Home/Mold Testing/Greenbelt, 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.
Greenbelt began as a federal experiment. The National Park Service's history of the town's historic district credits Rexford Guy Tugwell's Resettlement Administration with building it starting in 1935, laid out with pedestrian paths and underpasses that kept foot traffic separate from the surrounding roads. The city's own materials describe that original section as a planned community still operated as a cooperative, distinct from Springhill Lake's garden apartments and the newer Greenbelt Station development near the Metro. Those three settings sit on very different foundations and framing.
In the original cooperative section, identify your unit's position within its building group and any shared roof or wall repairs, since Greenbelt Homes Inc. manages many homes in common. At Springhill Lake, describe your floor, the unit above yours and whatever the property manager has recorded about past leaks. Near Greenbelt Station or another newer development, bring builder repair records and describe grading around the foundation. Note whether your address sits within the older cooperative footprint or in a section built well after it closed.
Local background: National Park Service: Greenbelt Historic District, City of Greenbelt: Community Profile.

01
Original Greenbelt homes were built in connected groups, so a roof or gutter issue can affect more than one address. Identify your unit's position in the group and ask Greenbelt Homes Inc. about any related repair history.
02
A leak reported in one apartment can actually originate on the floor above rather than in that unit itself. Identify your unit and the one directly overhead, and ask the property manager whether nearby units have reported similar concerns.
03
The town's original pedestrian underpasses sit below grade and route stormwater differently than a typical street does nearby. If your home backs onto one of these paths, describe drainage patterns and any standing water noticed after storms or heavy snowmelt.
Where we test in Greenbelt, and what to tell us
Original Greenbelt, near Roosevelt Center
In this cooperative section, identify your unit's position within its building group and any shared roof, wall or foundation repairs. Greenbelt Homes Inc. records may help date past work on the structure or a neighboring one.
Springhill Lake
In a garden apartment here, describe your floor, the unit directly above yours and any leak history the property manager has on file. A managed building may require coordinated access, so mention this when scheduling the visit.
Greenbelt Station
In this newer development near the Metro, bring builder repair records, describe grading around the foundation and note any settling or window issues noticed since the home was completed and first occupied.
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 room is affected and whether the mark follows a shared wall or roof section. Mold Basic focuses laboratory sampling on that one defined area, while choosing Mold Plus folds in a moisture and thermal evaluation as well, and Walk & Talk remains an option for a consultation without any samples. GHI may also want a copy of any resulting report.
Check your cooperative's policy before scheduling, since GHI may want notice of work affecting shared structures like a roof or party wall. Describe your unit number and the affected area when booking, and the office can help you understand what documentation the cooperative typically requests.
Describe how the path or underpass sits relative to your foundation and whether water tends to collect there after storms pass through. That detail helps frame a below-grade assessment, though the technician still evaluates the specific room or area you describe rather than the path itself or its history.
There is no set waiting period before testing new construction. If you have noticed a specific odor, stain or window leak since closing, describe it along with any builder walkthrough notes you kept. The technician evaluates the area you describe rather than treating every new building in the development the same way.
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