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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 Rodris Rooter LLC
Rodris Rooter LLC
4.8(
24
)
Drain Clog or Blockage - ClearSewer Main - ClearSewer Main - Install, Replace or Repair+3 more

Serving Cos Cob, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Went well. I thought that I might need a new trap or elbow since water was leaking. As it turned out, it was the sprayer that was leaking and not the elbow. The tech did not try to oversell me all new plumbing and I appreciate that."
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+50

Response time5 hrs
Response rate100%
3 neighbors recently requested a quote
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 professionals completely redone our bathroom. They used high-quality materials without sacrificing style. The matte jade green cabinetry was eco-friendly and gave the space a soothing vibe. The finished product is far more impressive than our original vision!"
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
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Plumbing FAQs, answered by experts

A running toilet is not a plumbing emergency, but you will want to try some DIY fixes or call in a plumber to prevent wasting gallons of water. The three most common causes of a running toilet are a broken or dirty flapper, an incorrectly sized chain between the flush lever and flapper, or a float that is out of position.

The cost to clean a sewer line is about $370, ranging from about $190 to $550 on average. The specific cleaning method and the problem's severity will impact the project's overall cost. Some of the most common sewer line cleaning methods include:

  • Snaking or rodding: $100–$250

  • Hydrojetting: $350–$600

  • Chemical treatments: $600–$1,000

  • Repair or replacement: $1,000–$7,500

Depending on the layout of your bathroom, you may be able to replace a shower valve without removing the tile. The existing hole needs to be large enough to remove your old valve and fit your new valve. If the hole is too small, you’ll need to cut into the wall and remove some of the tile.

In some cases, the answer is yes. Being licensed to work on gas lines requires additional specialized training beyond being a licensed plumber. If the plumber is also licensed as a natural gas plumber, they will be able work on natural gas lines. If the plumber is only licensed to work on water and sewer lines, then you’ll have to find another professional to do gas line work.

If you find moisture under your sink, you can clean up the worst of it with paper towels or regular towels. Then, leave the cabinet doors open to allow air circulation. You can also place a fan or dehumidifier near the cabinet to help dry it out a little quicker.

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.