What’s the best thermostat setting for summer in Herrin?

For optimal comfort and energy savings during summer in Herrin, set your thermostat to 78°F (25°C) when you're home. If you're away, raising it to 85°F can help reduce cooling costs. Using a programmable or smart thermostat can make these adjustments automatic and more efficient.

Do you provide emergency after-hours HVAC service in Herrin?

We are available 24/7 to take your call for emergencies. Our appointment hours are listed above.

How can I improve indoor air quality in Herrin?

To improve indoor air quality in Herrin, start by regularly changing your HVAC filters, scheduling routine maintenance, and using air purifiers. Consider duct cleaning if your home has excessive dust or allergy symptoms. Proper ventilation and keeping your home clean are key to healthier air.

How often should I service my HVAC system in Herrin?

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.

Do you offer HVAC financing in Herrin?

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.

How often should I have my furnace serviced in Herrin?

It’s recommended to have your furnace professionally serviced once a year, ideally in the fall before the heating season begins in Herrin. Annual maintenance helps ensure safe operation, improves efficiency, and can extend the life of your system.

How often should I have my air ducts cleaned in Herrin?

It’s generally recommended to have your air ducts cleaned every 3 to 5 years in Herrin, or more often if you notice dust buildup, allergies, or musty odors. Homes with pets, recent renovations, or high pollen levels in Herrin may benefit from more frequent cleanings to maintain healthy indoor air quality.

How often should I schedule AC maintenance in Herrin?

You should schedule AC maintenance once a year, ideally in the spring before the cooling season starts in IL. Regular tune-ups help your system run efficiently, prevent breakdowns, and extend the life of your unit, especially important in Herrin's summer climate.

What size HVAC system is right for my home in Herrin?

The right HVAC system size for your home in Herrin depends on factors like square footage, insulation, number of windows, and local climate. A professional load calculation ensures your system is properly sized for comfort and efficiency. Oversized or undersized units can lead to higher energy bills and uneven temperatures.

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Herrin HVAC Services

Pass One Hour Heating & Air Conditioning®

4.9

(2195 reviews)

Heating & Cooling

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 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.

One Hour Heating & Air Conditioning technician Checkin HVAC.

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

Herrin 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.

We have a reputation for being punctual, friendly and knowledgable

4.9

(2195 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

a week 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

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

As a widow of a Disabled Marine Veteran, I have been overwhelmed with various tasks to handle, when My HVAC unit was acting up just ahead of a cold snap, I was terrified! Many companies do not service the remote area That I reside in. My call to Pass One Hour, was undoubtedly the best decision, Instead of having to wait days with the impending freeze that was soon to take hold...The friendly Professional Assistant, told me she could have someone out the next day.Theo , the Professional Technician, immediately addressed the problems and took time, care, and expertise, to make SURE everything was repaired and to my satisfaction. The prices were so fair and reasonable, I will ALWAYS call Pass One Hour! Thanks so much!

Bunny Hofer

7 months 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

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

Spencer Pass is a Southern Illinois native, family man, and passionate leader who believes in hard work, treating people right, and always finding ways to improve. As part of the leadership team at Pass One Hour Heating & Air Conditioning, he is focused on building a company that values family, community, and doing quality work the right way. Spencer enjoys the outdoors, working alongside his team, and creating opportunities for growth both inside and outside the business. He is also a proud foster parent to an amazing 6 year old boy, an experience that continues to shape his perspective on leadership, patience, and the importance of giving back.
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.

HVAC Near Me In...

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

Benton
Bonnie
Buckner
Christopher
Coello
De Soto
Du Quoin
Energy
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

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