Storm Drain Cleaning on O'ahu
O'ahu's heavy rainfall events can overwhelm blocked storm drains in minutes — flooding parking lots, driveways, and buildings. We clean residential and commercial storm drains and catch basins to keep water moving where it should.
Request Service
We respond within minutes
What We Do
Storm Drain Services We Provide
From a clogged driveway drain to a full commercial catch basin cleanout.
Residential Storm Drain Cleaning
Driveway drains, yard drains, and area drains can clog with leaves, sediment, and debris. We clean and flush storm drains to restore proper drainage before the rainy season.
Commercial Catch Basin Cleaning
Commercial parking lots and properties require functioning catch basins to prevent flooding and comply with Honolulu stormwater management requirements. We vacuum and flush catch basins of all sizes.
Downspout & Gutter Drainage
Downspouts that drain directly into underground pipes can back up and flood foundations. We clear and repair underground downspout drainage systems.
Storm Line Camera Inspection
We run a video camera through storm drain lines to identify blockages, broken pipes, root intrusion, and debris accumulation — so we can target the repair correctly.
High-Pressure Hydro Jetting
For heavily blocked storm lines, hydro jetting uses high-pressure water to scour the pipe walls and flush out years of accumulated debris in one pass.
Storm Drain Repair
Cracked storm drain pipes, broken catch basin frames, and failed joints cause water to bypass the drainage system entirely. We repair and rehabilitate damaged storm drainage infrastructure.
Don't Wait
Signs Your Storm Drain Needs Cleaning
Water pools in your parking lot or driveway after rain
Drain grates are visibly clogged with leaves or debris
Flooding near downspout discharge points
Catch basin has standing water that won't drain
Sinkholes or soft ground near drain lines
Drain hasn't been cleaned in 2+ years
Storm event caused flooding that never occurred before
Commercial property preparing for rainy season
Common Questions
Frequently Asked Questions
How often should storm drains be cleaned?
For residential properties, once a year before the rainy season is a good practice. Commercial properties with high foot traffic and large impervious surfaces (parking lots) should be cleaned twice a year — before and after the rainy season. Properties near trees may need more frequent service.
What's the difference between a storm drain and a sewer line?
Storm drains carry rainwater runoff directly to streams, ocean outfalls, or retention areas — not to the wastewater treatment plant. Sewer lines carry wastewater from toilets, sinks, and drains to the treatment facility. They're separate systems and should never be connected. If you're having issues with wastewater drains, see our sewer repair services.
Can tree roots get into storm drain lines?
Yes. Tree roots follow moisture and will enter any crack or joint in underground storm drain pipes. Once inside, they grow into flow-blocking masses. Camera inspection shows where root intrusion has occurred, and hydro jetting clears the roots. Trenchless lining prevents regrowth.
Do you service commercial properties and HOAs?
Yes. We work with commercial property managers, HOAs, and businesses to keep storm drainage systems maintained and compliant. We can establish a recurring maintenance schedule and provide documentation of service for compliance records.
Is storm drain cleaning required by Honolulu regulations?
Commercial and industrial properties are subject to Honolulu's stormwater management requirements, which include maintaining drainage infrastructure to prevent polluted runoff from leaving the property. We can help you understand what's required for your specific property type.
Areas We Serve
Serving all of O'ahu — view all service areas
Clear Drains Before the Next Storm
Don't wait for flooding to discover your storm drains are blocked. Call Alpha Omega for storm drain cleaning anywhere on O'ahu.