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See What Our Customers Have to Say -
131 Reviews

Peggy Neer
Located in Defiance
We also always get quick service from Cisco. Mike is always pleasant when he's here. Even our dogs like Mike.
Service: System Repair
Kristin Jenson
Located in St Peters
Service: System Repair
Gerry Schmitt
Located in O'Fallon
Fantastic job. Very knowledgeable and informative.
Service: System Repair
Larry Slape
Located in ST PETERS
Service was exceptional. Thanks
Service: Preventive Maintenance
Aurora Kneebone
Located in O Fallon
Mike quickly found the problem with the humidifier. Discussed options and completed the work. I love having Mike as a technician. He is courteous and professional yet super friendly. He listens well and explains what is going on with the equipment in an easy to understand way. Thank you!
Service: System Repair
George Drake
Located in St Charles
Located in St Peters
Great job - new A/C unit is 100x better than before.
Service: New System Installation
Located in St Peters
Great job - new system looks and operates wonderfully.
Service: New System Installation
Mary Beach
Located in St Charles
Leo listened intently to my request and questions and provided the solution efficiently and in a cordial manner. He cleaned up and was a super representative for your business!
Service: Preventive Maintenance
Theresa OBrien
Located in Dardenne Prairie
Mike is always professional, explains what he is doing, answers all questions
Service: System Repair
Betty Vasel
Excellent, FAST service! Leo was great and took the time to explain everything I needed to know. Luckily, it was just a defective thermostat and he quickly installed a new one. I'm no longer without heat!! Thanks again for being so reliable!
Service: System Repair
Mike McCullough
Located in OFallon
Mike was very good about explaining what he did and provided great service.
Service: Preventive Maintenance
Karen Wagner
Located in Ballwin
Anne McLeane
Leo is knowledgeable and polite. Great service!
Anne LcLean
Located in St Peters
Leo was very polite and very educated in his field.
Service: Preventive Maintenance
Arthur G Huggard
This company is the best at what they do. They know the systems they are working and stay with a job until it is complete. Honest and Completely Trustworthy. We use noone else. Highly Recommended
David S Ilges
I love their honesty. Mike is very knowledgeable and courteous. We purchased a heater and a/c unit from David ***** 3 years ago and it has had no problems. My gas and electric bill have gone down since that purchase.
Claudette Canon
We have used Cisco Heating & AC several times over the past five years. The owner, Dave, personally took our emergency call on a Sunday & was at our home within a few hours. We HIGHLY recommend Dave and his team for any type of heating or cooling needs a home would have. All of our needs have been handled in a timely, professional, honest and personable manner. Thanks, Cisco Team-you all do GREAT WORK!
Wesley Beigel
I have used Cisco Heating & AC for my 2019 annual heating/AC inspection and to install a gas line to my fireplace. For both jobs they had skilled and courteous employees. They provided great service, were on time, and a joy to work with. I highly recommend them and will use them for all my future work.
Ruth M Cox
I have used this company for the past 30 years and have never had an issue. They are courteous, punctual, helpful, informative and honest. I recently had an new ac/heating unit installed and Dave and his entire staff did an excellent job, following through with a slight issue and resolving it the next day. This is a wonderful company that I highly recommend.
Tom Toti
Annetta Honse
I would recommend Cisco to my friends and neighbors. Mike our tech was friendly as well as professional. He has serviced our furnace a few times now and is always willing to answer questions. Thanks Mike!
Richard Zuch
Service was timely and professional. Provided feedback and guidance for good maintenance.
Annabeth Lippincott
Cisco has been providing excellent, quality work, through our Maintenance Agreement with them for the last 15-20 yrs. We have had nothing but friendly, honest support throughout the yrs. and have highly recommended them to friends and neighbors. Mike, our Service Tech. for today, always makes us feel confident that our systems are in top working order. Thank you to the Cisco company and team!The Lippincotts'
Raymond E. Barker
Cisco's staff is great. Mike is very friendly and knows his stuff. Would recommend Cisco to anyone.
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