Basement Flooding in Detroit, MI: Causes & Fixes

Why is water coming into my basement?Basement flooding is one of the most serious plumbing risks in Detroit. Intense storms have overwhelmed combined sewers and flooded large numbers of basements in recent years. Water can enter through floor drains as sewer backflow, seep in as groundwater when a sump pump fails, or come from inside plumbing failures. Protecting a Detroit basement usually means addressing both sewer backflow and groundwater, because storms often bring both at once.

Act now

Standing water near electrical equipment is dangerous, and every hour of flooding increases damage. Act immediately.

Call (866) 417-0220

Why it happens in Detroit

Combined sewer backups

Heavy rain fills the combined system and forces water back through basement floor drains.

Sump pump failure

Power outages and worn pumps fail during storms.

Downspouts and grading

Water directed toward foundations overwhelms drainage.

Cracked laterals letting groundwater in

Damaged laterals take in groundwater during storms, adding to sewer load and backups.

Signs to watch for

Water around the sump pit or floor edges
Water coming up through the floor drain
Water near the water heater or washer
Damp walls after rain
Musty smell and efflorescence on walls

Emergency, or can it wait?

Call right away if…

Water near outlets, the panel or appliances
Sewage in the basement
Water rising during a storm

Usually OK to schedule if…

Minor dampness after rain with no standing water

What Detroit homeowners can check first

Is the water coming from the floor drain or walls?
Did it start during heavy rain?
Is the sump pump running?
Is there a backwater valve?
Check whether downspouts drain into the sewer or away from the house
Test the sump pump with a bucket of water before storm season

Unfinished basement with exposed pipes — Stock photo: Oleksandr Chernobai / Unsplash

How our plumbers fix it

Test the sump pump, float and check valve.
Inspect the floor drain and main line.
Check supply lines, water heater and washer hoses.
Evaluate downspouts and grading.

Basement Flooding in Detroit: questions

What protects Detroit basements from flooding?

A backwater valve stops sewer backflow, a sump pump with battery backup handles groundwater, and downspouts should discharge away from the foundation.

Is Detroit basement floodwater dangerous?

Sewer backflow is contaminated; avoid contact, keep children and pets away and discard soaked porous materials.

Will insurance cover a Detroit basement flood?

Sewer backup and flooding usually require separate coverage; check your policy.

Does Detroit offer help with backwater valves?

Programs have been offered at times in Detroit and surrounding communities; check with your water and sewer department for current options.

Next steps

Sump Pump Repair in DetroitSump pump repair restores a basement or crawl space pump that collects groundwater in a pit and pumps it away from the foundation.Sump Pump InstallationSump pump installation involves a sealed or lidded basin set into the floor, a properly sized pump, a check valve, discharge piping routed away from the foundation, and a dedicated outlet.Main Sewer Line CleaningThe main sewer line carries all of a home's wastewater to the city sewer or septic tank.Emergency PlumbingEmergency plumbing is urgent repair work for a problem that is actively causing water damage, a sanitation hazard, a gas risk or a total loss of water or drainage in a home.

National guide: Basement Flooding · Plumbing in Detroit