Home/Mold Testing/Fairfax County/Reston, VA
Mold testing
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
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
"Something feels off and I do not know if testing is worth it."
$175
30 minutes on site
One area, tested
"I can see it, or I know exactly where to look."
$345
One targeted area, 1 to 2 hours
One area, plus the source
"There was a leak and I want to know where the water went."
$495
One targeted area, 1 to 2 hours
The whole home
"It could be anywhere, or it keeps coming back."
From $550
Priced by home size, 1 to 2 hours
* 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.
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.

01
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
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
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 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.
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.
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.
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.
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.
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.
Real availability on the next screen. No call back required.
Schedule a mold test Request a price
NextDay Inspect
46179 Westlake Dr, Ste 200, Sterling, VA 20165
(703) 450-6398