Basement Waterproofing in Macomb County, MI | Mansour's
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Serving Macomb County from 8 Mile to Romeo

Waterproofing, Plumbing & Excavation Experts in Macomb County

Macomb County is our home county, and it's really three different places underground. South Macomb is older houses on flat clay and overloaded sewers. The middle is the postwar suburbs strung along the Clinton River and its branches. The north is farms, small towns and newer subdivisions, many of them on wells and septic. We work all three from Shelby Township.

25-Year Warranty
24/7 Emergency
Licensed & Insured
4.9 Google Rating
Warren Sterling Heights Clinton Township Shelby Township Mount Clemens St. Clair Shores Harrison Township Washington Township

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Basement water across Macomb County depends on which Macomb you live in

People talk about Macomb like it’s one place. Underground it’s at least three, and the right fix for a wet basement in Eastpointe is often the wrong one in Armada.

The south end, older homes and overloaded sewers

Warren, Eastpointe, Roseville, St. Clair Shores and the south side of Clinton Township filled in during the postwar years, with blocks of brick ranches and bungalows on concrete block. The ground is flat lake-plain clay. Water that soaks in stays put, and water that runs off goes into sewers that were sized for a different century of rainfall.

In August 2014 the National Weather Service measured 5.2 inches in Warren in a day. The mayor said roughly 18,000 Warren homes had some flood damage, and a 100-year-old woman died in her flooded basement. Then June 2021 hit the same region. Macomb was left out of the first federal declaration and was added in September after the state appealed. Most of that damage in south Macomb was sewer water coming up through floor drains.

The county has been working on the overflow side. The Chapaton basin in St. Clair Shores was expanded and reopened in 2025 to hold more combined sewage before it reaches the lake. That’s a public fix for a public problem. For your own basement, a backwater valve on the main line is still the thing that actually keeps sewage on the street side.

The middle, the Clinton River country

Sterling Heights, Clinton Township, Utica, Mount Clemens and Shelby Township grew up along the Clinton River and its North and Middle branches. Most of the housing here went up from the 1950s through the 1990s, block walls early on and poured concrete later. The river is a real factor for homes near it. Mount Clemens has flooded from it since long before the 1947 flood that led to the spillway. In April 2026 high water surrounded a senior apartment building in Utica. For most houses in these towns, though, the problem isn’t the river. It’s clay, aging drain tile, and a sump pump that was never given a backup.

There’s a cross-county wrinkle, too. Oakland County’s George W. Kuhn basin releases treated overflow into the Red Run, which flows into Macomb and on to the Clinton. Macomb officials have pushed back on that for years. It matters for the river more than for any single basement, but it’s part of why people here watch the Clinton closely.

The north, wells, septic and newer subdivisions

North of roughly 26 Mile, places like Washington Township, Romeo, Armada, Ray and Bruce are a mix of farms, old village houses and 1990s and 2000s subdivisions with deep basements and egress windows. Many homes are on private wells and septic systems overseen by the county health department. Here we see more settling backfill, more water at window wells, and more care needed about where a sump pump discharges. You don’t want it anywhere near your drain field.

What we’d tell anyone in Macomb

Figure out which water you have before you pay anyone. Water that seeps through walls or the floor joint is groundwater, and interior drain tile with a sump is usually the answer in this clay. Water that comes up the floor drain and smells is sewage, and it needs a valve, not a system. Water that only shows up in one corner after a downpour is very often a downspout. Fix that yourself first, and call us if it doesn’t solve it.

Basement Waterproofing Services in Macomb County

Complete Home Services in Macomb County

From basement waterproofing and excavation to drain cleaning and sewer repair, we offer comprehensive services to protect your Macomb County home.

Interior Waterproofing

Complete interior drainage systems with French drains, vapor barriers, and waterproof coatings.

Exterior Waterproofing

Foundation excavation and waterproof membrane installation to stop water at the source.

Sump Pump Systems

Primary and water backup sump pump installation, repair, and maintenance services.

Hydrojet Drain Cleaning

High-pressure hydro jetting and professional drain cleaning for stubborn clogs.

Sewer Backflow Preventers

Protect your home from sewage backup with professional backflow preventer installation.

Plumbing Services

Full-service residential plumbing including repairs, installations, and emergency service.

Foundation Crack Injection

Polyurethane and epoxy injection to permanently seal foundation cracks and stop leaks.

Sewer Repair & Replacement

Complete sewer line diagnosis, repair, and replacement services with minimal disruption.

Sewer Video Inspection

HD camera inspections to diagnose sewer and drain problems accurately before repair.

Excavation Services

Professional excavation for foundation repair, sewer access, and drainage solutions.

Exterior Drainage

French drains, dry wells, downspout extensions, and yard grading solutions.

Electric Eel / Snaking

Powerful mechanical snaking to clear tough clogs in drains, toilets, and main lines.

