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Water Damage Restoration · Ann Arbor, MI

Water Damage Restoration in Ann Arbor, MI

Ann Arbor has a separated sanitary sewer, a creek buried under downtown, five mapped floodplains, and 2,744 homes whose only defence against footing-drain water is a sump pump.

Quick answer: Water restoration in Ann Arbor follows the standard sequence — stop the source, extract, dry and moisture-map, control moisture, repair — but no other city in this metro has re-engineered its homes the way Ann Arbor has. Until roughly 1980 it was legal and convenient here to connect a house’s footing drain straight into the sanitary sewer, because both sit at about the same depth. Storms in 1998 and 2000 put sewage into 490 basements, a city task force found that storm water made up an estimated 70 to 90 percent of the flow in the sanitary sewers, and in 2001 the city enacted a footing drain disconnection ordinance. Roughly 16,000 houses were identified as candidates and 2,744 sump pumps were installed before council imposed a moratorium in September 2012. The practical result today is a city where thousands of basements are kept dry not by gravity but by a pump the homeowner owns and maintains — on a system where the city’s own evaluation found about two percent of installations were faulty and where the recommended water-powered backup pumps were never funded.

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TBy the Tucson Restoration Pros team  ·  Researched & reviewed for Ann Arbor accuracy  ·  Last reviewed September 2, 2026

Ann Arbor is the most mixed housing stock of the cities covered here and the least like a conventional suburb. Its median unit dates from 1971 but the distribution is remarkably flat: 14.8 percent predates 1940, the 1960s are the largest single decade at 18.5 percent, and 2.6 percent has been built since 2020. Only 41.6 percent of units are detached single-family, 54.5 percent are renter-occupied, and one unit in ten sits in a building of fifty or more. Underneath all of it runs a drainage system unlike anywhere else in the metro: a separated sanitary sewer of more than 500 miles, five mapped tributary floodplains, and a creek that was put in a pipe a century ago and now runs beneath the downtown.

Why Ann Arbor homes take this damage

2,744 homes on a pump

The footing drain disconnection programme reran thousands of Ann Arbor basements onto sumps between 2001 and the 2012 moratorium. Those pumps are homeowner-owned and homeowner-maintained; the city’s wet-weather evaluation found roughly two percent of installations faulty, and council never followed through on the recommendation to provide water-powered backup pumps. When the power goes out in a summer storm, that is the failure mode.

Allen Creek runs under downtown in a pipe

Allen Creek, a Huron River tributary, is now almost entirely underground in concrete pipes — enclosed between 1922 and 1926. Its main branch runs north from Pioneer High School, parallel to the Ann Arbor Railroad, and spills into the Huron just south of Argo Dam, passing beneath much of downtown and parts of the Old West Side. Three tributaries — Eberwhite, Murray-Washington and West Park-Miller — feed into it from the west.

Five mapped floodplains and the Huron

Within the city, Allen, Malletts, Millers, Swift Run and Traver all have mapped floodplains, alongside the Huron River itself. Ann Arbor regulates them through a floodplain management overlay district, participates in the National Flood Insurance Program, and improved to Community Rating System Class 6 on 1 October 2018 — a 20 percent flood insurance discount for the community.

How water damage restoration works

Stop the source & make it safe

Shut the water off at the main or the fixture valve, cut power to wet areas at the breaker, and keep people and pets off wet flooring. Describe the source when you call — clean supply water, storm water and sewer backup each need a different response — so the right company is sent. In most Southeast Michigan houses the main shutoff is in the basement on the street-facing wall where the service enters.

Extract standing water

Truck-mount and portable extraction pull water off flooring, out of carpet pad and from under cabinets before it wicks up walls. In a Michigan house that means clearing the basement first, because that is where the furnace, the water heater, the panel and the laundry sit, and where water arriving from below collects.

Structural drying & moisture mapping

Air movers and dehumidifiers dry the structure while moisture meters track hidden water in walls, ceilings, subfloor and basements, with daily readings. Plaster over wood lath in prewar stock holds water far longer than modern drywall, and open wall cavities in balloon-framed houses carry water down inside a wall away from where it entered — so it has to be found before it can be dried.

Moisture control & repairs

Antimicrobial treatment where needed, then reconstruction of drywall or plaster, flooring and cabinets once materials hit dry standard — performed by a Michigan-licensed residential builder or maintenance and alteration contractor, and permitted through the local building department where the work requires it.

