Here at STH, we are proud to carry quality products by Topp Industries, a proven leader in the sump, sewer and waste water markets. We are proud to offer DC, Maryland, northern Virginia and surrounding areas a full lineup of these environmentally-responsible products, including:

-foam basins
-tanks
-basin & tank covers
-septic tank risers
-lift stations

For over a decade, the top choice for economical, environmental solutions has been Topp Industries! Contact us today to see how we can provide the best products to fit your needs!