HVAC Repair Chicago IL | Call All Temp Heating & Air Conditioning
4363 W Montrose Ave, Chicago, IL 60641
Business Background
Founded in 1938 by Walter Mehrholz, All Temp Heating & Air Conditioning is a family-owned Chicago institution now led by his grandson, Robbie. For over 80 years, we've built our reputation on a handshake and a promise, providing honest, reliable HVAC service to generations of local families. As a hands-on owner, Robbie upholds his grandfather's commitment to 100% customer satisfaction and a Best Price Guarantee on all heating and cooling equipment. From our early days as a Bryant dealer, we've grown to expertly install, maintain, and repair a wide range of brands, offering tailored solutions for Chicago homes and businesses. Our story is one of family, trust, and deep roots in the community we're proud to serve.
Questions and Answers
What does your NATE-certification mean for my HVAC installation in Chicago?
Our NATE-certified technicians have proven expertise in HVAC system design and installation, which is crucial for our climate. We ensure your new furnace or AC is sized and installed correctly for your Chicago home, maximizing efficiency and comfort while minimizing future repair needs from improper installation.
My Chicago home's AC isn't cooling well. Could it be a clogged filter or drain line?
Absolutely. Clogged air filters and condensate drain lines are common issues in our area, especially during high-use seasons. Restricted airflow from a dirty filter makes your system work harder, while a clogged drain can cause water damage. During our maintenance visits, we thoroughly check and clear these components to prevent breakdowns and improve efficiency.
As a family-owned business since 1938, how do you handle emergency repairs?
Our family has been answering Chicago's emergency calls for decades. We offer 24/7 emergency service because we understand a broken furnace in winter or a failed AC in summer is urgent. You'll reach our local team directly, and we dispatch our own NATE-certified technicians—not subcontractors—to diagnose and repair your system promptly and reliably.
What the Company Handles
- HVAC system maintenance
- HVAC installation or replacement
- HVAC system repair
Business Location & Hours
| Mon: | Open 24 hours |
| Tue: | Open 24 hours |
| Wed: | Open 24 hours |
| Thu: | Open 24 hours |
| Fri: | Open 24 hours |
| Sat: | Open 24 hours |
| Sun: | Open 24 hours |
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