Polly Plumbing | 1762 Keller Pkwy, Keller, TX | (817) 286-3446. Locally owned, not a franchise. Every sewer diagnosis on our trucks gets reviewed by a licensed master plumber. Texas License RMP-42199. Serving Keller, Southlake, North Richland Hills, Grapevine, Flower Mound, Fort Worth, Arlington, Trophy Club, Roanoke, and all of Tarrant County.
There is a stripe of grass in your backyard doing better than the rest of the lawn. It is late July in Keller. It has not rained in three weeks. Nothing back there should be doing better.
Maybe that is all you have noticed. Or maybe there is more. The hall bathroom gurgles when the washing machine drains. A smell near the floor drain that was not there in spring. Showers that puddle before they empty. Each one is easy to explain away on its own. Together, they are your yard telling you something is leaking under it, and this time of year, the usual suspect is a sewer line that Texas clay has been working on for decades.
This guide explains exactly what the clay under Keller does to a buried pipe, and why the damage shows up in the hottest weeks. It covers how to tell a broken line from an ordinary clog. And it walks through what to do the day you start suspecting your house is the one. We fix these for a living. Still, most of this article is about helping you figure out what you are actually dealing with. About half the people who call us worried about a broken line turn out to need something much smaller.
What Texas Clay Does to a Buried Pipe
Keller sits on Blackland Prairie clay, a soil the USGS has documented for its very high shrink-swell potential. Plain version: this dirt drinks water and swells when it rains, then shrinks hard when it bakes. The NOAA climate normals for DFW show the cycle that powers it: wet springs, then long dry summers, nearly every year.
Foundation engineers around here plan for inches of seasonal soil movement, not fractions. Your sewer line lives in that same moving soil, 2 to 6 feet down, and unlike your slab, nobody engineered it to ride the waves. It is a rigid pipe, laid straight decades ago, with joints every few feet in the older materials. The soil swells and lifts it. The soil shrinks and drops it. Every cycle is a small tug on every joint.
Then the damage feeds itself. A joint opens a hair. Wastewater seeps out and keeps the soil around that spot wet while the rest of the yard dries. Wet soil next to dry soil means uneven movement, which pulls the joint wider, which leaks more. Meanwhile every tree within reach has noticed the only wet spot in a drought and is growing roots straight at it. This is why sewer problems around here are rarely random. They are the soil, the water, and the trees running the same play every summer.
A Summer in the Life of a Keller Sewer Line
Here is the calendar version of what is happening under your grass this year.
| Time of year | What the soil is doing | What your pipe feels |
|---|---|---|
| Spring rains | Clay swells and heaves upward | Pipe gets lifted and squeezed; joints flex |
| Early summer heat | Surface clay begins to dry and shrink | Support under the pipe starts pulling away |
| Peak July and August | Deep shrinkage; the yard cracks open | Pipe sags into voids, joints separate, weak spots snap |
| First fall rains | Soil swells again, fast | Water finds every new gap; roots are already inside |
Notice where the breaks land on that calendar. The pipe usually does not fail during the spring swell. It fails in the shrink, when the ground that held it up for months quietly leaves. That is why our main line calls climbed right alongside the temperature this summer. The yard cracks you can see in August are a decent preview of what the soil is doing to everything buried in it.
Broken or Just Clogged? How to Tell
This is the question that matters, because the two problems live in completely different price ranges and completely different levels of urgency. Nobody can be certain without a camera, but the pattern usually tips its hand first.
| The clue | Points to a clog | Points to a break |
|---|---|---|
| How it started | Suddenly, often after heavy use | Gradually, over weeks or months |
| Which fixtures | Usually one sink, tub, or toilet | Several at once, worst at the lowest drain |
| After a clearing | Stays fixed | Comes back, often in the same season |
| The yard | Normal | Green stripe, soggy patch, or a sunken line |
| The smell | At one fixture, comes and goes | Persistent, from floor drains or outside |
| The season | Any time | Shows up or worsens in the summer heat |
Inside the house, the tell is the pattern. One slow bathroom sink is a clog, full stop, and our drain cleaning guide for Keller TX covers those. But some patterns point downstream. The toilets bubble while the washer drains. A shower and a toilet act up together. Sewage appears at the lowest drain in the house. In those cases everything upstream is fine, and the problem is in the one pipe they all share.
