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TRUSTED BY COS COB, CT HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon874
    Verified plumbing services reviews

Top-Rated Plumbers in Cos Cob - Updated Nov 2026

Avatar for Atomic Rooter Inc
Atomic Rooter Inc
4.5(
126
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+8 more

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"Extremely satisfied.  Company was responsive (My initial call to them was on Xmas Day when I noticed the sewer backed up in my back yard).  They called me back immediately and  agreed to send someone to look at it the next day (after ansering some questions, we agreed it was not an emergency) - they came the next day as promised and even called prior to their arrival.  The plumber assessed the situation and took pictures to send back to Larry.  I spoke with him and agreed to have them come back on Monday when the equipment  needed to address would be available (needed an extra long hose and camera set up given the location of the cleanout cup).  Each time dealt with the company (Larry) he would call to let me know status and options.  On the day they came, Larry and his associate were at my home at the time promised.  Spent nearly 3 hours and all is well.  So although a bit pricey, well worth it given the responsiveness and professionalism of the company.  Would highly recommend them for any of your plumbing needs.
"
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+6

Response time8 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for First String Plumbing, Heating & Cooling
First String Plumbing, Heating & Cooling
5.0(
10
)
Faucets, Fixtures and Pipes - Repair or ReplacePlumbing for a Remodel or Addition - InstallSump Pump - Repair or Replace+10 more

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

First String Plumbing, Heating & Cooling is built on over four decades of hands-on, master-level experience paired with modern equipment, straightforward pricing and a commitment to serving our neighbors near and far.\n\nWe believe every homeowner in Connecticut and New York deserves a team they can count on whenever they need help. When the lights are at their brightest and all eyes are on us, we will always do what is right and that commitment never fades.

Tankless Water Heater
Water Pipe Repair
Water Pipe Repair
Water Heater Install
16 neighbors recently requested a quote
Avatar for All Star Rooter LLC
All Star Rooter LLC
4.8(
28
)
Sewer Main - ClearDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business+3 more

Serving Cos Cob, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"I've used All Star Rooter on three occasions and have been very pleased with the work provided. Always professional, punctual and careful, they are specialists. An important indicator of their skill is their position in the industry - three different plumbing companies have recommended All Star Rooter. They will calmly approach a stressful situation and do their best to reach a successful outcome. On this occasion they were able to clear an on-going clog efficiently."
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+9

1 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Gallery Of Kitchens & Baths
Gallery Of Kitchens & Baths
4.8(
70
)
Bathtub Install or ReplaceBathtub Install or Replace - For BusinessShower Install or Replace+2 more

Serving Cos Cob, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Emergency services offered

"The team from Gallery of Kitchens & Baths gave our bathroom the upgrade it desperately needed. The Salvatori marble vanity and Pittori cabinetry make it feel brand new and incredibly stylish. The craftsmanship, communication, and professionalism throughout the process were outstanding. Kudos to them!"
Contemporary kitchen.
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+83

5 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Candito Plumbing and HVAC, LLC
Candito Plumbing and HVAC, LLC
4.5(
28
)
Bathtub Install or ReplaceFaucets, Fixtures and Pipes - Repair or ReplaceFaucets, Fixtures and Pipes - Repair or Replace - For Business+8 more

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2010

Free estimates

Offers commercial services

"I can’t speak highly enough about John. He responded immediately to fix a problem with a leaking toilet (required new toilet and pipe repair and coordinated the repair work with a great contractor. I highly recommend hiring John. Great work, great price. Great guy ???"
Roof top unit
Roof top unit
Kohler carrier for wall hung toilet
wall hung toilet
Wall hung toilet

+7

Response time1 day
Response rate89%
Recommended by84%of homeowners
Avatar for H L Bowman
H L Bowman
4.6(
430
)
Drain Clog or Blockage - ClearWater Heater - Install or ReplaceSewer Main - Clear+6 more

Serving Cos Cob, CT and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"I had plumbing leaks in a couple of places, but the men that did the work went above and beyond by replacing every component involved top to bottom to ensure there would be no leaks for a long time to come. Very satisfied with the quality of work as well as how quickly it was done."
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+6

466 neighbors recently requested a quote
Recommended by86%of homeowners
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Plumbing FAQs, answered by experts

It’s a good idea to drain your pipes to prevent them from freezing if you’re expecting extremely cold temperatures or planning to be away from your home for an extended period of time during the winter. You may be able to avoid draining your pipes if you insulate outdoor pipes and keep your home heated to a minimum temperature of 55 degrees.

Yes, you can use too much plumber’s tape. Adding more tape than necessary will make it difficult to make the pipe connection and has no added benefit. Only wrap the tape around a pipe thread three to six times, depending on the size of the pipe and the thickness of the tape.

If you need to repair part of your plumbing, it will cost an average of $330. The cost of plumbing repairs is influenced by several factors, including the type of drain and the specific repair needed.

Yes, you can fill your toilet tank manually to help it flush, or you can pour the water directly into the bowl to flush it manually. This will work for the majority of toilets, as most use a gravity feed system. However, you should only ever use this as a temporary solution. If your toilet tank isn’t filling, you should find out why. First, make sure the speedy valve connected to your toilet and your water main are open. If that doesn’t solve the issue, call in a professional to address the problem.

A toilet flange secures your toilet in place to the floor, and connects your toilet to the drain pipe that carries its contents to the sewer. Obvious signs that your flange needs replacement include when it can’t keep up with these two functions. If your toilet rocks back and forth or you see leaks coming from the bottom of your toilet, it’s time for a replacement. Other signs that your toilet flange is broken or faulty may include loose tiles or soft flooring around the toilet, and sewage smells.

The Cos Cob, CT homeowners’ guide to plumbing services

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