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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon882
    Verified plumbing services reviews

Find Plumbers in Thornwood

Avatar for Westfair Water Systems, Inc.

Westfair Water Systems, Inc.

375 ADAMS ST
4.80(
40
)
Approved Pro

Westfair Water Systems, Inc.

375 ADAMS ST
4.80(
40
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
56 local quotes requested

Award Winning Water Treatment Company. A+ BBB Rating. Westfair Water Systems has been a leading force in the water treatment industry. Our Certified Technicians are trained to deal with the most complex water situations. We pride ourselves on customer service and satisfaction. Westfair Water Systems is an authorized, independent Kinetico Dealer proudly serving Westchester & Putnam Counties including surrounding areas for over 20 years. Call to Schedule a FREE WATER TEST, estimate or appointment today!

"excellent installation"

Abe R on June 2025

Award Winning Water Treatment Company. A+ BBB Rating. Westfair Water Systems has been a leading force in the water treatment industry. Our Certified Technicians are trained to deal with the most complex water situations. We pride ourselves on customer service and satisfaction. Westfair Water Systems is an authorized, independent Kinetico Dealer proudly serving Westchester & Putnam Counties including surrounding areas for over 20 years. Call to Schedule a FREE WATER TEST, estimate or appointment today!

"excellent installation"

Abe R on June 2025


"I had a great experience. My problem was affordably fixed quickly and competently. I would definitely recommend."

Adam W on October 2025

My focus is to provide a professional and affordable service for all customers based on our expirienced technicians and high quality equipments ready to take care of any drain problem or any emergency 24/7

"I had a great experience. My problem was affordably fixed quickly and competently. I would definitely recommend."

Adam W on October 2025


Leema Plumbing & Heating

New on AngiNew on Angi
Approved Pro

Leema Plumbing & Heating

New on AngiNew on Angi
Approved Pro
21 local quotes requested

Plumbing Services. We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

Plumbing Services. We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!


Avatar for Old Faithful Pump Co

Old Faithful Pump Co

22 Brayton Rd
4.88(
41
)
Approved Pro

Old Faithful Pump Co

22 Brayton Rd
4.88(
41
)
Approved Pro
Customers say: Terrific value
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
12 local quotes requested

We are an owner/operator company with 17 years of experience. We are committed to offering honest service and competitive prices. We use quality material and perform work to the highest standard to ensure longevity of the equipment you will rely on every day. We are a full service well pump & water treatment company offering 24 Hour Emergency Pump Service.We also offer water testing, water filtration, UV lights, water softeners and installation and service of water tanks.

"Joe is very experienced and very professional to replace my well pump, bring up the well cap to above ground level and installed house water filter. He discussed the job in detail and gave a fair quote. He came on time and did the job at high quality. He cleaned up everything before he finish. He took the 5% Angies list coupon as well. Will use him again and highly recommended if you need well pump service!"

Zeqiang G on September 2018

We are an owner/operator company with 17 years of experience. We are committed to offering honest service and competitive prices. We use quality material and perform work to the highest standard to ensure longevity of the equipment you will rely on every day. We are a full service well pump & water treatment company offering 24 Hour Emergency Pump Service.We also offer water testing, water filtration, UV lights, water softeners and installation and service of water tanks.

"Joe is very experienced and very professional to replace my well pump, bring up the well cap to above ground level and installed house water filter. He discussed the job in detail and gave a fair quote. He came on time and did the job at high quality. He cleaned up everything before he finish. He took the 5% Angies list coupon as well. Will use him again and highly recommended if you need well pump service!"

Zeqiang G on September 2018


Avatar for Cassidy Plumbing and Heating, Inc

Cassidy Plumbing and Heating, Inc

422 New York 52
4.52(
23
)
Approved Pro

Cassidy Plumbing and Heating, Inc

422 New York 52
4.52(
23
)
Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
239 local quotes requested

We are a fully licensed and insured plumbing and heating service offering comprehensive services for plumbing and heating in Westchester NY, Putnam NY, Southern Dutchess and the surrounding areas. Our services include toilet repair, hot water heaters, leak repair, drain cleaning, boiler services and much more. A complete listing of the services offered by our professional plumbers can be found on our website. In addition to plumbing and heating services for existing homes and new construction, we offer 24-hour emergency service for plumbing emergencies. Check our website www.cassidyplumbinginc.com for our specials.

