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  • About Us
    • Careers
    • Financing Options
    • Reviews
  • Primary Services
    • Moisture
      • Drainage Systems
      • Yard Drainage
      • French Drains
      • Wetland Consulting
    • Odor
      • VOC Investigations
      • Aroma Investigations
      • Material Testing
    • Mold
      • Mold Removal and Remediation
      • Mold Inspection and Testing
      • Environmental Cleansing
    • Indoor Air Quality
      • Air Quality Monitoring & Maintenance
      • HomeShock™
      • Air Quality Testing
      • Steramist
      • Disinfection Services
      • Dehumidifiers
      • Air Purifiers
      • EnviroBiotics
      • Asbestos Building Inspections
  • Other Services
    • Ventilation Systems
      • Humidex Ventilators
      • EZ Breathe Ventilation Systems
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  • About Us
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    • Careers
    • Financing Options
    • Reviews
  • Primary Services
    • Close
    • Moisture
      • Drainage Systems
      • Yard Drainage
      • French Drains
      • Wetland Consulting
    • Odor
      • VOC Investigations
      • Aroma Investigations
      • Material Testing
    • Mold
      • Mold Removal and Remediation
      • Mold Inspection and Testing
      • Environmental Cleansing
    • Indoor Air Quality
      • Air Quality Monitoring & Maintenance
      • HomeShock™
      • Air Quality Testing
      • Steramist
      • Disinfection Services
      • Dehumidifiers
      • Air Purifiers
      • EnviroBiotics
      • Asbestos Building Inspections
  • Other Services
    • Close
    • Ventilation Systems
      • Humidex Ventilators
      • EZ Breathe Ventilation Systems
      • AC Infinity
    • Environmental Consulting
      • Virtual Consultation
      • Phase 1 Environmental Assessment
      • Lead Based Paint
      • Project Oversight
      • Environmentally Acquired Illness
    • Professional Consulting
      • Subject Matter Expert (SME)
      • Mold Expert Witness
  • Service Areas
  • Resources
    • Close
    • Learn
    • FAQ’s
    • Partners
    • News
  • Contact Us
IAQ Questionnaire

Still Think You Need a French Drain?

Still grappling with moisture related bio-deterioration, odors and mold even after you installed that French Drain and Sump Pump system? Still think that old French Drain science was a good idea? Probably not! Give GreenWorks a call to get to the bottom of your drainage, odor and mold issues once and for all.

CALL (732) 223-2073 TODAY

Get Rid of Moisture Problem in Your Home

By submitting this form, you agree to receive promotional and appointment reminder SMS messages from GreenWorks Environmental. Message & data rates may apply. Message frequency varies. Reply STOP to unsubscribe.

Rear yard recharge system

Where Did The Name “French” Drain Came From Anyway?

The term goes by many different names (drain tile, perimeter drain, weeping tile, toe drain, rubble drain, cellar drain, etc.) and was derived from Henry Flagg French’s book titled "Farm Drainage" (1859).

Building science and drainage mechanics have advanced quite a bit since then.

Today’s Drainage Considerations

Buildings constructed today have tighter envelopes making them more energy efficient. But “drafty homes” had better ventilation that had the unintended benefit of addressing elevated moisture issues.

Drainage considerations are more important than ever in today’s tightly sealed environments where modern-day techniques and materials are the norm.

Perched water table
Moisture clogged drain pipe

What’s GreenWorks Secret?

There are many Natural Systems to account for when assessing how the Built Environment collides with the Natural Environment. It all starts with the Water Table. Add to that topography, your soil type and soil drainage characteristics, hidden geotechnical features (like substrata, clay lenses, marl, perched water tables, filled wetlands, etc.) and one can see that designing a successful drainage solution gets complicated very quickly.

Frequently Asked Questions

How Much Does a French Drain Cost?

From $35/LF to $75/LF depending on site conditions, mechanics and access.

How Deep Should a French Drain Be?

The deeper you go, the more expensive it gets. But generally speaking, keeping top of French drain 6 inches below grade is often adequate.

What Are the Uses of a French Drain?

To dewater wet areas of your yard or to move water away from your basement to prevent flooding.

What Do I Need to Know Before Putting a French Drain in My Yard?

Before installing a French Drain, it's always a good idea to know the depth of the water table, the depth to the seasonal high water table, the soil type—topography (pitch) of the yard area, and where to discharge the water too.

What Is the Best Way to Unclog a French Drain?

The best way to unclog a French Drain is with high-pressure water. Shoot it in on the cleanout end and watch debris flow out. If it doesn't work, you may need a "snake" to break up the clog. Corrugated pipe is difficult as debris gets trapped very easily.

How to Install a French Drain?

