Call and tell us what's going on, and we'll connect you with a plumber who covers Roseville. Most trouble here comes from decades-old pipe and a regional sewer that overflows toward the lake in heavy storms.
Post-war bungalows, brick ranches and their original pipe
Census estimates put Roseville's median year built at 1961. About 40% of homes went up from 1940 to 1959 and another 37% in the 1960s and 1970s, while barely 3% date from 2000 or later. Three in four units are detached single-family houses, and about two-thirds are owner-occupied.
Builders then typically ran galvanized steel or early copper supply lines, cast iron drains under the basement slab and a clay lateral out to the street. That's the era talking, not an inspection of your house. Galvanized pipe rusts inward until the upstairs shower fades when the washer fills. Clay joints shift and let roots in.
Martin district sewers and the Lake St. Clair overflow basin
Roseville's sanitary sewage flows through the Martin Drain Drainage District, shared with St. Clair Shores, to the GLWA plant in Detroit. When heavy rain overloads the district, its retention basin, built in the late 1960s on Bon Brae in St. Clair Shores, releases treated overflow into Lake St. Clair. A system that spills at the lake end can also push back toward the lowest drains in a basement. The National Weather Service counted southern Macomb among the worst-hit areas in the August 11, 2014 flood.
The city's 2025 water report says a backup claim has to be filed in writing within 45 days, under Public Act 222. It also tells residents to get a second opinion before having a sewer dug up, which is what a camera run is for. Our guide to sewage backup in the basement covers the first few hours.
Sewer water at a Roseville floor drain? Call (207) 419-2600
- Your call goes to an independent local plumbing company that does the work.
Gratiot Ave landmarks, lead lines and the Roseville building department
Most people know the city by Macomb Mall, Roseville High School and the public library at 29777 Gratiot Ave. All of Roseville is in ZIP 48066, and county Public Works counts about 69,354 residents in the Martin district across Roseville and St. Clair Shores.
Water is GLWA's, treated at the Lake Huron and Northeast plants. The 2025 report counts 60 lead service lines, 43 galvanized lines that need replacing, and thousands whose material hasn't been confirmed. Lead sampling came in at a 90th percentile of 9 parts per billion, under the action level of 12, with no sample over it. Michigan requires water systems to replace lead service lines at their own cost within 20 years, starting in 2021.
Permits and inspections run through the Roseville Building Department's online BS&A portal, and engineering plans go to the Engineering Department on Calahan Rd. State rules say plumbing work can't start until the permit is issued, unless the job only touches the working parts of a faucet or valve or clears a stoppage without altering the piping.
Repairs that fit 1950s and 1960s Roseville houses
These six cover most of the sewer, supply and water heater problems that come with the city's housing years. Each card links to a page on the work and its cost drivers.
Drain cleaning
About 77% of Roseville homes date from 1940 to 1979, when cast iron stacks and clay laterals were standard, so grease, scale and roots in that old pipe are the usual cause of a slow basement drain.
Drain cleaning: Read more
Sewer camera inspection
Roseville's own water report tells residents to get a second opinion before anyone excavates a sewer, and a camera run through the main cleanout is how that opinion gets made.
Sewer camera inspection: Read more
Basement flooding prevention
The Martin district's basin has to release treated overflow into Lake St. Clair in big storms, and the low floor drains of Roseville's post-war basements feel that pressure when the system backs up.
Basement flooding prevention: Read more
Repiping
Galvanized supply pipe was common in Roseville's post-war bungalows and ranches, and it narrows with rust from the inside until the upstairs shower fades whenever the washer fills.
Repiping: Read more
Main water line repair
Roseville's 2025 water report counts 60 lead service lines, 43 galvanized lines that need replacing and thousands still unidentified, so many owners have never seen what feeds their meter.
Main water line repair: Read more
Water heater installation
A replacement tank in a 1950s or 1960s Roseville basement often means updating old venting and the gas connection too, and the permit runs through the city's online BS&A portal.
Water heater installation: Read moreHow a visit works when a Roseville basement backs up
A Roseville backup usually starts at the lowest drain in a basement. Until the plumber you're connected with arrives, keep water use upstairs to a minimum. If you plan to file a backup claim with the city, take your photos first so cleanup doesn't erase the evidence.
On a backed-up basement, the plumber opens the main cleanout before anything else to see whether the stoppage is in the house or out in the lateral. If it's outside, a sewer camera inspection shows the pipe on screen. You get the findings, the options and what drives the cost before work starts, then the approved repair, a test with water running, and cleanup.
Roseville plumbing questions
Does a backwater valve make sense in a Roseville basement?
Yes, often, when the floor drain is the lowest opening in the house and the basement has taken sewer water before. The valve goes on the main building drain and closes when flow reverses out of the Martin district's lines. It needs a permit, and the plumber checks first where the laundry and sump discharge tie in, since water from inside the house can't get out while the valve is shut.
What should I do first if sewage comes up in my Roseville basement?
Stop running water upstairs, take photos and note the date. Roseville's water report says a written claim has to reach the city within 45 days of finding a backup. The EPA advises drying wet materials within 24 to 48 hours to limit mold. Then call, and we'll connect you with a plumber who can tell whether the cause is in your lateral or out in the system.
How do I know if my Roseville house has a lead service line?
Look where the pipe comes through the basement wall or floor below the meter. Lead is dull gray, soft enough for a key to scratch it bright silver, and a magnet won't stick. Galvanized steel holds the magnet; copper looks like a penny. The city's 2025 report still lists 60 lead lines, so a quick check is worth the minute.
