of the team.

Amber’s typical day begins with taking care of her four dogs and making coffee before heading to the Big Yellow Shop. At work, she is responsible for answering phones, scheduling, and following up on sales calls.

In her free time, Amber loves reading (and listening) to books and considers herself a fast reader. If she could have dinner with anyone, she’d choose authors Adrianna Locke and Aurora Rose Reynolds. She would also invite her Grandpa Lewis, who she frequently walked with to the local gas station as a child to get a soda and candy bar.

One of Amber’s proudest accomplishments has been being able to support herself while also helping her parents. If she could travel anywhere in the world, she would enjoy going to Germany, and the title of her biography would be “The Crazy Gains and Downfalls.
Amanda Matheny

Administrative Assistant

Hello, my name is Amanda! I absolutely love watching baseball, and is by far my favorite sport. I believe Thai food is the best, and I am very fond of cats and dogs. The hobbies I enjoy the most are reading and hiking, and something interesting about me is that I have 3 family pets, 2 cats named Mariah and Whitney, and 1 dog named Olive.
Collin Dover

IAQ Manager

Hi, my name is Collin! I have 6 children, whom I love very much. I also have 2 dogs, Lydia and Serana. In my free time, I love playing video games and hanging out with my grandchildren. My favorite food is pasta, and my favorite animal is dragons. I look forward to serving you today!
Andrew Cooper

IAQ Technician

Hi, my name is Andrew! In my free time, I love hiking and watching UFC. My favorite food is sushi and my favorite animal is cats. I have a daughter who is my world. I look forward to serving you today!
Jeff Buchanan

Service / Maintenance Technician

Originally from Marion, IL, Jeff started working at Pass One Hour in 2013 after previous stints in landscaping and road construction. He begins each day by putting on his uniform, drinking some coffee, helping his daughter get ready for school, and grabbing his trusty flashlights before leaving for work. He also believes that Pass One Hour’s roots as a family business is the company’s greatest strength.

Some of Jeff’s favorite memories from his childhood come from vacations with his grandmother, and his most prized possessions are his sports cards.
Ricky Smith

Sales Manager

A Marion, IL native, Ricky joined the Pass One Hour team in 2022 after previously working as an auto parts manager. He appreciates how everyone in the company treats one another like family, and he’s learned the value of asking for help when needed.

If Ricky wrote a book about his life, he would title it: “Normal.” Some of his fondest childhood memories are of family dinners, and if he could travel anywhere in the world, Ricky says he would go back home. He considers himself to be a good farmer, and he loves cars, naming his 2015 Chevy Camaro as his most prized possession. One of Ricky’s proudest moments was when he earned his degree
Theodore Green

Service / Maintenance Technician

Theo came out of retirement in 2022 to join the Pass One Hour team and has since learned many skills of the trade. He believes that the company’s greatest strength is its family-based structure, as they treat everyone – customers and employees – like family. His favorite part about the job are his co-workers.

Theo typically starts his days with a workout and some coffee, followed by feeding his dogs and fixing his wife breakfast. He never leaves the house without his license and some money, and says his truck is one of his most prized possessions. One of his proudest achievements was when he bought his first house.

Theo has fond childhood memories of getting together with family for a fish fry every Friday, and if he could have dinner with anyone, he’d choose his mom, grandmother, and Uncle. Given the opportunity to travel anywhere, he would visit Japan. Theo’s hidden talent is playing the piano, and he would title his biography “Go With the Flow.
Noah Meyer

Service / Maintenance Technician

Hello, my name is Noah and I joined the Pass One Hour team in April 2025. I enjoy spending time outdoors fishing, hiking, and kyaking. The food dish I prefer the most would have to be the pork tenderloin, and my favorite animals are cats and dogs. When I'm not spending time doing carpentry or traveling, I'm working on getting my commercial pilot certificate. Something interesting about me is that I am currently in the Air National Guard and am a private pilot.

HVAC Near Me In...

One Hour Heating & Air Conditioning® of Herrin services the following communities:

Benton
Bonnie
Buckner
Christopher
Coello
Du Quoin
Ewing
Frankfort Heights
Freeman Spur
Ina
Mount Vernon
Mulkeytown
Nason
Orient
Sesser
Thompsonville
Valier
West Frankfort
Whittington
Carbondale
Cambria
Carterville
Colp
Creal Springs
De Soto
Dowell
Elkville
Energy
Galatia
Goreville
Harrisburg
Herrin
Hurst
Johnston City
Makanda
Marion
Muddy
Murphysboro
Pittsburg
Royalton
Zeigler

One Hour Heating & Air Conditioning technician talking to a customer on the phone.

Hours of Operation

We are available 24/7 to take your call for emergencies. For all other services, our appointment hours are:

Monday

24 hours

Tuesday

24 hours

Wednesday

24 hours

Thursday

24 hours

Friday

24 hours

Saturday

24 hours

Sunday

24 hours

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Servicing your entire home

Part of the Authority Brands Family

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.