HVAC UV Light Installation

HVAC UV Light Installation

Ultraviolet germicidal lights are one of the most effective ways to eliminate biological contaminants inside your HVAC system. Installed in the air handler or ductwork, UV-C lights destroy bacteria, viruses, mold spores, and other microorganisms as air passes through — preventing them from circulating through your home and growing on your evaporator coil.

All Seasons Heating & Cooling installs HVAC UV light systems across the Fox Valley and DuPage County, including the Fox Valley, Wheaton, Batavia, Geneva, St. Charles, North Aurora, and South Elgin. We help you choose the right UV system for your air quality goals and install it for maximum effectiveness.

Our UV Light Services

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What Our Customers Are Saying

Sonia F.
All Season has been great. They always send professionals that will take care of our heating and AC. Al Ruiz-Serna did an amazing job. He was so polite and respectful. We called them again, because we were satisfied with their service.
Joan V.
We always receive exceptional and timely service from All Seasons ! Most recently our furnace motor went out and they worked to accommodate our schedule and get it fixed asap. Al, our technician was knowledgeable, professional, friendly, efficient and did a great job in getting our furnace working.
Rosa J.
I received service quickly. Joe was the installer and worked extremely hard to solve my issue. The service perform was done in a very professional way. I am extremely pleased with service provided by this company.
Kim C.
They arrived earlier than expected, were thorough, and completed the repair within a couple of hours. Highly recommend All Seasons Heating and Cooling for your HVAC needs!
Corey H.
Joe did a fantastic job. After thoroughly cleaning and testing the furnace he explained in detail the results of the testing and condition of our furnace. Highly recommend!!
Edward B.
Speedy, professional, reasonably priced, and most importantly did not give me a hard sell on an entirely new system. They did follow up with an offer to replace my aging HVAC, which I appreciate but finances being what they are now is not the time, and they respected that.
Maria L.
Outstanding Service! Highly recommend! Many thanks to the office and Joe! Honest guy that is so hard to find in the trades. I will continue to work with All Seasons. Thank you!
Craig S.
All Seasons has done it again! We had our routine furnace check up and were impressed by the professionalism, personality and expertise of the service representative that came to our home! Thank you again, All Seasons!
Amy B.
All Seasons is awesome! They came out right away on the one of the coldest days of the year to fix my furnace. If you have an HVAC issue, this is the company to call!
Julia G.
Wonderful service! We’ve used All Seasons for 25 years! Great service and very professional and courteous service people. Our service person Al explained everything he did and type of filters we needed. We will continue to use All Seasons.

How HVAC UV Lights Work

UV-C light (shortwave ultraviolet at 254 nanometers) has been used in hospitals and water treatment facilities for decades to kill pathogens. When applied to your HVAC system, it provides continuous disinfection in two key ways:

Coil-sterilization lights: Mounted near the evaporator coil inside the air handler, these lights run 24/7 to prevent mold and biofilm growth on the coil surface. The evaporator coil is dark, damp, and cool — the perfect environment for mold. A UV light keeps it clean without chemicals, maintaining airflow and system efficiency.

Air-sterilization lights: Mounted in the return duct or supply plenum, these lights treat the air as it passes through. They’re most effective against airborne bacteria, viruses, and mold spores. Higher-intensity models with longer exposure times provide better kill rates.

Many homeowners install both types for comprehensive protection — coil lights to keep the equipment clean and air lights to treat what’s circulating through the home.

Benefits of UV Light in Your HVAC System

Adding UV light to your HVAC system provides several measurable benefits:

  • Kills mold on the evaporator coil: Mold on the coil restricts airflow and reduces cooling efficiency. UV light eliminates it without chemical cleaning
  • Reduces airborne pathogens: UV-C light destroys bacteria, viruses, and mold spores as air circulates through the system
  • Eliminates musty HVAC odors: That “dirty sock” smell from your vents is usually mold on the coil. UV light eliminates the source
  • Improves system efficiency: A clean coil transfers heat more effectively, reducing energy consumption
  • Low maintenance: UV bulbs typically need replacement once a year — that’s it. No filters to change, no moving parts
  • Works with your existing system: UV lights install inside your current air handler or ductwork with no modifications to the HVAC equipment itself

We install UV systems from Honeywell, Carrier, Lennox, Fresh-Aire UV, and other leading manufacturers. Call All Seasons at 630-896-1934 or schedule a consultation to learn which UV solution is right for your home.

Cleaner Air, Cleaner System with All Seasons

UV light is a proven, low-maintenance way to improve your indoor air quality and keep your HVAC system running cleanly. All Seasons installs and services UV germicidal systems for homeowners across the Fox Valley.

Experience Prompt, Professional AC Repair Near Me

in the Fox Valley, you can’t wait until your AC quits. That’s why All Seasons Heating & Cooling offers 24/7 emergency repair services—because we know how important a cool home is to your comfort and safety. Whether it’s early morning or late at night, we’ll be there when you need us.

We’ve been in this business for over forty years and treat every home like ours. Our experienced team delivers quality results, clear communication, and long-term peace of mind with every service call. When you choose us, you get more than just a quick fix—a team dedicated to keeping your home cool and your family happy.

All Seasons Heating & Cooling

Frequently Asked Questions

How do I know if my AC needs repair?

You might notice that your AC isn’t cooling as effectively, making strange noises, or leaking water. If you’re experiencing any of these issues, call us for a thorough inspection.

We offer 24/7 emergency HVAC services, so if your AC breaks down, you can count on us to respond quickly and get it back up and running as soon as possible.

We provide extended warranties on our AC repair services, giving you peace of mind in case any issues arise after the repair.

Absolutely! Our technicians are certified and have experience working with all major brands, ensuring that a knowledgeable professional handles your AC repair.

Yes, we believe in transparency. Before we start any repair work, we’ll provide you with upfront pricing so you know exactly what to expect without any surprises.

Prevent future breakdowns with regular AC maintenance. If repair costs exceed 50% of a new system, it may be time to consider AC installation and replacement.

All Seasons Heating & Cooling proudly serves the Fox Valley and the entire Fox Valley. Visit our homepage to learn more about our family-owned company.

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