Sewage Ejector Pumps

Installation and repair of ejector pumps for basement bathrooms and laundry rooms.

Flood Restoration

24/7 emergency flood response with water extraction, drying, and restoration services.

Thermal Imaging

Infrared technology to detect hidden water leaks and moisture without destruction.

Your Trusted Local Home Service Experts

Our shop is in Shelby Township and most of our work is within a half hour of it, so Macomb basements are what we know best. We've been at it since 2004, we'll tell you when you don't need us, and when you do, the four things below come with every system.

25-Year Transferable Warranty

Our industry-leading warranty protects your investment and transfers to future homeowners.

24/7 Emergency Response

Water damage doesn’t wait – neither do we. Call anytime for immediate assistance.

Licensed & Fully Insured

Complete peace of mind with fully licensed, bonded, and insured professionals.

Flexible Financing Available

Make home protection affordable with easy payment plans and financing options.

Professional excavation in Macomb County
Interior waterproofing
Sump pump installation
1,600+
Projects Completed

What Macomb County Homeowners Say

Don’t just take our word for it – hear from our satisfied customers.

“We'd been dealing with a wet basement for years before calling Mansour's. They assessed the situation, recommended an interior waterproofing system, and completed the job on time. Not a single issue since. Wish we'd called them sooner.”

S
Steven W.
Macomb County, MI

“Our sump pump failed during a heavy storm and the basement started taking on water fast. Mansour's responded within hours, installed a new primary and backup sump pump system, and had everything under control the same day. Incredible response time.”

K
Karen M.
Macomb County, MI

“Had recurring drain backups in our home for over a year. Mansour's ran a camera inspection, found the root intrusion, and cleared everything with hydro jetting. Drains have been perfect ever since. Very professional from start to finish.”

T
Thomas B.
Macomb County, MI

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Macomb County Services FAQ

Get answers to the most common questions Macomb County homeowners ask about our waterproofing, plumbing, and excavation services.

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Older sewers and less room for the water to go. A lot of south Macomb went up in the decades right after the war, and parts of the area still deal with combined sewer overflows into Lake St. Clair. In a big storm, the pipes fill and the extra water comes back up floor drains. In August 2014, Warren measured 5.2 inches and its mayor said about 18,000 homes had some flood damage.
No. Most of southern and central Macomb is flat lake-plain clay that holds water against your foundation for days. Head north toward Romeo and Washington Township and you get more varied glacial ground, with sand and gravel in places. Clay mostly means slow seepage and hydrostatic pressure. Sandier ground means water arrives faster but also drains away faster.
It changes where water can go. A sump should never discharge into or near a septic field, and it shouldn't be tied into the septic system either. We route discharge away from the tank, the drain field and the well. Washington Township and the other northern communities rely on private systems regulated by the county health department, so we plan around those.
Mostly homes near the main stem and the North and Middle branches in Clinton Township, Mount Clemens and Utica, plus low lots in Sterling Heights. In April 2026 high water surrounded a senior apartment building on Greely Street in Utica. Most Macomb homes are nowhere near the river, though, and their water problems come from clay and sewers instead.
Yes. Near Lake St. Clair the water table rises and falls with the lake, and a lot of those homes sit only a few feet above it. A sump on a canal lot may run constantly in a high-water year. We size pumps for that, add a backup, and are careful about sending discharge somewhere it won't just flow back toward the foundation.
All of it. From our shop in Shelby Township, most of the county is within 30 to 40 minutes, and the closer towns like Sterling Heights, Utica, Macomb Township and Washington Township are less than that. We answer emergency calls around the clock at (586) 345-7292.
Probably. The county's work helps, like the Chapaton basin in St. Clair Shores that was expanded and reopened in 2025, but it's built to cut overflows to the lake, not to guarantee your floor drain stays dry. A backwater valve on your own main line is the one piece of protection that's yours. If you've ever had sewer water in the basement, it's the first thing we'd install.
Crack injection takes a few hours. A sump replacement is usually done the same day. An interior drain tile system on a regular ranch or colonial is a few working days. Exterior excavation takes longer and depends on depth, access and weather. You'll get the timeline with your free estimate.
Yes, through Enhancify, and a lot of Macomb homeowners use it after a storm when insurance covers less than they hoped. The estimate is free. We'll walk through what drives the scope, such as wall length, how deep the dig would be, and whether the floor has to come up, before you sign anything.

Serving Macomb County & Surrounding Areas

In addition to Macomb County, we provide waterproofing and plumbing services throughout Southeast Michigan.

Shelby Township

Macomb County

Sterling Heights

Macomb County

Clinton Township

Macomb County

Utica

Macomb County

Rochester Hills

Macomb County

Troy

Macomb County

Washington Township

Macomb County

Ray Township

Macomb County

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