Crawlspace Drainage & Grading 

Most issues within the crawlspace occur due to poor drainage.  There are many factors that can contribute to puddling, or standing water in your crawlspace, such as gutter downspouts draining close to the foundation, negative grading outside the home, diverted water from a neighbor, or a high-water table.  Even if your home is located on Long Beach Island, Wildwood, or any other coastal town, there is a remedy that can mitigate the amount of water under your home. 

Should your home suffer from crawlspace drainage or crawlspace grading issues, drainage matting, a vapor barrier, sump pumps, or French drain systems can create a passive system to address the water in your crawlspace.

Water should never be “accepted” in the crawlspace environment.  Constant exposure to standing water breeds bacteria, increases your relative humidity, and saturates your wood with water over time leading to mold growth.  This in turn also weakens your wood structure and attracts termites, pests and rodents due to the moist environment.

Here’s a breakdown of some of our moisture management techniques and services designed to divert or manage water in your crawlspace:

French Drain

French DrainIn extreme circumstances, Jersey Shore Crawlspace Enhancement may recommend a French Drain to address perpetual moisture problems in your crawlspace. 

An interior French drain consists of a trench dug around the perimeter of your crawlspace.  Our highly skilled technicians remove concrete or dirt from the trench and drill “weep holes” in the foundation block around the perimeter of the crawlspace.  Following the drilling we then fill the trench with a drainage aggregate and install our custom French drain system. 

Unlike traditional installations we use a specialized product designed to prevent blockage, and requires 30% less water in the system to begin diverting to a sump pump.  We, then strategically install a sump pump in line with the French drain system to passively remove the water from the crawlspace, and fill the trench back in.  Each French drain comes complete with an extensive warranty.

Sump Pumps

Sump PumpFor problem areas, a sump pump may be recommended when it can handle the amount of water observed during our inspection.  We offer a full line of sump pumps that consists of 1/3 HP-3/4 HP and battery backup sump pumps to suit any of your needs or preference.  Each of our sump pump installations come complete with an extensive warranty.


Some crawlspaces have large dips or unleveled surfaces that can make the crawlspace difficult to prevent standing water or flooding. We offer a full line of options for grading your crawlspace. Check with your flood insurance carrier as well, we save our customers thousands on their flood insurance in certain situations by raising the grade of their crawlspace.

Drainage Matting

Drainage MattingDrainage Matting is installed underneath a vapor barrier and provides adequate disbursement of ground water that may rise.  This alleviates stress on your vapor barrier, and provides room for ground water to ebb and flow during heavy periods of rain, or when affected by the tide.

Gutter Downspouts

Gutter downspouts are overlooked the most when it comes to crawlspace moisture.  Downspouts must drain a minimum of 4-8 Feet from the foundation to ensure proper protection to your foundation and mitigate crawlspace moisture.

Downspouts can be ran above and below ground depending on preference and location.  To maintain full usage of your yard, we often divert downspouts underground whenever possible.

Crawlspace Vent Wells

When vents are located in your foundation close to ground level, during heavy periods of rain, water can find its way into your crawlspace by means of your vents.  This not only shortens the lifespan of your vents due to rusting, it takes large amounts of water into your crawlspace.

Vent wells can be installed to collect such water and force the water to drain through a drainage aggregate such as pea gravel.

Crawlspace Door Wells

Door wells too can cause issue if they do not drain properly.  Jersey Shore Crawlspace Enhancement offers the installation of door wells, and correction to existing door wells that may not be handling rain water properly. 

Schedule Your Evaluation

Please enter your name
Invalid Input
Please enter your email address
Please enter your zip code