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TRUSTED BY RIVERHEAD, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon589
    Verified french drain services reviews

Top-Rated French drain pros in Riverhead - Updated Nov 2026

Avatar for PRIORITY CESSPOOL SEWER & DRAIN, INC
PRIORITY CESSPOOL SEWER & DRAIN, INC
4.8(
270
)
Basement Drainage Channels - InstallDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business

Serving Riverhead, NY and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Great! John, the owner was super helpful and nice on the phone. Eased all our concerns. The crew, Phil and Tim, showed up right on time and were able to locate the service caps in the lawn in 10 minutes. They showed me clearly how full the tanks were and clearly explained the problem and the solution. The prices quoted were very fair and there were no surprises. It took around 90 minutes. The job was all done outdoors and when they left you would never know it was done. Very neat and professional. The odors, etc we had were gone and we noticed the drains all flowing more freely. Exactly as they said. So glad we had this done before it became a serious and ugly problem inside the house. We highly recommend Priority Cesspool Sewer and Drain. Thank you!"
Additional Photos
Response time8 hrs
Response rate100%
Recommended by96%of homeowners
Basement Man
4.9(
59
)
Basement Drainage Channels - Install

Serving Riverhead, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1984

Free estimates

Customers say: Terrific value

"Jack is a straight shooter and goes over the problems he sees and only positive solutions. Jack is personable and tried to save you money versus over sell unnecessary improvements. We need our foundation patched for leaks and his crew went over and beyond the work we thought we needed. Waterproofed our outside issues and then waterproofed the inside with paint. They cleaned up our crawl spaces as well as under the basement stairs. Jack even threw in a fire extinguisher and 2 water detectors. Great man, proud of what he does and loves to please his customers. HIghly recommend. Oh, his crew keep everything clean and when they left you would never have known they dug into our driveway and backyard to install leader drains from our gutters."
Basement Man Brochure
Basement Man Brochure
Basement Man Brochure
Basement Man Brochure
Response time1 day
Recommended by92%of homeowners
Avatar for Surefire Mechanical Corporation
Surefire Mechanical Corporation
4.5(
157
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business

Serving Riverhead, NY and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Jason called immediately after I posted my request. He came to give an estimate to replace some baseboard, and I told him of issues with two of my toilets. He looked at them and fixed the problems right then! They were prompt to the appointment, neat, and professional. When I had an issue with the oil burner (due to draining of the system) he came back and fixed the problem. Definitely recommend!"
4 Zone Navien Boiler
1st Floor AC System
Hi Efficient Heat and Hot Water
Snow melt sensor
Manifold

+14

Response time10 mins
Recommended by97%of homeowners
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French Drains FAQs, answered by experts

Costs depend on clog severity, pipe condition, equipment required, and labor.

It is safe to flush small amounts of bleach down the toilet. Don’t flush more than ¼ cup of bleach. Instead, consider diluting it and pouring it down the sink drain.

This depends on the location of the blockage. If the blockage is in your home’s system, anywhere in the system, it is your responsibility as a homeowner. Blockages seldom happen because of items or buildup coming from the city, which means it originates in the home. It becomes the city’s responsibility at the exact point your home’s line distributes waste into the city’s system. The exception is if the problem in your home damages the city lines.  

Baking soda and vinegar aren’t just great for making a volcano for your kid’s science project. You can also pour this dynamic duo down your shower drain to dissolve hair clogs. If that doesn’t do the trick, you can step it up with a commercial liquid drain cleaner. 

Professional plumbers use many high-grade chemicals to unclog drains. Many use hydrochloric acid, known as muriatic acid, when it comes to extreme blockages. 

The Riverhead, NY homeowners’ guide to french drain services

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