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One Hour Heating & Air Conditioning

Top Pro

Licensed
Licensed
This pro is currently not available for Central Air Conditioning Repair or Maintenance
This pro is currently not available for Central Air Conditioning Repair or Maintenance

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About
The #1 largest HVAC service provider in the United States, at One Hour Heating & Air Conditioning of San Diego, we take our commitment to customer service seriously. We're so serious about it that we even have an on-time guarantee, which means if we're not on time, you don't pay a dime. Yes, you heard that right. We believe that your time is valuable, and we don't want to waste it. That's why we make sure to always show up on time and get the job done right. Plus, if there's ever a problem, we'll do everything we can to make it right. With our dedication to customer service, you'll feel like you're part of the family (the cool, air-conditioned family). We know how important your comfort is, which is why we take every measure necessary to ensure that you get the best quality service and products.
Overview

Current Top Pro

Hired 60 times

Background checked

License verified

38 employees

23 years in business

Business hours

Sun9:00 am - 4:00 pmMon8:00 am - 8:00 pm

Payment methods

This pro accepts payments via Cash, Check, Credit card, Venmo, and Zelle.

Social media

Facebook, Instagram

Top Pro status

Top Pros are among the highest-rated, most popular professionals on Thumbtack.

Top Pro Icon

2025

Top Pro Icon

2024

Credentials

License verified

C20 – Warm-Air Heating, Ventilating And Air-Conditioning Contractor

License state: CA

Background checked

Passed by Roy Koldaro on Aug 3, 2023.

Services offered
A/C services needed

Repair

Routine Maintenance

Property type

House

Condo/Apartment

Townhouse

Projects and media
Projects and media
Reviews

Customers rated this pro highly for work quality, punctuality, and responsiveness.

Excellent 4.9

108 reviews

5

97%

4

0%

3

0%

2

0%

1

3%

This pro's rating is a combination of reviews posted by customers both on and off of Thumbtack. Thumbtack cannot verify external reviews.

Read reviews that mention:


pro avatar
KRISTOFFER Q.

Jun 29, 2026

From Google

Carlos provided exceptional service during his visit to our home. He took the time to thoroughly explain how our A/C unit works, what maintenance it needs, and what we can do to improve the quality of the air in our home. His knowledge and expertise were evident, and with over 20 years of experience, it was clear we were in great hands. Carlos was professional, patient, and genuinely kind throughout the entire appointment. I highly recommend Carlos and One Hour Heating & Air to anyone looking for honest, knowledgeable, and outstanding HVAC service!
pro avatar
Pamela P.

Jun 29, 2026

From Google

Carlos did very well explaining what we needed. Even showed us his certifications! He also repaired our unit when other companies said "not repairable."Took him a few minutes. But we still wanted to purchase a new system( ours is 40 yrs old) simply because they are more efficient. Pam P.
pro avatar
Brian H.

Jun 30, 2026

From Google

Called on Friday afternoon and they had a tech at my home by Saturday morning. The service technician Daniel was extremely professional & knowledgeable. Daniel patiently discussed my repair needs and offered cost effective options.
pro avatar
John R.

Jul 3, 2026

Hired on Thumbtack

Carlos was great, very professional, easy to talk to. He gave me an outstanding proposal with management approval over the phone. the staff is more than willing to work with me to accommodate my calendar as well as my budget.

Details: Install ducts and vents • Replace an existing A/C unit • As recommended by the professional • I need the professional to purchase the unit • As recommended by the professional • Location recommended by the professional • 1,000 - 2,000 sq ft • One story • House • Owner

Central Air Conditioning Installation or Replacement
pro avatar
Romain P.

2 days ago

Hired on Thumbtack

Great visit from Anthony who i worked for a quote for my heatpump project. Unfortunately due to budget constraints went with another provider

Details: Replace an existing A/C unit • Split system • I need the professional to purchase the unit • Attic • Ground floor • 2,000 - 3,000 sq ft • Two stories • House • Owner

Central Air Conditioning Installation or Replacement
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