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TRUSTED BY MENDHAM, NJ HOMEOWNERS

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    Average homeowner rating
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    Verified french drain services reviews

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

Avatar for Arid Basement Waterproofing
Arid Basement Waterproofing
4.9(
89
)
Basement Drainage Channels - InstallFoundation Drainage - Install or Replace

Serving Mendham, NJ and surrounding areas

Approved

In business since 1963

Free estimates

Warranties offered

"Did a great job, thorough, good cleanup and were careful not to make a mess on our main floor. Came back afterwards to flash the french drain to see if that helped reduce our radon levels. Really nice guys, would highly recommend."
PVC French drain
Trench w/ gravel
Cementing trench
Sump pump
Sump pump with a cover

+1

2 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Century Masonry & Waterproofing
Century Masonry & Waterproofing
4.9(
64
)
Basement Drainage Channels - InstallFoundation Drainage - Install or Replace

Serving Mendham, NJ and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Situation resolved!!!! This started off as a little bit of water in the corner of the basement but escalated very quickly with the snow melt. Sean was here the same day I called to assess the situation and began work shortly after. They had to chop up the entire perimeter of the basement floor to install the french drains. This is definitely messy work and they never left a mess behind. All the guys were great and the work was well done and in a very timely manor. HUGE amount of stress has been lifted and thank you to Century Masonry and Waterproofing for making the process relatively painless."
The beginning
WaterGuard XL
Final Product
CleanSpace around support pillars
CleanSpace on the floor

+26

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Pascale Plumbing & Heating, Inc.
4.6(
120
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera LocateSump Pump or Interior Foundation Drains - Install

Serving Mendham, NJ and surrounding areas

Approved

In business since 1996

Free estimates

Credit card accepted

When your plumbing stops working, you need fast, reliable services. You can get all of that and more, from a dependable professional like Angelo Pascale. Our trusted team will help return your home to normal. We specialize in all your plumbing needs. Call us for a free estimate today.

Recommended by78%of homeowners
Avatar for PlumbWell Pros
PlumbWell Pros
5.0(
37
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera Locate

Serving Mendham, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"I reached out late at night. Gotta call at 7am. They showed up at 9 and figured out quickly why I didn't have water coming from the well. My pump was burned out. These guys busted their butts in extreme heat and humidity and got my well up and running by 4pm. 311 feet of new hose electric and the pump for a reasonable price. Super nice guys! I would recommend this company to everyone"
Well Tank Replacement
Well Tank Replacement
Well Tank Replacement
Well Tank Replacement
Well Tank Replacement

+2

Response time5 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Dawson Mechanical Contracting
Dawson Mechanical Contracting
4.8(
136
)
Drain Line Breakage - Camera LocateDrain Line Breakage - Camera Locate - For BusinessSump Pump or Interior Foundation Drains - Install

Serving Mendham, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"David and his team are always on time and deliver exceptional quality work. I did 3 big projects with them over last 2 years and will hire them again if needed. His estimates are very accurate and he will tell you when the project should be done. I recently had to call them right before 4th of July due to my boiler not firing. He came next day and quickly found the issue (the back draft sensor triggered and had to be reset). He explained why this usually happens and how to reset it myself. He and his crew had a project in my area and due to that didn't charge for this visit. This is the honest plumber I was looking for!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time7 hrs
Response rate99%
Recommended by92%of homeowners
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French Drains FAQs, answered by experts

Yes, frozen pipes can cause a toilet to stop working correctly. If the pipes are frozen, water cannot flow, which can lead to two main problems. First, the supply line to the toilet tank may be frozen, which prevents the tank from refilling with water after you flush. Second, the drain pipe itself can freeze, blocking water from flushing away. As a temporary solution for a non-refilling tank, you can manually add water, but this is not a long-term fix. To clear a frozen drain pipe, you can try pouring warm water into the toilet bowl or tank and then flushing, as the warm water may help thaw the ice blockage. Ultimately, the best course of action is to unfreeze the affected pipes to restore your toilet to full functionality.

Yes, drains are one common entry point for water bugs. However, water bugs may enter your home through various locations including doors, windows, pipes, and vents. Water bugs are drawn to the dark and moist atmosphere drains provide, and can easily find their way into your home through sewer drain pipes. You can stop water bugs from entering through drains by regularly cleaning your drains and repairing faulty drainage systems.

A sewage smell in your crawl space is usually from a damaged or clogged pipe leaking sewer gasses or actual sewage underneath your home, but there are some other common causes. Moisture, from poor or damaged encapsulation or a malfunctioning sump pump, can harbor mold and bacteria, causing a musty smell. Pests can also get stuck in your crawl space and die, which causes a sewage-like odor.

Yes, you can pour water down the toilet to help it flush. For each flush, you’ll need 1 to 2 gallons of water for newer toilets or 3 to 5 gallons of water for older toilets. Rather than dumping the entire bucket in all at once, pour the water in slowly for the best results. If you’re pouring water down the toilet to help it flush after a clog, only use 1 gallon of hot water.

Several signs can tip you off to a clogged dishwasher drain. At first, you may notice that it’s taking longer than usual for the dishwasher to drain, or you may hear gurgling sounds during the draining part of the cycle. You might also notice water backing up into your sink or excess food at the bottom of the dishwasher after a load. The most obvious sign, though, is seeing standing water at the bottom of your dishwasher after the cycle has finished.

The Mendham, NJ homeowners’ guide to french drain services

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