Lake Austin hydrilla questions, answered.

Cutting and pulling remove what you can see, but hydrilla regrows from roots, buried tubers and loose fragments, often within weeks in summer. A lake floor barrier covers the bottom and blocks sunlight, so the plants underneath can't grow back in that zone.

Yes. The Lake Floor system is a physical barrier. No herbicides are used. Herbicides aren't permitted on Lake Austin anyway, because the lake supplies the City's drinking-water treatment plants.

Yes. Removing or controlling hydrilla in Texas public waters, including installing bottom barriers, requires Texas Parks and Wildlife Department approval. Lake Floor Austin prepares and files the paperwork as part of every project. See our permit guide.

No. Barriers are cut and fitted around pilings, lift cradles, ladders and intake lines during installation, and the layout is planned during your on-site assessment.

Pricing depends on square footage, water depth, access and finish. Installs start at 192 sq. ft. and scale up to any size. Every quote follows a free on-site waterfront assessment. See packages.

Barriers are built to stay in place across seasons. Silt settles on any lake bottom over time, and loose fragments can try to root in it, so periodic inspection and cleaning keeps the zone clear.

Installs start at 192 sq. ft. for a swim area or paddleboard launch. Dock and slip projects usually start around 384 sq. ft., and larger estate waterfronts are sized to fit.

Yes. We clear the existing growth in the install zone first, bag the fragments and haul them away, then lay the barrier.

A lake floor barrier blocks light for any rooted bottom plant, including Eurasian watermilfoil, which is also present on Lake Austin. Floating algae mats are a different problem; ask us during your assessment.

No. The barrier alone clears the hydrilla. The sand finish is an upgrade for swim areas and shoreline entries where you'll be standing or wading.

Any time the water is workable. Installing before the late-spring growth surge keeps your area clear all summer, but we install year-round, and clearing a thick mid-summer patch makes an immediate difference.

Lake Austin is our home water. We take Lake Travis and Highland Lakes projects on request, depending on water level and site conditions. See service areas.

Fill out the free quote form (photos help), call or text 512-699-4998, or email [email protected]. Phil will follow up to schedule your on-site assessment.