211 E Elm St
Ofallon, MO 63366
636-978-7800

Local Reviews

Rated 4.9 out of 5 stars based on 200 customer reviews

Great customer service

Chris did an outstsanding job.

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Great service

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Awesome service

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Great crew made sure everything running smoothly.

Best hvac company in St.Charles county. Every technician is personable and take the time to explain why and what in a friendly manor I HIGHLY RECOMMEND them to all my neighbors and friends.

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Great job, great service!

Replaced entire HVAC system, great service and follow up, very respectful to my property.

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An HVAC Company with Integrity

We have used Swiss Air for over 15 years. They have replaced 2 furnaces for us and they absolutely stand behind their slogan of....."IT'S FIXED RIGHT OR IT'S FREE". We had an issue with one 'expensive' repair, It took several service calls to get the mystery solved, and we were only charged for the cost of the actual repair that fixed the problem which was less expensive than originally suggested. The service people are extremely knowledgeable, highly professional, and curteous. They treat my home as if it were their own including being nice to the dog and donning white shoe covers before entering the house.

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Always Friendly and Professional

The office staff and technicians are always very friendly and professional. They provide great service and great products. I would recommend them to everyone.

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Great set ice

Chris was very professional and new right away what the problem was. Our heat was not working and we have a newborn, thanks for quick response!

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Fantastic Fall Maintenance

Swiss Air guys are always great! Very clean and knowledgable. Super nice.

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Customer

Excellent service.

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Job Locations

Chris W.

Chris W. Job Checkin

Performed fall maintenance on a Marathon furnace in O Fallon, MO.


Chris W.

Chris W. Job Checkin

Ofallon service call on Lennox furnace

Ofallon service call on Lennox furnace

Chris W.

Chris W. Job Checkin

Performed fall maintenance on a Kelvinator furnace in St Charles, MO.


Chris W.

Chris W. Job Checkin

Performed fall maintenance on a Marathon furnace in St Charles, MO.


Chris W.

Chris W. Job Checkin

Quote for a flue pipe repair/replacement in O Fallon, MO.


Kris O.

Kris O. Job Checkin

New Furnace, Evaporator Coil and Air Conditioner quoted with Complete Ductwork System


Theodore L.

Theodore L. Job Checkin

Furnace and humidifier installation.


Chris W.

Chris W. Job Checkin

Performed fall maintenance on a Sure Comfort furnace in Troy, MO.


Chris W.

Chris W. Job Checkin

Chesterfield mo service Lennox furnace

Chesterfield mo service Lennox furnace

Chris W.

Chris W. Job Checkin

Chesterfield mo service Lennox furnace

Chesterfield mo service Lennox furnace

Chris W.

Chris W. Job Checkin

Performed fall maintenance on a Kelvinator furnace in Florissant, MO.


Chris W.

Chris W. Job Checkin

Performed fall maintenance on a York furnace in Ballwin, MO.


Chris W.

Chris W. Job Checkin

Commercial Carrier rooftop unit fall maintenance in Ballwin, Mo

Commercial  Carrier rooftop unit fall maintenance in Ballwin, Mo

Chris W.

Chris W. Job Checkin

St.charles mo service on sure comfort and repair humidifier.

St.charles mo service on sure comfort and repair humidifier.

Chris W.

Chris W. Job Checkin

Performed fall maintenance on a Carrier furnace and flushed A.O. Smith water heater.

Performed fall maintenance on a Carrier furnace and flushed A.O. Smith water heater.