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.

Naperville, IL

HVAC Service you can count on

4.8

(156 reviews)

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.

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 Naperville

4.8

(156 reviews)

Jatinder Kaur

03-27-2026

“Very good experience for the immediate service provided by the One Hour Heating. Technicians were knowledgeable and fixed the issue same day and no complaints afterwards. I will recommend One Hour Heating.”

Inez Flores

03-26-2026

“Great service!”

Matthew Russell

03-20-2026

“Had a consultation about replacing my HVAC system. Consultant was knowledgeable and walked me through several options that were helpful. Positive experience overall.”

Atif Khan

03-19-2026

“Provided prompt and great service, diagnosing and fixing my AC unit. Tech explained the issue to me thoroughly and fixed it in a timely manner. Appreciate their professional service.”

Johnny Collins

03-18-2026

“Very professional technician to repair my furnacewill definitely use them again”

Atiya Meraj

03-07-2026

“Very good service”

Tereno Forbes

02-26-2026

“One Hour Heating & Air and Michael P. Jordan specifically were incredibly helpful. I called OHH&A early Friday morning when I realized my heating was down. The agent walked me through troubleshooting to see if we could fix the issue without sending a service technician. When I was able to get the system running, they had a technician (Michael) at my home later that morning. He temporarily fixed the issue so we had heat through the weekend, and came back on Monday to finish up the full install of our new thermometer. I had an incredible experience from start to finish, and all for a reasonable price given it was an emergency. I HIGHLY recommend using One Hour Heating & Air for any HVAC related issues, especially emergencies!”

Raghuram Narasimhan

02-24-2026

“They did a good job doing the maintenance. They did a courtesy A/C cleanup as well.”

Rio G.

02-16-2026

“KC explained all the details for the install, his team performed outstanding job. Thanks to him I have a new system installed, and the system is working perfectly.”

Monique Purnell

01-26-2026

“KC was the best!! Will definitely keep them in mind for future needs.”

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.