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Mold testing
Mold Testing in Fauquier County, VA
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 all of Fauquier County
Schedule a mold test Call (703) 450-6398 Find your community
Where we test in Fauquier County
One community in the county has a page of its own with local detail. The packages, the prices and the laboratory are the same across the county, so you can book from either page.
- Warrenton
Warrenton anchors the county's horse country, with brick rowhouses downtown giving way to large-lot estates on well and septic.
How much does mold testing cost in Fauquier 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
Mold Walk & Talk
"Something feels off and I do not know if testing is worth it."
$175
30 minutes on site
- Time with an environmental technician
- Moisture meter and thermal camera
- Findings explained on the spot
- Each additional 30 minutes $95
- No samples or laboratory work
One area, tested
Mold Basic
"I can see it, or I know exactly where to look."
$345
One targeted area, 1 to 2 hours
- Indoor sample plus outdoor comparison
- Accredited laboratory analysis
- Written laboratory report
- Additional samples $95 each
One area, plus the source
Mold Plus
"There was a leak and I want to know where the water went."
$495
One targeted area, 1 to 2 hours
- Everything in Mold Basic
- Moisture and thermal evaluation of the area
- Read Your Mold Report guide
- Each additional area $50 plus its $95 sample
The whole home
Mold Advanced
"It could be anywhere, or it keeps coming back."
From $550
Priced by home size, 1 to 2 hours
- Whole home moisture and thermal evaluation
- Sampling in the areas that call for it
- Read Your Mold Report guide
- Post-remediation re-test $295 held 3 months
* Prices shown are for Virginia and Maryland. In Washington DC, Mold Basic is $425, Mold Plus is $575, and Mold Advanced starts at $630. Mold Walk & Talk is $175 everywhere.
Where moisture can hide in Fauquier County homes
Fauquier County's build-out runs from the historic courthouse town of Warrenton outward into horse country. The oldest sections cluster around Warrenton and the crossroads villages platted along old turnpikes, while the twentieth century added larger-lot subdivisions along Routes 29, 17 and 211 as the county grew as a commuting and equestrian community rather than a dense suburb. Away from Warrenton's public water and sewer, most of the county remains large parcels served by individual wells, septic fields and a mix of basements, crawlspaces and outbuildings that vary with the age and use of each property.
The USGS model for Fauquier County considers the Blue Ridge, Piedmont and Mesozoic basin as distinct groundwater-recharge settings. Regional geology does not determine a mold sampling plan. On a large property, identify the specific room or separate structure with a concern, any known leak near private utility equipment, and access through gates or long lanes. Confirm each requested area with the office.

01
Mesozoic basin soils east of Warrenton
The USGS study describes regional differences in groundwater recharge across Fauquier's geological areas. It cannot identify the source of dampness at one Warrenton-area property. Describe where moisture appears and any drainage work already completed; foundation engineering and mold sampling answer different questions.
02
Blue Ridge foothill wells in western Fauquier
If the concern is near a well house or pressure tank on a western Fauquier property, name that location when booking and describe any known leak. Those spaces are not automatically included in a mold package for the main house. Water quality and equipment performance require separate service decisions.
03
Long private lanes and detached horse barns
List each Fauquier building you want considered, such as the residence, a barn, workshop or tenant dwelling. Include gate and lane access details. Confirm the agreed structures, package and cost with the office before the visit; a shared street address does not make every outbuilding part of the booking.
We only perform testing, not remediation.
We do not remove mold, so we have nothing to gain from your results. If your report shows a problem, you choose who fixes it. Once the work is done, we can test again and tell you what we find.
Before you book in Virginia
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 testing near Fauquier County
Mold testing in Fauquier County, answered straight
Do you serve every part of Fauquier County, not just Warrenton?
Yes. The same team and pricing cover the whole county, from Warrenton out through the rural western and eastern ends, and a booking from any address in the county reaches the same schedule. If your property sits well outside the Warrenton area, mention that in the booking notes so travel is planned for.
My address says a village like Marshall, Remington or The Plains instead of Warrenton. Should that affect my booking?
Use the full street address, state and county when booking a property around Marshall, Remington, The Plains or Warrenton. The postal place name alone does not describe the building or the scope needed. Mention any separate structures or access restrictions so the office can confirm the appropriate appointment.
Are Fauquier's larger equestrian properties treated any differently for scheduling or pricing?
The package, home type or size, additional areas and samples can affect the charge. Lot acreage alone does not describe the work. List barns, tenant dwellings and other requested structures, along with gate or lane access, and confirm their scope and pricing before booking.
How does a well and septic property change what gets tested?
Tell the office whether the concern is inside the dwelling or near a well house, pump or wastewater system. Mold testing does not automatically evaluate drinking-water quality, a well or a septic system. Confirm separate service needs and which rooms or structures are included before the appointment.
Book a mold test in Fauquier County
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NextDay Inspect
46179 Westlake Dr, Ste 200, Sterling, VA 20165
(703) 450-6398