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Home/Mold Testing/La Plata, MD
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 Charles 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.
La Plata became the seat of Charles County government after starting as a smaller crossroads. The Maryland Manual, the state's own reference on local government, records that the town was incorporated in 1888 and takes its name from the Chapman family's La Plata Farm. County offices, older in-town houses and the newer subdivisions that ring La Plata today sit on very different lots, which matters when describing where a room takes on moisture.
For an older house near the county seat's core, identify the cellar or crawlspace and any addition made since the original construction. In a newer subdivision, describe grading around the foundation and whether a garage or storage room has ever taken on water. For a townhouse in a shared development, note which wall or roof section is affected and who manages exterior repairs. Bring any builder or renovation records you have when booking.
Local background: Maryland Manual Online: La Plata.
01
Some La Plata lots rely on a swale or drainage ditch rather than underground piping to move water away from the house. Describe whether that feature has been altered, blocked or regraded, and whether standing water has been seen near the foundation after storms.
02
An attached garage used for storage can trap humidity differently than a living space, especially if it sits below grade on one side. Describe what is stored there, whether the floor has ever been wet, and how the garage connects to the rest of the house.
03
A townhouse near a Steeplechase clubhouse or pool may share a roofline or utility chase with its neighbors. Identify the adjoining unit and note any recent exterior work on the building before the visit, since a shared structure can complicate a single-unit scope.
Where we test in La Plata, and what to tell us
Clarks Run, King's Grant
In Clarks Run or King's Grant, describe the foundation type on a larger lot and any drainage feature, such as a swale or ditch, near the affected area. Mature landscaping can direct water toward a foundation in ways worth noting.
Quailwood, Oak Grove Estates
For a custom or detached home in Quailwood or Oak Grove Estates, identify whether the concern is in a finished basement, a crawlspace or an attached garage. A larger lot's grading history is useful context for the visit.
Hickory Ridge, The Villages of Steeplechase
In Hickory Ridge or The Villages of Steeplechase, describe whether your unit is a townhouse or single-family home, and identify any shared wall or clubhouse-area building involved. A townhouse visit may need to note the neighboring unit's construction.
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.
For a Maryland property, define the question before ordering samples: a particular stain, persistent odor, water event or follow-up after repairs. Keep dated observations and laboratory findings with the repair history. A report does not determine health risks, insurance coverage or legal responsibility. Montgomery County also publishes separate radon requirements for covered home sales; confirm which rules apply to your transaction.
EPA sampling guidance; Montgomery County radon guidance. Current as of September 2026. General information, not legal advice.
Describe how the crawlspace is reached and whether any odor carries into the rooms above it. Testing one targeted area, such as the crawlspace alone, is what Mold Basic is built for, and Mold Plus pairs that with a moisture and thermal evaluation of the same space. Let the office know what you can observe if entry to the space is limited.
No. Being near the county seat's government buildings does not change how a home is evaluated. Describe your property's own observations, such as a stain or odor, and the technician will assess the accessible spaces at your address entirely on their own terms and history.
If there is a known water history or a current odor, describing it before finishing gives the visit something concrete to evaluate. Photograph the space first if you can. A basement finished over an undisclosed issue can make a later question harder to answer clearly.
Only with that owner's permission. Identify the shared wall or roof section when booking, and the office can discuss coordinating access with the other owner. Without that access, the visit stays limited to your own unit only, and the written report will state that limitation clearly.
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
