10 Best 24-Hour in
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Quick answer #1 is Dynamic Comfort AC and Heating (5.0★, 710 reviews)
The best-rated 24-hour HVAC contractors in Tucson, AZ are Dynamic Comfort AC and Heating (5.0★, 710 reviews), City Heating and Cooling LLC (5.0★, 457 reviews) and American Conditioned Air (5.0★, 360 reviews).
- 4.9★average rating
- 10,447Google reviews
- 10open 24/7
- 9hvac specialists
Checked · How we rank
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About this list
These are the 10 highest-rated HVAC contractors in Tucson that are open 24 hours a day, 7 days a week. Out of 47 HVAC contractors in Tucson with round-the-clock hours, these average 4.9 stars across 10,447 Google reviews. Dynamic Comfort AC and Heating ranks first with 5.0 stars from 710 reviews.
Compare all 10 side by side
| # | Business | Rating | Reviews | 24/7 |
|---|---|---|---|---|
| 1 | Dynamic Comfort AC and Heating | 5.0 | 710 | Yes |
| 2 | City Heating and Cooling LLC | 5.0 | 457 | Yes |
| 3 | American Conditioned Air | 5.0 | 360 | Yes |
| 4 | Hamstra Heating & Cooling | 4.9 | 2,770 | Yes |
| 5 | Pride Heating, Cooling, Plumbing and Electrical | 4.9 | 2,182 | Yes |
| 6 | Russett Southwest Corporation | 4.9 | 1,557 | Yes |
| 7 | Temperature Control, Inc. A/C-Heating & Plumbing - Oro Valley, AZ | 5.0 | 582 | Yes |
| 8 | Top Care Air Heating and Cooling | 5.0 | 240 | Yes |
| 9 | Plunkett Home Services | 4.9 | 839 | Yes |
| 10 | A1 Air Conditioning & Heating LLC | 4.9 | 750 | Yes |
Before you hire an HVAC contractor
5 quick checks before you call.
- Check the license.
In Arizona, look them up with the Arizona Registrar of Contractors (ROC).
- Ask for proof of insurance.
Liability insurance covers damage to your home if something goes wrong.
- Get 2 or 3 written quotes.
Compare what each one includes, not just the price.
- Don't pay everything upfront.
A deposit is normal. Pay the rest when the work is done.
- Read the newest reviews.
Recent reviews say more about the business today than old ones.
Questions people ask
Who is the best-rated 24-hour HVAC contractor in Tucson?
Dynamic Comfort AC and Heating ranks #1 with 5.0 stars from 710 reviews.
How many HVAC contractors in Tucson are open 24 hours?
We found 47 HVAC contractors in Tucson open 24 hours, 7 days a week. These are the 10 with the best ratings.
Which HVAC contractor in Tucson has the most reviews?
Hamstra Heating & Cooling has the most, with 2,770 Google reviews and a 4.9 rating.
How do I check if an HVAC contractor in Tucson is licensed?
Look them up with the Arizona Registrar of Contractors (ROC) at https://roc.az.gov/. Also ask for proof of insurance before work starts.
How is this list ranked?
We rank by Google star rating weighted by review count, so a 4.9 with 400 reviews beats a 5.0 with 8. HVAC specialists get a small edge over companies that also list other trades. Details were last checked Nov 2, 2026.