Portland's wet season puts steady pressure on how a property handles runoff. Storm water management covers the systems that move rain off your roof, driveway, and yard without flooding the foundation or washing away soil. This page lists local providers in Portland and across Oregon who design, install, and maintain drainage lines, catch basins, French drains, bioswales, and detention systems.
If water collects near your home after a storm, or a city inspection flagged your site's drainage, a qualified contractor can assess the grade and recommend a fix. Look for a company that explains the cause before quoting the work, holds current Oregon licensing, and has handled properties like yours. Reviews on Google Maps can tell you how a crew communicates and whether they leave the site clean.
Browse the providers below, compare their ratings and service focus, and reach out to a few for a site visit. Getting more than one assessment helps you weigh your options before you commit to a plan.
Stormwater management services in Portland
Frequently asked questions
How much does storm water management cost in Portland?
Cost depends on the size of your property, the drainage problem, and the system that solves it. A small French drain is very different from regrading a lot or installing a detention system. Most Portland companies visit the site, diagnose the cause, and quote after they see the conditions. Ask each provider what the price includes, whether permits are covered, and how they handle surprises once digging starts.
How do I choose a storm water contractor in Portland?
Start with providers who diagnose before they quote, since the right fix depends on why water is pooling. Check that they hold current Oregon licensing and carry insurance. Read their Google Maps reviews for notes on communication and cleanup. Ask about similar jobs they have done nearby and whether they handle city permits. Getting two or three assessments gives you a clearer picture of the work and the price.
When is a storm water problem urgent?
Water pooling against the foundation, seeping into a basement or crawl space, or eroding soil near the house needs prompt attention, because moisture damage compounds over time. Slow drainage on a flat lawn is less pressing but worth handling before the rainy months. If a city inspection flagged your drainage, treat the deadline seriously. A professional can tell you what is cosmetic and what threatens the structure.
What does storm water management include?
It covers the systems that collect rain and route it away from buildings and paved areas. Common work includes French drains, catch basins, downspout and gutter drainage, dry wells, bioswales, regrading, and detention or retention systems on larger sites. Some Portland providers also handle maintenance, such as clearing catch basins and checking pipes, so the system keeps working through the wet season.
Do I need a permit for drainage work in Portland?
Some drainage work in Portland needs review or a permit, especially when it connects to the public storm system or changes how runoff leaves your property. Requirements vary by the scope and your location. A licensed local contractor should know what the city expects and can guide the paperwork. Confirm during the quote who pulls any permits and whether that is included in the price.