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

Local Reviews
for o'fallon, mo

Rated 4.9 out of 5 stars based on 100 customer reviews

Must Use Company

Fast, with so many financing options. Incredible equipment at a phenomenal price. If you’ve been waiting to do your HVAC and water heat, DON’T wait anymore. Use Swiss Air, and ask for Chris Wollenburg.

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Don't go anywhere else

Swiss Air has been absolutely awesome since I bought my system 18 months ago. Would recommend to anyone.

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Great Service!

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Chris was great just like your whole team

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Great technician, Great Service, Quick response

Technician was very knowledgeable and very helpful. I have a very old unit and I will request him in the future when I need to replace my furnace and AC unit. He helped me get it up and running for the time being. I appreciate the fact that he came so quickly to my home as it was the same day as I called. My technician was also very friendly which I really appreciated. I felt he was honest. He worked quickly to asess the problem and explain everything to me. He was very thorough in the process. I am very pleased with the service.

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Wonderful service , they are careing and they have great information and talent that is spectacular ! Love the service will stay with them many years

We are very pleased with the service and they are very knowledgeable in all areas of their field ! Love the service !

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Love their fast, professional service

I had what turned out to be a very minor problem, but Swiss Air acted very ptomptly. I called at 8:45 in the morning and the tech was at my door by 9:45 am. He assessed the situation and my issue with the heating system was cleared up in 10 minutes. I am relieved that the problem is taken care of and I am ready for the rest of the day with this taken care of Thank you Swiss Air!

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Great service

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Excellent Service!

We were referred to Swiss Air on a very cold night when we found our heat was not working when we arrived home. Swiss Air was awesome! Their technician Ted came out late and was very happy to help us in the situation. Another technician came out the following day to complete the repair. They called ahead and were here when they said they would arrive. Can't thank Swiss Air enough for assisting us in this difficult weather.

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Great

Very good

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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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Fantastic Fall Maintenance

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

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Job Locations
for o'fallon, mo

Chris W.

Chris W. Job Checkin

Saint Charles, Clean and check furnace, duct cleaning, and humidifier service.


Chris W.

Chris W. Job Checkin

No cool O’Fallon mo

No cool O’Fallon mo

Chris W.

Chris W. Job Checkin

O’Fallon clean and check


Chris W.

Chris W. Job Checkin

Ofallon service


Chris W.

Chris W. Job Checkin

Ofallon no hot water service call


Chris W.

Chris W. Job Checkin

Ofallon no cool on heil ac


Chris W.

Chris W. Job Checkin

Ofallon service replace evap coil


Chris W.

Chris W. Job Checkin

Ofallon service ac frozen

Ofallon service ac frozen

Chris W.

Chris W. Job Checkin

Ofallon clean and check on ac

Ofallon clean and check on ac

Chris W.

Chris W. Job Checkin

Ofallon AC not working froze up.

Ofallon AC not working froze up.

Chris W.

Chris W. Job Checkin

Ofallon clean and check on ac


Chris W.

Chris W. Job Checkin

Ofallon clean and check on a ruud ac


Chris W.

Chris W. Job Checkin

Ofallon ac frozen up


Chris W.

Chris W. Job Checkin

Dardenne Prairie tankless water heater

Dardenne Prairie tankless water heater

Chris W.

Chris W. Job Checkin

Larressa Crawford

Larressa Crawford