June 2021, and what the city tracks

The storm on the evening of 25 June 2021 into the early hours of the 26th is the reference event here as it is across Southeast Michigan. The city’s own account is that Pittsfield Village and the surrounding neighbourhoods on the southeast side were the most impacted areas in the city, with scattered flooding and backups reported elsewhere, and that states of disaster were declared at local, state and federal level. Ann Arbor commissioned an outside engineering analysis of the southeast-side backups specifically and published the report and executive summary. Day to day, the city says it tracks instances of basement flooding to identify causes and potential patterns, takes sanitary backup reports on 734.794.6320 during business hours and 734.994.2840 out of hours, and requires water-powered backup systems to be tested by a licensed certified plumber and inspected by the city every three years. It also issues a warning most homeowners here have not acted on: check your policy, because backup coverage is often not included in a standard homeowners policy and has to be requested as a special rider.

Claims against the city for a sewer backup

If the water came out of the public sewer rather than your own plumbing, Michigan has a separate and unforgiving track. Sewage backups are governed by the sewage-disposal-system provisions of the governmental immunity act, and MCL 691.1419 requires written notice to the governmental agency within 45 days of the day the damage was discovered — the notice has to carry your name, address and telephone number, the address of the affected property, the date you discovered the damage and a brief description of the claim. Miss the 45 days and the claim is generally gone. Even on time, the standard is high: you have to show a defect in the system that the agency knew or should have known about, that it failed to fix in a reasonable time, and that the defect was a substantial proximate cause — statutorily defined as 50 percent or more — of the damage. The agency then has 45 days to reach agreement before suit may be filed. None of that is a reason to wait on drying: mitigation and the claim run on separate tracks, and Detroit’s own water department tells residents not to wait for the claims process before replacing a furnace or water heater.

Ann Arbor neighbourhoods & ZIP codes we cover

Licensed local companies in the network work every part of Ann Arbor — the Old West Side, the Old Fourth Ward, Water Hill, Burns Park, Pittsfield Village, Georgetown, Germantown, Northside, Orchard Hills, Glacier Highlands and Virginia Park — and the ZIP codes below. Not sure which company covers your street? Call the 24/7 line and it routes to one that works your area.

48103481044810548108

Water Damage insurance claims in Michigan

Sudden, accidental water damage — a burst supply line, a failed water heater, an appliance hose — is generally covered under a standard Michigan homeowners policy, while gradual seepage is usually excluded. The part that catches Michigan homeowners out is backup: the Department of Insurance and Financial Services states plainly that water and sewer backup coverage is not automatically included in a homeowners or renters policy and has to be added by endorsement, and that the endorsement typically excludes flood and will not pay to replace the failed sump pump itself. Surface flooding needs separate National Flood Insurance Program coverage. On timing, MCL 500.2006 requires an insurer to specify in writing what constitutes a satisfactory proof of loss within 30 days of receiving a claim, and benefits supported by that proof are timely if paid within 60 days — past that, the statute attaches 12 percent simple interest. Michigan also gives you a year to sue under MCL 500.2833(1)(q), and that clock is tolled from the moment you notify the insurer until it formally denies liability. If you and the carrier disagree on the amount rather than the coverage, the same section builds in appraisal: either side can demand it in writing, each names an independent appraiser within 20 days, and if the two cannot agree on an umpire within 15 days a circuit judge in the county of the loss appoints one.

We are a referral and dispatch service, not a public adjuster or an insurer. The independent, licensed company you are matched with documents the loss and works your claim scope with you — always confirm Michigan residential builder or maintenance and alteration licensing, insurance and pricing directly with them.

Water in your Ann Arbor home right now?

Call the 24/7 line and we connect you with a licensed local restoration company that works your part of Ann Arbor and the Detroit metro. Free to request, no obligation — the company you are matched with handles the inspection, the pricing and the work.

