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TRUSTED BY CORNWALL, NY HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon475
    Verified plumbing services reviews

Top-Rated Plumbers in Cornwall - Updated Nov 2026

CJM Plumbing, Heating, & A/C
4.6(
80
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+2 more

Serving Cornwall, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Credit card accepted

"CJM Plumbing has done more for us than just making a repair of a gas boiler pipe. They’ve updated the interior plumbing lines that connects to the incoming city water supply to make it more accessible and safer. They ran the gas lines for a gas fireplace, repaired a leak on the boiler, replaced and properly installed a toilet and two new bathroom faucets that a previous, more local plumber to our home installed wrong! They FOUND our exterior water control switch that was buried under 3-4 inches of asphalt, near the end of our driveway (that the previous owners had paved over while creating that driveway. They installed a new in-sink garbage disposal. Their office manager, Diane is fantastic! All the guy (Chris, the owner included!) have ALWAYS been very polite, courteous, respectful and informative. They explain whats going on, what they’re going to do and what you need to do to maintain (if necessary). GREAT STAFF!!! CJM is most DEF my go-to for any of our plumbing needs!"
Response time8 hrs
13 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Neighborhood Plumbing, Heating & Cooling, Inc.
Neighborhood Plumbing, Heating & Cooling, Inc.
4.7(
62
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera LocateFaucets, Fixtures and Pipes - Repair or Replace+5 more

Serving Cornwall, NY and surrounding areas

Approved

In business since 2010

Emergency services offered

Warranties offered

"I had a plumbing leak since February 2024 whereas the leak was coming from my bathroom shower leaking into my kitchen, when I immediately contacted my home warranty American Shield, they never provided me with a Plumbing contractor. From February 22, 2024 until March 24, 2024, I continued to have leakage. American Home Shield then told me they had no contractors to assist me with my plumbing issues and therefore wanted me to identify a Plumbing contractor and then submit the diagnosis to them for review and approval. I then identified Royal Class Service and they diagnosed the leakage as a Shower Valve Replacement whereas they would need to open drywall from the closet to gain access for repair. The estimate from Royal Class was over $2,000.00. American Home Sheild then sent PROSERVICE HVAC & PLUMBING for a second option located in Connecticut. They stated that Royal Class inflated the cost repair and this Pro-Service Company was supposed now take over the repairs. I waited three more weeks because when I called Pro-Service requesting a date for repair they continuously told me they are waiting for valve they ordered from Home Depot. They are the worse!!! I'm Disabled and was out of my shower usage for three months. Well on a Thursday of early May, I happen to see Neighborhood Plumbing truck and contacted Anthony (contractor). Anthony came to home so professional and concerned to assist me with the well overdue plumbing issue and Neighborhood Plumbing repaired this in less than two hours at a price that was extremely fair and far more less than Royal Class quoted and five star professional than American Home Sheild and Pro-Service located in Connecticut. Please don't get taken by these companies. Anthony could have attempted to inflate his prices and robbed me like Royal Class attempted or he could have never come back to repair just as Pro-Service did. But, Neighborhood Plumbing does not have professional integrity they get the job done at a cost that's not ROBBERY! I had a horrible experience with these former companies and I urge you to seek out Neighborhood Plumbing if you need Plumbing, Heating & Cooling Services. Thank you Neighborhood Plumbing,"
 Boiler Install
 Furnace Install
 Bathroom Remodel
 Sewer Main Repair
 Shower Rough

+8

Recommended by100%of homeowners
Avatar for Adventure Plumbing Services
Adventure Plumbing Services
4.8(
11
)
Bathtub Install or ReplaceBathtub Install or Replace - For BusinessDrain Clog or Blockage - Clear+15 more

Serving Cornwall, NY and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Kevan (spelled with an "a") was the only plumber who even called me back the day after Christmas. All these other companies that advertise 24/7 & Holidays emergency service did not even answer the phone. We lost power and our pipes froze in super cold weather we had Christmas 2022. In 32 years my pipes never froze but they did this time and they burst in multiple locations. Kevin called and came out the same day and worked into the night replacing multiple ruptures. He is extremely courteous and professional and I HIGHLY RECOMMEND HIM for any plumbing or water treatment needs. Ken H., New Paltz, NY."
Response time8 hrs
Recommended by88%of homeowners
Avatar for Polar Plumbing, Heating, & Air Conditioning
Polar Plumbing, Heating, & Air Conditioning
4.7(
132
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearWater Heater - Install or Replace+1 more

Serving Cornwall, NY and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Everyone from the sales team to office staff and especially the actual plumbers that came out to do the work were exceptional. Let me say that I felt completely confident with everyone at Polar Plumbing from the beginning to the end. The installation of my AO Smith water softening system was done with the utmost care and professionalism. I'm very happy with the service received and the neat job done. I would absolutely recommend Polar Plumbing to anyone looking for great work and an excellent team of professionals for their home remodeling or repair work. Warmest regards, Joseph R Rivera (Home Owner)"
Jared and Our New Polar Partner
John and Mike After Picture
BEFORE - Leaking Under the Sink
AFTER - Fixed by your Polar Professionals
Indoor Face Unit 2

+8

Response time12 hrs
Response rate97%
9 neighbors recently requested a quote
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Plumbing FAQs, answered by experts

If you have a huge leak like a burst pipe, it’s an emergency, and you should call a plumber immediately. Burst pipe repair costs range between $150 and $5,000, depending on the location of the pipe and the severity of the leak.

On the other hand, more minor leaks can go undetected for a while, which can cause water damage to your cabinets, walls, flooring, or ceiling. So while you don’t need to call it an emergency, you should still worry about a small leak. Get a temporary pipe leak solution in place while you wait for a plumber.

Replacing a toilet typically takes two to four hours. Several factors can impact this timeline, including the condition of the old toilet, flange, flooring, and pipes. If a professional discovers issues like a cracked flange, damaged flooring, leaky pipes, or a broken wax ring, the installation will take longer. Additionally, some toilets, such as wall-mounted or in-wall-tank models, are more complex to install and may require cutting into and repairing drywall, which adds to the project time. Given the weight of toilets and the importance of proper placement, it is often best to hire a professional for the job.

Yes, you can adjust your well pump pressure relatively easily by yourself. You’ll need to remove the cover from your pressure switch and adjust a nut that controls cut-in pressure. Learn more about how to adjust a well pump pressure switch with a step-by-step guide to setting your water pressure.

Many parts of your plumbing system can fail, but clogged drains are one of the biggest plumbing problems you’ll likely encounter. From your kitchen sink, bathroom sink, or bathtub, there are plenty of opportunities for gunk, hair, food scraps, and more to get stuck in drains. When this happens, water will slowly drain, leading to standing water, bad odors, drain flies, and other issues.

Many homeowners can handle a minor clog themselves, but if you have a clog in your main line, you’re best off hiring a local plumber to get the drain back to its normal flow rate.

Yes, many people choose to bury their sump pump discharge pipes. When you leave the pipe visible in your yard, you might trip over it or accidentally damage it with your lawn mower. Plus, from an aesthetic perspective, hiding the discharge line underground looks nicer than leaving it out in the open. Before burying a sump pump pipe, review your local building codes to make sure your installation is compliant.

The Cornwall, NY homeowners’ guide to plumbing services

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