Quality HVAC Services for Alton, Brighton & Jerseyville and Surrounding Areas
When it comes to indoor comfort, Den-Son Inc. Cooling & Heating leads the way in terms of service, products and workmanship. No matter the season, our team of heating, ventilation and air conditioning (HVAC) professionals will keep you comfortable, your air clean, and your heating and air conditioning system running smoothly.
Den-Son Is Your HVAC Contractor
We take pride in being honest, having personal relationships with our customers and keeping them comfortable. Customers refer people to us and buy from us because of our close generational ties. When you partner with Den-Son, you become part of a family. To learn more about our HVAC services, call today!
Air Conditioning Repair, Maintenance and Installation
- Load calculation
- Air conditioning system design and installation
- AC repair
- Air conditioning service
- Air conditioning maintenance agreements
In the event of an emergency, we offer 24/7 emergency services. If your system breaks down and compromises the comfort in your home, we will have one of our service technicians come out to you to fix the issue. We do not charge Maintenance Agreement customers an overtime fee.
Heating System Repair, Maintenance and Installation
- Heating system design and installation
- Heat pump, boiler, furnace and geothermal heating system repairs
- Heating maintenance agreements
- Free estimates on new installations
Need a second opinion on whether you actually need your equipment replaced? Den-Son will advise you for free! Contact us for reliable heating services today.
Indoor Air Quality
Don’t know where to start with boosting your indoor air quality? We can pinpoint your needs and help you choose the ideal solution for your home.
Ductless Air Conditioning
We offer a product guarantee for 30 days in case your system breaks, or the issue reoccurs after our service techs have fixed it. In this case, we will come back for free.
Sound too good to be true? Talk with our team of HVAC professionals to find out whether ductless is the right solution for you.
What People Are Saying
Den-Son is a very reputable and honest firm that provides what they promise, and they don’t cut corners. Scott H.
This service “DenSon” has been prompt & reliable for several years on my rentals. Wouldn’t trust anyone else! Shirley M.
We’re so happy with our new furnace. Wow! Is it quiet. Just like he promised. We would definitely recommend Den-Son! Google User
HVAC Info & Tips
The plumbing system in your Alhambra, Illinois, home is important for your health and well-being. Having hot water in your house is a necessity. When you don't have enough or none at all in your home, you want to know how to identify the problems and when to call a...
While the terms are often used interchangeably, smart thermostats and programmable thermostats are not the same. If you're stuck on deciding between the two for your Brighton, Illinois, home, here's a short guide to help explain the key differences.What Is a...
As commercial buildings are updated to improve energy efficiency, indoor air pollution is on the rise. Sealing your business against the weather saves you money on heating and cooling, but it can also trap contaminants indoors. Some pollutants cause health problems...
Have Questions or Need Service?
Call us today to schedule an appointment. We’re committed to your comfort and satisfaction, no matter what the weather brings. When you partner with Den-Son, you become a part of our family. Our service areas include Brighton, Alton, Jerseyville, Batchtown, Alhambra, IL and the surrounding areas.