Home/Mold Testing/Arlington, 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 Arlington 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, with $80 added to every home-size tier. Mold Walk & Talk is $175 everywhere.
Arlington appointments can involve a detached house, a renovated addition or one unit in a larger building. Tell us which spaces are affected and whether building management controls access to the suspected source.
A basement odor and a stain below an upstairs bathroom call for different investigations. In a house with an addition, the connection between the original roof and the newer wall is worth checking. In an apartment, the plumbing route may extend beyond the unit. Bring the dates of leaks, repairs and repainting so the technician can relate present readings to the history without assuming the neighborhood tells the whole story.

01
Drywall can conceal a damp foundation. In a finished basement, identify the earliest stain and whether it changes after rainfall before choosing sampling locations.
02
An addition introduces roof-to-wall connections and changes in floor level. Moisture evaluation can help investigate a stain near that junction without assuming its source.
03
A bathroom fan needs a suitable discharge path. Where visible access permits, checking that path can help explain persistent humidity in an enclosed room.
Where we test in Arlington, and what to tell us
Lyon Village, Ashton Heights, Arlington Ridge
For a renovated house here, point out additions and finished lower levels. The visit can focus on the connection between older materials and later work.
Westover, and the post-war streets around it
If the property has a crawlspace, arrange safe access and identify any ground cover or drainage work. A musty room above it gives us a useful starting point.
Rosslyn, Clarendon, Shirlington
For an apartment or condominium, identify the affected room and any shared plumbing. Access to a neighboring unit or common area must be coordinated separately.
No version of your result is worth more to us than another one. If the report says you need work, you choose the remediator. A separate post-remediation assessment can document conditions after the work within its agreed scope.
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 scope a visit to an individual unit, with sampling selected for the question and an outdoor comparison where appropriate. Tell us about access rules and leaks reported elsewhere in the building. The report documents your unit's assessment; it does not establish the condition of inaccessible common areas.
A history of water entry, a persistent odor or a concern behind later basement finishes can justify further evaluation. Age alone is not a reason to buy samples. Share the repair history of the Arlington house so the technician can help identify what question testing would answer.
A visit can be arranged before a purchase decision if the seller provides access and timing is available. The Walk & Talk is a consultation without laboratory sampling. Confirm the contingency and access arrangements with your agent; the consultation does not replace the protections of a full assessment.
Check the lease and access arrangements before booking, especially for shared areas, roof space or an adjoining unit. We can discuss the sampling scope for an occupied Arlington rental, but permission and notice requirements depend on the particular agreement and property. A laboratory report does not determine those rights.
Real availability on the next screen. No call back required.
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NextDay Inspect
46179 Westlake Dr, Ste 200, Sterling, VA 20165
(703) 450-6398