Commercial Storm Drainage Systems

D&L Plumbing Inc. installs commercial storm drainage systems for construction projects in Durham, NC and across the Triangle and Triad regions, coordinating roof drainage and underground storm piping networks.

System Overview

Commercial buildings require storm drainage systems designed to collect and convey rainwater from roof structures and site surfaces to approved discharge points in accordance with engineered plans and local stormwater regulations.

The system includes:

Roof drains and leaders
Vertical storm stacks
Underground storm piping
Area drains and surface collection points
Connection to site storm infrastructure

Drainage Capacity & System Performance

Storm drainage systems are installed to manage peak rainfall conditions, maintain controlled water flow, and protect structural elements from excessive surface runoff.

Scope of Work

Roof Drain Installation

● Primary and overflow roof drains
● Leader piping
● Roof penetration coordination

Vertical & Underground Piping

● Storm stacks
● Underground storm mains
● Cleanouts and access points

Site Coordination

● Connection to civil storm systems
● Elevation verification
● Inspection preparation

Testing & Verification

● Water testing of roof drainage
● Inspection coordination
● Verification of proper flow paths

Project Types

Commercial storm drainage systems are installed in facilities requiring coordinated roof and site water management during construction.

Educational facilities

Public safety buildings

Warehouses and distribution centers

Institutional buildings

Serving Projects Across North Carolina

Based in Durham, NC

Commercial torm drainage systems are installed across North Carolina in coordination with civil drawings, site grading plans, and local stormwater regulations.

The Triangle

Raleigh

Durham

Cary

Chapel Hill

Apex

The Triad

Greensboro

Winston-Salem

High Point

Burlington

Discuss Your Commercial Plumbing Project

Planning a commercial construction project? Our team can review storm drainage plans, coordinate elevations and discharge points, and support pre-construction scheduling.