Prevent runoff & flooding
Capture roof runoff before it overwhelms drains—pair with compliance audits.
Store the rain. Save on your water bill.
Custom cistern systems designed for Rainwise eligibility and long-term reliability—built by the Puget Sound team trusted by Seattle, Bellevue, and Redmond homeowners.
Why install
Rainwater storage benefits for Puget Sound homes
Rainwise rebates often cover 100% of cistern costs. Explore benefits and link to Rainwise and compliance resources.
Irrigation supply
Use stored water for landscaping year-round. Integrate with service plans.
Rebate funding
Rainwise covers up to 100% of eligible installs. Learn more on our Rainwise page.
Boost sustainability score
Improve property value with documented results and educational guides.
System types
Cistern models tailored to your footprint
Each model includes capacity ranges, space needs, and maintenance notes with links to Rainwise and gutter resources.
Slimline vertical tank
250–530 gallons · Requires 24" depth · Low maintenance. Ideal for Seattle alley homes.
View slimline installs Match with guttersHorizontal low-profile
400–800 gallons · Perfect for Bellevue side yards · Medium maintenance.
See gallery Compare servicesUnderground system
1,000–2,500 gallons · Requires excavation · Annual maintenance with compliance checks.
Review permit needs Check rebatesLinked modular tanks
Combine multiple slim tanks for Redmond or Issaquah lots. Quarterly cleaning recommended.
See modular installs Contact design team
Design & install
From evaluation to rebate processing
Our philosophy: inspect honestly, install with precision, maintain sustainably—mirroring the process on our About page.
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Site evaluation
We measure roof area, review downspouts, and connect you with the Rainwise checker.
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Install & inspection
Our crew installs gutters, cisterns, and overflow piping. Review completed projects.
Gallery
Cistern installs around Puget Sound
Lazy-loaded webp images highlight Seattle, Bellevue, Kirkland, and Issaquah projects.
Kirkland 500-gallon install
Bundled with gutter replacements—see gutter comparison.
Seattle 800-gallon Rainwise project
Rebate covered 90% of costs—details on Rainwise pricing.
Issaquah linked modular tanks
Connected to Issaquah rebate info and compliance audit.
Rebate estimator
Project the rebate for your cistern
Enter roof area and ZIP to calculate estimated RainWise funding for your property.
FAQ
Cistern questions answered
Learn about lifespan, freeze protection, cleaning intervals, and irrigation integration.
Polyethylene tanks carry 20-year warranties. Our installation guarantee matches Rainwise requirements—see process details.
Insulated piping and drain-back valves keep systems safe. Review our winter prep guide and service grid.
Quarterly screen checks with annual sediment removal. Add our maintenance plan or request service.
Yes—connect cisterns to drip systems with filtration. See project examples and code requirements.
Testimonials
Homeowners praise our cistern installs
Geo-specific quotes build trust and support Rainwise conversions.
“Our Bellevue slimline tanks and gutter bundle earned a full Rainwise rebate—Osprey managed every form.”
“Redmond underground cistern stays hidden while irrigating our garden. Inspection passed on first attempt.”
Ready to install your cistern?
Submit the form to kick off your cistern project and receive a prompt follow-up from our team.