• Contact Us
    Need To Schedule Service Or Thinking About An Upgrade To Your Heating And Cooling System? CALL US AT 618-372-8375 Would...
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  • Seasonal Coupons
    We Offer Senior Citizens And Military Discounts For Service And Installations.  Discounts, rebates, coupons, or offers cannot be combined but...
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  • Financing Options
    We Offer Financing With Approved Credit. Trane is offering Special Financing for 15 months with approved credit.  Please call us...
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  • Current Rebates
    Manufacturers and Utility Companies Offer Rebates For Upgrading To High Efficiency Heating And Cooling Systems.  Trane Has A Deal For You!...
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DenSon Cooling & Heating, Inc. is ready to handle your air conditioning and heating service & repairs, maintenance, and installations.

Our family of clients are found in your neighborhood!

24-7 Emergency Repair Service is available for all our clients from Maryville to Alton; from Jerseyville to Granite City.  We are here for YOU!  Any repair or service you need for your furnace, air conditioner, heat pump, air handler, boiler, or geothermal heat pump is just a call away!

We also provide additional services such as whole-house generator installation and service; & water heater installation–both tank and tankless. We install wood burning and gas log fireplace inserts & we provide full-service sheet metal fabrication.

We accept all major credit cards, checks, money orders, and cash payments.CreditCardLOGO


For major repairs and installations, we offer financing with approved credit.   To see if you qualify.  FINANCING

Call DenSon Cooling & Heating.  618-372-8375    You’ll be glad you did!

You Deserve The Best!

Cooling & Heating Services

Trane Comfort Specialist

DenSon Cooling & Heating, Inc. is your premier heating & air conditioning company.  Whether we’re repairing an air conditioner in Edwardsville or performing maintenance on a geothermal heat pump in Godrey, our clients count on DenSon Cooling & Heating.  Our service technicians are the best in the area. They’re background checked and drug tested before being hired, and once hired, they go through continuous training to make sure they are knowledgeable on all HVAC systems. You can rely on DenSon in the heat of the summer and in the dead of the winter!  Call us today to schedule your service or repair on your heating & cooling system.


Sales & Service

THE HEAT IS ON!  Is your air conditioner or heat pump not running like it used to?  Are you in need of a whole-house generator for those emergencies when your power is out?  DenSon can help!

Deciding to upgrade your indoor comfort system is a major purchase.  It’s a decison you’ll live with longer than when purchasing a new car.  A new high-efficiency heating and cooling system installed by DenSon Cooling & Heating  is a wise investment.  It will increase the value of your home while saving you money on energy bills month after month.  It literally pays for itself!

Use any of the quick links below to choose the service you need.


100% Customer Satisfaction

You Deserve Peace Of Mind And You’ll Get It With DenSon Cooling And Heating, Inc.

Whether we’re repairing your air conditioner or replacing your furnace, your satisfaction is guarantee!  We offer a 100% Money-Back Guarantee on everything we do.  For water heater installation, standby generators, or sheet metal fabrication; you can trust DenSon Cooling And Heating, Inc.


Enjoy The Comfort You Deserve!

trane-logoDenSon Cooling And Heating Has Earned Their Clients’ Respect!

Friendly, Informative, Competent, Professional.  These are how DenSon’s family of clients describe our technicans and office personnel.  That’s why Trane has authorized DenSon Cooling And Heating the Comfort Special Seal.

Call DenSon’s today for your air conditioner, furnace, standby generator, or water heater need.  You’ll Be Glad You Did!