Standby Generators Installation for Alton, Brighton & Jerseyville and Surrounding Areas

From flooding to tornadoes to ice storms, Mother Nature throws plenty of powerful curveballs that can wipe out electricity in the area. A standby generator protects your home and business through hours or days without power. As a certified Kohler Generators dealer, Den-Son Inc. Cooling & Heating sells and installs top-rated whole-house and small-business backup generators.

Generator connected to house

Our team is specially trained to help you choose the right system for your needs, whether you want full coverage or just the essentials. It’s the comfort you deserve.

Choosing a Backup Generator

Even if you’ve done some research on standby generators, you may not be sure what size to buy or which features and accessories you want. Our certified professionals will walk you through the process, analyzing your needs and answering your questions until you feel ready to make a decision. Whether you need a reliable power supply for medical equipment, a sump pump, special computer systems or you just want to save your frozen goods; we have the right unit.

Our generators can be fueled by either natural gas or propane. Real-time online management is available for peace of mind when you’re away.

Full-Service Generator Installation

Generator installation isn’t a DIY job. From site selection to electrical hook-ups, Den-Son has the experience to handle residential and commercial jobs from start to finish. We’ll take care of any needed permits, recommend the best placement for the outdoor unit, coordinate with a licensed electrician and handle the fuel connection. After the generator installation is finished, we’ll show you how to take care of the equipment and explain how everything works when the grid power goes out.

Generator Maintenance

When you protect your Alton, Brighton and Jerseyville area home or business with a backup generator from Den-Son, you can expect an industry-leading five-year warranty and exceptional service. We want you to get decades of use out of the equipment, so we provide a scheduled maintenance plan to help you keep the generator running when you need it. You can count on us.

Personal Touch from Den-Son

Den-Son has been serving Southwest Illinois for nearly 50 years. We know that happy customers refer their friends and family, so you can trust us to treat you right. We offer a 100 percent satisfaction guarantee, free estimates on new installations and a lightning-fast response time when you have a question or concern.

Contact us today to find out how a standby generator can protect your household, property or business. You deserve the best. You deserve the Den-Son touch.

Your Comfort Matters to Us

Let the Pros at Den-son Take Care of Your HVAC Needs

Schedule an Appointment

We Proudly Serve the Following Areas

  • Alton, IL
  • Bethalto, IL
  • Brighton, IL
  • Bunker Hill, IL
  • Carrollton, IL
  • Chesterfield, IL
  • Cottage Hills, IL
  • Dorsey, IL
  • DOW, IL
  • East Alton, IL
  • Godfrey, IL
  • Grafton, IL
  • Hartford, IL
  • Jerseyville, IL
  • Kane, IL
  • Medora, IL
  • Piasa, IL
  • Roxana, IL
  • Shipman, IL
  • South Roxana, IL
  • Staunton, IL
  • Wilsonville, IL
  • Wood River, IL
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