Drainage and Water Management in Seattle
Give rainwater a place to go, protecting your soil, landscape, and home along the way.
Drainage Services for Seattle Homes
Watter Belongs Somewhere
Seattle gives us plenty of rain. When water can’t move through a property the way it should, we start seeing the signs: soggy lawns, standing water, eroded soil, muddy pathways, or water collecting where you’d rather sit outside.
As landscape contractors, we start by looking at where the water is coming from, where it wants to go, and what’s getting in its way. Then we design drainage around the property rather than treating one puddle at a time.
We help water get where it wants without taking your garden with it. Proper water management allows roots to grow deeper, helps the soil retain its microbial community, and turns rain into a resource rather than a hazard.
Our drainage services can include French drains, rain gardens, dry wells, catch basins, and downspout rerouting. The right combination depends on your soil, slope, existing landscape, and how you want to use the space.
Water Problems Drainage Can Fix
A puddle can tell us quite a lot. So can a soggy lawn or a washed-out slope. Water never disappears; it just continues its journey somewhere else.
Water pools, erodes, and finds its way into places you wouldn’t want it to go, such as the foundation of your home, your basement, or the roots of a plant that can’t handle wet feet.
We look at the pattern first, then determine what needs to change rather than treating one puddle at a time. Wise water management helps protect your property’s structure, keeping soil where it belongs, and reducing how much supplemental water your landscape needs later.
Depending on your water problem, we’ll assess your property and recommend a solution:
Roof Runoff
Downspout extensions redirect roof water away from your house’s foundation.
We can reroute downspouts through underground drainage pipes and, when appropriate, direct the water toward a dry well or another safe discharge area.
Standing Water
We can solve the yard pooling situation with different drainage solutions.
We can use catch basins, drainage pipes, French drains, grading, or rain gardens to move or absorb it. F We assess your property to recommend a drainage solution.
Soggy Lawn
French drains act as a continuous underground sponge to lower the water table and dry out a soggy lawn.
A lawn that stays wet needs help moving water through the soil. Depending on the cause, we may recommend a French drain, soil improvement, grading, or another drainage approach.
Eroded Slopes
A complete treatment to slow runoff and help stabilize a slope combines drainage, grading, retaining walls, erosion-control blankets, and deep-rooted native plants.
This holistic solution dramatically reduces stormwater runoff speed and physically stabilizes the soil to prevent landslides.
Drainage Systems We Build
For Seattle Sustainable Landscapes
We choose drainage systems based on what your property needs. Here are some of the approaches we commonly use around Seattle.
French Drains
A French drain uses a perforated pipe surrounded by drainage gravel to collect excess water underground and move it away from areas where it is causing problems.
Swales
A swale is a shallow, landscaped depression designed to slow runoff and allow water to spread out and gradually seep into the ground.
Dry Wells
A dry well is a buried, perforated underground structure or gravel-filled pit that catches extra stormwater runoff and lets it slowly soak back into the earth.
Rain Gardens
A rain garden is a planted depression designed to capture and absorb runoff. It allows water to slowly seep into the ground while creating a habitat for pollinators and birds.
Dry Creek Beds
A creek bed without the creek. A dry creek bed creates a visible path for runoff using stone and grading. It helps direct water while becoming part of the landscape design.
Downspout Rerouting
We can redirect downspout water away from foundations and toward a safe discharge area, drainage system, or rain garden.
How We Approach Drainage
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1. Site assessment
We walk the property and follow the evidence: where water collects, where soil is eroding, how the ground slopes, and where existing drainage is already moving water.
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2. Drainage design
We match the drainage approach to your soil, slope, landscape, and goals. Sometimes that means a French drain. Sometimes it’s a rain garden, swale, downspout rerouting, or a combination.
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3. Installation
Our construction team installs the drainage system and coordinates it with planting, pathways, patios, retaining walls, and other landscape elements when needed.
Professional Drainage Services in Seattle
Give Water a Wiser Place to Go
Seattle’s rain is only part of the story. The PNW particular conditions like compacted soil, slopes, mature trees, and the way a property was originally graded all affect how water moves. That’s why we first look at the conditions beneath your property and around the landscape, then build a system that works with the way your yard already moves water.
Drainage Questions Answered
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Can drainage prevent water from reaching my foundation?
Yes. Proper drainage can help redirect surface and roof runoff away from your foundation.
Downspout rerouting, grading, dry wells, and other systems may be part of the solution depending on site conditions.
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Do you install rain gardens in Seattle?
Yes. We design and install rain gardens that capture runoff, help water infiltrate into the soil, and create habitat for pollinators and birds. Our landscape designers are ecoPRO and RainWise certified, and if your property is eligible for the RainWise program, we can help you navigate the rebate process.
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Can drainage help with erosion?
Yes. Drainage can reduce erosion by slowing and redirecting runoff. Depending on the site, we may combine drainage with grading, retaining walls, erosion-control materials, and deep-rooted planting.
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How much does drainage work cost?
The cost depends on the drainage problem, site conditions, access, system required, and project size. We assess the property first and then prepare a proposal based on the specific work needed.
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Can drainage be part of a larger landscape project?
Yes. We regularly coordinate drainage with patios, pathways, retaining walls, planting, irrigation, and other landscape construction.
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How do you know which drainage system I need?
We look at where water comes from, where it collects, how the property slopes, and what happens to the water after it moves. From there, we recommend the drainage approach that fits the site.
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Will drainage work disrupt my existing landscape?
Some disruption may be necessary while we install the drainage system. We may temporarily move plants or remove sections of hardscape, then restore them once the work is complete.
Whenever possible, we integrate drainage into existing flower beds and walkways or coordinate it with a broader landscaping project to minimize disruption and avoid disturbing the landscape twice.
