Featured Project:
9/11 Memorial
Eastport-South Manor High School

9/11 Memorial at ESM

Excav was proud to install a beam from the World Trade Center in this permanent memorial to a day none of us will forget.

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Excav is a green-focused company. Learn more by clicking below:Green Construction Services


Sewer Main Installations /

Storm Water Management

Dealing with run-off water correctly is of extreme importance. Besides preventing flooding (and the damages flooding causes to your property), storm water run-off is a leading cause of pollution in our lakes streams and coastal waters.

Why hire Excav for your project? When it comes to storm water management, working with Excav brings unique benefits:

  • Geologist with knowledge of soils permeability
  • Large and small capability – whatever you need, one size does not fit all
  • Compaction equipment – proper compaction ensures backfilled areas will not settle
  • Awareness of local jurisdiction and codes and best available technology for a given application

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Storm water run off or Non Point source pollution is the leading cause of degradation in our lakes streams and coastal waters. This pollution has a direct effect on human health by degrading food sources such as fish and shellfish as well as making our recreational areas unhealthy.

From simple, cost effective measures such as vegetated swales to high end high volume radiative in-pipe filters we can help you meet your storm-water run off demand while preserving the environment.


Excav is also well-versed and experienced in more general/standard water drainage applications, such as:

  • Under drains / French drains
  • Bubble basins
  • Vegetative leaching swales
  • Perforated leaching fields
  • Rainwater detention structures and “green” cisterns
  • Large and small leaching systems 

Drainage is crucial to any landscape design.

Plan your drainage carefully and install prior to your landscape elements for a long lasting and effective landscape design.

We always encourage the use of indigenous and water filtering plant species which will require less maintenance overall.