"Oct. 6 2025 it went quick. I received an estimate of The job first. The work was done correctly. It didn't take long. If I need plumbing service again. I would contact Cassidy plumbing & Heating."

Ann S on October 2025

We are a fully licensed and insured plumbing and heating service offering comprehensive services for plumbing and heating in Westchester NY, Putnam NY, Southern Dutchess and the surrounding areas. Our services include toilet repair, hot water heaters, leak repair, drain cleaning, boiler services and much more. A complete listing of the services offered by our professional plumbers can be found on our website. In addition to plumbing and heating services for existing homes and new construction, we offer 24-hour emergency service for plumbing emergencies. Check our website www.cassidyplumbinginc.com for our specials.

"Oct. 6 2025 it went quick. I received an estimate of The job first. The work was done correctly. It didn't take long. If I need plumbing service again. I would contact Cassidy plumbing & Heating."

Ann S on October 2025


"EVERYTHING WAS AMAZING...... CUSTOMER SERVICE EXCELLENT, COMPLETED THE JOB BEFORE THE DATE PROMISED, ALSO WORKED WITH ME ON THE COST OF EVERYTHING. "PLUMBING WORK IS EXPENSIVE" IF YOU GUYS DONT KNOW BUT OVERALL I HIGHLY RECOMEND HIM TO EVERYBODY IF YOU WANT THE WORK DONE RIGHT N NOT GET SCAMMED THIS IS YOUR GUY BECAUSE HES MINE NOW FOR ANY PLUMBING ISSUE IN THE FUTURE THANKS AGAIN AND SEE YOU SOON"

Wayne M on October 2024

We specialize in Piping, plumbing, water heaters, boilers and whole house filtration . New installing, service and rough-ins

"EVERYTHING WAS AMAZING...... CUSTOMER SERVICE EXCELLENT, COMPLETED THE JOB BEFORE THE DATE PROMISED, ALSO WORKED WITH ME ON THE COST OF EVERYTHING. "PLUMBING WORK IS EXPENSIVE" IF YOU GUYS DONT KNOW BUT OVERALL I HIGHLY RECOMEND HIM TO EVERYBODY IF YOU WANT THE WORK DONE RIGHT N NOT GET SCAMMED THIS IS YOUR GUY BECAUSE HES MINE NOW FOR ANY PLUMBING ISSUE IN THE FUTURE THANKS AGAIN AND SEE YOU SOON"

Wayne M on October 2024


Wilson Plumbing and Heating

.
4.56(
9
)
Approved Pro

Wilson Plumbing and Heating

.
4.56(
9
)
Approved Pro
Customers say: Super punctual
33 local quotes requested
15 years of experience

With over 20 years of plumbing and heating experience, Wilson Plumbing and Heating is your trusted choice for all your water heater and plumbing needs. Contact us today for expert installation and repairs.

"Fast response and reasonable price. The work was completed quickly and looks good."

Matthew M on July 2025

With over 20 years of plumbing and heating experience, Wilson Plumbing and Heating is your trusted choice for all your water heater and plumbing needs. Contact us today for expert installation and repairs.

"Fast response and reasonable price. The work was completed quickly and looks good."

Matthew M on July 2025


Avatar for Atomic Rooter Inc

Atomic Rooter Inc

2 Prospect Ave
4.65(
110
)
Approved Pro

Atomic Rooter Inc

2 Prospect Ave
4.65(
110
)
Approved Pro
Customers say: Quick response
20 local quotes requested
48 years of experience

For over thirty years we've made every effort to ensure our customer's satisfaction. From our conception we've adhered to traditional values, integrity being first and foremost. Perhaps the best fruit of our efforts is that over 75% of new business now stems from referrals. We understand the importance of good customer service and pledge to serve our customers with respect and professionalism. We would very-much like your business, but know full-well we must earn it. Atomic Rooter, Inc. is family owned and operated. We welcome your calls. Should you have any questions or require service, please do drop us a line.

