HVAC & Air Duct Mold Removal in Lawrenceville, GA

Why Lawrenceville systems get wet

Lawrenceville is the Gwinnett County seat, about 27 miles northeast of Atlanta in the Yellow River watershed. Gwinnett stormwater staff reported that the heaviest rain of the September 2009 floods fell near the city, with parts of the watershed getting roughly 19 inches over eight days, and NWS gauges at Lawrenceville on Pew Creek, Shoal Creek and the Alcovy River crested above flood stage on September 21 that year. When water reaches a crawl space, the duct runs and the air handler sitting there take the hit along with the framing.

Flooding is the rare case. The everyday source is the cooling coil, which pulls moisture from the air for months on end. If the drip pan holds water, the drain line slows, or cold supply ducts sweat in a damp crawl space or a hot attic, the system grows its own mold without any leak from outside.

Clean it or replace it?

What you might be noticing

• An earthy smell that shows up only when the blower runs
• Dark specks around supply grilles, especially in bedrooms
• Water stains on a ceiling below an attic air handler
• Rust or standing water in the pan under the coil
• Indoor air that feels clammy even with the thermostat set low

Timing notes

Late summer is when drain lines clog and coils run hardest, so it is a common time for musty air to appear. If replacing equipment or duct runs inside city limits, ask the company whether a permit is needed from Lawrenceville Planning & Development, which takes applications through its Licensing, Permits, and Plans portal. Georgia has no state mold license, and work on the unit itself is a separate trade from general contracting, so ask who on the job holds which credential.