EMERGENCIES: 800-600-9292 REVIEWS FAQ’S CONTACT US [ HAVE AN EMERGENCY? ] DEALS RESIDENTIAL COMMERCIAL MAINTENANCE ABOUT SCHEDULE SERVICE Heating and Cooling Near St. Louis, Since 1965. For the best in heating and cooling, repair, and new installation, count on The Fleet That Can't Be Beat! SCHEDULE SERVICE Emergency With a fleet of 40+ rapid response trucks, we’re able to provide emergency HVAC service even after regular business hours. GET HELP Deals As an HVAC company, whatever your need, we offer you the best in value - products & services! Redeem a deal here. SAVE TODAY! Residential From new HVAC systems to repairs and routine maintenance, you can depend on Crystal to keep your family comfortable. LEARN MORE Commercial Count on us for new equipment or mechanical issues. We're commercial & light industrial heating and cooling experts! LEARN MORE Product Spotlight Consider a whole-house air purifier or a ductless mini-split system. 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! GET AN IWAVE Ductless Mini Split Systems Our ductless mini-split systems by Carrier will fit any space, any need, and utilization! LEARN MORE Join Our Care Club! What are the top benefits of keeping your HVAC equipment finely-tuned year around? BECOME A VIP Top Benefits Lower cooling/heating costs More comfort year-round Less risk of breakdown Less costly repairs A dependable system Much better air quality Read the 2021 Guide to A/C (R-22) Freon Replacement. 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! SUBSCRIBE HERE 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. ALL COMMERCIAL CLIENTS 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. SEE OUR REVIEWS 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 Just Researching? We Got You. Furnace Maintenance Checklist: Tips, Tricks, and More With an average temperature of 32.2 degrees Fahrenheit, most people can’t survive winter without a working furnace. Furnaces are a staple across the country and help keep our homes warm and comfy during the cold season. READ MORE 8 Signs You Need a Furnace Tune-Up Forced air furnaces heat most single-family homes in the United States (around 35 million). So if you have a furnace... READ MORE The Importance of HVAC System Maintenance for Your Home When was the last time you scheduled HVAC system maintenance? They run day in and day out, often without us even noticing how hard they work to keep us comfortable. READ MORE Heating and Cooling Near St. Louis. We've been serving St. Louis and surrounding counties, from St. Genevieve to St. Charles with fast, friendly, dependable residential and commercial HVAC products and services. We're The Fleet That Can't Be Beat! LEARN MORE ABOUT US Proudly Serving St. Louis since 1965. SCHEDULE SERVICE We have been providing heating and cooling services and products for residential and commercial customers in and around St. Louis since 1965. LEARN ABOUT US SUPPORT EMERGENCY SERVICE AIR CONDITIONING REPAIR FURNACE REPAIR HVAC DEALS AND REBATES SCHEDULE REPAIR OR QUOTE IWAVE AIR PURIFIER CONTACT US FINANCING OPTIONS SAVE WITH CARE CLUB SUBSCRIBE TO EMAIL RECENT POSTS Furnace Maintenance Checklist: Tips, Tricks, and More 8 Signs You Need a Furnace Tune-Up The Importance of HVAC System Maintenance for Your Home What Are the Health Benefits of Air Purifiers? CONTACT US All Emergencies call 1-800-600-9292 Festus Office 3 Cave Industrial Dr. Festus, MO 63028 1-636-937-2927 Farmington Office 141 Busenbark Dr. Farmington, MO 63640 1-573-431-5200 Washington Office 600 Washington Square Center Washington, MO 63090 1-636-900-9397 2021 © Copyright, Crystal Heating & Cooling. All Rights Reserved. Privacy Policy. Driven by C5 Stay connected: