Local basement flooding help for Boston · 02108

What to do right now

1. If anyone is in danger, call 911.
2. Stay clear of electricity and standing water near outlets.
3. Keep children and pets away from affected areas.
4. Photograph damage for insurance before major cleanup.
5. Do not enter a flooded basement if the water may contact electrical systems.
6. Shut power at the breaker only if you can do it from a dry location.
7. Avoid pumping water until a pro confirms safe discharge and contamination class.
8. Basement flood in Boston (ZIP 02108) — mention sump or outdoor water if known.

About basement flooding in Boston

Estimated hazard framing for Boston (02108): elevated coastal / storm-water exposure for this metro zip. Census data: ZIP 02108 has about 2,568 homes, the median one was built in 1938, 15% are single-family houses, 51% are owner-occupied. 90% of homes here were built before 1980, the era of galvanized supply pipe and cast-iron drains — both corrode from the inside, so pinhole leaks and slow drain seepage are common. Tropical / coastal storm seasons can drive surge, heavy rain, and indoor water events. This page is for homeowners in Boston, Massachusetts — not a contractor listing, and

Local conditions

Flood insurance claims in ZIP 02108

FEMA's National Flood Insurance Program records 19 flood claims from ZIP 02108 between 1978 and 2021 — 2 of them in the last 10 years. 11 were paid, $96K in total, with a median payout of $3,623.

• Not a named storm (1979) — 5 claims
• The "Halloween" Storm (1991) — 2 claims

Rising or surface water is excluded from standard homeowners policies — it needs NFIP or private flood coverage. A burst pipe or appliance leak is usually a homeowners claim instead, so photograph the source before cleanup.

Source: OpenFEMA NFIP redacted claims, data as of June 1, 2026. Counts are claims reported under this ZIP, not individual homes.

Common causes in Boston

Knowing the likely source in Boston helps you shut the right valve and brief a contractor faster.

• Supply-line failures (washer hoses, fridge lines, angle stops under sinks)
• Corroded galvanized or cast-iron lines — 90% of homes here predate 1980
• Storm-driven intrusion, roof leaks after wind, or window well overflow
• Slab or underground leak symptoms (warm floors, unexplained high bills)
• Appliance faults (dishwasher, ice maker, HVAC condensate)

Cost expectations in Boston

Homeowners in Boston typically see wide ranges — small leaks vs sewage/multi-room are different leagues. Numbers below are orientation, not bids.

• Small contained leaks: often lower four figures
• Room-level drying in denser housing: commonly mid four to low five figures
• Storm-driven or multi-room events: can run much higher, especially with contaminated water
• For scale: the median owner-occupied home in ZIP 02108 is valued at $1,667,600 (Census), so a five-figure drying job is a real share of the home's value — worth documenting carefully for your insurer
• Flood-insurance payouts in this ZIP: median $3,623 across 11 paid NFIP claims (FEMA) — flood policies pay for outdoor water that homeowners policies exclude

For your insurer

• Photos or short video before major cleanup
• When the water started and what you shut off
• Receipts for emergency purchases
• Contractor assessment when available
• Do not discard large damaged items until your insurer says it is OK when possible.

FAQs — basement flooding in Boston

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