Home/Mold Testing/Parkville, 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 Baltimore 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.
Parkville sits in the developed half of a valley that turns rural just to the north. Baltimore County's watershed planning page places Parkville, with Carney, in the urbanized portion of the Lower Gunpowder Falls watershed, south of the more agricultural land around Cromwell Valley Park, a county park in the Minebank Run valley with pasture, hedgerows and floodplain where the county runs history and farming programs. A neighborhood close to that valley edge sits differently on the land than one further into the built-up grid toward Baltimore City.
For a home in Loch Raven Heights or Cub Hill, closer to the valley and reservoir land, describe crawlspace access, mature trees near the foundation, and any addition built onto an older house. In Hillendale or Carney, tell us the house's approximate age and any renovation, since bungalows and contemporary houses sit on the same streets. Near Harford Park, identify whether the affected room is in the original house or a later addition, since a compact house there may have been expanded over time. A clear description of the specific room matters more here than the neighborhood's general character.
Local background: Baltimore County Government: watershed management and monitoring.

01
A lot near the wooded valley edge may drain differently than one on a flatter street, especially after heavy rain. Describe grading around the foundation, gutter condition, and whether water pools near the house after storms rather than assuming the slope alone explains an indoor concern.
02
A Hillendale or Carney house may combine an original bungalow footprint with a later addition built in a different decade. Describe when each section was constructed and whether staining or odor follows the seam where the two meet rather than appearing throughout the house.
03
A Harford Park house built as a compact, affordable home may have gained a room, garage or enclosed porch added by a past owner. Describe each addition separately, including its approximate age, so the technician can consider whether the original structure and the newer work should be evaluated differently.
Where we test in Parkville, and what to tell us
Loch Raven Heights, Cub Hill
Closer to the valley and reservoir land, describe crawlspace access, mature trees near the foundation or gutters, and any addition built onto an older house. A spacious lot does not by itself explain a specific stain or odor.
Hillendale, Carney
Identify the house's approximate age and any renovation, since bungalows and contemporary houses sit along the same streets here. Describe whether the affected room is part of the original structure or a later addition.
Harford Park
For a compact house that may have been expanded over time, describe whether the affected room is original or added, and how it connects to the roof and foundation of the rest of the house.
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.
Mold Basic addresses one targeted area, which suits a single documented concern such as a specific wall or floor. Mold Plus adds a moisture and thermal evaluation of that same area when the cause is not obvious. Describe the room, the house's age, and any past repairs, and the office can help match the visit.
Not directly, since the county park itself is separate from your property. Describe your lot's grading, any nearby stream or low spot, and whether water has pooled near the foundation after storms. That context helps the technician interpret conditions at your specific address rather than assuming anything from the park's proximity alone.
Yes, describe whether your unit is part of a larger building with shared plumbing or a standalone house. Note who manages the property and whether a landlord or association needs to authorize access. The visit addresses your accessible unit, and a concern that may extend into shared systems could need a separate step.
Often, yes. Describe when the addition was built and how its foundation or roofline connects to the original bungalow. The agreed scope can focus on the newer section if that matches where the concern appears, though a broader area may be worth including if evidence crosses into the older part of the house.
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