How much does it cost to install UV light in an HVAC system?

Installing a UV light in an HVAC system is priced after an on-site evaluation; final cost is confirmed once we assess your equipment and installation access. Most of the price comes from the lamp type and how hard it is to mount and power it.

A UV system is typically chosen to treat the coil or the moving air, and the right setup depends on your duct layout and service clearance. In our Franklin-area installs, tight furnace cabinets and limited electrical access are the usual variables that change the quote. As a technician note, when the coil is buried or the cabinet is insulated, we may use a remote ballast and a small service port so future bulb changes take minutes, not hours. Every install comes with our 2-year warranty, with four years for Club Members.

To shape your quote, we look at:

• Coil-only vs in-duct (airstream) configuration
• Single vs dual-lamp output and UV intensity
• Mounting access, cabinet modifications, and electrical supply
• Add-ons like viewport, interlock switch, or timer

Schedule an air quality assessment so a tech can quote the right UV option for your system.

Updated: 2026-03-12

Need help in Franklin, MA? Call (508) 571-6488 or book online. "We had our water line from the street serviced due to corrosion and had our basement dehumidifier hooked directly to the pump for continuous discharge, and no more emptying the tank." — John P.