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 Central San Diego

(504 reviews)

Heating & Air Conditioning

Services By One Hour

View More Services

HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Central San Diego, CA

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 Knowledgable

(504 reviews)

Robin Rond

in the last week

“I have needed to spend the money on a new compressor/furnace for awhile now. The entire process working with One Hour Heating and Air was so easy to manage. They really worked with me to get me to the best price possible which I appreciated. The guys that did the install were absolute angels. (Chris, Hiram and Tomas C). We ran into a wiring dilemma but Tomas solved it perfectly and efficiently. Appreciated the overall complete professionalism of this team and would highly recommend One Hour for your HVAC needs.”

Jessica Nguyen

a week ago

“As a new home owner to a fixer upper, it has been overwhelmingly difficult to find reliable, trustworthy, and highly skilled professionals. To my luck, I found a diamond in the rough! The entire process from my initial inquiry to installation, was straightforward, extremely courteous, and meticulous. The installers Tomas, Erick, and Hiram were very friendly and polite that it was a delight to have them in my home. They went above and beyond my expectations with their knowledge and diligence. They didn't mind all my questions and were happy to explain every little thing I wanted to know. They stayed until sunset on a Friday to make sure my whole system was installed perfectly as they ended up needing an unexpected part (my previous system was janky), and had to go to multiple suppliers! I felt so bad that Hiram had to sit through so much traffic, but was ensured that their process is to do things the right way. Tomas also helped me install my new Nest thermostat to ensure the duel fuel system would function smoothly. They checked each vent and room temperature after installation and informed me that they would be coming back every 6 months to do maintenance to make sure my new system is in tip top shape and lasts! I was thrilled that they would call me when its time for maintenance so I don't have to think about it! This really impressed me and showcases the high level quality service they provide. I RARELY write reviews, especially not immediately after! I just am so genuinely happy about this whole experience. They also provided better equipment/systems than other quotes I received, and worked with me for my budget. It really was a no brainer for me to move forward with them over other companies just on the products, comparable pricing, and additional warranties alone, and now that the service is complete, I can't emphasize enough how much I recommend One Hour Heating and AC (Miramar Location)!!”

VTG Mafia

4 months ago

“Erick did a phenomenal job going above and beyond to explain every detail and provide a best course of action for our 1989 home furnace. Coming into our appointment I had zero knowledge of HVAC or what to expect. After my appointment with Erick I feel up to speed with current safety protocols and well equipped to make an informed decision for our home. Erick is a senior tech in his field and is very straightforward, knowledgeable and also friendly. There were quite a few safety concerns with our dated system, but I now feel safe and have peace of mind following my appointment with Erick. It was truly a 5 star experience and I highly recommend scheduling an appointment with Erick for any of your HVAC needs or concerns.”

Jennifer Regnier

a month ago

“5 Stars – Blown Away (Literally and Figuratively) Not only did Karsten save us 4k from a bogus inspection from Anderson Plumbing, from the moment he arrived, it was clear I was dealing with a true professional. Punctual, polite, and incredibly knowledgeable, he walked us through everything step by step. He didn’t just do a quick once-over — he did a full, thorough inspection and explained what was working perfectly and what might need attention down the line (no pressure, just facts). Now my AC is running colder, quieter, and more efficiently than it has in years. I feel so much better knowing everything’s in top shape before the heat really hits. If you’re on the fence about getting your system checked, do it — and call these guys. Best decision I’ve made all season.”

Special Offers

Mention these discounts at time of service

View All

5% OFF HVAC REPAIR OR AC REPAIR FOR HERO MEMBERS

FIRST RESPONDERS, VETERANS, ACTIVE DUTY, TEACHERS - QUALIFY FOR A FREE HERO MEMBERSHIP. Please call (619) 371-3928 for more details.

Can not be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
$0 Service Call Fee!

No service call fee with repair! Call (619) 371-3928 for more information!

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.
Free WIFI Thermostat with NEW AC Units starting at $75 per month!

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.

View All

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.

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 Central San Diego Team

Jonathan M.

Operations Manager

Hi, my name is Jonathan and I have a combined 25 years of electrical and HVAC experience. I have worked on many different types of systems including furnaces, heat pumps, mini-splits, and package AC units. My goal is to provide the highest level of service to every one of our clients. When I am not helping clients make their homes as comfortable as possible, I spend as much time as I can with my wife, children, and grandchildren. I look forward to seeing you soon.
Jeffrey C.

Service Manager

Hi, my name Is Jeffrey, I’ve been in the residential HVAC industry for 27 years. For the majority of my career, I’ve been a technician. Over time, I’ve learned the systems and have been designing systems for clients needs and wants. I treat clients and their home the way I want to be treated when contractors come to my home. I’m a father of two children, 20 year old son and 15 year old daughter. My most prized and joyful in my life are my kids. In my spare time, I like to go camping with my kids, and enjoy watersports. I can't wait to welcome you to the One Hour family!