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 Indianapolis

4.8

(6704 reviews)

Heating & Air Conditioning

Services By One Hour

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Air Conditioning

Air Quality

Ductwork

Emergency HVAC Services

Heating

Thermostat Repair

HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Indianapolis, IN

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

4.8

(6704 reviews)

Kirkpatrick Family

06-21-2025

“Robert B checked our AC system to determine the issue and Oscar came out to do the repair once the parts were available. Both were very friendly, professional and reasonable. I appreciated that Oscar deducted the service call charge from the overall repair. We’ve been going with One Hour for years and have been very pleased.”

elisabeth schultz

06-21-2025

“Installed a new AC and furnace. Fair pricing and quick Installation… overall, great service! Will definitely be using them again.”

Kaelyn Marty

06-21-2025

“they did get out to my house a little later than the 3 hour window but i got text message updates on eta and the technician was very nice and helpful. overall I would call them again for my HVAC needs”

Kim Furniss

06-20-2025

“Quick & Honest quote. Thank you.”

RS Keltner

06-20-2025

“Service was great! Brad let did a great job!”

Chris Fuller

06-20-2025

“Frank was on time and was able to diagnose the problem quickly. We appreciate his attention to detail.”

Catina Hall

06-20-2025

“Cesar/Oscar came out and replaced my AC and did a phenomenal job! I had my furnace replaced prior (NOT One Hours work) and the installer did a terrible job, a complete botched job. In addition to installing my AC, he cleaned up the botched job as best he could. He was very professional and the work completed was stellar!”

Kelvin Conley

06-20-2025

“I don’t usually leave reviews, but this guy was different. He showed up on time, super friendly, and you could tell right away he knew what he was doing. Didn’t waste time guessing — found the issue with my A/C fast, explained it in a way I actually understood, and gave me a few solid options without pushing anything. What stood out the most was how easy he was to talk to. No sales pitch, no pressure — just honest advice and real help. That kind of service is hard to come by these days. If you need someone who actually gives a damn and knows what they’re doing, this is your guy. I’d recommend him in a heartbeat.”

David Summers

06-20-2025

“The air conditioning unit was just installed yesterday earlier than originally scheduled. Appreciate this very much. Everyone was professional and courteous. The unit is working great so far...Mr. Mena is to be commended for fast, clean and proficient installation Appreciate his team's excellent service.”

Jan Tobin

06-19-2025

“Oscar arrived on time and listened well to described issue with System shutting off randomly during very high humidity and temperature the evening of 6/17/25. Thermostat wouldn’t accept me trying to get it turned on to either Auto or Cool setting even after I checked breakers and air handler power switch. Later I got it to turn on, but it would immediately go off again. After numerous attempts, “some” would work for short periods before going off. About 5 hours after I discovered the issue, I got it to long enough to cool house ti allow sleep. Next morning, System Off again. Later that day, I tried again and it worked, and has been on since. Oscar did a complete and thorough examination of all equipment, but could not find an issue or any shorts, etc. Yes, this cost me for service call, but at least it is on the record now. Just another day in paradise.”

Special Offers

Mention these discounts at time of service

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$89.95 Cooling Inspection

Expires: 2025-06-30

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
$1525 Off

Any Complete System

Expires: 2025-06-30

Valid on deluxe or better HVAC system, excludes basic systems. Limit one coupon per household at participating locations. Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
How Efficient is Your System?

Get 20% Off Aeroseal today.

Expires: 2025-06-30

Valid at participating locations. Limit one coupon per household. Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Some restrictions, taxes and fees may apply.
Get Ready for Rainy Season!

20% Off All Dehumidifiers

Expires: 2025-06-30

Valid at participating locations. Limit one coupon per household. Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Some restrictions, taxes and fees may apply.
15% Off

Any Electrical or Plumbing Installation

when you book your HVAC tune-up

Expires: 2025-06-30

Valid at participating locations. Limit one coupon per household. Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Some restrictions, taxes and fees may apply.
Free Trip Fee

With Completion of Repair

If no repair is made, service fee may apply. Limit one coupon per household at participating locations!Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.

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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 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.

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.

0% 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 Indianapolis Team

Ricky Fitzgerald

Sales Manager

Ricky Fitzgerald, a U.S. Army veteran from Indianapolis, ventured into lawn and garden sales after his military service. Interested in learning a trade, he joined One Hour Heating and Air Conditioning for their training opportunities and has never looked back. Ricky values on providing best-in-class service to his customers and fostering a positive team-building environment for his employees. He's a father to five children, the proud owner of a purple Tesla, and enjoys online PC gaming.
Zach Calvert

Install Manager

Zach has worked at One Hour Heating & Air Conditioning Indianapolis for his entire 11-year career. He takes great pride in providing customers with a positive experience when they’re purchasing a new HVAC system. Using his years of in-field installation experience, he ensures each install is done properly with high-quality products. When Zach isn’t working he enjoys spending time with his wife of 9 years.
Chris Staley

Service Manager

Description Coming Soon!