Slow drains. A gurgling toilet. A sewage smell drifting up from your yard. These signs send most Westminster and Broomfield homeowners straight to Google: can I repair a sewer line myself?
We get that question often. Last month, a Shaw Heights homeowner called us after running a rented snake through the line for two days straight. The real problem was a collapsed section further down, past where any snake could reach. As a veteran-owned company holding Colorado plumbing license MP.03000945, we've seen this exact mistake more times than we can count.
Some small jobs are safe to try yourself. But a real sewer line failure almost always needs a licensed plumber. This guide covers what's safe to handle, the real risks of going it alone, and local permit rules. It also breaks down DIY costs against hiring a pro, so you know exactly where to draw the line.
Can I Repair a Sewer Line Myself?
Homeowners can safely handle a few small sewer tasks. Most real sewer line repairs need a licensed plumber.
Safe to try yourself:
Clearing a minor clog with a hand auger, not a motorized snake
Cleaning out a visible clean-out cap
Watching drains closely after a known root event
Call a professional for:
Any repair below your foundation or under a driveway or street
Pipe replacement, relining, or trenchless repair
Any job that needs a permit from Westminster or Broomfield
Need a full picture of what's going on underground? Sewer line repair in Westminster, CO starts with a camera, not a guess.
What Sewer Line Repairs You Can (and Can't) Do Yourself
A clogged drain and a broken sewer line are not the same problem. Most clogs happen close to a fixture, and a simple hand auger can often clear them. A true sewer line problem sits much deeper. It usually means a crack, a collapse, or roots growing through a joint.
What can you actually do yourself? The list is short:
Run a hand auger through a floor drain or toilet for a minor clog
Pop off a clean-out cap and check for backup
Track slow drains if you already know a root caused a past clog
Anything past that point calls for a professional. That includes pipe collapses, joint separation, and any work under your foundation, driveway, or the street.
Interior drain lines run short and mostly straight. Your sewer line runs much longer, sits deeper, and slopes downhill the whole way to the street. It also carries waste from your entire home, not just one fixture.
Westminster and Broomfield sit on expansive clay soil, mostly Denver Blue clay and Pierre Shale. This soil swells and shrinks with moisture, and freeze-thaw cycles make it worse each winter. Over years, that movement bends and separates older sewer pipes underground.
Most DIY sewer repairs fail for one reason: misdiagnosis. A homeowner often clears what looks like a clog. The real damage can sit ten feet further down, past any hand tool's reach. So before you spend a weekend on it, know what you're actually dealing with.
The Real Risks of DIY Sewer Line Repair
DIY sewer repair carries real risk, not just extra work. Sewage exposure alone can make you sick. Raw sewage carries bacteria and gases no homeowner should handle without protective gear.
A partial pipe collapse rarely stays partial. Push the wrong tool through it, and a small crack can turn into a full failure overnight. That turns a simple fix into a full excavation.
The risks stack up fast:
Sewage exposure and the bacteria and gases it carries
A partial collapse turning into a full pipe failure
Hitting a gas, water, or electric line while digging
Voiding your homeowner's insurance with unpermitted repair work
One thing we see constantly on Broomfield and Westminster calls: homeowners digging blind. They aim for where the problem looks worst, and too often hit a shallow gas or water line instead. Colorado 811 marks utility lines for free before anyone breaks ground — it takes one phone call. Skip that step, and a plumbing problem turns into something much bigger.
The insurance risk catches people off guard, too. If you skip the permit and something goes wrong, your insurer can deny the claim for water or sewage damage. That protection only holds when the work gets permitted and inspected.
Permits and Code Requirements for Sewer Work in Westminster & Broomfield, CO
Clearing a clog with a hand auger doesn't need a permit. Repairing or replacing a section of sewer line almost always does, in both Westminster and Broomfield.
In Broomfield, homeowners can pull their own permit for owner-occupied homes. You must live there, own it, and do all the work yourself. The city still requires an inspection before you cover the pipe back up with dirt. In Westminster, you're responsible for the sewer lateral running from your house to the city's main line. Any repair work there needs a licensed plumber and a permit, too.
Colorado also requires anyone doing this work to hold a state plumbing license through DORA, the Department of Regulatory Agencies. There's no separate "contractor" license here. A plumbing business needs a licensed master plumber attached to it. That's one more reason a random handyman can't legally do this work.
Skipping the permit can cost you later, too. Home inspectors and buyers' agents catch unpermitted sewer work more often than people expect. It can also leave your homeowner's insurance unwilling to cover related damage down the road.
Before you touch a shovel:
Call the City of Westminster or Broomfield's building or engineering division
Confirm whether you qualify for a homeowner permit or need a licensed plumber
Schedule required inspections before backfilling the trench
Keep your permit and inspection records for resale later
When in doubt, call the permitting office directly before you dig. It's a five-minute call that can save you thousands.
If your line needs real repair, our licensed sewer line repair in Westminster, CO team handles permits and repairs together.
DIY vs. Professional Sewer Line Repair Cost Comparison
Renting a drain snake costs $30 to $80 a day. That covers a simple clog, nothing more. It won't tell you if a root has already cracked the pipe further down.
A professional camera inspection runs $270 to $1,700 or so, and it shows you exactly what's happening inside the pipe. That number feels steep next to a rental fee. Still, it's the only way to know if you're looking at a clog or a collapse.
Full sewer line repair or replacement typically runs $1,300 to $5,000, depending on length and access. Trenchless methods cost more per foot than traditional digging, but they skip most of the landscaping repair. For a Westminster or Broomfield yard, that trade-off often makes trenchless the smarter call.
A failed DIY attempt costs more than the rental fee. Property damage, re-excavation, and emergency plumber rates can turn a $50 rental into a $5,000 problem fast.
| Approach | Typical Cost | What It Actually Covers |
|---|---|---|
| DIY hand auger or rental | $30–$80 per day | Minor clogs only |
| Professional camera inspection | $270–$1,700 | Full diagnosis of the real problem |
| Sewer line repair or replacement | $1,300–$5,000 | Fixing a confirmed break or collapse |
| Trenchless replacement | Higher cost per foot | Full line replacement, less yard damage |
Most of the time when this happens in older Westminster neighborhoods like Shaw Heights or Sherrelwood, the story repeats. A homeowner rents a snake for about $50 and clears what looks like the clog. The backup returns within a week. By then, they've spent more than a camera inspection would have cost upfront.
Signs It's Time to Call a Licensed Sewer Line Professional
Some signs mean it's time to stop troubleshooting and pick up the phone. Watch for these warning signs of sewer line damage:
More than one drain backing up at the same time
A sewage smell in your yard or basement
Soggy or sunken patches in your lawn above the line
The same clog coming back again and again
A home built before 1970, when Orangeburg and cast iron pipe were common
If your home falls into that last category, your sewer line likely needs attention sooner rather than later. That's especially true in older pockets of Westminster, like Shaw Heights or Historic Olde Town. Older cast iron corrodes from the inside, and Orangeburg pipe breaks down completely over time.
When you see two or more of these signs, call a plumber. Don't spend another day at the hardware store. Reach out to our team, and schedule sewer line repair in Westminster, CO today.
The Drain Cleaning Company 7180 W 117th Ave D, Broomfield, CO 80020 (720) 948-4175 Available 7am–10pm, 7 days a week
Save the number of a reliable emergency plumber Broomfield CO before you need one: (720) 948-4175.