Mold Testing Service Areas in Nampa and Canyon County
We cover all of Nampa and the surrounding Canyon County communities. Moisture problems differ by part of town, so here's what we tend to look for in each one.
Nampa, area by area
Nampa has grown from about 100,200 people in 2020 to roughly 120,000 by 2025, with a median home built around 2000. That gives the city an older core and a lot of newer subdivisions, and their mold problems look different.
North Nampa
Established neighborhoods along the I-84 corridor and around the Ford Idaho Center, with plenty of rentals and older crawlspaces. Common findings: crawlspace moisture, undersized bathroom fans, plumbing leaks in older lines.
North Nampa mold testing → 83686South Nampa
Newer subdivisions toward Lake Lowell and the Deer Flat National Wildlife Refuge, mostly on vented crawlspaces with pressurized irrigation. Common findings: irrigation-season crawlspace water, attic ventilation issues, new-build moisture.
South Nampa mold testing → 83651Central and Old Nampa
Older homes near downtown, the historic Nampa Train Depot, Lakeview Park and Northwest Nazarene University. Common findings: damp basements and cellars in spring, aging plumbing, older foundations, homes near Indian Creek.
Old Nampa and downtown mold testing → RuralLake Lowell and rural Nampa
Acreage, wells and outbuildings along Midway Road and the Lake Lowell edge. Common findings: groundwater and ditch water in low-lying lots, crawlspaces that flood in summer, moisture in shops and outbuildings.
Lake Lowell and rural Nampa mold testing →Near a canal or ditch? Seepage from the canal system is the largest source of groundwater recharge in the Treasure Valley. If your home sits near the Ridenbaugh Canal, the Phyllis Canal, Indian Creek, Fifteenmile Creek or a farm lateral, check the crawlspace during irrigation season (roughly April to October). Crawlspace mold guide
Nearby Canyon County and Treasure Valley cities
We also test homes in these communities. Travel within about 30 miles of Nampa is included.
The same Treasure Valley patterns apply across these towns: irrigation and canal water in summer, condensation during winter inversions, and a large share of newer homes on crawlspaces. Fast-growing communities like Star, Kuna and Middleton have a lot of new construction, where framing that got wet during building can be a factor.
