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

With Expert AC Services

One Hour Heating & Air Conditioning® of North Jacksonville

4.83

(166626 reviews)

Heating & Air Conditioning

Services By One Hour

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HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in North Jacksonville, FL

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

4.83

(166626 reviews)

Mindy Bass

in the last week

“Jose and Keo were just great. They arrived on time and were very polite. They found the problem, but were unable to fix it, as it needs to be replaced. However they set up an appt for another guy who will review our situation and options with us. So far, my overall impression is very positive. Today we met with Sully to arrange the purchase and installation of a new HVAC unit. He also was very courteous and helpful. While it wasn't great that I need to purchase a new unit, he made the experience as painless as possible. So far, my experience with One Hour Heating & Air Conditioning has been terrific!”

donna baker

in the last week

“I can’t say enough good things about this company. My son and his wife were at our place in Selbyville. They have a two year old. Our air conditioner wasn’t working and it was supposed to be over 100 this weekend. I called the office at 6am and I’m sure it was a service that answered the phone and said they couldn’t come for several days. While I’m calling other companies I get a phone call from their office manager Melissa. She saw that my call had come in and said she wanted to help us. It is now five hours later and my air conditioner is fixed. Prices are reasonable. Matt the technician was very good. I would definitely use again and am thinking about a service contact.”

Mary Gonzales

in the last week

“I am very satisfied with the work that One Hour has done at our home from the installation of my new AC unit to the new ductwork. All of it was done in a timely manner. They actually finished the work before the time I was told it would be finished. They left everything clean like the way they found it. They were very professional and polite. I highly recommend this company. Thank you to One Hour Air, I am a very satisfied customer.”

Jayden Miller

in the last week

“Called on Tuesday and they arrived on time the next day. Chris investigated my furnace issue thoroughly and found the problem. He was honest and I appreciated his friendliness. He has a customer for life!”

Debbie Collins

in the last week

“Our technicians Kenneth Allen and Michael Dorris arrived on time. They were knowledgeable and courteous! They got what I thought was going to be a huge problem resolved in record time. I left them at my house while I went to pick up my husband from the airport. When I returned home they had finished. The issues were completely resolved and they left everything tidy! I highly recommend them to anyone that wants the job done properly!”

LaToya Moore

in the last week

“Outstanding Service! I had an issue with my A/C late at night—it smelled like something electrical was burning, so I turned it off for safety. I found this company online and submitted a service request. To my surprise, I got a call as early as 6:00 AM the next morning to schedule an appointment! Bellamy the technician arrived promptly, was very professional, and took his time performing a thorough inspection. He clearly identified the issues with my unit and explained everything in detail. Overall, I’m extremely impressed with the service—highly recommended!”

Roy Colosanti

in the last week

“Very impressed with Tristin from One Hour Air Conditioning & Heating when he arrived today for our maintenance check on our unit. He was very friendly & professional. He took the time to answer all my questions and explain the maintenance process. He also took the time to recommend the UV system which will help keep our system working effectively and more efficiently. Our first contact with One Hour was with John 6 months ago who came out for a service call and ended up signing us up for the maintenance program. John also was very courteous & professional. Highly recommend this company!”

Janice Talley

in the last week

“After trying for five days to get a technician to service my AC unit, I finally called Simmons One Hour Heating and Air Conditioning. They sent out a technician, Ryan, within a few hours. Ryan was absolutely delightful. He explained everything in great detail. I am thoroughly pleased with the service I received today. Thank you Ryan.”

Sobe It

in the last week

“Cam is an absolute legend! The guy is a AC savant ! It’s nice when you know you’re trusting a professional who is genuinely interested in the customer experience. I will be recommending not only 1 hour , but Cam w/ 1 hour to anyone I can . I cannot thank him enough, this is the only company I’ll use for my heating and AC . Ask for my dude Cam , he is thorough, considerate, and educated and is a true professional. A+++”

Teresa Scattolini

in the last week

“Louis did an excellent job , fully explained the check up results. Found a dirty coil inside and took extra time to clean everything leaving our AC in top working order. Very happy with service today. Thanks, Mike S”

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.