Water in the Basement After Heavy Rain: Who to Call

What are the 5 sources of water in the basement after rain?

The 5 sources of water in the basement after rain are listed below.

• A failed sump pump lets groundwater rise.
• A sewer backup pushes water up through the floor drain.
• Downspouts empty next to the foundation.
• Cracks in the walls or floor let groundwater seep in.
• A window well fills and leaks.

Is water in the basement an emergency?

Yes, water in the basement is an emergency when it rises, comes from the floor drain or reaches electrical outlets.

What should you do first when water comes into the basement?

The 4 things you should do first when water comes into the basement are listed below.

1. Keep away from water near outlets and switch off the breaker for the basement if it is safe to reach.
2. Check the sump pump and the floor drain.
3. Move stored items off the floor.
4. Call a plumber when the pump or drain is the source.

When should you call a plumber?

You should call a plumber in the 4 situations below.

• The sump pump does not run.
• Water rises from the floor drain.
• Water appears after every rain.
• The pump runs but the water rises.

Related plumbing problems and next steps

How much does the plumbing repair cost?

The plumbing repair cost depends on the source: sump pump replacement costs $645–$2,102, according to HomeAdvisor. Sump pump repair prices and local plumbers are on the sump pump repair in Lancaster County page.

What is a related plumbing problem?

A related plumbing problem is sump pump running constantly, and the sump pump running constantly guide lists its causes and first steps.

Written and fact-checked by the Lancaster PA Plumbers editorial team using HomeAdvisor, EPA WaterSense and City of Lancaster data. Last updated October 29, 2026.