Your air handler is dark, damp, and 70°F all summer — perfect mold incubator conditions. UV-C lamps installed at the evaporator coil sterilize the moving air, kill mold spores before they grow on the coil, and dramatically reduce the musty smell most older AC systems develop after 5–7 years.
Two Different UV Solutions
Most homes don't need both — we'll recommend whichever solves your specific issue:
- Coil sterilization (single lamp) — mounted near the evaporator coil to prevent biological growth on the coil itself. Solves musty smells, extends coil life, and runs $400–$700 installed.
- Air sterilization (dual lamp) — placed in the return duct so air passes through UV-C exposure on every cycle. Reduces airborne bacteria and viruses. Runs $700–$1,100 installed.
What UV Will and Won't Do
UV-C will reliably:
- Kill mold spores on the coil and in the air handler interior
- Reduce airborne bacteria during system operation
- Eliminate musty 'old AC' smell within 2–4 weeks
- Reduce maintenance load on the evaporator coil
UV-C will not affect dust, dander, pollen, or VOCs. For those issues you need filtration or air exchange — not UV.
Same-Day UV Air Purification — Mabank, Cedar Creek Lake & DFW
Searching "uv air purification near me"? We dispatch same-day for most uv air purification calls across our entire service area — Mabank, Gun Barrel City, Seven Points, Kemp, Tool, Athens, Kaufman, and the full Dallas–Fort Worth metroplex including Plano, Frisco, Allen, McKinney, Arlington, Mesquite, Garland, and Rockwall. A real human answers the line 24/7 — usually Eric, Brad, or a senior tech, never a call center. Whether you searched for "uv air purification", "uv air purification", "HVAC contractor near me", or "best HVAC company [your city] TX", we cover it — veteran-owned, locally operated, never acquired by private equity.
Brand-Name HVAC Equipment We Service
We service every major HVAC brand on the market across our Mabank and DFW service area: Aprilaire, Honeywell, RGF Reme Halo, Bioforce Defender UV, GeneralAire, Field Controls, Lennox PureAir. Whether your existing equipment is 5 years old or 20, whether it's a high-end inverter system or a builder-grade base model, we approach the work the same way — honest diagnostic, flat-rate written quote, repair or install done right the first time.
Don't see your equipment brand listed? Call anyway. The HVAC industry only has a handful of core compressor and heat-exchanger manufacturers behind the dozens of consumer-facing labels — if it's a residential or light-commercial system, we likely service it.
Frequently Asked Questions
How long do UV bulbs last?
12–18 months. The bulb still glows past that, but UV output drops below the germicidal threshold. Annual bulb replacement is $80–$140.
Is UV-C safe?
When properly installed inside the air handler, yes — sealed system, no human exposure. Don't buy DIY ones that mount in occupied spaces.
Related Symptoms & Problems
If your specific symptom is one of these, jump to the diagnostic page:
Ready to schedule?
Most uv air purification calls in our service area get same-day or next-day appointments. Call now or book online.
Call (214) 466-6465