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Warm People.
Cool Ideas.

Quality Solutions.

  • 2-Year 100% Satisfaction Guarantee
  • Family Owned Since 1989
  • Lifetime Repair Warranties with USA Club Membership

Comprehensive HVAC Services in O’Fallon, MO

If you’re trying to find comprehensive HVAC services for your home, then you can end your search with the Swiss Air Heating & Cooling, LLC team. We’re here to provide you with the absolute best heating, air conditioning, indoor air quality, and water heater services. We even do commercial work. Each member of our team, from customer care specialists to technicians, are highly-trained and ready to provide top-quality work.

  • Family-owned since 1989
  • Best trained technicians in O’Fallon, MO
  • Experts in our field

Whatever you do, don’t wait for your HVAC services in O’Fallon, MO. If you want the best HVAC services possible, then you should be proactive when it comes to scheduling them. You can trust us to get the job done right.

Contact us today. Warm People Cool Ideas Quality Solutions.

We Have Fun While Getting the Job Done.

The Customer Knows Best

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He Gao, Yesterday

I recently had 2 complete HVAC system replaced. Everyone at Swiss Air I interacted was friendly and professional, from the operator, scheduler, to sales,...

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Lam Lund, This week

Excellent customer service

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Nancy Cavazos, This week

I've use Swiss Air for over 15 years and Ron, the owner runs and great company, and all his employees are so upbeat and positive just like Ron is! All...

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Let’s Start Your Project

After we get some info from you, we’ll set up a time to discuss your project in further detail.
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We Do It All With A 2-Year 100% Satisfaction Guarantee

Air Conditioning

We provide high-quality air conditioning services in O’Fallon, MO. Your home’s air conditioning needs might be vastly different than the needs of your next door neighbor. We make sure to provide plenty of options for air conditioning services to address this. We work on classic central air conditioners, heat pumps, ductless systems, and Wi-Fi and smart thermostats too.

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Staying warm shouldn’t need to be a full time job. Things become easy when you have a high-quality system installed by a professional technician. If you want a furnace, a ductless system, or a heat pump, then we’re here to provide the services you need. We install, replace, repair, and maintain any heating system you might have.

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Indoor air Quality

Your indoor air quality services matter in your home. You really can’t get a truly comfortable and energy-efficient home with great IAQ. If you want great duct services, air filters, air purifiers, humidifiers, dehumidifiers, HRV systems, or even ERV systems, then make sure that you get in touch with our team members.

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Water Heater

Your water heater is one of the hardest working appliances in your home. It’s the backbone behind your shower, your sinks, your dishwasher, and even your laundry machine. If you don’t have a great water heater now, we can help you get set up with one. We work on traditional hot water tanks and tankless water heaters. We even work on heat pump water heaters!

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Commercial HVAC

We understand that you’re not just trying to stay comfortable at home. You want to have comfort for your business too. Commercial spaces need high-quality comfort which is why we provide commercial air conditioning, commercial geothermal, commercial heating, and commercial indoor air quality services. We can help with server room cooling too. We’re here to help with your installation, repair, replacement, and maintenance services.

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You need to maintain every single system that you’ve got going in your home. Maintenance is like working out, eating healthy, and maintaining a balanced life but for your home’s HVAC system. It’s important to maintain every aspect of your home because your HVAC system is an ecosystem. We’re going to help you keep every part up to standard.

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USA Club

Save with Regular Maintenance

Protect Your Investment with Our Ultimate Savings Agreement

  • 20% discount
  • Priority repair service
  • Lifetime repair warranty
  • High performance tune-ups

Serving St. Charles & St. Louis county

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