UV Germicidal Lights

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HVAC UV Light Service in San Gabriel Valley, CA

Want to make your home’s air safer from unseen threats? Consider the power of UV germicidal lights. Call Cypress Air at 626-963-9810 for installation details in San Gabriel Valley and nearby service areas.

These specialized lights, often integrated into your existing HVAC system, work to combat airborne microorganisms. By emitting ultraviolet (UV-C) radiation, they disrupt the DNA of bacteria, viruses, and mold spores as they circulate through your ductwork.

Imagine a system actively working to reduce harmful pathogens within your airflow. With UV germicidal lights, you can take a significant step towards a healthier home environment. Breathe with greater peace of mind knowing that invisible threats are being addressed throughout your house.

UV germicidal lights are a powerful tool for improving indoor air quality by targeting and neutralizing airborne germs directly within your HVAC system. Installed inside your ductwork or near the system’s coils, these lights use ultraviolet (UV-C) energy to disrupt the DNA of bacteria, viruses, and mold spores—effectively preventing them from multiplying and spreading through your home.

We install and maintain high-efficiency UV germicidal lights that work continuously to sanitize the air moving through your HVAC system. These systems don’t just filter particles—they actively destroy biological contaminants that traditional filters might miss.

  • Coil Sterilization Lights – Mounted near the evaporator coil, these UV lights prevent mold and microbial growth on the coil surface, which can help improve system efficiency and stop mold spores from circulating through your home.
  • Air Sterilization Units – Installed within the air handler or ductwork, these systems disinfect moving air as it passes through the HVAC system. This helps reduce the presence of airborne viruses and bacteria throughout your home.

Unlike standard air filters, UV germicidal lights are designed to kill, not capture. They’re ideal for homeowners concerned about indoor germs, especially in homes with allergy sufferers, pets, or high humidity. When combined with routine HVAC maintenance, UV lights offer year-round protection for your air and peace of mind for your family.

Do UV-C germicidal lights really work, or are they just another air-cleaning gimmick? At Cypress Air, we understand the skepticism. That’s why we rely on proven UV-C technology that’s backed by science—and supported by real results in real homes. We’ve installed these systems for countless Southern California homeowners, and the feedback has been consistently positive.

Here are just a few of the benefits customers have experienced:

  • Kill Airborne Germs – UV-C light targets microscopic threats like influenza, cold viruses, and mold spores, reducing the risk of illness and respiratory irritation.
  • Stop Mold Growth in HVAC – When placed near the evaporator coil, UV lights prevent mold and biofilm from forming on damp surfaces, helping your system run cleaner and more efficiently.
  • Reduce Allergens and Odors – By breaking down organic particles, UV-C light can help reduce allergy triggers and eliminate musty or stale odors caused by bacteria or mold.
  • Disinfect Without Chemicals – UV germicidal lights sanitize the air without producing ozone or using any harsh chemicals—just light, quietly working around the clock.
  • Support HVAC Efficiency – A cleaner system runs more smoothly and lasts longer, which can lead to fewer repairs and lower energy use over time.

As a Lennox Premier dealer Cypress Air proudly installs Lennox’s high-quality UV-C germicidal lights as part of their trusted indoor air quality lineup. We also offer UV solutions from other leading brands like Carrier and AprilAire—so no matter your system or setup, we can match your home with the right germ-fighting technology.

Your comfort is our priority. If something doesn’t feel right after we’ve installed your germicidal UV-C lights, contact us—we’ll make it right. Our service manager will follow up promptly to ensure you’re satisfied with the results.

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Customer Reviews

Our Customers Love Our Service . . Here’s Why

  • The job was promptly done

    Cypress Heating & Air texted that the technician was on his way, including a photo of him. Joshua arrived on time and replaced the filter for the furnace; necessary after the big Eaton fire. He inspected the system and used the blue booties over his shoes.
    MG in Pasadena, CA

  • Professional and on time

    Just had service from Joshua for my annual maintenance. He was very professional and did an excellent job. Would highly recommend him and Cypress. I have been a customer for over three years.
    Deborah in Glendora, CA

  • The technicians are great

    We have used Cypress for a few years now. We had an issue with our A/C and Joshua did a thorough inspection, was able to troubleshoot the issue and our A/C was up and going in no time. Great experience and service!
    James in Los Angeles, CA