Outside, the clay does you a strange favor: it shows you the evidence. Sewage is fertilizer, so a leak paints a green stripe over the line while the drought browns everything else. A worse leak softens the ground into a soggy or sunken band. And because rats and roaches live in sewer systems, a breached line can hand them a doorway. A sudden pest problem near one side of the house is worth taking seriously as a plumbing clue, strange as that sounds.
One caution in the other direction. A wet spot in the yard with no sewage smell, paired with a water bill that keeps climbing, usually means the pressurized water service line instead, which is a different pipe and a different fix. Our water line repair guide for Keller TX shows how to tell them apart, and if the trouble seems to be under the foundation itself, start with our slab leak detection guide.
Two Calls That Show the Difference
On the first day of July we ran two main line calls, same symptoms at both houses. Every drain slow, gurgling, a smell coming up.
At the first house, the jetter cleared the line and the camera showed healthy pipe that had simply packed up at one spot. Clog. Done before lunch, and the yard never got touched.
At the second house, the jetter could not win, and the camera showed why: a section of the line had failed outright, and waste was catching there on every flush. That one was a real break. The crew replaced the failed run that week, the city inspected it with the trench open, and the family was back to normal water use by evening.
A few weeks earlier, in mid June, we caught one in between. A blocked main that cleared fine, but the camera showed a joint starting to open, the early version of everything this article describes. We put the findings and a repair price in writing and left it with the homeowner to plan around. No countdown clock. The line works today, and when they are ready, the fix will be a scheduled project instead of a Saturday night emergency.
Same phone call, three different answers. The camera is the only thing that told them apart.
What to Do Today If This Sounds Like Your House
You do not need to solve this by tonight, but a few moves this week protect you.
Go easy on the water. A struggling line handles a shower fine and a laundry marathon badly. Space out the big water events until you know what you have.
Take notes and photos. Which fixtures act up, when, and together or alone. Walk the yard along the likely pipe path, from the house’s wet walls toward the street, and photograph anything green, soggy, or sunken. Two minutes of notes makes the diagnosis faster and cheaper.
Find your cleanout. It is a capped pipe near the foundation, often on the side nearest the bathrooms. Knowing where it is saves time when the camera arrives. Plenty of older Keller homes do not have one, which is worth knowing too.
Skip the chemical drain cleaner. It cannot reach a main line problem, it does nothing for a break, and it makes the pipe a less pleasant place for the person who eventually has to work on it.
Get it cleared and scoped. Our drain unblocking service clears the line when it can be cleared, and the camera rides along to answer the real question. You watch the screen with us. If it is a clog, we say clog, and you keep your money.
It is also worth knowing where your home’s main water shutoff is before any plumbing problem, not just this one. Our plumbing emergency preparedness guide for Keller walks through the five minutes of homework that make every future emergency smaller.
When It Becomes an Emergency
Suspicion is a this-week problem. Sewage in the house is a right-now problem.
If wastewater is coming up through a floor drain, a tub, or the lowest toilet, stop running water entirely. Every gallon that goes down any drain, including the dishwasher and washing machine, is coming back up at that low point. Keep kids and pets away from the backup inside and from any wet, smelly areas outside, because raw sewage carries bacteria and this is not the mess to handle with a household wet vac and optimism. Ventilate the room and make the call.
We answer live, day or night, and there is no emergency surcharge, so a 2 a.m. backup does not cost more than a Tuesday one. Our emergency plumber guide for Keller covers what happens on those calls and what we will ask you on the phone.
What Fixing It Costs, the Short Honest Version
We keep pricing talk broad on purpose, because every line is a different length, depth, and material under a different yard, and no two quotes should match until a camera has seen the pipe. The shape of it: clearing a blocked line is the least expensive outcome and where most calls end. Replacing one failed section runs a few thousand dollars for most Keller homes. Full replacements of long or deep runs, or anything under concrete or the slab, climb into five figures. The written quote is the invoice, and the $89 dispatch fee is waived for PollyCare members. Our sewer line replacement cost guide for Keller TX explains everything that moves those numbers and how to compare bids without getting burned.
