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Your Partners Against Mold
Based in Falls Church · Serving Northern Virginia

HVAC Mold Removal in Falls Church, VA

Your HVAC contractor fixes the drain and the ducts, and we treat the mold that grew while they leaked.

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1 year Re-treat warranty on
whole-property jobs
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1-year re-treat warranty On every EnviroPure Mold Services treatment
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"Working with Bryce and Pure Maintenance was an excellent experience. Bryce was very responsive to my communications, he was able to be onsite quickly and he is very knowledgeable. Additionally, he recommended actions that were cost effective and appropriate for the situation."

Eugene Jones · Google review

HVAC mold removal in Falls Church covers the air handler, the drain pan and the ductwork, while the repairs that stop the water belong to your HVAC contractor. More than a third of workers in ZIP 22043 work from home (34.9 percent, Census Bureau 2020 to 2024), and a musty smell drifting from a vent each time the air conditioning starts is hard to miss on a workday at home.

The water comes from the system itself. While the air conditioner runs, it pulls moisture out of the house air onto its cooling coil, and that water is meant to drain away. When the drain clogs or the pan rusts through, the air handler and the ducts beside it stay damp. If the smell turns out to come from somewhere other than the system, our mold remediation page covers the rest of the house.

This page sits under our mold remediation service.

Verified Reviews

In their own words.

5.0/5 stars on Google. Every review here is quoted word for word from Google. Read them all on our reviews page.

Signs at the supply vents.

The first signs usually show at the vents:

  • Dark specks on supply grilles and on the ceiling around them
  • Vents that drip in humid weather
  • Rust or water stains under the air handler
  • Damp or stained insulation on ducts in the attic or crawl space
  • A smell that comes and goes with the air conditioning

The contractor's half.

Before you call anyone, look in the closet, attic or basement where the air handler sits. You can see whether the drain pan holds standing water, where the condensate line ends and whether a pump clicks on when the system runs.

Treating mold won't unclog a drain line. Before treatment, or soon after, have your HVAC contractor check the condensate line and any pump on it, the drain pan, the duct joints and the insulation on ducts that run through an attic or crawl space.

Parts that have stayed wet for months, such as soaked duct insulation, get replaced, and that replacement is the contractor's job too.

If the pan has overflowed before, ask about a float switch, which shuts the system off when the pan fills instead of letting it spill into the ceiling or the closet floor.

Our half, and the order of work.

We treat the mold on the air handler housing, the pan, the inside of the ducts and the rooms they serve, in the same visit. Our inspection notes record where we found moisture, which gives your contractor a place to start.

Either order works as long as both halves happen close together. If the drain is cleared first, treatment follows on a dry system. If treatment comes first, book the repair for the same week, because a pan that keeps overflowing will wet the ducts again.

What treatment day looks like.

The water source has to be fixed first, by you or the right trade, because mold comes back wherever moisture keeps arriving. On treatment day the home is empty: people, pets and plants leave, and furniture and electronics generally stay where they are.

The VaPURE sterilant goes in as a vapor and reaches surfaces, wall cavities, HVAC ducting, porous materials and the air. An antimicrobial protectant stage follows, which helps resist new growth once the moisture cause is fixed. Most homes are treated in a single day, and families are back the same evening.

Most homes need no demolition. When a material is too far gone, we say so in the estimate and it comes out. Afterward, air samples go to the same accredited third-party lab, which has no affiliation with EnviroPure.

Why EnviroPure

Why homeowners call us.

Ducts treated with the rooms

The vapor travels from the air handler through the supply and return ducts into the rooms they serve.

Safer Chemical Ingredients List

The active component of the sterilant is on the EPA's Safer Chemical Ingredients List.

Where this fits in mold remediation.

This page covers one part of the job. The mold remediation page covers the rest.

Frequently Asked

What homeowners ask us.

Duct cleaning takes out dust and debris. The VaPURE process treats mold on the surfaces the vapor reaches, including the ducts and the air handler, so the two do different jobs and some homes need both.

Mold alone is rarely a reason to replace one. The vapor treats the unit and the ducts in place, and if a part such as soaked duct insulation needs replacing, we note it for your contractor.

Yes. It moves from the air handler through the ducts into the rooms they serve, which is part of why the house is empty on treatment day.

If the drain is working, you can. If the pan is overflowing or a vent is dripping, have the contractor clear it first, because running the system keeps wetting the ducts.

Schedule Your Free Consultation

Talk to us about your home.

A short call is usually enough to know whether you need an inspection, a test or a treatment estimate.

Or call us directly 703-951-2400
Where We Work

Serving Falls Church & Northern Virginia.

Our service area starts in Falls Church and runs through Fairfax County (Springfield, Annandale, Fairfax and Tysons) to Alexandria, Arlington and Potomac, Chevy Chase and Bethesda, MD. Ask us about your street.

Fairfax County

Falls Church · McLean · Vienna · Tysons · Great Falls · Oakton · Annandale · Springfield · Fairfax

Taking bookings
Alexandria & Arlington

Alexandria · Old Town Alexandria · Kingstowne · Arlington · Crystal City · Ballston

Taking bookings
Montgomery County, MD

Bethesda · Potomac · Chevy Chase

Taking bookings
Service coverage
Northern Virginia · Montgomery County, MD