Basement Mold Removal in Portland, Maine
Basement mold is the most common mold removal call in Portland. Foundation seepage, inadequate waterproofing, and the temperature differential between basement air and cold concrete walls creates persistent condensation. Both finished and unfinished basements are vulnerable — finished basements present additional complexity because mold grows inside walls, under flooring, and behind paneling before it becomes visible.
Finished vs. Unfinished Basements
Unfinished basement mold is typically more straightforward — visible on joists, block walls, and concrete surfaces, accessible for containment and removal. Finished basements require demolition of drywall, flooring, and insulation to reach mold-contaminated materials behind them. This drives up cost and extends timelines. One critical distinction Portland homeowners often miss: waterproofing and mold removal are different services. A contractor who offers to seal your foundation is addressing moisture entry — but if mold has already grown on structural materials, it must be removed first. Sequence matters.
Basement Mold Removal Contractors in Portland
45 listedAll Portland Mold Removal Contractors
C.M.L Roofing & General Contracting
145 Sawyer St, South Portland, ME 04106
+1 207-331-4563Soil-Away Cleaning Services, LLC
5 Eastpoint Dr Unit 23, Hooksett, NH 03106
+1 603-641-6555Pristine Exterior Cleaning
100 Innovation Way Ste 8, Scarborough, ME 04074
+1 207-292-6031Octagon Cleaning & Restoration
12 Roosevelt Trail Unit 1, Windham, ME 04062
+1 207-383-1520Kitchen Tune-Up Brooklyn North
630 Flushing Ave Suite 814, Brooklyn, NY 11206
+1 718-877-1219SERVPRO of Portland, South Portland and The Sebago Lake Region
9 Hutcherson Dr, Gorham, ME 04038
+1 207-977-4478Paul Davis Restoration of Southern New Hampshire, Maine & Boston North (Essex County)
3560 Lafayette Rd SUITE C, Portsmouth, NH 03801
+1 603-964-8484SERVPRO of Bath / Brunswick and SERVPRO of Belfast / Camden / Rockland
28 Monument Pl, Topsham, ME 04086
+1 207-956-0806M and Son Construction. Residential and commercial
12 Grove St, Portland, ME 04103
+1 207-956-1528Rainbow Restoration of Greater Portland
2 Washington Ave, Scarborough, ME 04074
+1 207-730-7125EnviroClean - South Portland
170 John Roberts Rd STE 12, South Portland, ME 04106
+1 207-871-7775All Dry Services of Southern Maine
27 Katana Dr Door #6, South Portland, ME 04106
+1 207-607-5950Paul Davis Restoration of Greater Portland ME
60 Gray Rd unit d, Falmouth, ME 04105
+1 207-618-9975Basement Mold Removal Cost in Portland
Typical range: $1,000 – $4,000
Finished basements with wall and flooring demolition required often run $3,000–$6,000. Get scope defined in writing before work starts.
| Location | Typical range |
|---|---|
| Bathroom | $500 – $1,500 |
| Crawl space | $500 – $2,000 |
| Basement | $1,000 – $4,000 |
| Attic | $1,000 – $4,000 |
| HVAC system | $2,000 – $8,000 |
| Whole house (severe) | $10,000 – $30,000+ |
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