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Home/Mold Testing/South Riding, 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.
South Riding was planned as a single community rather than assembled over generations. Its governing association, South Riding Proprietary, describes itself as a nonstock corporation formed by the original developer to oversee the new neighborhood, and the same association still administers it today under its Declaration and Bylaws. That one-plan origin means a house near Tall Cedar Estates and a townhome in Amberlea share an association but not necessarily a construction era. Describing which applies to your address helps frame a damp room correctly.
For a single-family house in Tall Cedar Estates, identify whether the lower level is a basement or a slab and note any walkout access. In The Parks or Amberlea, describe crawlspace access, shared walls with an adjoining townhome, and any addition built after the original construction. A unit near South Riding's Town Center may sit above retail space or share mechanical systems with neighboring units; bring details of any known leak or repair. For a home near Edgewater, note irrigation lines or drainage features close to the foundation. Tell us which of these applies before the visit.
Local background: South Riding Proprietary: About South Riding.
01
Where a lower level opens directly to the yard, grading and downspout placement change how water moves along that wall. Describe the slope behind the house and whether a walkout door or window has shown staining after storms.
02
Homes bordering managed turf or irrigated common areas may sit close to sprinkler lines or retention areas. Note the distance from the foundation to any irrigation head or low spot, and describe when dampness is noticed relative to watering or rainfall.
03
A residence above or beside commercial space can share roof drains, mechanical chases or plumbing stacks with the businesses below. Identify what is beneath or beside the unit and report any odor or stain along a shared wall or ceiling.
Where we test in South Riding, and what to tell us
Tall Cedar Estates
These single-family homes sit on larger, more private lots. Identify whether the lower level is a basement, slab or walkout, and describe any addition, deck or patio built after the original construction so the visit can focus on the right area.
The Parks and Amberlea
Both areas mix single-family houses with townhomes around shared green space. Describe crawlspace access, an attached garage, or a party wall with a neighboring unit, and note whether a lower room has been finished since the home was built.
Town Center and Edgewater
A residence near Town Center may sit above or beside commercial space with shared mechanical systems; describe that layout. Near Edgewater, note any irrigation, drainage or landscaping work close to the foundation before the visit.
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.
Mold Basic tests one targeted area you identify, such as a single room or crawlspace. Mold Plus adds a moisture and thermal evaluation of that same area, which can help explain a pattern before laboratory results return. Describe the room, when the concern started, and any recent water event so the office can match a scope to what you have observed.
A standard visit does not require association approval, since it does not alter the exterior or common elements. If a finding leads to repair work later, check the association's architectural guidelines separately. Tell us about any deck, siding or drainage feature near the area of concern so the visit accounts for it.
A shared wall can be a route for sound or moisture, so describe which side the concern is on and whether your neighbor has reported anything similar. The visit addresses your unit's accessible areas; establishing a source on the other side of a party wall may need cooperation from that owner.
A walkout level has more exterior wall and door area exposed to grading and rainfall than a fully below-grade room, which is a reason to describe it carefully rather than assume a result. Note the slope of the yard, gutter discharge points and any staining near the walkout door or windows.
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
