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 SEER Rating?

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.

Bringing Comfort Home

With Expert AC Services

One Hour Heating & Air Conditioning® of Waterloo

4.84

(165903 reviews)

Heating & Air Conditioning

Services By One Hour

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HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Waterloo, IA

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.

We Have a Reputation

For Being Punctual, Friendly and Knowledgeable

4.84

(165903 reviews)

Grant Wirthman

in the last week

“Jackie came by the same day I called and was extremely helpful. She is very knowledgeable and pointed out many things I could do to improve my AC efficiency. I highly recommend using this company, I know they’ll be the first I call going forward”

Michael Surrena

in the last week

“Jake was outstanding, he took the time to fully diagnose the issue with our AC system and advise us on what was needed to correct the issue from a prior improper installation. He put the quote together and we gladly signed off and also join their maintenance club. Outstanding communication and service, Jake showed up ahead of schedule, I highly recommend Jake and One Hour for your AC/Hearing needs, Thank you very for such outstanding service, you have a customer for life!”

Mike Jensen

in the last week

“Greatly appreciate the prompt response on Father’s Day Sunday. Had small grandkids visiting so no AC was not an option. Justin was incredibly helpful. He corrected a mistake by the installers and got our AC back up and running in no time. He also gave us recommendations to help with efficiency.”

Ty Lofton (Ty L.)

in the last week

“Came out timely during the 4th of July holiday, thorough, professional, knowledgeable & offered financing options. The maintenance subscription is affordable & come with good incentives. I would highly recommend 1hr AC/Heating. Thanks Brandon for your knowledge, good customer service & skills during a rough patch over the holidays. 🙏🏽”

Jenna Bass

in the last week

“These guys are absolutely amazing. Armani came out on the 5th of July. He was the 5th hvac company we had out to our house. Every other company swore we needed a whole new unit. While Armani found the issue, got the machine running and offered to work with us in getting the machine running. They save us. I highly recommend this company to everyone I meet.”

Dorothy Olson

in the last week

“Exceptional Service and Support – Highly Recommend! I can’t say enough good things about One Hour Heating and Air Conditioning! I first reached out to them for an emergency air conditioning issue, and even though it was in the middle of the night, Britney took my call with such warmth and professionalism. It was a long process, but she really set the tone for the excellent service to come. Jordan, the technician who arrived to assist, was beyond kind and patient. He helped us with the installation of a new air conditioner, and we were really impressed with his attention to detail. The company also provided some great discounts, which made the whole experience even better! Unfortunately, we encountered a manufacturer issue with the unit, but the team was incredibly prompt and responsive in addressing it. They made multiple follow-up visits to ensure everything was working properly, and each time they arrived, they were professional, courteous, and on-time. I was especially impressed by how they took the time to clean up after the installation and repairs, leaving no mess behind. What truly stands out is their commitment to making sure everything was working as it should. A week later, they even checked in to ensure we were still satisfied. Their honesty, excellent customer service, and fair pricing make them a company I would highly recommend to anyone. —-Dorothy”

Steve Losito

in the last week

“I called One Hour Heating & AC looking for a price quote. Chris showed up looked everything over then explained fully all the work that would be done. He explained about the unit they would install and the warranties that come with it. He also showed me options on payment. Chris was knowledgeable and all around good guy. Chris also made a new friend with my dog.”

Sarah Hannan

in the last week

“I called today, during the afternoon, asking for an appointment to get an estimate. Rob was at my house the same day. I’m very glad I called this company. Great service and excellent expertise.”

Kevin Anderson

in the last week

“Aspen's crew led by Trevor Smith installed a new heat-pump system to replace our old furnace and broken A/C. From quote to finish the whole process was less than a week. The new system is working great! THANKS Trevor, Easton and CREW!”

Rowena Coleman

in the last week

“Very pleased with David Hardenbrook. He was very pleasant, easy to talk to and took care of our cooling need. He explained things well and was great.”

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 StraightForward® pricing 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.