Ann Arbor water damage FAQs

What is the footing drain disconnection programme and does it affect my house?
It is the reason thousands of Ann Arbor basements depend on a sump pump. Until about 1980 footing drains here were routinely connected to the sanitary sewer, because both run at similar depths and gravity does the work. After storms in 1998 and 2000 flooded 490 basements with sewage, a city task force concluded storm water was making up an estimated 70 to 90 percent of sanitary sewer flow, and a 2001 ordinance began severing those connections and rerouting footing drains to a basement sump and pump instead. About 16,000 houses were identified; 2,744 sump pumps were installed before council imposed a moratorium in September 2012. A 2014 advisory committee found the original five target areas no longer needed further disconnections and recommended any future programme be voluntary and incentivised. Litigation over whether the forced installation was a taking ran until the federal appeal was decided against the homeowners in January 2019. If your house was disconnected, you own that pump and its maintenance — and the city never funded the backup pumps its own study recommended.
Is Ann Arbor’s sewer combined, like Detroit’s?
No, and the city says so directly: Ann Arbor’s sanitary sewer collects wastewater and only very limited amounts of storm water and infiltrated ground water through more than 500 miles of pipe, and the city explicitly distinguishes it from a combined sewer designed to carry large volumes of storm water. Ann Arbor also runs its own water and wastewater treatment rather than buying from the regional authority, drawing most of its drinking water from the Huron River at Barton Pond and the rest from wells. It publishes its sanitary sewer overflows, and the causes on that log are instructive for homeowners — tree roots, grease, so-called flushable wipes, debris and pipe breaks appear far more often than pure capacity. That is the same list of things that blocks a private lateral.
What should I do first when water floods my Ann Arbor home?
Shut the water off at the main or the fixture valve if you can safely reach it, cut power to any wet area at the breaker, and keep people and pets off wet flooring. In most Southeast Michigan houses the main shutoff is in the basement on the street-facing wall where the service enters. Photograph and video everything before anything is moved — that documentation is what your adjuster works from and what a municipal claim would rest on. Then call the 24/7 line so a licensed local company can start extraction. If the water came up through a floor drain or a toilet rather than down from above, treat it as contaminated and stay out of it.
How fast can someone reach my Ann Arbor address?
The independent companies in the network run 24 hours a day and same-day response across the Detroit metro is common, but exact timing depends on the contractor and where you are — it is never guaranteed. The honest caveat for this region is that the events which flood Ann Arbor basements flood everyone else’s at the same moment: in June 2021 more than six inches of rain fell across Southeast Michigan in twelve hours and tens of thousands of households were affected simultaneously. Calling early in an event genuinely changes what is available.
How long will drying take?
Extraction is usually same-day. Structural drying typically runs three to five days with air movers and dehumidifiers, and longer where water reached wall cavities, a ceiling, subfloor or a finished basement. Older Southeast Michigan construction slows it down — plaster over wood lath holds water far longer than modern drywall, and open framing cavities let water travel down inside a wall away from where it entered. The company takes daily moisture readings and only pulls equipment once materials hit dry standard. Pulling air movers early because they are loud is the most common reason a dry-out fails and resurfaces as a mold problem weeks later.
Will my homeowners insurance cover it?
Sudden, accidental water damage — a burst supply line, a failed water heater, an appliance hose — is generally covered under a standard Michigan homeowners policy, and gradual seepage generally is not. The one that catches people out here is backup: Michigan’s Department of Insurance and Financial Services states that water and sewer backup coverage is not automatically included in a homeowners or renters policy and has to be added by endorsement, and that the endorsement typically excludes flood and will not pay to replace the failed sump pump itself. Surface flooding needs separate National Flood Insurance Program cover. Read the declarations page rather than assuming.
Is the company you connect me with licensed?
The companies in the network are independent, licensed and insured. Michigan licenses residential contractors through LARA under the Occupational Code: a residential builder or residential maintenance and alteration contractor licence is required for repair, alteration and reconstruction of a one- or two-family dwelling (MCL 339.2401), and the maintenance and alteration licence names the specific craft — MCL 339.2404(3) lists carpentry, masonry, roofing, siding and gutters, insulation work, house wrecking and, notably for this trade, waterproofing a basement. Licences run three years, the licensee must keep a place of business in Michigan, and Michigan holds no reciprocity agreement with any other state — an out-of-state contractor has to qualify here from scratch. Only very small jobs are exempt: MCL 339.2403(f) excuses a project whose aggregate contract price for labour and materials is under six hundred dollars, and splitting a bigger job into small contracts to reach that figure is expressly barred. You can verify a licence with LARA before work begins — we are a dispatch and referral service, not the contractor.

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About this guide

Researched and reviewed for Southeast Michigan accuracy by the Tucson Restoration Pros team, drawing on ANSI/IICRC S500 water-restoration standards, Michigan DIFS consumer guidance on water and sewer backup coverage, EPA moisture and mold guidance, Michigan LARA residential builder licensing rules and NWS Detroit/Pontiac climate normals and storm summaries. We connect you with independent, licensed local companies — we are a referral service, not a contractor.