Ann Arbor particulars
Before you sign for a water softener in Ann Arbor, ask the contractor what hardness they measured at your tap. The city already treats its water with softening, ozone, UV and activated carbon, drawing on the Huron River and groundwater wells, and the 2025 report gives an average distribution hardness of 126 mg/L, with a range of 74 to 180, or about 7.4 grains per gallon. On lead, the city says it has no lead service lines and none of unknown material out of 25,633 as of December 31, 2025, with 96 percent verified and 911 still needing inspection.
It notes that privately owned galvanized lines once connected to lead remain a separate concern. A dashboard sits at a2gov.org/lcr (we read this through a search summary). The housing is mixed: 121,179 people live here, 64.3 percent of homes predate 1980, and the median home value is $435,100. On a house at that value, ask for the permit and the price in writing. Permits come from Building and Rental Services at 301 E.
Huron St, 734-794-6000, applied for online through the STREAM system (confirm before calling). Ann Arbor Township is a separate jurisdiction. The city has no plumbing-specific fee table that we found, so ask the office what a permit costs. Ypsilanti is the nearest neighbour in our data.
Water heater repair in Ann Arbor: what to know
The city's 2025 report gives an average distribution hardness of 126 mg/L, with a range of 74 to 180, after softening, ozone, UV and carbon treatment. No source we hold links that figure to heater wear, so use it only to describe the water when you call. Ann Arbor is a local permit jurisdiction. Building and Rental Services, at 301 E. Huron St, 734-794-6000, takes applications through the online STREAM system, and we found no plumbing fee table for the city.
Ann Arbor Township is a separate jurisdiction (3792 Pontiac Trail, 734-663-3418), so the right office depends on which side of the line your house sits. For the repair itself, the statewide estimate is $160 to $805 per repair; it is a model, not a quote.
Permits for water heater repair in Ann Arbor
Michigan exempts repairs to the working parts of a faucet or valve and clearing stoppages, as long as the existing piping is not altered (LARA's page reached us as a search summary, so confirm locally).
Many cities run their own building department, so start by asking the City of Ann Arbor building department who issues plumbing permits. Washtenaw County also publishes building and permit information. Washtenaw County: Washtenaw County Building Inspection
Water heater symptoms that need a call today
- You smell gas near the heater.
- Water is pooling under the tank and you cannot stop it.
- The relief valve is discharging steadily.
- Lukewarm water with no leak and no gas smell.
- A heater that takes longer than it used to.
Before you call about the heater
Try this first: ask the city whether your address sits inside its limits, then ask the plumber to name the office that will issue the permit.
- Check the breaker on an electric heater, or the pilot window on a gas heater, without opening any panel.
- Check whether water under the tank is coming from the tank or from a pipe above it.
- Do not relight a gas pilot yourself; DTE says a licensed professional should relight it.
- Find the age on the tank label, and know where the main water valve is in case the tank leaks while you wait.
What water heater repair costs
The estimate below is the Michigan-wide one, adjusted for Michigan wages and not for Ann Arbor in particular. The same table is on the water heater repair page. How we estimate costs. Prices as of Oct 19, 2026.
| Item | Figure | What it is |
|---|---|---|
| Estimated range, not a quote | $160 to $805 per repair | Built from 3 national published ranges, adjusted by the Michigan plumber wage ratio (1.07). Michigan company prices are shown separately. |
| Published by 1 Michigan plumbing company, collected Oct 19, 2026 | Starting at $400, about 1 to 3 hours | One Michigan company publishes a repair price, which is too few to call a range. Published prices, not quotes. |
| Plumber wage, Michigan mean | $37.14 an hour | What Michigan plumbers are paid (BLS, May 2025), not what you are charged. |
| Water heater permit fee, Grand Rapids (replacement, not repair) | $21, plus $52 application | Effective July 1, 2026. Other cities differ. |
Estimated range. Built from national published ranges (3 sources), adjusted by Michigan's plumber wage ratio to the US (1.07, BLS May 2025), plus the local permit fee where the city publishes one. Not a quote. Where Michigan companies publish prices we show them separately. Published company prices for this job: 1 Michigan company, read Oct 19, 2026. Full method.
Questions about water heater repair
What is the average cost to repair a water heater?
Our estimate is $160 to $805 per repair, and it is a model, not a quote. It rests on national published ranges adjusted for Michigan plumber wages, and the cost table shows the one Michigan company that publishes a repair price. Ask for a diagnostic fee and a written price for the specific part.
Is it worth it to repair a hot water heater?
Usually yes for a single failed part on a younger tank, and usually no for a leaking tank. The Department of Energy puts tank heaters at roughly 10 to 15 years (seen only in a search summary); ask your plumber to price the repair next to a new unit.
Do you call a plumber or electrician for a water heater?
For a gas heater, LARA's mechanical FAQ says replacement takes a mechanical license and a plumbing contractor's license, with both permits; confirm that with LARA. For an electric heater, ask your local building department.