  • Fast and efficient

    I had called the company that originally installed my mini-split system and they told me that I would have to wait for a month for an appointment. I called Cypress heating and they were here in two days. They took care of my issue and now I’m a loyal maintenance member.
    Luz in Arcadia

  • Made everything easy

    Got my second service from Cypress so they could check my heater as the winter cold sets in. Joshua did an excellent job. Came right in the time window agreed upon, gave me some good practical information on my unit, replaced the filter, and was able to make sure the system was running correctly.
    Pat in Monrovia, CA

  • Reliable and long-lasting

    Cypress Heating & Air has grown since I first meet Bob in 1994 and I see their trucks and vans everywhere. I still receive the same great service and look forward to continuing using Cypress Heating & Air for years to come.
    Mary in West Covina, CA
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Key Differences: UV Germicidal Lights vs Whole-House Air Purifiers

Considering how to improve your home’s air quality? Ultraviolet (UV-C) germicidal lights and air purifiers offer different benefits for a healthier indoor environment. UV-C lights target airborne microorganisms. Air purifiers filter out particles. To help you understand how each addresses indoor air quality, we’ve created a clear comparison of whole-house air purifiers and UV germicidal lights.

Feature UV-C Lights Air Purifier

Mechanism & Installation

HVAC integrated. UV-C light inactivates microorganisms in circulating air. Effectiveness depends on bulb and airflow.

HVAC integrated. Filters trap particles/some gases as air circulates. May use ionization (ozone risk).

Particle Removal

Does not remove particles.

Effective with high-MERV filters for whole-home particle removal.

Microorganism Removal

Kills/inactivates airborne bacteria, viruses, mold in the HVAC system. Effectiveness varies with exposure.

Traps but doesn’t always kill. Some have integrated UV.

Gas & Odor Removal

Carbon filters can reduce some odors/VOCs. Standard filters don’t.

Generally ineffective against gases/odors. May worsen some VOCs.

Coverage

Treats air circulating through HVAC. Effectiveness in rooms depends on airflow.

Treats air throughout the entire home via the HVAC system.

Safety

UV-C harmful to skin/eyes (duct installation minimizes risk). Some produce ozone.

Generally safe with proper installation. Some ozone risk. Filter disposal important.

Maintenance

Periodic UV bulb replacement.

Regular filter replacement.

Benefits

Reduces circulating airborne microorganisms. May help prevent HVAC mold.

Whole-home particle/allergen reduction. Potential odor/VOC control.

Drawbacks

No particle removal. Effectiveness depends on airflow. Potential ozone. Bulb replacement cost.

Higher initial cost. Ongoing filter expense. Gas/VOC control depends on filters.

Ideal Use

Homes/buildings with central HVAC seeking to reduce airborne infections and control HVAC mold. Often used with filtration.

Comprehensive air purification for homes with central HVAC, especially for allergy/asthma.

Uncertain about the best product to purify your home’s air? If your priorities include reducing airborne infections and controlling HVAC mold throughout your entire home, UV germicidal lights might be the better solution. Contact us for an expert consultation.

Same-Day HVAC Service

When your heating or cooling system breaks down, waiting isn’t an option. That’s why we offer Same-Day HVAC Service to get your home or business back to comfort fast. Whether it’s a sudden AC failure in the summer or a furnace issue in the winter, our expert technicians respond quickly to diagnose and fix the problem. With fast, reliable service, you won’t have to suffer through extreme temperatures.

Satisfaction Guaranteed

Your comfort is our top priority, which is why we stand behind our work with a Satisfaction Guarantee. Whether it’s a repair, maintenance, or a full system installation, we’re committed to getting the job done right. If you’re not completely satisfied, we’ll make it right—no hassle, no stress. With our expert team and dedication to quality service, you can have peace of mind knowing your HVAC system is in the best hands.

Family-Owned & Operated

As a family-owned and operated business, we treat our customers like family. For generations, we’ve built our reputation on trust, quality, and personalized service. Unlike big corporations, we take the time to understand your needs and provide honest, reliable HVAC solutions. When you choose us, you’re supporting a local business that truly cares about your comfort and satisfaction.