C-N-O Comfort Zone Heating & Cooling

8 reviews

+1 (636) 209-5087

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145 N Service Rd

Saint Peters, MO 63376

+1 (636) 209-5087

https://www.cnocomfortzone.com

CNO Comfort Zone Heating and Cooling provides heating, air conditioning, indoor air quality system and garage heater services to the St. Peters, MO, area.

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Reviews

5.08 reviews

Robert Z.

4/21/2025

We began having CNO do our furnace and A/C maintenance and repair work prior to COVID (approximately 7 years ago), and were very pleased with their dependability and how they went out of their way...

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Linzel H.

2/16/2025

Having needed C-N-O's service again, we highly recommend Charles and company for all your hvac needs!

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Kelly H.

1/31/2025

CNO are the only ppl I trust to service my seasoned HVAC system. Reliable and honest. When I finally cave and decide to replace her I will go with them over any other service provider.

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John D.

9/9/2020

It's time for annual furnace maintenance! I was setup with C-N-O through an online service and I set up an appointment via text. The day of the service, I got a text from Tyler, the technician,...

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Rob B.

2/15/2020

Our furnace went out (after 30 plus years) and C-N-O gave me an incredible rate for a new furnace, humidifier, and air conditioner. Their team of professionals installed in the next day and it...

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