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Home/Mold Testing/Chillum, 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 Prince George's 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.
Chillum began as a scattered crossroads where Riggs Road met Chillum Road, a stretch a Maryland State Highway Administration history dates to between 1861 and 1878. That history describes small truck farms filling the area into the 1930s, since no streetcar line reached it, and notes that its earliest subdivisions sold lots for owners to build on themselves while later ones were built complete by their developers. That mix of self-built and developer-built houses still shapes what a damp room can mean.
For a self-built house in Chillum Gardens or Oakdale Terrace, describe any addition made after the original lot sale, since early owners built at different times and to different standards. In a developer-built section such as Green Meadows or Bel Air Estates, identify whether the unit is attached or semi-detached and note any shared wall or plumbing run. A crawlspace beneath a ranch house may need its own description of ground cover and access, and a garden apartment near Riggs Road should include the floor and building number.
Local background: Maryland State Highway Administration: Chillum community history.
01
Where a subdivision sold only the lot, houses on the same street can date from several different periods and building methods. Describe what you know about when your section of the house was built and whether records exist for any addition made since the original construction.
02
Some Chillum streets were built as attached, two-family brick units sharing a common wall and roofline. A concern on one side may relate to conditions on the other. Identify your address relative to the shared wall and describe whether the neighboring unit has reported anything similar.
03
Several brick apartment buildings sit along Chillum's main roads with shared entrances serving multiple units. Note your building and floor, and describe any known roof or plumbing repair above or beside your unit before the visit, since a shared stack can carry water between floors.
Where we test in Chillum, and what to tell us
Chillum Gardens, Oakdale Terrace
These early subdivisions sold building lots individually, so construction dates and methods vary house to house. Identify when your section was built and whether the crawlspace or cellar was part of the original plan or added later.
Green Meadows, Bel Air Estates
Built complete by their developers, these sections have more uniform construction, often two-family attached units in brick or brick and frame. Note which side of a shared wall the concern is on and any recent work to the roof.
Sargent Knolls, Carrington, Miller Estates
In these later subdivisions along Riggs and Sargent Roads, describe the ranch or split-level layout and identify where a crawlspace or slab meets the addition, if the house has one.
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 which side of the shared wall shows the concern and whether the neighboring unit has reported anything similar. A consultation without laboratory samples describes Walk & Talk, while Mold Basic narrows in on one targeted area and Mold Plus builds on that with a moisture and thermal evaluation of it. A concern spanning both sides of the wall may need cooperation from the other owner.
It can help explain the construction, since some sections were built to a uniform plan and others let owners build over time. Describe your house's construction and any additions you know about, and the technician will scope the visit to the specific property rather than the subdivision generally.
Yes, if the concern is contained to your unit. Identify your building, floor and the area involved, and describe any shared walls, ceilings or plumbing chases nearby. Where a shared building system may be involved, the office can explain what additional access or agreement might be needed.
Describe each addition you know about and roughly when it was made, along with any change in materials or roofline at each connection point. That history helps identify where original construction meets newer work, which is often where a stain or odor is easiest to trace to a cause.
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