Which Keller Homes Break First
The clay pushes on every pipe in town. What the pipe is made of decides which ones give.
The oldest streets around Old Town Keller and off US 377 can predate 1972, which means clay pipe or Orangeburg, a compressed fiber pipe that goes soft and oval after decades in wet soil. Those materials do not bend with the clay. They deform and separate. South Keller near the North Richland Hills line, and the 1970s and 80s pockets, run on cast iron. That pipe has spent fifty summers corroding along its bottom, so the shrink season snaps sections that already look tired from the inside. The changeover neighborhoods are a coin flip between late cast iron and early PVC. That covers Monticello, Woodland Springs, Parks at Keller, and the older Town Center sections, where the mature silver maples, willows, and live oaks supply the roots. And the newer sections, Hidden Lakes, Marshall Ridge, and north Keller, run on PVC that does not rot. There the clay’s signature move is the belly instead: a sagging low spot where waste pools and clogs repeat.
We mapped this street by street, with a build-era table, in our sewer line replacement cost guide. Our sewer line repair guide for Keller TX goes deep on each failure mechanism, including the cast iron channel rot that surprises so many people. If you are buying an older Keller home, put a sewer scope in the deal. Our plumbing inspection guide covers what we check before a closing, and a pre-1990s house that has never been scoped is the single best candidate for one.
Polly Plumbing is a locally owned shop on Keller Parkway. We clear, scope, repair, and replace sewer lines across Keller and Tarrant County, and every finding goes to you in writing with the camera footage to back it up.
Around the Area
The soil does not respect city limits, but the housing stock changes the odds. North Richland Hills carries the oldest homes we serve, so its lines tend to give first, and its supply pipes are not far behind. Southlake’s Timarron and Carillon era homes sit on post-tension slabs. Any under-slab break there is a job that starts with cable location, never with a saw. Our leak detection guide for Southlake covers the supply-side twin of that problem. Grapevine’s Historic Downtown still runs original cast iron drains inside the walls. Flower Mound’s Bridlewood and Wellington neighborhoods permit through the Town, and we handle that paperwork like Keller’s. Trophy Club and Roanoke span everything from 1970s Hogan’s Glen and the historic Oak Street blocks to nearly new Canterbury Hills and Seventeen Lakes, so the build year matters far more than the city name.
Keeping Your Line Alive Through August
You cannot change the soil, but you can take away its favorite weapons.
Water the soil, not just the plants. The soaker hose program foundation companies preach for your slab, steady moisture along the perimeter through the dry months, does the same favor for the dirt above your sewer line. Consistent moisture means less shrinking, which means less movement, which means fewer tugs on fifty-year-old joints. It is the cheapest sewer insurance in North Texas.
Mind the trees. Silver maples and willows are beautiful and they are the two worst offenders we pull out of pipes. If you are planting, keep the thirsty species away from the line’s path. If mature trees already straddle the run, that is not a removal sentence, it is a reason to scope the line every few years.
Know your line and keep the cleanout reachable. Ten minutes figuring out where the pipe runs and where the cleanout cap sits pays off on the worst possible day. If your home has no cleanout, adding one is a small project that makes every future service call faster.
Feed it kindly. Grease, wipes, and heavy paper are how a slightly tired pipe becomes a blocked one. The clay creates the weak spot. What goes down the drain decides how fast it matters.
Scope on a schedule. Pre-1990s home, mature trees, or any history of repeat clogs: put a camera through it every few years. Catching a joint that is starting to open, like that mid June call, turns an emergency into an appointment. And ask your insurance agent about a service line rider while everything still works. Most standard policies call old pipe a maintenance problem, and the rider is the cheap fix for that.
What Happens When You Call Us
A live person answers, day or night. You get a text with your plumber’s photo before anyone knocks. We clear the line first when clearing is possible, then the camera goes in and you watch the screen with us. Whatever it shows, you get the findings and every real option in writing, and the written quote is the invoice. After the visit, a written summary of everything found and done lands with you. Ask around about the parrot on our trucks. It is there because the answer always comes in writing.
