Storm and flood cleanup

Basement flooding cleanup

A flooded basement is pumped out, cleared of soaked materials, cleaned and then dried with dehumidifiers until the walls, slab and framing read dry. How it is handled depends on where the water came from: a burst pipe is clean water, while groundwater, storm water and sewer backups are treated as contaminated.

Call +1 (321) 485-9714 Request help online

20,778 ZIP codes covered in 47 states
Free referral, no obligation
Contaminated water and mold

Standing water covering the floor of a room — Stock photo

Basements flood because they sit below the water table part of the year. The usual causes are a sump pump that failed or lost power during a storm, groundwater seeping through wall cracks and the joint where the wall meets the floor, window wells that filled, a floor drain that backed up, or a water heater or washing machine that let go.

The order of work matters. Power to the basement is made safe first. Deep water is pumped down in stages, because emptying a basement too fast while the ground outside is saturated can stress the walls. Then carpet, pad, wet drywall and insulation come out, hard surfaces are cleaned, and dehumidifiers run for days. Concrete and block hold water long after they look dry.

This page is part of storm and flood cleanup.

Basement flooding cleanup at a glance

Common causes: Sump pump failure, seepage, window wells, drain backup
Water category: Depends on the source; groundwater and sewage are contaminated
Removed: Carpet, pad, wet drywall and insulation
Drying time: Often 5–7 days; concrete dries slowly

Signs you need basement flooding cleanup

Standing water on the basement floor
A sump pump that is silent or running without lowering the water
Water marks or white mineral stains on walls
Wet carpet along the walls after rain
A musty smell that returns every spring

How this differs by region

Midwest and Great Lakes

Heavy clay soil and spring snowmelt keep sump pumps running; a pump failure in a storm is the classic call. See Illinois, Michigan, Ohio and Wisconsin.

Northeast

Older stone and block foundations seep, and nor'easters and tropical remnants bring long rain. See New York, New Jersey and Pennsylvania.

South and West

Basements are uncommon where homes sit on slabs or crawl spaces, so this is mostly a northern problem.

How the job works

Make it safe
Power to the basement is shut off from a dry location before anyone steps into the water.
Pump and extract
Deep water is pumped out in stages, then extractors remove what is left.
Remove and clean
Soaked finishes and contents come out; walls and slab are cleaned and treated.
Dry and prevent
Dehumidifiers and air movers run until readings are dry. The pump, drainage or crack that caused it is repaired by a specialist.

What affects the cost

Every job is priced after an inspection, and your insurer may cover part of it. These are the factors that move the number:

Depth of water and size of the basement
Finished versus unfinished space
Water source and contamination
Contents that must be moved, cleaned or discarded
Sump pump or drainage repairs

What you can do before help arrives

Safe to do

Turn off basement power at the panel only if you can reach it without standing in water
Move valuables upstairs
Check that the sump pump has power and the discharge line is clear

Stop and call

Don't walk into standing water with the power on
Don't pump a deeply flooded basement all at once while the ground is saturated
Don't keep carpet or drywall soaked by groundwater or sewage

Questions about basement flooding cleanup

Does insurance cover a flooded basement?

It depends on the cause. A burst pipe is usually covered. Groundwater seepage and surface flooding are not covered by homeowners insurance, and sump pump failure or sewer backup is covered only if you bought that endorsement.

How long does a basement take to dry?

Usually five to seven days with professional dehumidifiers, longer for finished basements. Concrete and block release moisture slowly, so readings matter more than appearance.

How do I stop it happening again?

Common fixes are a battery backup for the sump pump, extended downspouts, regrading soil away from the house, and sealing or draining the wall-floor joint. A waterproofing contractor can assess which applies.

Where we can connect you

Independent companies in our network cover 20,778 ZIP codes in 47 states (as of October 5, 2026). Pick your state for local causes, rules and coverage: