Seattle Yard Drainage Contractor
Seattle Yard Drainage Contractor
Professional yard drainage solutions serving Seattle since 1975. French drains, catch basins, swales, and retaining wall drainage. Licensed, bonded & insured. Free on-site estimates.
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Expert Yard Drainage Contractors Serving Seattle
Standing water, soggy lawns, and drainage problems are common challenges for Seattle homeowners — and they almost always have a solution. At New Life Rockeries, we've been solving yard drainage problems across Seattle and surrounding communities since 1975, and we understand the soil conditions, rainfall patterns, and topography that make proper drainage critical in Western Washington.
Our Seattle drainage installations address the root cause of water problems — not just the symptoms. We assess your property's grading, soil type, and water flow patterns to design a drainage system that moves water away from your home, yard, and retaining walls effectively and permanently.
Whether you need a French drain to intercept groundwater, a catch basin to collect surface runoff, a swale to redirect water flow, or a complete drainage system for a new retaining wall, our team brings the same expertise to every Seattle project.
Poor drainage is the #1 cause of retaining wall failure in Western Washington. Our crews are licensed, bonded, and insured in Washington State.
Seattle receives over 37 inches of rain annually, and the city's glacial till soils — dense, nearly impermeable clay-silt-gravel — shed water slowly and hold it near the surface for extended periods. The result is that yard drainage problems are endemic in Seattle: standing water on lawns, saturated soil that kills plants, water seeping into basements and crawl spaces, and erosion on hillside properties. New Life Rockeries has been solving yard drainage problems in Seattle since 1975, and we've worked on drainage projects across the city's full range of neighborhoods and property types.
Seattle's hillside neighborhoods — Queen Anne, Magnolia, Capitol Hill, Beacon Hill, Rainier Valley — have the most complex drainage challenges. Water running down a steep slope can erode soil, undermine retaining walls, and concentrate at the base of the slope where it saturates the soil and threatens structures. We design drainage systems that intercept runoff at the top of the slope, channel it safely to the sides, and discharge it to the street or a storm drain without concentrating it on neighboring properties.
Seattle's stormwater regulations require that drainage improvements on properties over a certain size be designed to manage runoff in accordance with the city's stormwater manual. For most residential properties, this means that drainage improvements must not increase runoff to neighboring properties or the public storm system. We design drainage systems that comply with Seattle's stormwater requirements and advise on permit requirements for your specific project.
We install French drains, catch basins, channel drains, dry creek beds, rain gardens, and complete drainage systems — selecting the right combination of solutions for your specific drainage problem. Every drainage system we install includes a clear discharge point and is designed to handle Seattle's peak rainfall events, not just average conditions.
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Why New Life Rockeries?
- Yard drainage specialists serving Seattle since 1975
- We diagnose the root cause, not just the symptoms
- Integrated drainage + retaining wall expertise
- Free on-site estimates with written proposals
- Licensed, bonded & insured in Washington State
- All drainage work permitted and inspected as required
- 4.9 ★ Google rating · 120 reviews
- Serving 29 cities across King, Snohomish & Skagit Counties
- Transparent Payment Schedule
How Much Does Yard Drainage Cost in Seattle?
Yard drainage costs in Seattle depend on the type of system, the extent of the drainage problem, and site conditions. Below are typical ranges based on our completed projects.
Free Estimates: All prices include site preparation, pipe installation, gravel backfill, and cleanup. We provide free on-site estimates with detailed written proposals — no surprises.
What We Build
French Drain Installation
Perforated pipe systems installed in gravel-filled trenches that intercept and redirect groundwater away from your Seattle home, yard, and retaining walls. French drains are the most effective solution for chronic wet areas and soggy lawns in the Pacific Northwest.
Catch Basins & Surface Drains
Surface drainage structures that collect and redirect runoff from Seattle driveways, patios, low spots, and downspouts. Connected to underground pipe systems that discharge water safely away.
Swales & Grading
Graded drainage channels and yard regrading that redirect surface water flow away from your Seattle home and landscaping. A natural, low-maintenance drainage solution integrated into your landscape.
Retaining Wall Drainage
Drainage systems installed behind Seattle retaining walls to prevent hydrostatic pressure buildup — the #1 cause of retaining wall failure. Includes drain pipe, gravel backfill, filter fabric, and weep holes.
Downspout Drainage
Underground pipe systems that capture roof runoff from Seattle downspouts and carry it away from your foundation and yard. We connect downspouts to underground drain lines that discharge safely.
Dry Wells & Infiltration Systems
Underground infiltration systems that collect and slowly release water into the soil. Dry wells are ideal for Seattle properties where water cannot be discharged to the street and the soil has adequate permeability.
What Our Customers Say
"We had chronic standing water in our backyard every winter. NLR installed a French drain system and the problem is completely solved. They diagnosed the issue accurately, explained the solution clearly, and the installation was clean and professional."
"Our retaining wall was failing because of poor drainage behind it. NLR repaired the wall and installed a proper drainage system at the same time. Two years later, no problems. Highly recommend their integrated approach."
"Water was pooling against our foundation every winter. NLR installed catch basins, connected our downspouts to an underground system, and regraded the yard. The difference is remarkable. Professional team, fair price."
Common Questions
Have more questions? We're happy to walk you through the process on a free consultation call.
Call UsYard drainage costs in Seattle typically range from $1,500 for a simple French drain to $20,000+ for a comprehensive drainage system. We provide free on-site assessments and written estimates.
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Drainage Problem in Seattle? Get a Free Assessment.
Call us at 425-584-6878 or fill out the form above. We'll visit your property, assess your drainage situation, and provide a detailed written estimate — no pressure, no obligation.