Lake Sammamish aerial view
Pacific Northwest's Waterfront Specialists

Your Eco-Friendly
Clean-Up Crew

From aquatic weed removal to pressure washing, BlackLagoon Services keeps your waterfront beautiful — naturally and responsibly.

Licensed & Insured
4+
Years of Experience
40+
Team Members
100%
Eco-Friendly Methods
HOA
Commercial & Residential
PNW
Pacific Northwest Based
What We Do

Our Services

Comprehensive waterfront maintenance solutions for residential properties, HOAs, and commercial clients.

Aquatic Weed Removal

Aquatic Weed Removal

Hand-pulled by our dive team — targeting roots for lasting results around docks, swim areas, and shorelines.

Lake Mat Installation

Lake Mat Installation

Eco-friendly lake bottom mats block sunlight to stop weed growth — no chemicals, no hassle.

Pressure Washing

Pressure Washing

Professional cleaning for driveways, docks, walkways, and exterior surfaces using surface-safe methods.

Why BlackLagoon

Waterfront Care You Can Trust

Eco-Friendly Methods
No harmful chemicals — we protect your lake ecosystem while restoring your shoreline.
Experienced Dive Team
Scuba and free-diving certified professionals who target weeds at the root for lasting results.
Flexible Scheduling
Seasonal installations, one-time cleanups, or recurring maintenance — we work around your calendar.
Local & Community-Focused
Founded and operated in the Pacific Northwest by people who love and live on these lakes.
Black Lagoon team
Co-Founders
Thomas & Calvin
Gallery

Our Work in Action

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Elevate Your Shoreline

Call or text us today for a free quote. We're happy to talk through your situation and find the best solution.