Southern Drainage Systems

From the moment you hire us, you can be confident in knowing that you will receive a up to a 5 year guarantee for your Drainage System design & installation. Your Drainage Systems will be designed to last over 20 years. Retaining Walls are designed to last over 30 years and you will receive a 10 year guarantee.

Southern Drainage Systems offers the following services in Pinellas County: Tarpon Springs, Palm Harbor, Ozona, East Lake area, Safety Harbor, Largo, Seminole, St. Pete. In Hillsborough County we serve Odessa, Carrollwood, Land O Lakes and surrounding areas. In Pasco County, Holiday, New Port Richey, Port Richey and Hudson.

  • Drainage systems service including design and installation of French Drains
  • Erosion Control
  • Retaining wall design and construction
  • Retention pond design and construction
  • Underground pipe replacement

Projects requiring a General Contractors License: We work with Emerald Contractors, owner John Marzulli, Certified General Contractor License # CGC008986

The owner will meet with you on site and discuss in detail your drainage or erosion concerns.

You can be confident knowing that over the past 20 years we have designed and installed thousands of feet of drainage systems and retaining walls that still work perfectly today.

  • Engineered drawings – upon request
  • Written guarantee
  • Owner on every project
  • List of similar projects and references – upon request
  • Photos before & after


We carry 1 million (1,000,000) in general liability and workman's compensation insurance.


We can provide a list of references upon request.

Better Business Bureau – A Rating
Angie’s List – A Rating


"He is great, he did exactly what I wanted him to do and at the price he quoted me. He is very polite and does excellent work."

Mary D., Safety Harbor

"John solved our problem and finished the job neatly so that nothing shows on the lawn. He was cooperative and worked very hard to solve our problem."

Charles O., Dunedin



"Project had gone smoothly and timely. Owner is always on project and does a lot of hands on work."

Debra A., Largo