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TRUSTED BY COS COB, CT HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon532
    Verified drain cleaning services reviews

Top-Rated Drain cleaners in Cos Cob - Updated Nov 2026

Avatar for Winners Sewer & Drain
Winners Sewer & Drain
5.0(
35
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+1 more

Serving Cos Cob, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"I called Winners Sewer & Drain to clear two clogged bathroom sinks in our tenant's apartment. Jesse called and explained their services and the cost. Jesse coordinated with my tenant to complete the job. After the job was complete, Jesse followed up with pictures of the material that was causing the clog. Very professional, punctual and honest company. I will definitely call them back for any sewer and drain clogs."
Urban Warrior Jetter
Video Inspections
sink clogging
camera inspection
flooded area

+12

Response time9 hrs
Response rate92%
4 neighbors recently requested a quote
Avatar for H L Bowman
H L Bowman
4.6(
430
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera Locate

Serving Cos Cob, CT and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"Highly impressed with HL Bowman and would definitely recommend them. They provide top notch service from beginning to end. The initial contact and scheduling was super easy, the quote process was really extremely informative and the install was faster than promised, they cleaned up and were super professional. You can’t go wrong with these guys."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

461 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Cassidy Plumbing and Heating, Inc
Cassidy Plumbing and Heating, Inc
4.5(
32
)
Drain Line Breakage - Camera LocateDrain Line Breakage - Camera Locate - For Business

Serving Cos Cob, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Emergency services offered

Warranties offered

"Anji recommended four plumbers. Cassidy was the first to respond on Friday afternoon. One other plumber responded but I could not understand his heavy accent, and he asked me if I wanted him to replace the whole burner assembly. That made no sense to me and I questioned him about it. Suddenly he became "too busy" and hung up the phone. Another plumber didn't respond until Monday morning. Too late. The fourth plumber never responded at all. Cassidy asked if it was an emergency or could wait until Monday. I said Monday. and asked what time? I did not get an answer on Friday. Around 8:30P I called and got an answering service which told me that I wouldn't get a response until Monday because their office closed at 8:00P. I had asked about what time on Monday before 6:00P George arrived Monday morning. He was friendly. He knew what he was doing. He replaced the thermocouple. All work was done neatly and professionally. We have hot water again. I'd use Cassidy again."
Heating System
Heating System
Plumbing
The Team
Navien Water Heater

+3

Response time2 days
Response rate100%
8 neighbors recently requested a quote
Avatar for L.C. Schede & Sons, Inc.
L.C. Schede & Sons, Inc.
4.0(
294
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+1 more

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1922

Free estimates

Emergency services offered

"Lou and his technicians were great. They provided timely, accurate quotes and explained everything about improving our hot water service and all of our options. The technicians came on time for all appointments and were incredibly helpful. They explained everything to my wife and I, and were very helpful. We would hire them again for any plumbing needs."
 $100,000 Kitchen
Master Bath/Spa
Children's Bath
Guest Bath
Response time6 hrs
16 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Sam's Rooter Service LLC
Sam's Rooter Service LLC
4.7(
14
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+1 more

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1969

Free estimates

Credit card accepted

"I recently had the opportunity to experience the services offered by Sam's Rooter Service, and I am pleased to share my feedback. The quality of service provided was exceptional, deserving an A+ rating. The team demonstrated effectiveness and professionalism throughout the process. They were not only friendly and effective, but honest and trustworthy. Given their excellent performance, I highly recommend their services to anyone in need of reliable plumbing support"
Response time4 hrs
Recommended by69%of homeowners
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Drain Cleaning FAQs, answered by experts

You can try several easy methods to unclog a drain, one of the easiest and most effective of which is to use a mixture of baking soda and vinegar. This will help dislodge and dissolve the clog to move it down the drain pipes. Pour 1/2 cup baking soda into the drain, followed by 1/2 cup of white vinegar. Dump several cups of boiling water (or hot water if you have PVC pipes) into the drain and let sit for up to one hour. Run hot water to clear the drain.

You’ll need to stop or pause the machine using its control panel to start the draining process mid-cycle. Remove the items inside, turn off the power to the machine, and then follow the steps above to drain the machine manually.

There are a few ways to unclog a toilet without a plunger. Break up the clog with homemade solutions containing soap, vinegar, and baking soda, or simply let hot water spend some time in the drain. You can also use a two-liter soda bottle filled with water to push pressurized water into the pipe to dislodge the debris (see the steps above).

Professionals use augers, hydrojetting equipment, and cameras for precise clearing and inspection.

A clogged air gap can cause a dishwasher not to drain. There are, however, other potential issues that can lead to improper drainage. For example, if you have attached the air gap to a garbage disposal and forgotten to remove the knockout plug, wastewater may backflow into the dishwasher. Check that the air gap is installed properly, and then look for clogs in the air gap and dishwasher filters. 

The Cos Cob, CT homeowners’ guide to drain cleaning services

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