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Heating and Cooling In St. Louis, Since 1965.

Crystal Swift Savings

For a limited time, save up to $2,750 in combined rebates when purchasing new HVAC equipment.

Enter to Win!

Enter to win four (4) tickets to the New York Yankees at St. Louis Cardinals baseball game on Friday, June 30, 2023, at 7:15 PM.

HVAC Products and Services

We're a full-service heating and cooling company, proudly serving St. Louis and surrounding areas with AC and furnace repair, new installation, air duct cleaning, and more.  Browse our services and products below or request a free onsite estimate.

Emergency Repair

We can provide emergency HVAC service with a fleet of 40+ rapid response trucks.

AC Tuneup

For the best AC Tuneup in St. Louis, call the Fleet that Can't Be Beat.

AC Repair

AC not blowing cold air, making a noise, or not turning on?  We can help.

AC Installation

Need new AC installation or replacement? Fast, friendly services.

Furnace Repair

Furnace not working?  Hearing strange noises?  Smelling gas?  Contact us.

New Equipment

We carry Carrier ACs,  Heat Pumps, Fan Coils, Gas Furnaces, and more.

Commercial Support

Count on us for new commercial or industrial equipment & mechanical issues.

Ductless HVAC

Want to lower your energy bills or add AC or Heat in a single room?  We got you.

Air Duct Cleaning

Is the airflow in your home weak?  Dust building up?  Filters clogged?

Air Purification

Breath clean air and protect your family from air contamination in your home

What's New at Crystal?

HVAC Maintenance Plans

Keep your HVAC system running its best 24x7x365 with our new HVAC maintenance plans. Receive priority service,  up to 15% discounts on repairs & parts, priority scheduling & more.

Indoor Air Quality Products

Our Indoor Air Quality products and services will create a healthier home environment.  From creating fresher air to removing the humidity and more, we can help! Save for a limited time.

HVAC Maintenance

Save by joining our Care Club.  What are the top year-round benefits of enrolling in HVAC Maintenance?


Top Benefits

  1. Lower energy costs
  2. Comfort year-round
  3. Less risk of breakdown
  4. Less costly repairs
  5. A dependable system
  6. Much better air quality

Product Spotlight

Whole House Air Purifier (new)

Are you breathing in allergens, dust, smoke, mold, or even viruses (Covid-19) in your home's air? Breath clean air with iWave!

Ductless Mini Split Systems


Our ductless mini-split systems by Carrier will fit any space, any need, and utilization! Bring any space to life!

It's Official; We've Gone Green!

Proud to be a Carrier Factory Authorized Dealer.

You can trust us with all your heating and cooling needs, and in Carrier with your comfort.

We're a 5-Time Winner 2014, 2015, 2017, 2018 & 2022

We're a 5-Time Winner
2014, 2015, 2017, 2018 & 2022

Stay Connected With Email

As an HVAC company serving St. Louis and surrounding cities, you'll benefit from our latest deals, product announcements, important service notifications, latest blogs, and more. Your email is safe with us so subscribe today and be in the know!

Valued Commercial Clients We Serve

As a commercial HVAC company, we've been delivering the most dependable repairs, new Carrier product installation, and maintenance to thousands of businesses across St. Louis and surrounding cities. So when you need the best team to get the job done, count on Crystal.

Bob's Discount Furniture
Busch Stadium

We Love Our Customers

As an HVAC Company, we strive every day to provide the very best products and services to every valued customer we're privileged to serve.

You Can Count On Our Experience

What we've done in the last 7 years alone.

Trouble Calls Service Department Ran
Homes We Installed Equipment
Businesses We Installed Equipment
Positive Reviews from Customers

Locations in Festus, Farmington, and Washington, MO

With locations from Farmington, MO, to Washington, MO, and over 40 rapid response trucks ready to serve, we proudly cover the entire St. Louis metropolitan area and service all makes and models.

Just Researching? We Got You.

Proudly Serving St. Louis since 1965.