Installing a UV light in your HVAC system usually costs between $300 and $1,200. The price depends on the type of UV light you choose, how easy it is to install, and how your HVAC system is set up.
Many homeowners add UV lights to improve indoor air quality, reduce mold growth, and keep key HVAC parts cleaner. If you’re thinking about adding one, understanding the cost and what affects it can help you decide whether it’s a good fit for your home.
Average Cost to Install a UV Light in an HVAC System
The average cost to install a UV light in an HVAC system falls between $500 and $900. This price usually includes both the UV light unit and professional installation. Simpler systems cost less, while whole-home UV air purification systems sit at the higher end of the range.
Here’s a quick cost breakdown to make it easier to understand:
- Low-end systems: $300–$500 for basic UV lights with simple installation
- Mid-range systems: $500–$900 for higher-quality units with standard installation
- High-end systems: $900–$1,200 for whole-home or advanced UV air purification systems
The final cost depends on the type of UV light you choose and how complex the installation is for your HVAC system.
Cost Breakdown: UV Light Unit vs Installation
The total cost comes from the UV light unit itself and the installation labor. Understanding both parts helps explain why prices can vary so much.
The UV light unit usually costs between $150 and $700, depending on the type and quality. Single-bulb UV lights are more affordable, while dual-bulb or high-output systems cost more. Coil-focused UV lights tend to be less expensive than air-sterilizing systems that treat the air moving through your ducts.
Installation labor typically ranges from $150 to $500. The cost depends on how easy it is to access your HVAC system, where the UV light is installed, and whether any electrical work is needed. Most installations take about 1 to 2 hours to complete.
Factors That Affect UV Light Installation Cost
The cost to install a UV light in your HVAC system depends on several key factors. These details affect both the price of the unit and the amount of labor needed for installation.
The type of UV light matters, since coil lights usually cost less than air-sterilization systems. Your HVAC system’s size and layout can also affect pricing, especially if access is limited. Installation location plays a role, too, as placing a light in ductwork may require more work than installing it near the air handler.
Electrical access, wiring needs, brand quality, and bulb lifespan can all influence the final cost. Homes with older systems or tight spaces may need extra labor, which can increase the total price.
UV Light Cost by Type
UV light costs vary based on the type you choose. Some options focus on protecting HVAC components, while others treat the air moving through your system.
Coil UV Lights
Coil UV lights typically cost between $300 and $600 installed. These lights are placed near the evaporator coil to prevent mold and bacteria from building up. They’re one of the most affordable UV options and are commonly used to protect the system, improve efficiency, and reduce odors caused by microbial growth.
Air Sterilization UV Lights
Air sterilization UV lights are the higher-cost option. These systems usually cost $700 to $1,200 installed.
They’re designed to treat the air as it moves through your HVAC system, not just the components. This helps reduce airborne bacteria, mold, and odors throughout the home. Because they provide broader indoor air quality benefits, air sterilization UV lights are often chosen by homeowners with allergies, pets, or high humidity levels.
Is UV Light Installation Worth the Cost?
For many homeowners, UV light installation is worth the cost. UV lights help control mold, bacteria, and odors inside the HVAC system, making them a popular option for improving indoor air quality and keeping HVAC components cleaner and more efficient.
UV lights are especially helpful for people with allergies, homes with high humidity, households with pets, and older HVAC systems that are more prone to microbial growth. For these situations, the added protection and cleaner airflow often justify the investment.
UV Light Maintenance and Ongoing Costs
UV lights have low maintenance and ongoing costs. Most UV bulbs last about 9 to 12 months and typically cost $50 to $150 to replace.
They also use very little electricity, so the impact on your monthly energy bill is usually minimal. With simple annual bulb replacement, UV lights continue to work effectively without much upkeep.
DIY vs Professional UV Light Installation Cost
Professional UV light installation is usually worth the extra cost. While DIY kits may seem cheaper upfront, improper placement or wiring can reduce effectiveness or even damage your HVAC system.
A professional installer ensures the UV light is positioned correctly, wired safely, and working as intended. Professional installation can also help protect your HVAC warranty and give you peace of mind that the system is installed properly.
Can a UV Light Lower HVAC Repair Costs?
Yes, a UV light can help lower HVAC repair costs over time. By keeping coils clean and preventing mold buildup, UV lights help maintain proper airflow and system efficiency.
Cleaner components reduce strain on the HVAC system, which can lead to fewer breakdowns and less frequent maintenance. Over time, this can help extend system life and reduce the need for costly HVAC repair.
Does Insurance or Warranty Cover UV Lights?
UV lights are usually not covered by homeowners’ insurance. Most policies don’t include add-on air quality equipment.
That said, many UV light manufacturers offer warranties on the unit and the bulbs. Having the UV light professionally installed can also help protect your HVAC system warranty by ensuring the system isn’t damaged during installation.
Final Cost Summary and What to Expect
Installing a UV light in your HVAC system typically costs between $300 and $1,200. The final price depends on the type of UV light you choose and how complex the installation is.
While it’s an added expense, many homeowners feel the improvement in air quality, reduced mold buildup, and cleaner HVAC components make it worthwhile. If indoor air quality or mold prevention is a concern, a UV light can be a practical and effective upgrade for your HVAC system.