"Steven was the absolute best… arrived at the very start of only a two hour window, fixed the problem in about an hour. Very polite and courteous. I called three plumbers and he was the first to call me back and the only one who would give me a ballpark figure over the phone. The others wanted to come out and have a look for $70. even though I accurately described the job in detail. I’m thrilled to have a reliable plumber! A more than satisfied customer, Lora Harrigan"

Lora H on July 2024

For over thirty years we've made every effort to ensure our customer's satisfaction. From our conception we've adhered to traditional values, integrity being first and foremost. Perhaps the best fruit of our efforts is that over 75% of new business now stems from referrals. We understand the importance of good customer service and pledge to serve our customers with respect and professionalism. We would very-much like your business, but know full-well we must earn it. Atomic Rooter, Inc. is family owned and operated. We welcome your calls. Should you have any questions or require service, please do drop us a line.

"Steven was the absolute best… arrived at the very start of only a two hour window, fixed the problem in about an hour. Very polite and courteous. I called three plumbers and he was the first to call me back and the only one who would give me a ballpark figure over the phone. The others wanted to come out and have a look for $70. even though I accurately described the job in detail. I’m thrilled to have a reliable plumber! A more than satisfied customer, Lora Harrigan"

Lora H on July 2024


Avatar for Flotechs Plumbing Inc

Flotechs Plumbing Inc

24 Gaffney Pl
4.88(
132
)
Approved Pro

Flotechs Plumbing Inc

24 Gaffney Pl
4.88(
132
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
111 local quotes requested

For a locally owned and operated Westchester County plumber with the skill to tackle plumbing and HVAC problems big and small, Flotechs Plumbing Inc is the clear choice. We have technicians available in your area ready to bring you the service needed to get the job done right.

"They were very transparent regarding costs and came on the same day as requested. They quickly identified the problem and cleaned everything perfectly."

Stefan L on August 2025

For a locally owned and operated Westchester County plumber with the skill to tackle plumbing and HVAC problems big and small, Flotechs Plumbing Inc is the clear choice. We have technicians available in your area ready to bring you the service needed to get the job done right.

"They were very transparent regarding costs and came on the same day as requested. They quickly identified the problem and cleaned everything perfectly."

Stefan L on August 2025


Avatar for Aqua Tech Plumbing

Aqua Tech Plumbing

4356 Martha Ave
4.67(
3
)
Approved Pro

Aqua Tech Plumbing

4356 Martha Ave
4.67(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
48 local quotes requested

We specialize in plumbing services, repairs, inspections, installations, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Very good service. Explained everything. Removed and/or replace with explanations."

Charles M on March 2025

We specialize in plumbing services, repairs, inspections, installations, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Very good service. Explained everything. Removed and/or replace with explanations."

Charles M on March 2025

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Showing 1-10 of 218
Plumbing questions, answered by experts

A house has two main water shut-off valves. One water valve location is inside the house. If your home is connected to a municipal water supply, you’ll find it on the perimeter of the house on the side that faces the street. If your home uses well water, that valve could come in from any side. The other main valve is near where your property meets the street.

Replacing a standard toilet with an elongated one is straightforward. The two types can be installed using the same existing drainpipe and plumbing. If you have a small bathroom, make sure that an elongated toilet doesn’t violate local building codes for clearance, which is the space between fixtures and walls. 

You can drain a hot water heater yourself as long as you take some safety precautions. Be sure to familiarize yourself with the unit before starting, let the water in the tank cool down for a few hours, and wear safety equipment to protect yourself, including heavy-duty rubber gloves and safety goggles.

While freezing pipes are less of a concern in warmer climates, pipe insulation can still be beneficial because it helps prevent condensation on cold water pipes, reducing the risk of moisture-related issues like mold growth. It also helps maintain water temperature, reducing the energy needed to heat and cool the water, which can ultimately lower your utility bills.

In most areas, drain cleaning professionals don’t technically need a license, as they aren’t altering your plumbing system in any way. However, we recommend hiring a drain cleaning professional with a plumbing license and certification. Certified plumbers are more likely to provide professional solutions to drain clogs without damaging your system. They’ll also have the diagnostic tools and experience necessary to remove the clog entirely rather than providing a temporary solution, as a handyperson might. Use Angi’s state licensing tool to check your plumber’s professional licenses before hiring.

The Thornwood, NY homeowners’ guide to plumbing services

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