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Top-Rated Sink installation pros in Cos Cob - Updated Nov 2026

Avatar for Rapid Repairs - Plumbing and Handyman
Rapid Repairs - Plumbing and Handyman
4.4(
53
)

Serving Cos Cob, CT and surrounding areas

In business since 2012

Emergency services offered

"I purchased the big deal, and I was not let down.  Elly arrived on time, quickly assessed the problems, and worked out the best solutions.  All the work was performed well.  Elly was courteous and professional. 
"
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+2

Recommended by88%of homeowners
Avatar for MFS PLUMBING AND WATER HEATER CO.
MFS PLUMBING AND WATER HEATER CO.
5.0(
17
)

Serving Cos Cob, CT and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"I had a leak under my sink with water pouring out. Also a leaky washer and warm but not hot water in two showers. I called Mark and he was incredibly responsive, set up a time at my convenience. He is a very young guy, but incredibly knowledgeable. You gotta love that Scottish brogue!! My kitchen sink is a great example of what to expect from him, it was simply a hose that needed tightening. He showed me the problem, including how to fix it myself in the future and fixed it in about 2 minutes. With the washer, he told me it was an issue for the manufacturer, which I appreciated. He was able to quickly turn my warm shower into a hot one. I appreciate his honesty and expertise, he was great. He is the one I will call if I need a plumber again."
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Recommended by100%of homeowners
Landmark Design
4.9(
48
)

Serving Cos Cob, CT and surrounding areas

In business since 1980

Free estimates

"Rocco was extremely professional throughout my dealings with him. He prepared me well for the work that needed to be done and walked me patiently through the process. He listened to all of my questions on his initial visit and offered his suggestions without being pushy or trying to sell me anything. When I asked for references for an engineer to survey my property, he found me one in my area that was affordable and just as professional. Rocco told me the work itself would take two days, but on the first scheduled day he showed up with a big team and was able to complete it in just one day. And to top it off, he left me with great instructions on how to grow the grass back in the area where he installed the well. All in all, the experience was a great one and Rocco will be my first call for any future projects.
"
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+19

Recommended by97%of homeowners
Avatar for Two River Interiors LLC
Two River Interiors LLC
4.4(
42
)

Serving Cos Cob, CT and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"Andrew Laschyk is the owner of Two Rivers Interiors, and we dealt with him personally on everything, which was always a pleasure.  Andrew is warm and funny, and is completely professional in his work.  The only knock I could possibly give him is that he is, at times, difficult to get on the phone.  
When it comes to the work, the quality is the best I've seen.  We took a small, old, humdrum utilitarian kitchen and turned it into a showpiece.  The craftsmanship everywhere is superb, and on the crown molding is breathtaking.
Andrew and his workers were polite, professional and tidy; they did excellent work, and cleaned the place up beautifully when they were done.
Andrew prepared a detailed estimate, and never deviated from it without our advance consent.
Andrew does some really amazing large expensive work for people with mansions in our area, ad we were a relatively small job, but that made absolutely no difference to the quality of the work,  We are very very happy with the work does by Two Rivers; I would gladly recommend them to a friend, or to anyone, and would gladly hire them (and expect to!) to work on our home in the future.
"
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+15

Recommended by100%of homeowners
Avatar for B-Beka plumbing
B-Beka plumbing
5.0(
7
)

Serving Cos Cob, CT and surrounding areas

Emergency services offered

"After several weeks of trying to find an honest, responsive, and fair company, we found our way to B-beka Plumbing and so glad we did. Bess came out and evaluated our needs and recommended a practical solution for us, taking into account our needs rather than a sales pitch for more complex and expensive options."
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+3

Recommended by100%of homeowners
Avatar for N Barlow Construction LLC
N Barlow Construction LLC
4.5(
37
)

Serving Cos Cob, CT and surrounding areas

In business since 2014

Free estimates

"Mr. Barlow and his team were very punctual and located the leak. They completed the work within 2 days and were available in a short period time. They were also very reasonable in price and very clean. When they finished their work, they threw out all old garbage and disposed of all unwanted materials as many workers don't do that nowadays. I was very happy with their service and work."
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+140

Recommended by91%of homeowners
Avatar for Pacific Stone & Tile
Pacific Stone & Tile
4.6(
321
)

Serving Cos Cob, CT and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"Pacific Stone did a nice job. Person in charge of scheduling measurements and installation was pleasant and courteous. Within a few days of my inquiry they came out to my house to take measurements and they brought samples to choose from. Installation was done within a few weeks after that. Took away the old countertops and sinks. They know what they're doing. One of the installers was actually the owner and they were prompt and professional and cleaned up well."
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+3

Recommended by91%of homeowners
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Sink Installation FAQs, answered by experts

When installing an undermount kitchen sink in a granite countertop, use 100% silicone to secure the basin. If you’re worried your sink is too heavy, speak with a countertop professional about how to adhere the sink to the countertop without worrying about issues down the road. Sagging undermount sinks can be a common plumbing problem if they’re not properly adhered, so always make sure you’re using a high-quality material.

Natural stone stinks require sealing before installation because they have a porous surface susceptible to staining and damage. Quartz is much denser than natural stone, making it non-porous and resistant to stains or absorption. Because quartz is a composite material, it doesn’t need to be sealed before daily use.

If you know the job is going to be extensive (and you don’t like surprises), hiring a Roto-Rooter specialist may make sense for you. You’ll know how much you’re going to pay right away.

That said, hiring the best plumber isn’t solely about price. If you've worked with a plumber you trust before or have a list of plumbing services you need tackled at your home, working with a plumber might be a better choice for you.

Porcelain and enamel sinks have very similar appearances, but they aren’t the same. Porcelain is a ceramic made from natural clay, while enamel is a strong powder that’s glazed over a metal sink. Use a magnet to determine whether you have an enamel or porcelain sink. If a strong magnet sticks to the sink, it’s likely enamel. If it doesn’t, you probably have a porcelain sink. You can also use the model number on the sink (often found on the underside of the bowl) or information from the manufacturer to determine the material.

The standard kitchen sink size is typically 22 inches by 30 inches. However, kitchen sinks are available in a wide range of sizes to fit different kitchens, commonly from 25 to 39 inches long, though you can find even larger or custom sizes. When choosing a replacement, the easiest option is to select a sink that matches your existing one's dimensions. If you decide to install a larger sink, you will need to enlarge the cutout in your countertop; be sure to use the template that comes with the new sink to ensure a proper fit. Installing a smaller sink can be more complex, as it may require replacing the entire countertop.

The Cos Cob, CT homeowners’ guide to sink installation services

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