Bloomington Sewer & Drain Cleaning
Bloomington has one of the most specific, documented sewer stories in the Twin Cities: the City's own utilities division points to a particular connection method used during the 1960s building boom as a common source of failure. Combined with a city where 74% of the housing stock was built before 1970 and 89% before 1990, that's not a coincidence — it's a predictable pattern in homes of a certain age. Hiawatha Sewer has worked on exactly this era of Bloomington housing for three generations, across more calls in this city than anywhere else we serve.
Why Bloomington Homes Back Up
A documented 1960s connection failure. Bloomington's own utilities division identifies a specific weak point: the tar compound commonly used to seal the joint between the home's sewer service and the connection during the 1960s tends to shrink over time. That shrinkage opens a gap, and that gap is a common entry point for tree roots. If your home was built or connected during that era, this — not a random clog — is often the real reason a "simple" backup keeps coming back.
Aging clay and cast-iron lines. Bloomington's own guidance identifies clay and cast iron as materials commonly found in older residential sewer services. They fail differently: clay pipe typically lets roots and groundwater in at its joints, while cast iron corrodes and narrows from the inside, roughening the pipe wall and giving debris more to catch on. Either one can eventually develop an offset joint or a fully collapsed section, though that's the exception rather than the rule.
Settled or "bellied" lines. Bloomington sits on a mix of glacial soils that varies by neighborhood — not one uniform "clay soil" the way it's sometimes described. What's consistent everywhere is that wet or poorly compacted backfill, freeze-thaw cycles, and decades in the ground can let an old, segmented pipe settle or separate at a joint, creating a low spot (a "belly") where waste collects instead of flowing through. That shows up as a clog that returns no matter how often the line is cleaned — cleaning alone can't fix a pipe that's lost its slope.
Groundwater, sump pumps, and improper connections. Bloomington requires foundation sump-pump discharge to go outside the home — never into a floor drain or laundry tub — and recommends discharging at least 10 feet from the foundation so the same water doesn't just find its way back to the sump. A pump that's improperly connected to the sanitary sewer, or a lateral with a cracked or open joint, can let groundwater into the line — which is why backups sometimes get noticeably worse after a heavy rain or spring thaw.
Grease, wipes, and accumulated debris. Older pipe is less forgiving of what goes down the drain. A corroded cast-iron interior, an offset joint, or roots already working into a clay line all give grease, wipes, and food waste something to catch on and build up around — turning what would be a minor issue in newer pipe into a recurring one.
Whose Line Is It?
Bloomington draws the same line most Twin Cities suburbs do: the City is not responsible for cleaning, maintaining, or repairing the individual service connection between a home and the City's main — that's the property owner's responsibility. If you're not sure whether a backup is on the City's side or yours, Bloomington Utilities can check their main (952-563-8777 during business hours, 952-563-4905 after hours). If the main is clear, the problem is in your private line — which is ours to diagnose and fix.
How We Help
We restore drainage first, then figure out whether the situation calls for anything more.
Main sewer line cleaning clears the immediate clog — roots, grease, debris — and gets the line flowing again. For a lot of calls in Bloomington, cutting through a root mass at a failed 1960s connection is exactly this job. Link Main Sewer Line Cleaning → the Main Sewer Line Cleaning service page.
Sewer camera inspection is how we find out whether a recurring backup is just roots, or roots that got in through a failed connection, an offset joint, or a belly — cleaning alone can restore flow without ever showing you the actual cause. We bring one in when a problem keeps returning or before recommending a repair, not on every call. Link Sewer Camera Inspection → the Sewer Camera Inspection service page.
Hydro jetting scours the full width of the pipe rather than just punching a path through a root mass or grease buildup, which matters on an older clay or cast-iron line. We evaluate what your line can handle before we tailor the pressure to it. Link Hydro Jetting → the Hydro Jetting service page.
Sewer line repair & lining is for when cleaning genuinely isn't enough — a failed 1960s connection, a cracked joint, a belly that keeps trapping debris. Where the pipe's condition allows it, we can reline an old clay service — running new pipe inside the existing line — without excavating the whole yard. A collapsed section, a severe offset, or a line that's lost its slope generally still needs traditional excavation, and we'll tell you plainly which one your line needs. Link Sewer Line Repair & Lining → the Sewer Line Repair & Lining service page.
What We Actually Find
On this Bloomington call, an older drain line had clogged and needed cleaning. We worked through the drain access shown here and removed the material caught in the line. The goal was straightforward: clear the blockage and get the drain flowing again.
That’s exactly what we did. Older pipes don’t automatically mean a replacement job, and a clogged drain doesn’t tell you the whole story about the pipe underneath. We start with the problem in front of us, then explain whether anything more needs attention. For this homeowner, the drain is flowing again.
Frequently Asked Questions
If you are dealing with a drain or sewer problem, you probably want answers fast. Here are some of the most common questions we hear from Bloomington customers. If you still have questions, give us a call!
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If your home was built or connected during the 1960s, there's a documented, specific reason this happens here: the tar compound used to seal the original service connection shrinks over time, and that gap becomes an entry point for tree roots. Cutting the roots restores flow, but it doesn't close the connection that let them in — which is why the same backup can return until the connection itself is addressed.
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In Bloomington, the property owner is responsible for cleaning, maintaining, and repairing the private sewer service between the home and the City's main. Bloomington Utilities can check their own main to confirm whether the problem is on their side; if their main is flowing fine, the issue is in your private line.
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Where the pipe's condition allows it, yes. One common method relines an old 6-inch clay service by running a new 4-inch PVC pipe inside it, which can fix a failing line without digging up the yard or street. A collapsed pipe, a severe offset, or a line that's lost its slope typically still needs excavation — we'll tell you honestly which one applies after we've actually looked at your line.
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No. A first-time or straightforward clog usually just needs to be cleared. We recommend a camera inspection when a backup keeps recurring, when you're deciding between repair options, or when you want to actually see what's happening inside an older line before committing to a fix.
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Bloomington requires sump-pump discharge to go outside the home, at least 10 feet from the foundation — never into a floor drain, laundry tub, or the sanitary sewer. An improperly connected or too-close discharge line is a common, fixable source of basement backups that gets mistaken for a sewer problem.
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It depends on what's actually wrong with the line — clearing a straightforward clog costs less than a structural repair or relining job. We give you a clear price before any work begins, and we start with the simplest fix that solves the problem rather than jumping to the most expensive option.
Call Hiawatha Sewer for Drain Cleaning
If your drain is clogged, your basement is backing up, or you think your main sewer line may be blocked, Hiawatha Sewer is here to help.
We provide drain cleaning in Bloomington, MN for homeowners and businesses who need experienced help with clogged drains, sewer backups, and recurring line issues.
Call now or fill out the Request Service form to schedule service.