Catch Basin Installation & Replacement
Stormwater Solutions Built for Compliance, Durability, and Performance
When stormwater drainage systems fail, they don’t just flood your site—they put your entire operation at risk. Whether you’re managing new construction, upgrading outdated infrastructure, or replacing a failed drain, Gullywasher offers expert catch basin installation and replacement services that meet EPA and municipal stormwater requirements.
Why Catch Basins Matter
Catch basins—also known as storm drains, curb inlets, or drop inlets—are critical for managing surface water and keeping pollutants out of our waterways. Installed at low points around properties, parking lots, and streets, they capture runoff, trap debris, and channel water safely to underground pipes or treatment systems.
A failing catch basin can lead to:
- Localized flooding and erosion
- Damaged asphalt or concrete
- Increased liability from trip hazards
- Non-compliance with NPDES or city drainage codes
- Sediment and trash entering the stormwater system
Signs You Need Catch Basin Replacement
If you’ve noticed any of the following, it may be time for a full or partial replacement:
- Sinking pavement or visible collapse around the basin
- Cracked or deteriorated concrete walls
- Persistent clogging or standing water
- Improper slope or outdated design
- Pipes pulling away or separating at joints
💡 Don’t wait for a full failure—early intervention saves thousands in repair costs.
Our Catch Basin Installation Process
Every project begins with a site visit and assessment. From there, we follow a precise and proven process:
- Evaluation & Planning
- Site walk and elevation check
- Drainage volume and flow analysis
- Utility locating and permitting
- Demolition & Excavation
- Safe removal of damaged structure
- Excavation to subgrade
- Soil stabilization (as needed)
- New Basin Installation
- Precast or cast-in-place concrete
- Traffic-rated grates and curb inlets
- Custom sizing for flow and sediment needs
- Pipe Integration & Backfill
- Tie-in to existing storm lines or new connections
- Watertight seals and inspections
- Gravel base and engineered backfill
- Surface Restoration
- Asphalt or concrete patching
- Striping, ADA markings, and grading
- Final flow test and clean-up
🚧 We also offer emergency replacement services for collapsed or hazardous basins.
Optional Upgrades & Add-Ons
Looking to enhance your system beyond code minimums? Gullywasher provides:
- Catch basin filter inserts (for trash, oil, sediment)
- Custom inlet covers (ADA, bike-safe, tamper-proof)
- Sump extensions for increased sediment capture
- Green infrastructure tie-ins for bioswales or filter vaults
Ask about annual maintenance packages to keep your new system clean and functional year-round.
Who We Work With
We serve clients across Southern California, including:
- General contractors & site developers
- Industrial facilities & warehouses
- Commercial properties & HOAs
- Public works departments
- Schools, hospitals & institutions
📍 Local service areas include: Los Angeles, Torrance, Redondo Beach, Manhattan Beach, Long Beach, Carson, and surrounding communities.
Why Gullywasher?
✔ Fully bonded and insured (CA)
✔ OSHA-trained technicians
✔ Deep experience with stormwater compliance
✔ Trusted by public and private sector clients alike
We don’t just install—it’s engineered for durability and long-term function. And we document everything for your records and regulators.
Get a Quote Today
If your catch basin is cracked, clogged, or collapsing, we can help. Schedule a free site evaluation or request a quote now.
📞 Call Gullywasher at (206) 799-3296
Related Services
- Stormwater vault cleaning and ensure full system flow and sediment removal at the source
- Catch Basin Replacement to restore drainage performance and prevent localized flooding
- Storm Drain Cleaning for swales and BMPs
- Stormwater Inspection Services for damaged basins and channels
- Stormwater Vault Cleaning to maintain flow, avoid infrastructure damage and stay compliant.
Ask us about a full stormwater maintenance plan to reduce costs and avoid violations.