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TRUSTED BY THORNTON, CO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon132
    Verified sewer cleaning services reviews

Top-Rated Sewer cleaners in Thornton - Updated Nov 2026

Avatar for All American Drain Cleaning, LLC
All American Drain Cleaning, LLC
4.6(
399
)
Sewer Main - Clear

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"Everyone I contacted (this is my second experience with them) has been friendly and ready to help. Technician arrived early, diagnosed the problem, performed the work, even showed me with a camera that the entire main sewer line was cleaned. Worth my time and money, will use them again (old house)."
Response time9 hrs
Recommended by91%of homeowners
Avatar for Hyper Flow Service Company
Hyper Flow Service Company
4.9(
27
)
Sewer Main - ClearSewer Main - Clear - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"I got a call from Kyle around 4:55 pm. He said he was able to come out around 7 pm, keep in mind, Hyper Flow closes at 5 pm. Kyle came out of his way after hours, ran a camera through my sewer line, snaked out the line, and then showed me on the camera the second time that the line was clearish. My main sewage line has been building up for a few years. Kyle gave me 3 different estimates for futures maintenance. I have already made an appointment for Kyle to come back out and do some more work. He is very up front, honest, and caring. He isn't just trying to get paid, Kyle is aware that life happens and works with customers to do what works best financially for the customer at the time of the job. I would recommend Kyle and Hyper Flow to anyone who is looking for a plumber with years of experience and has the best intrest for his customers."
Restaurant Grease system
Floor sink Jetting
Floor sink Jetting
Clean floor sink
Clean floor sink

+12

Response time9 hrs
Recommended by100%of homeowners
Avatar for Afford-A-Rooter
Afford-A-Rooter
4.4(
138
)
Sewer Main - Clear

Serving Thornton, CO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"We called on a Saturday for emergency service and within about 45 minutes the plumber had arrived. He used a roto-rooter type tool to clean out the sewer line. The work was done well and the plumber was very friendly and professional."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

Response time5 days
Response rate100%
2 neighbors recently requested a quote
Avatar for Rooter Guy, LLC
Rooter Guy, LLC
4.6(
3,131
)
Sewer Main - ClearSewer Main - Clear - For Business

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Emergency services offered

"Laith with Rooter Guy did an excellent job on cleaning our sewer line. Customer service was excellent! He was very meticulous and took great care in cleaning up after. Very reasonable priced. Highly recommend Rooter Guy!"
sewer cleaning
1269 neighbors recently requested a quote
Recommended by91%of homeowners
No Limits Plumbing & Drains LLC
5.0(
112
)
Sewer Main - ClearSewer Main - Clear - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2024

Customers say: True professional

We pride our company on reliability, great communication, \nintegrity, and quality work. We are experts in our trade and will do our best \nto keep you as educated as we can on your particular task or project. We are licensed and insured. We look \nforward to earning your business!

16 neighbors recently requested a quote
Recommended by55%of homeowners
Avatar for Peak Plumbing & Drain Repair, LLC
Peak Plumbing & Drain Repair, LLC
4.8(
62
)
Sewer Main - Clear

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Credit card accepted

"Jacob and Tim with Peak Plumbing replaced my main drain sewer line from clean out to the sidewalk. These guys are great!!! They are professional, knowledgeable, have great skills and they are a great value for the work they do! I highly recommend these guys and the company. Great customer service!!!"
Before
Sewer Repair
Response time6 hrs
81 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Generation Sewer and Water, LLC
Generation Sewer and Water, LLC
4.6(
27
)
Sewer Main - ClearSewer Main - Clear - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"I hired GoldStar to replace the main sewer pipe two weeks ago. I am very impressed by the excellent customer service I received. After I talked to Tran, he did an accurate measurement in a day or two and provided a very reasonable quote. Once I gave the green light to proceed, he got the work scheduled and coordinated with the two inspectors required for the project. Although there was something unplanned like any project that happened onsite, the worker told me honestly, and Tran took care of it without fuss. The payment options are very smooth as well. The quality looks good from the layman's eye. I trust the inspectors did their job to validate. More importantly, I am glad GoldStar does it. The bottom line: if you need an honest contractor to do a similar job, I highly recommend GoldStar."
Response time8 hrs
Recommended by80%of homeowners
Drain Right Drain Cleaning & Plumbing, Inc.
4.2(
396
)
Sewer Main - ClearSewer Main - Clear - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Best plumbers ever. Right on schedule from start to finish. Great job from the repairs in my super tight crawl space to the main sewer line replace ment outside. Got my moneys worth and a good job done.there number is in my phone log for the next time....Thanks again Kalan.. 'll"
Faucet install
Before and after
Heating element
Snaking sewer
Digging sewer

+2

Response time30 mins
Recommended by93%of homeowners
Drain Unlimited, LLC
4.6(
31
)
Sewer Main - ClearSewer Main - Clear - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2001

Emergency services offered

Warranties offered

Welcome to Drain Unlimited, LLC. From toilets to faucets and waterheaters to all phase of draining system, you can expect Drain Unlimited, LLC, to provide fast economical quality service for your business or home. Drain Unlimited, LLC, is simply the best Denver plumbing company. When homeowners and businesses in Denver area need plumbing work, they can rely on Drain Unlimited, LLC, to provide the highest quality and quickest service in the area.

Response time7 hrs
Recommended by93%of homeowners
Avatar for Blue Thunder Plumbing Sewer and Drain, LLC
Blue Thunder Plumbing Sewer and Drain, LLC
4.8(
14
)
Sewer Main - ClearSewer Main - Clear - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. \n

Response time2 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
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Sewer Cleaning FAQs, answered by experts

There are several common signs that your main sewer line may be clogged. Key indicators include multiple fixtures in your home draining slowly, gurgling sounds coming from drains or toilets, and water backing up into showers, sinks, or toilets. You might also notice water backing up from the plumbing system's drain cleanout, water in your basement drain, or unexplained wet patches on your lawn. Foul odors, such as the smell of raw sewage or rotten eggs, are another common symptom. The most reliable way to confirm a main sewer line clog is to hire a professional plumber to perform a camera inspection.

If the toilet is overflowing but there’s no clog, that’s a sign that the issue is deeper in the system, and plunging may not help. A blockage in your home’s plumbing, the plumbing vent, or even city sewer lines can cause toilets to overflow. The issue could also be the toilet itself if the filler float isn’t set to the correct height or if parts are damaged or worn out.

You should hire a sewer service professional to unclog a main sewer line with tree roots. Tree roots can grow into the main sewer line, and this problem requires a specialized hydro jet, or rooter, that is powerful enough to clear the roots. The tree can also damage the main sewer line, and a professional will need to make repairs or replace the damaged sections. Sewer line replacement costs about $60 to $250 per linear foot.

Your sewer line can get grimy quickly. To prevent sludge buildup in your sewer line, pour a mixture of 1/3 cup of vinegar and 1/3 cup of baking soda down each drain in your home once a month. After about 30 minutes, flush the drain with hot water.

Some plumbers recommend 3/4 cup of bleach instead to clean any germs and bacteria that may build up in your sewer line. But this won’t break down any active clogs, and it cannot be combined with vinegar, as the mixture will create a toxic, hazardous gas.

With a one-way cleanout, you can access your sewer line from one direction. Depending on the way it curves, a plumber can either access the side of the pipe that goes into your home or the side that goes to your yard. On the other hand, two-way cleanouts allow pros to access both sides of the sewer line, thanks to their dual-pipe design (they’re usually U-shaped).

The Thornton, CO homeowners’ guide to sewer cleaning services

From average costs to expert advice, get all the answers you need to get your job done.