French Drains are installed by digging a trench deep enough to bury your pipe at least 4 inches below grade. The slope of the trench should be 2% (or 1/4 inch per foot) to be able to move solids that collect in the pipe. You will want a clean-out and good area to discharge to, along with good draining material to pack in around your pipe so water can get into the pipe easily.

What People Are Saying About Us

Excellent
Based on 181 reviews
French drains 1
Megan A.
I can't recommend Greenworks enough! I'm in the process of selling my home, and the buyers had a mold inspection done that resulted in a remediation...
French drains 2
Christine Jackus
I have had the pleasure to work with Greenworks Environmental since 2022. The knowledgeable employees with Greenworks Environment helped me to get the answers that I desperately needed regarding my house and my health. For years, there was water and mold damage behind my walls that I was not aware of.

From the time we purchased the home, my family began to experience sicknesses that confused doctors. After years of searching for the right company to investigate my home, I finally found Greenworks! Greenworks Environmental completed a whole house assessment where we spent hours looking at every little detail of my home and identified the areas of concerns. Over time, with engaged collaboration and specific mold testing approaches, Greenworks identified several areas of remediation recommendations.

During the numerous remediation projects, Greenworks kept me informed, educated me and provided refences for resources for me to research to start to heal our health. They were diligent and incredibly professional and clean and provided exceptional documentation and photos needed for insurance and legal purposes.

I had talked with many companies before Greenworks, and many downplayed my concerns. If I have not found Greenworks, I would still be searching for answers. The entire project lasted about 2 years, and my family has finally started to feel better by addressing the health impacts of prolonged mold exposure. This process is overwhelming, scary, and expensive, but Greenworks was incredibly supportive and reassuring to me from start to finish!

The service and support that Greenworks Environment has saved and changed my life. I am beyond grateful for the expertise that Greenworks Environment embodies and I would highly recommend this company if you have any concerns with your home!
French drains 3
Jennifer Zullo
GreenWorks LLC is a company I highly recommend. Victor provided excellent service, answering all of my questions (and then some!) with great expertise. He is very understanding of how mold sickness affects both the person struggling with it and the effect it can have on family dynamics as a result. His availability and desire to spend the necessary time with us ensured a smooth and efficient experience. He identified details that others overlooked, demonstrating his keen attention to detail and comprehensive understanding of the relationship between indoor air quality and environmental conditions. I highly recommend Victor and the Greenworks, LLC team to anyone looking for reliable and knowledgeable professionals!
French drains 4
Jack CAMPBELL
Greenworks put in our drainage system about 10 years ago so I called them because we were getting liquid into our basement. They quickly scheduled an appointment to investigate. Later on that evening a terrible odor started and I called our plumber who came and said it was the sewerage line coming into basement.

The next day I called Greenworks and they cancelled the investigation appointment and told me how to clean (disinfect/deodorize) the basement. Thank god for Greenworks and especially Tracy who I was dealing with on the phone.

I highly recommend Greenworksllc.
French drains 5
Sharon Learn
Greenworks offers professional service with open honest discussion. I’m waiting for the final report however I received a phone call with the initial results. Very customer friendly
French drains 6
Pasquale Storino
Victor and the team at GreenWorks are great. After having work done outside our home we were left with a strong chemical odor we were assured would go away after a few days. After a few days passed we were told it could be 3 weeks so I decided to contact GreenWorks to come investigate especially having a baby. We are still working through issues at home by GreenWorks could not have been more responsive and helpful.
More reviews
French drains 7

GreenWorks Environmental is Trusted & Certified

Our Building Biologists understand not only the science of the built environment but how it collides with the natural one.

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Get Rid of Moisture Problem in Your Home

Trust your gut, there may be more going on than you think and give GreenWorks a call (732) 223-2073.

By submitting this form, you agree to receive promotional and appointment reminder SMS messages from GreenWorks Environmental. Message & data rates may apply. Message frequency varies. Reply STOP to unsubscribe.

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Main Services

  • Moisture
  • Air Quality Testing
  • Odor
  • Mold
  • Mold Removal and Remediation
  • Mold Inspection and Testing
  • M.O.M. Services
  • Mold Sampling
  • Qualified Microbial Investigation
  • Subject Matter Expert (SME)
  • Environmentally Acquired Illness

Quick Links

  • Financing Options
  • FAQ’s
  • Decontamination
  • Disinfection
  • Careers
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  • Presentations
  • Ultimate Guide to Mold Removal
  • Indoor Air Quality Questionnaire
  • SME Forensic Evaluations

Our Location and Hours

GreenWorks Environmental LLC
3100 State Route 138 Ste 1
Wall Township, NJ 07719-9021

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(732) 223-2073

service@greenworksllc.com

Mon - Thu: 9:00 AM - 5:00 PM

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