Home/Mold Testing/Fairfax County/Reston, VA

Mold testing

Mold Testing in Reston, VA

Samples taken in your home, analysed by an accredited laboratory. We do not sell remediation, so the report has nothing to sell you.

4.9 rating, over 4,000 reviews NAMRI-certified inspectors Serving Fairfax County

Schedule a mold test Call (703) 450-6398

How much does mold testing cost in Reston?

Four options, depending on how much of the home you need looked at. Not sure which one fits? Start with the thirty minute visit and a technician will tell you what is actually worth testing. Decide to test while they are there and the visit is written up as a Mold Plus.

No sampling

Mold Walk & Talk

"Something feels off and I do not know if testing is worth it."

$175

30 minutes on site

  • Time with an environmental technician
  • Moisture meter and thermal camera
  • Findings explained on the spot
  • Each additional 30 minutes $95
  • No samples or laboratory work

One area, tested

Mold Basic

"I can see it, or I know exactly where to look."

$345

One targeted area, 1 to 2 hours

  • Indoor sample plus outdoor comparison
  • Accredited laboratory analysis
  • Written laboratory report
  • Additional samples $95 each

One area, plus the source

Mold Plus

"There was a leak and I want to know where the water went."

$495

One targeted area, 1 to 2 hours

  • Everything in Mold Basic
  • Moisture and thermal evaluation of the area
  • Read Your Mold Report guide
  • Each additional area $50 plus its $95 sample

The whole home

Mold Advanced

"It could be anywhere, or it keeps coming back."

From $550

Priced by home size, 1 to 2 hours

  • Whole home moisture and thermal evaluation
  • Sampling in the areas that call for it
  • Read Your Mold Report guide
  • Post-remediation re-test $295 held 3 months

* Prices shown are for Virginia and Maryland. In Washington DC, Mold Basic is $425, Mold Plus is $575, and Mold Advanced starts at $630. Mold Walk & Talk is $175 everywhere.

Where moisture can hide in Reston homes

Fairfax County documents Lake Anne as the original village center of Robert E. Simon's Reston development. A Reston booking may involve a lakeside home, a cluster property or an apartment near Town Center, each with different access arrangements.

In an attached home, start with the location of the odor or stain and any work on a shared roof. For a low-slope roof, repair records can help connect an interior mark with a possible entry point elsewhere. A wooded setting does not establish an indoor mold problem. What matters is whether water reaches the building, how long materials remain damp and which parts of the property can be inspected.

Lake Anne Plaza in Reston

01

Low-slope and flat roof sections

On a low-slope roof, an interior stain may be offset from the entry point. Keep repair photographs and the dates when the stain appeared or changed.

02

Townhouse party walls

Moisture near a party wall may require coordination with an association. Testing one room does not establish the condition of another home or identify responsibility.

03

Wooded lots and lakeside humidity

Shaded exterior materials and blocked gutters can stay damp. Indoor readings help distinguish an exterior maintenance concern from moisture affecting the occupied space.

Where we test in Reston, and what to tell us

  • Lake Anne Village

    For a home near Lake Anne, tell us about roof repairs, exterior wall changes and the position of the affected room. Lakeside location alone does not identify the moisture source.

  • North Point, South Lakes, Hunters Woods

    For a cluster home, check who maintains the roof and exterior. Shared maintenance records can help investigate a concern that appears near a party wall.

  • Reston Town Center

    For a Town Center apartment or condominium, arrange unit access and any required building entry. Reports of leaks above or beside the unit help plan a focused visit.

We only perform testing, not remediation.

We do not remove mold, so we have nothing to gain from your results. If your report shows a problem, you choose who fixes it. Once the work is done, we can test again and tell you what we find.

Before you book in Virginia

Virginia's residential disclosure statement advises buyers to exercise due diligence, including considering a mold assessment conducted by a business following EPA guidance. Confirm the scope and timing with your agent before settlement. A laboratory sample documents a selected place and time; it does not certify an entire home as mold-free or replace advice about your transaction.

Va. Code section 55.1-703. Current as of September 2026. General information, not legal advice.

Mold testing in Reston, answered straight

Do you test townhouses and condominiums in Reston?

Yes. We can plan a visit for a townhouse or condominium in Reston. Identify the unit, affected room and any shared roof or plumbing concern. An outdoor comparison can help interpret air sampling, while access restrictions and conditions outside the unit will be recorded as limits of the assessment.

Does my cluster association need to approve a mold test?

Check your cluster's rules and any access requirements before booking. A non-invasive visit inside a home differs from opening a shared wall or altering exterior materials, but the applicable agreement still matters. If the suspected source crosses a unit boundary, management may need to coordinate access and repair records.

The roof is flat and there is a stain on the ceiling. What should I book?

Mold Plus may fit a defined ceiling concern because it adds moisture and limited thermal evaluation to the targeted area. Describe the roof repair history and whether the stain is changing. Those observations guide the scope; a stain alone cannot tell us whether the material currently contains mold.

The unit next door had a leak. Should I test mine?

If your side became wet, developed staining or now smells different, document the timing and arrange an evaluation. A neighbor's leak does not establish contamination in your unit. The visit can assess accessible areas and explain when shared-structure access or additional investigation would be useful.

Book a mold test in Reston

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NextDay Inspect
46179 Westlake Dr, Ste 200, Sterling, VA 20165
(703) 450-6398

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