Skip to content
Home/Mold Testing/Sterling, 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 Loudoun 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.
NextDay Inspect's office is on Westlake Drive in Sterling. We serve Sterling Park, Cascades, Sugarland Run, Potomac Falls and Lowes Island; provide the property address and affected spaces when selecting your appointment.
For a Sterling Park house with a crawlspace, describe access and any ground-cover repairs. For a finished lower level elsewhere in Sterling, note past water entry, pump operation and humidity control. River proximity by itself does not identify a problem. The useful evidence is what happened at your property, where materials became wet and whether conditions changed after a repair or a season of heavy rain.
01
Missing or damaged crawlspace ground cover can be relevant to indoor moisture. Record the current condition and any drainage work rather than assuming the original construction remains unchanged.
02
Water entry depends on the specific site and building. Bring flood, seepage or drainage records if the concern involves a lower-level room near the river corridor.
03
A below-grade living area may need humidity management as well as leak repairs. Seasonal readings and the location of the odor help define an appropriate visit.
Where we test in Sterling, and what to tell us
Sterling Park
If your Sterling Park property has a crawlspace, tell us about its access and any standing water. Construction and past repairs vary from one address to the next.
Cascades, Sugarland Run
For a home in Cascades or Sugarland Run, identify finished lower levels and shared walls where relevant. The visit is scoped to the affected spaces, not an assumed neighborhood defect.
Potomac Falls, Lowes Island
For a Potomac Falls or Lowes Island property, describe drainage and previous water entry. Site elevation needs property-level evidence rather than an inference from the community name.
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.
Our office is on Westlake Drive in Sterling. Use the scheduler to see available appointments for your address and selected service, or call about a particular deadline. Local proximity helps with planning, but availability still depends on the team and scope; do not assume a same-day visit until an appointment is confirmed.
Being present can help you explain the history and affected rooms, especially for a Walk & Talk. For another visit type, access may be provided by an authorized representative. Tell us about locked areas, pets and building-entry requirements before the appointment so the technician can work within the agreed scope.
Having a crawlspace is not itself a mold finding, and Sterling Park properties should be assessed individually. Ground cover, drainage, access and the way the space is conditioned matter. Describe the odor or visible concern when booking; the appropriate response depends on the present building conditions rather than a neighborhood-wide assumption.
Ask about combining services when scheduling. Mold, radon and water testing have different preparation and timing needs, and radon may require equipment placement and retrieval. The available appointment and total price depend on the selected scope. Confirm the combinations for your property instead of assuming every service is completed in one visit.
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
