Detroit Flood Contractors and Local Resources: Your Complete Directory

Finding a qualified contractor after a flood — or when you're ready to protect your home before the next one — is harder than it looks. Detroit's flood contracting market includes excellent specialists and, unfortunately, a significant number of storm chasers who appear after every major flood event. This guide covers how to find and vet licensed contractors, what questions to ask, and the government and nonprofit resources available to Wayne County homeowners.

Types of Contractors You May Need

How to Find and Verify Licensed Contractors in Michigan

Michigan LARA License Lookup

The Michigan Department of Licensing and Regulatory Affairs (LARA) maintains the official database of licensed contractors and plumbers. Before hiring any contractor for flood work, verify their license status:

• Michigan LARA Contractor License Verification
• Michigan LARA Plumbing License Verification

A Michigan Residential Builder License is required for basement waterproofing and general flood mitigation work in residential structures. A Michigan Master Plumber License is required for any work on the building drain, house trap, or sewer lateral — including backwater valve installation.

Detroit Building Department Permit Verification

Any licensed contractor doing flood work in Detroit should pull the required building or plumbing permits. You can verify permit status through the City of Detroit Buildings, Safety Engineering, and Environmental Department (BSEED):

• BSEED Permit Search: detroitmi.gov/departments/bseed
• Unpermitted work can void insurance claims and create problems at resale

Michigan Attorney General Contractor Vetting

Flood-related contractors are a high-fraud sector, particularly in the days and weeks after major flood events. Before signing any contract:

• File a complaint check at michigan.gov/ag — search for contractor name and company
• Verify BBB accreditation at BBB Detroit
• Never pay more than 10–25% upfront; never pay in full before work begins
• Get a minimum of three written bids for any project over $2,000
• Do not let a contractor pressure you to sign immediately after a flood event

Key Questions to Ask Before Hiring

For backwater valve / plumbing work:

• Are you licensed as a Michigan Master Plumber?
• Will you pull a plumbing permit from the City of Detroit (or relevant municipality)?
• What type of backwater valve do you recommend — inline gate valve or flapper-type — and why?
• Is the valve compatible with my existing pipe material (cast iron, clay, PVC)?
• What's the warranty on labor and parts?

For waterproofing work:

• Are you recommending interior drain tile, exterior excavation, or both?
• What specifically is causing water entry — hydrostatic pressure, surface runoff, crack infiltration?
• Is your warranty transferable at sale?
• Are you IICRC certified (for water damage restoration)?
• Do you carry general liability and workers' comp insurance in Michigan?

DWSD and Emergency Flood Response Contacts

Detroit Water and Sewerage Department (DWSD)

• Emergency / Sewer Backup Report Line: 313-267-8000 (24/7)
• Website: detroitmi.gov/DWSD
• Report basement sewer backup immediately — creates a documented record needed for rebate programs and future assistance eligibility

Wayne County Water Resource Commissioner

• Manages drains, storm sewers, and flood control in unincorporated Wayne County areas
• Website: waynecounty.com/elected/water
• Contact for drainage complaints and information on green infrastructure programs

Great Lakes Water Authority (GLWA)

• Regional interceptor sewer system; manages large-scale capacity and CSO projects
• Website: glwater.org
• GLWA is not the right contact for individual backup complaints — that's DWSD for Detroit properties

Michigan and Wayne County Financial Assistance Programs

After a Flood: Immediate Response Checklist

1. Don't enter standing sewer backup water: Sewer backup water is Category 3 biohazard (blackwater). Do not wade through it without protective gear (waterproof boots, gloves, N95 mask minimum).
2. Shut off power at the panel if safe to do so: Only if you can reach the panel without stepping through water.
3. Document with photos and video before any cleanup: Required for insurance adjuster review. Document all damaged items.
4. Call DWSD at 313-267-8000 to report the backup: Creates an official record.
5. Call your insurer within 24–48 hours: Report claim, request adjuster. For sewer backup claims, file under your water backup endorsement.
6. Hire an IICRC-certified restoration company within 24–48 hours: Mold begins growing within 24–48 hours in wet conditions. Find certified firms at iicrc.org/find-a-pro.
7. For post-disaster FEMA assistance: Register at disasterassistance.gov if a presidential disaster declaration has been issued for Wayne County.

SEMCOG Regional Resources

The Southeast Michigan Council of Governments (SEMCOG) publishes regional flood resilience data, watershed plans, and green infrastructure guidance for Wayne, Oakland, Macomb, Monroe, St. Clair, Washtenaw, and Livingston counties:

• semcog.org — regional planning and infrastructure data
• SEMCOG's Water Resources Planning team coordinates flood mitigation at the regional level and can direct homeowners to local municipality programs

Run a Free Flood Risk Assessment

Before engaging contractors or deciding on a mitigation approach, use our Free Flood Risk Assessment to get a property-specific risk score. It takes 5 minutes and generates a prioritized list of recommended mitigation actions for your specific home type, basement configuration, and proximity to Detroit-area waterways — giving you a clear brief to take into contractor conversations.