We Are Close By
Polly Plumbing clears, scopes, and repairs sewer lines from our shop on Keller Parkway, serving Keller, Southlake, North Richland Hills, Flower Mound, Fort Worth, Arlington, Trophy Club, Roanoke, and all of Tarrant County.
Green stripe in a brown yard? Drains talking to each other? Call (817) 286-3446. Live agents answer 24/7, the camera settles it, and about half the time the news is better than you feared.
Frequently Asked Questions About Broken Sewer Lines in Texas
What are the first signs of a broken sewer line under a Texas yard?
Outside, look for a stripe of grass greener than the rest of the lawn during dry weather. Watch for a soggy or sunken band along the pipe’s path, a sewage smell with no obvious source, and sometimes a sudden pest problem near one side of the house. Inside, the tell is multiple fixtures acting up together: gurgling, slow drains throughout the home, and backups at the lowest drain. In Keller’s clay, these signs often appear or worsen in July and August, when soil shrinkage pulls old joints apart. Call Polly Plumbing at (817) 286-3446 and we will put a camera on it.
How do I know if my sewer line is broken or just clogged?
The pattern usually tells you before the camera confirms it. A clog starts suddenly, tends to affect one fixture, and stays fixed once cleared. A break builds gradually, drags down several fixtures at once, keeps coming back after clearings, and often leaves evidence in the yard. Season matters too: problems that appear or worsen in the summer heat point toward clay movement and a structural issue. Only a camera inspection settles it for certain, which is why we scope the line during the clearing and you watch the footage with us.
Why do sewer lines break in summer in Texas?
Texas clay swells when wet and shrinks hard in drought, and North Texas delivers that exact cycle almost every year: wet spring, long dry summer. During the summer shrink, the soil that supported the pipe pulls away, so the pipe sags into voids, joints separate, and weakened sections snap. Tree roots make it worse by chasing the only moisture left in a dry yard, which is often the leak itself. That is why sewer calls in Keller climb with the temperature, and why August yard cracks are a preview of what the soil is doing to buried pipe.
Is a broken sewer line an emergency?
A suspected break is a this-week problem. Sewage actively backing up into the house is a right-now problem. If wastewater is rising in a floor drain, tub, or the lowest toilet, stop all water use, keep kids and pets away from affected areas inside and out, and call. Every drain in the house feeds that same line, so even the washing machine adds to the backup. Polly Plumbing answers live 24/7 and charges no emergency surcharge, so a midnight backup costs the same as a Tuesday morning one. Call (817) 286-3446.
Can I still use water if my sewer line is broken?
Carefully, and only if nothing is backing up yet. A compromised line often handles light use while failing under volume, so space out showers and hold off on laundry marathons and long dishwasher cycles until the line is scoped. The moment wastewater appears at the lowest drain, stop entirely, because everything you send down is coming back up at that spot. Getting the line cleared restores normal use for most homes the same day, and the camera tells you how much caution the pipe actually needs after that.
How do you confirm a sewer line is actually broken?
With a camera, and nothing else. We clear the line first when it can be cleared, then run a camera from the cleanout through the full run while you watch the screen. The footage shows the pipe material, any cracks, separated joints, root intrusion, or sagging low spots, and the on-screen counter marks the distance to each problem so the finding can be located precisely in the yard. You get the findings in writing. Never accept a broken-pipe diagnosis, from anyone, without footage you personally watched. Call Polly Plumbing at (817) 286-3446 to schedule a scope.
Does watering my foundation also protect my sewer line?
It helps, and for the same reason. Steady soaker hose moisture through the dry months keeps the clay from shrinking as violently, and less soil movement means fewer tugs on the pipe joints riding in that soil. It is not a cure for a pipe that is already failing, and it will not stop roots that are already inside a line, but it is the cheapest way to slow the clay down. Pair it with sensible drain habits and a camera scope every few years on older homes, and most Keller sewer lines can be kept off the emergency list.