Dashing Dan's Plumbing & Heating Inc.
“Cliff was very knowledgeable with the nevian boiler and a true professional!!”
Best Drain Cleaning Services near Islip, NY
These contractors serve Islip from nearby bases in towns including West Islip, Bay Shore and Islandia.
15 contractors listed · 7 open 24/7 · 12 open weekends · 14 rated 4.5+ · 8 show a license
Data verified October 16, 2026
Order a Plumber Inc.
“He came back to make sure that the work was complete, working well and to our satisfaction.”
East Coast Sewer & Drain
“They are very nice and respectful and professional thank you East Coast Sewer & Drain”
Jopam Services Inc
Biagio Plumbing & Heating
“I hope I don't need a plumber for a while but I would definitely have Rob back and would recommend his services.”
Suffolk Plumbing Inc
“When I call they come quickly and send such nice people to help me out.”
The 15 companies listed for Islip, NY clear blocked drains and sewer lines. Hours, jetting and camera work, and free estimate claims come from each company's own website. Ask who carries their own jetter rather than subcontracting it before you book.
Area overview: Islip, NY
The 15 contractors on this page are rated from 4.4 to 5.0 across 4,035 reviews; 12 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (89%), responsiveness (84%) and punctuality (71%). The topics that come up most in reviews of the contractors on this page are "price", "estimates" and "efficient". 7 are open around the clock; 12 are open on Saturdays and 9 on Sundays. The services the contractors on this page list most often on their websites are drain cleaning (3), plumbing (3), boiler installation & repair (2), new construction (2) and new installations (2). 8 show a license on their websites and 3 have a BBB rating of A or A+. Domain records put 9 websites of the contractors on this page at ten or more years old; the oldest dates from 2004. 9 offer emergency call-outs; 3 offer financing or payment plans; 5 give free estimates; 7 are family- or locally-owned and 5 list coupons or special offers. We count these figures across the contractors on this page; hours and prices change, so confirm the details with the contractor before you book.
What can I learn from these companies' websites?
A website is linked by 12 of the 15 listings for Islip. Look for two things: whether they own a jetter and a camera or hire them in, and whether they show repair work as well as cleaning. A company that only cables will keep coming back for the same line.
Varsity Home Service
“He spent quite a bit of time up in my extremely hot attic yesterday after telling me that he was not leaving until my system was working properly and my house was cool.”
Retro Hot Water & Heating
“ADD ON: I called on them in an emergency for my HVAC repair because I trusted them and they did such a great job with my hot water heater and they did ANOTHER AMAZING job!”
Jet Cesspool Service
“Nick the owner was very polite and explained exactly what needed to be done to fix the problem.”
Rubber Duck Plumbing Inc.
“Prompt response to phone inquiry, simple leak detection and completed jib immediately ....”
Rescue Cesspool & Drain
“Without an appointment he came over and emptied out my cess pool.”
Herber Plumbing & Heating Corp
“They were able to diagnose and fix the problem and my heating system ran without issue all winter.”
Joe Sampson's Plumbing & Heating LLC
“Technicians arrived on time, fixed what needed to done, very happy with their service.”
Affordable Cesspool Sewer & Drain
“Joe & Jonathan were professional, on time, and took great care in not only cleaning out our lines but also taking pride in the work and making sure it was done properly!”
Paul's Way Home Services Inc
“He personally made sure my job was handled professionally and properly through out the job, he even went the extra mile by ensuring my shower glass was handled correctly.”
Why these companies made our list
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