Oct 2026
It’s a pleasure to provide a review for Mark Olis. Very reasonable job cost. Clean, efficient work! Mark is owner and does the work by himself. Couldn’t ask for a better HVAC service provider.
About Mark Olis HVAC Repair & Service
Mark Olis HVAC Repair & Service is a reliable and trustworthy business that provides prompt and professional service. They are extremely skilled, knowledgeable, and honest in their work. They offer fair pricing and are quick to respond to customer needs, even going above and beyond to ensure customer satisfaction. They take the time to explain each detail of the work needed and provide warranties on their labor. Whether it's a simple repair or a new system installation, Mark Olis HVAC Repair & Service is a top choice for all heating and cooling needs.
Reviews
Oct 2026
I had a great experience using Mark to inspect my hvac unit. I could tell he was very honest in his approach as he reviewed all suggested repairs. I then asked him to come and install a Google nest for me which he did very well. His prices are reasonable and I plan to continue using him for my furnace and AC unit maintenance.
Sep 2026
Great experience with Mark Olis! He was friendly, professional, and got the job done quickly. He explained everything clearly and made sure everything was working before he left. Really appreciate the great service and would definitely recommend him for HVAC work!
Photos
Hours
Monday 8AM - 8PM
Tuesday 8AM - 8PM
Wednesday 8AM - 8PM
Thursday 8AM - 8PM
Friday 8AM - 8PM
Saturday 8AM - 8PM
Sunday 10AM - 6PM
Good to know
- online estimates
- on-site services
Location
484 East Carmel Drive, Carmel, IN 46032
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