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Top-Rated Plumbers in Islip - Updated Nov 2026

Avatar for Reliable Plumbing & Heating
Reliable Plumbing & Heating
4.9(
14
)
Water Heater - Install or Replace

Serving Islip, NY and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Reliable is awesome, they came right out and they replaced my hot water tank in 6 hours. Gerry really knows what he is doing. The best licensed plumber ever in my 30 years living here. He explained to me, If the hot water unit is not installed a certain way that it could fail in only a couple of years. Always go with a pro that’s what Reliable is ."
6 neighbors recently requested a quote
Avatar for Snake the Drain Plumbing  & Drain Services
Snake the Drain Plumbing & Drain Services
4.8(
517
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearSewer Main - Clear+1 more

Serving Islip, NY and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Snake the Drain plumbing was amazing. I am so glad that my husband and I opted to use this company to fix out hot water pipe issue. Our primary bathroom had a leak that effected several rooms in our house. Louie and his team quickly responded to our call and immediately solved our plumbing issue. Armand even came back the next day to check in on the work that was completed. I am looking forward to being able to work with Snake the Drain plumbing again. Their customer service, timeliness, and fair prices truly qualify them as a top notch company."
Snake the Drain
Toilets
Sinks
Response time1 day
8 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Champion Plumbing & Heating
Champion Plumbing & Heating
4.8(
45
)
Faucets, Fixtures and Pipes - Repair or ReplaceWater Heater - Install or ReplaceGas Piping+3 more

Serving Islip, NY and surrounding areas

Approved

In business since 2000

Emergency services offered

Small jobs welcome

"I used champion plumbing and heating to replace my hot water heater in an emergency. I was completely amazed at how fast they are. Steve and crew where at my house with a new heater in less then two hours. My emergency was fixed a new hot water heater was installed and I had hot water in less then hour and a half after their arrival. My experience was great with Champion they were fast,neat, Clean, knowledgeable and professional. I would highly recommend Steve to everyone . I also have to mention the cost was less then I expected and very reasonable. Thanks again Champion heating and plumbing."
12 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for DrainRX, Inc.
DrainRX, Inc.
4.8(
65
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessSewer Main - Clear+1 more

Serving Islip, NY and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"The guys at DrainRX are the best. Living in an older house in Rockville Centre with old plumbing that easily clogs up, I have had to call them three times for three different drains, and every time John got in touch with me immediately, they came as soon as they could, and resolved the issue quickly. They're honest workers who only charge what is necessary, and they appreciate repeat customers and take an interest in getting to know you and your house. Recommend 10/10."
Slow Running Bathtub
Slow Running Bathtub
Slow Running Bathtub
Kitchen Sink
Shower Drain

+2

Response time2 hrs
Response rate95%
Recommended by98%of homeowners
Avatar for PRIORITY CESSPOOL SEWER & DRAIN, INC
PRIORITY CESSPOOL SEWER & DRAIN, INC
4.8(
270
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessSewer Main - Clear+3 more

Serving Islip, NY and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Needed pipes rooted. Showed up on time, was very friendly and knowledgeable, and within 2 hours he located the tank, installed an inspection tube, got into a wall to locate the house trap, and rooted the pipe. Would definitely recommend."
Additional Photos
Response time8 hrs
Response rate100%
Recommended by96%of homeowners
Avatar for Mr. Rooter Plumbing of Central LI
Mr. Rooter Plumbing of Central LI
4.1(
508
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera LocateFaucets, Fixtures and Pipes - Repair or Replace+2 more

Serving Islip, NY and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"Billy was the plumber that completed the plumbing task. He was punctual. Additionally, his plumbing knowledge and skills resolved my issue quickly. I will definitely utilize Mr. Rooter and Billy in the future, as well as recommend their service(s) to friends and neighbors."
Recommended by81%of homeowners
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Showing 1-10 of 855

FAQs for plumbing projects in Islip, NY

It depends on the severity of the leak. Minor leaks may not require immediate attention and can be scheduled during regular business hours. However, if the leak is causing significant water damage or you can't control the flow of water, it's best to call an emergency plumber right away. Addressing serious leaks promptly can prevent structural damage and mold growth, potentially saving you money on extensive repairs later.

A journeyperson plumber is a licensed professional with a state-issued permit who installs and repairs piping for water and heating systems under the supervision of a master plumber. They have completed extensive training and amassed significant experience leading teams, drafting blueprints, and designing comprehensive plumbing installations. Their proven expertise ensures that they can handle both routine repairs and complex projects with precision.

The Islip, NY homeowners’ guide to plumbing services

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