Middlesex County
Mold Removal in Everett, Built on Filled Marsh
Much of lower Everett is filled salt marsh over a river that was put underground in the 1960s, so a slab that stays damp there can be a site condition rather than a leak. Everett also has no paid flood insurance claim on record, which almost certainly means few policies rather than no water, so an empty claim file is not evidence of a dry basement.
Request a quote in Everett
Tell us what you can see, where the water came from, and whether anything is still wet. That is usually enough for us to say which trade you need, and whether the job is small enough to handle yourself, before anyone comes out.
Would you rather talk it through? Call (315) 640-3590, answered 24/7.
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What a buried river and an empty claim file mean in Everett
The Mystic River Watershed Association records that the Island End River flowed through salt marshes, mudflats and creeks, that a dam and dike were built in 1789, that the marshes were filled from the 1890s for industry, and that the river was put underground in a culvert in the 1960s. It now overflows its banks about once a year.
Source: Mystic River Watershed Association, accessed 2026-09-14
FEMA's NFIP claims dataset records no flood insurance claim whose rated NFIP community is the City of Everett, Massachusetts, while it records claims for every other city and town in this coverage area.
Source: Federal Emergency Management Agency, OpenFEMA NFIP Redacted Claims v2, accessed 2026-09-14
Everett has 53.3 percent of its housing units built in 1939 or earlier and a median year of construction of 1938, with 77.2 percent built before 1980. 52.5 percent of its units sit in two, three and four unit structures.
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates, accessed 2026-09-14
The Island End River Flood Resilience Project states that the Island End River on the Everett and Chelsea border already floods often at high tide in calm weather, that this is projected to happen almost weekly by 2030 and twice a day by 2050, and that the roughly 500-acre floodplain holds more than 800 buildings and more than 5,000 residents in underserved communities.
Source: Island End River Flood Resilience Project, Cities of Chelsea and Everett, accessed 2026-09-14
The Alewife Brook release states that only one treated combined sewer overflow discharge remains to the Upper Mystic River, from the MWRA Somerville Marginal CSO facility, outfall MWR205A/SOM007A, located about half a mile upstream of the Amelia Earhart Dam just below the Route 28 bridge, and that state bacterial standards for the Upper Mystic are typically missed only during and after large storm events.
Source: City of Cambridge, Massachusetts Water Resources Authority and City of Somerville, accessed 2026-09-14
A wet slab is not always a leak
Tell us where it stays damp and we will say whether you are looking at groundwater.
Why an Everett two or three family loses two protections
Everett's median home was finished in 1938 and 52.5 percent of its units sit in two, three and four unit buildings, which removes two protections owners assume they have. The asbestos do-it-yourself exemption is defined to exclude rental and multiple-family buildings, so a written survey by an asbestos inspector comes before any wall cavity or layered floor is opened. And because MGL c.142A reaches only pre-existing owner-occupied buildings of one to four units, a rented two or three family here sits outside the Guaranty Fund entirely, which makes the written scope and the photographs the protection on both sides. On the ground, the Island End River was diked in 1789, its marshes filled from the 1890s and the river itself culverted in the 1960s, and it now overflows its banks about once a year, so in the lowest streets the question is groundwater and tide before it is gutters.
Areas within Everett: Everett Square, Glendale, Woodlawn, West Everett, Lower Broadway, Village
What we arrange from Everett Square to Lower Broadway
Mold Inspection and Testing
Find out whether you have a real mold problem, how far it reaches and what water is feeding it, before anyone quotes you to take a wall apart.
Mold Testing in Everett →Mold Removal and Remediation
Get the mold and the material it grew into out of the building under containment, with the pre-demolition gates cleared first and the room put back afterwards.
Mold Removal in Everett →Water Damage Drying and Moisture Control
Get the building dry inside the window where mold never gets started, and fix the humidity or condensation that keeps making it wet.
Water Damage Drying in Everett →Tell us what the floor and the lower walls are doing
We will say what can be repaired and what is simply the site.