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These pros consistently receive high praise in customer reviews.These popular pros are highly sought after for their quality and expertise.These pros recognize that your time is important, and are the fastest to respond to requests.Pros who have the most reviews.These highly recommended pros are experts, ready to help with your project.

These pros consistently receive high praise in customer reviews.These popular pros are highly sought after for their quality and expertise.These pros recognize that your time is important, and are the fastest to respond to requests.Pros who have the most reviews.These highly recommended pros are experts, ready to help with your project.

Avatar for Knockout Plumbing & Repipe Inc.
Avatar for Knockout Plumbing & Repipe Inc.
5.
Knockout Plumbing & Repipe Inc.
5.
Knockout Plumbing & Repipe Inc.

Very good 4.5

(78)

Very good 4.5

(78)

In high demand
  • 522 hires on Thumbtack
  • 10 similar jobs done near you

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Yaswanth G. says, "Absolutely Outstanding Service – Highly Recommend Knockout Plumbing and Repipe! I rarely write reviews, but Knockout Plumbing and Repipe truly deserve recognition for their exceptional professionalism, integrity, and dedication to customer satisfaction. Two years ago, they reinstalled the entire sewer line for my home and backed it with a 10-year warranty—something you rarely see these days. This weekend, I had a sudden clog. They responded immediately and snaked the line. When the clog reappeared the next day, they showed up again—on a Sunday, within an hour—snaked the line, ran a camera, and ensured everything was flowing properly. But it didn’t stop there. They returned the very next day with a full team. They went under the crawl space, carefully checked the gradient, and found that a belly had formed in the drain pipe due to some rocks. They fixed it thoroughly, adjusted the hangers, remeasured the gradient, and made sure everything was back to optimal. They even promised to reassess if a future issue arises—no questions asked. They also provided me with a very reasonable optional quote to replace the city-connecting drain line—but made it crystal clear that the current clog had nothing to do with that pipe, which I appreciated as a gesture of honesty. And here’s what truly blew me away: They didn’t charge me a dime for any of the visits or the repair work—it was all covered under warranty. They even refused a tip, emphasizing that they valued my business and want to build long-term relationships. Their professionalism, responsiveness, and integrity are second to none. I’m incredibly grateful I chose Knockout Plumbing and Repipe two years ago, and I have complete peace of mind knowing they stand behind their work. I’ll be recommending them to everyone I know—and if you’re reading this and considering them, don’t hesitate. You won’t regret it."See more

$50/service call

(waived if hired)

$50/service call

(waived if hired)

FAQs

Answers to commonly asked questions from the experts on Thumbtack.

How do I choose the best plumber to clean my drains?

Drains can be severely damaged by improper cleaning methods, so make sure you hire a licensed plumber for this job.

Licensing requirements vary from state to state and even city to city. Visit your state or municipal government’s website to verify a plumber’s credentials. All professional tradespeople should also have a business license and liability insurance. 

If you want to hire the most skilled drain cleaner near you, look for a master plumber. These professionals have several years of experience working as a journeyman plumber, and they’ve taken additional education courses and proven their knowledge on an exam. 

You may also want to ask if a plumber has specific equipment on hand, like a plumbing camera or a hydro-pressure machine, before hiring them for a tough drain cleaning job.

This answer was reviewed and verified by Thumbtack Pro Advisory Board member, Allison McCarthy of Zoom Drain Houston.

How much does it cost to fix a drain?

The national average cost to fix a drain ranges from about $190-$570, according to Thumbtack data. This cost is likely to change based on a few factors, including:

  • The complexity and location

  • The type of property (ex: a house vs. a commercial building)

  • The type of repair needed (hydro jetting is more expensive than snaking, for example)

  • If the plumber needs to perform a video inspection

  • If the plumber needs to fix issues with the main sewer line

  • If it’s an emergency repair

  • Or if the plumber has to provide additional plumbing repairs

Always get estimates from a handful of plumbers to find out exactly how much your repair will cost.

*Data on file at Thumbtack. For a personalized cost estimate, request a quote from a professional.

What goes into cleaning a drain? What do plumbers use to unclog drains?

Cleaning a drain involves clearing any blockages and removing buildup on the side of the pipe. If left intact, this buildup can restrict the flow of wastewater and increase the chances of future clogs. 

Sink traps can be cleaned by disconnecting the U-shaped pipe and scrubbing it with a brush or rag. However, most pipes aren’t so easily accessible and need to be cleaned with special tools. The simplest is a hair snake, which is designed to pull hair out of a shower drain. Next up are augers, which can be hand-powered or motorized. These machines twist a thick, coiled wire through clogs in the pipe and break up gunk on the side walls as they go. 

Plumbers may also clean drains with a hydro jetting machine, which blasts pressurized water through the pipe to force debris out of the way. These machines are expensive and could burst a pipe if used incorrectly, so it’s usually best to call a plumber for this service.

How long does it take a plumber to clear a clogged drain?

If you’re lucky, a plumber can clear a clogged drain in a matter of minutes with a plunger, snake or auger. On the other hand, it could take several hours to clear a clog that’s located far down the line, severely impacted or complicated by tree roots and broken or collapsed pipes. 

Sometimes, plumbers can only open a clogged drain temporarily, if at all. For a long-term solution, the affected pipe may need to be replaced. This gets complicated if the clog is located underground or in a hard-to-reach location, and it could take all day to dig it up and install a new one. In fact, your plumber will likely schedule the full repair on a different day because of the extra equipment, labor and time required. 

Remember: The timeline for your project will vary depending on many factors. Always ask your pro to provide an estimate.

This answer was reviewed and verified by Thumbtack Pro Advisory Board member, Allison McCarthy of Zoom Drain Houston.

What could be causing clogs in my drain?

Common clog culprits include:

  • Hair, dirt and soap scum in shower and bathroom sink drains

  • Grease and food debris in kitchen drains

  • Mineral buildup due to hard water

  • Flushing paper products besides toilet paper, such as feminine hygiene products, wet wipes or paper towels

Clogs can also develop in sewer pipes if the house or ground settles, causing the pipe to slope upward slightly and waste products to accumulate at the lowest point. Aggressive tree roots can invade pipes through cracks or joints, trapping debris like a net. And, sometimes, a stubborn clog is actually a collapsed pipe. Finally, if you have young children, the clog could be caused by a toy or other object flushed down the toilet. 

No matter the scenario, a plumber should be able to help you get to the bottom of it. 

This answer was reviewed and verified by Thumbtack Pro Advisory Board member, Allison McCarthy of Zoom Drain Houston.

When should you call a plumber for a clogged drain instead of DIY-ing?

You can try some DIY procedures before calling in a pro if you have a plunger, hair snake or drain auger on hand. If you don’t have the right tools or you’re unsure how to use them properly, call a plumber.

You should also call a plumber if you notice any of the following issues:

  • Gurgling noises in the pipes

  • Bubbles in the toilet bowl after it flushes

  • An issue with more than one drain or fixture

  • Sewer gas smells anywhere 

  • Unusual puddles in the yard 

  • Evidence of leaky pipes inside the home

If you do this kind of work yourself in your own home, you could damage the pipes and create a bigger problem — especially if you use the wrong tools and techniques. On the other hand, a professional plumber should be able to safely clear a clogged drain and fix the root cause so it doesn’t happen again.

This answer was reviewed and verified by Thumbtack Pro Advisory Board member, Allison McCarthy of Zoom Drain Houston.

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