O-Zone Heating and Cooling

08/28/2026

💧 Another project completed at O-Zone Heating & Cooling!
We designed and installed a rainwater collection system for our building. This was a complex project, and it took a great team to make it happen.
🔨 Ryan Wilson / Wilson & Sons — excavation
🔧 Oswaldo Cardenas Morfin — plumbing
💪 The entire O-Zone team — helped throughout the process.

I’m proud of what we built and even more proud of the team that helped bring the idea to life.
Build it. Improve it. Keep moving forward. 💧🔧

07/07/2026

No shortcuts when it comes to keeping businesses comfortable. Today’s challenge: commercial ventilation repair under the Summer sun. Proud of the team for putting in the work! 💪☀️”

06/09/2026

This is what a month and a half of cottonwood exposure can do to your A/C system. 🌳❄️

A clogged condenser coil forces your system to work harder, reducing efficiency and increasing wear and tear.

Don't wait for a breakdown. Schedule your A/C maintenance today!
📞 630-392-5700
🌐 �
o-zonehvac.com

Your comfort is our business. We work hard to keep you happy!!

06/02/2026

06/02/2026

Another day another satisfied customer. Call for free estimates. 630.392.5700 check us out at O-zonehvac.com

05/15/2026

Hello and Happy Friday!

Don’t wait until your AC stops working on the hottest day of the year!

Regular AC clean & checks help your system run more efficiently, reduce energy costs, and extend the life of your equipment. Catching small issues early can save you from expensive repairs and unexpected breakdowns later.

A little maintenance now can save you time, money, and stress all summer long. If your system hasn’t been checked recently, now is the perfect time!

Contact us today to schedule your AC maintenance appointment and keep your home comfortable all season long.

P: 630-392-5700 or 630-520-1292
E: [email protected]

Looking for expert HVAC services? O-zone's certified technicians specialize in heating, cooling, ventilation, and refrigeration for homes and businesses. We offer fast, reliable repairs, installations, & maintenance for all major HVAC systems. From AC repair to furnace installation, we ensure comfor...

03/31/2026

Same home. Same vents. BIG difference.

See the impact a professional duct cleaning can make on your air quality... It is truly O-ZONE-amical!!😁

Cleaner, healthier air starts here!

New customers can book a $90 AC inspection (includes condenser)

Message us to schedule your appointment today!
Email: [email protected]
Call: 630-520-1292 or 630-392-5700

03/04/2026

New commercial exhaust fan installation. Call 630.392.5700 or visit www.O-zonehvac.com for inquiries.

02/24/2026

02/24/2026

Spent the day in training with Armstrong Air making sure we stay sharp and fully supported.
When you choose us for your HVAC system, you’re getting:

✔️ Certified installation
✔️ Direct manufacturer backing
✔️ Strong warranty support
✔️ A team that stays trained

Your comfort is an investment — and it should come with real support behind it.