What Is the $5,000 Rule for HVAC?

The $5,000 rule for HVAC is a guideline for when to repair or replace your system. If your repair quote is around $5,000, replacing your entire system might be more cost-effective in the long run. Talk to your technician about the best approach for your HVAC.

What Is Considered an Emergency for HVAC?

A complete system failure is a clear sign that you have an HVAC emergency. Additionally, if you smell gas or your carbon monoxide detector goes off, evacuate the building immediately. Once you're out, contact an HVAC specialist to help you address a potential gas or carbon monoxide leak.

How Long Can I Run My HVAC on Emergency Heat?

You can technically run your system on emergency heat as long as needed, but this setting is meant to be temporary and uses more energy than standard heat. If you want to avoid higher energy bills, get a technician in as soon as possible.

One Hour Air Conditioning & Heating® of Houston

24/7 Emergency HVAC Services in Houston

You depend on your HVAC system to get through Houston heat waves and cold snaps. When your heating or cooling system fails, you can't afford to wait for repairs. One Hour Air Conditioning & Heating® is here to help with 24/7 emergency HVAC services in Houston. Our technicians are always available and ready to restore your system quickly and reliably. Trust us for professional service backed by a 100% satisfaction guarantee.

Comprehensive Houston Emergency HVAC Services

Unexpected breakdowns can disrupt your day, but the team at One Hour Air Conditioning & Heating® is ready to handle any HVAC emergency. We offer:

Our HVAC services go beyond emergencies. Call us for all your heating and cooling needs in Houston, including repair, maintenance, and installation for AC, heating, ducts, air quality, and thermostats.

Why Call Us for Expert Houston HVAC Emergency Service?

In an emergency, you need a reliable partner you can trust to protect your home and family. One Hour Air Conditioning & Heating® offers local support and national resources. Our team is experienced, background-checked and ready to get to work as soon as we arrive. We offer:

On-time and satisfaction guarantees
Services during days, nights, weekends, and holidays
Upfront pricing and no hidden fees

Fast Emergency HVAC Service in Houston, TX

An HVAC outage can be dangerous, especially during extreme heat or sudden snowstorms. That's why our emergency services are designed for speed without sacrificing quality.

When you call, we'll dispatch trained professionals who can diagnose and fix most issues in one visit. Plus, we'll provide an upfront estimate before work begins. You can count on us for honest, reliable work when you need it most.

Schedule Emergency HVAC Services in Houston Now

When your comfort is at risk, every second counts. One Hour Air Conditioning & Heating® provides fast, effective service to keep you safe year-round. Book your service online or call us for assistance day or night. For additional tips on heat safety and understanding health risks, check out the CDC’s Heat & Health Tracker or HEAT.gov.

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We Have a Reputation

For Being Punctual, Friendly and Knowledgable

4.7

(9431 reviews)

jacquelyn mosby

3 months ago

“One Hour does amazing work. Mr. Craig was professional, kind and understanding of my family's needs. He came out on a rainy wet day with no complaints. The price was a little high for my budget. But the work was well worth it. Thanks One Hour Air conditioning and heating , and thank you Mr. Craig.”

737 Tech

a month ago

“Individual technicians are respectful, ontime, and knowledgeable. Bounced around various AC companies for annual preventive maintenance for my 12 year unit over the years. All said the same thing "your unit works but you should consider replacement due to age and that It is out of warranty" of course there were other recommendations and concerns given based off probability. Needless to say last November 2024 I had the whole AC system replaced by One hour to prevent my family from having to deal with a system failure in the middle of a heatwave and based of the recommendation of one hour to ensure longevity and peace of mind. And of course it will be covered under "Warranty ". I was a happy camper. 11 months since the new install and its not cooling. Refrigerant leaked out. Brand new system has such a big leak it dumped 8 lbs within 3hrs. One hour provides 24 hr emergency services. I need the evaporator coil replaced, its triple digit weather in houston. Its Saturday when it went out, the tech determined the issue at 8pm. Left house under the impression it was a small leak, unfortunately it was not. Reached out to notify one hour the severity of the issue. I was told t9 call back in the morning. Called sunday morning and was told Parts department closed on Sunday. Around 8pm on sunday night i receive a phone call that I had to wait until Monday to know if parts are in stock and get scheduled for a repairand that an email was sent on my behalf based off my concern. I replaced a working unit with minor issues, and at that time scheduling was wide open with parts available same day or next. Now the "warranty " coverage comes into play, the item my old unit didn't have. Sunday night no repair scheduled or update on parts. House reads 91 degrees. Warranty doesn't cover hotels , window units, fans, or take in consideration of people. So im indifferent about it all. Frustrating as it may be they answered the phone everytime no matter the time of the day. Monday came and the part was located and they had the installers out in the afternoon. So with all that happened I can say Im glad they answered the call and though it wasn't on my time expectations (which is like fix it now!!) One hour got it done.”

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