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Tropical Storm Prep: How to Protect Your Outdoor Spa/Sauna

Posted on July 24, 2026 by Jenna Pitt

Protecting Your Houston Outdoor Spa from Tropical Storms

Tropical storms and hurricanes are a reality for Houston homeowners. High winds, torrential rains, and flying debris can severely damage outdoor hot tubs and spas. Taking a few proactive steps before the storm hits can save you thousands of dollars in repairs and keep your water safe from contamination.

Here are steps on how to secure your outdoor spa and minimize storm damage.

1. Keep the Water Inside the Spa

Do not drain your tub before a storm. While it seems intuitive to empty it, keeping the water inside is actually your best defense.

  • Add Weight: A full hot tub weighs several thousand pounds, preventing high winds from lifting or shifting the unit.
  • Counteract Groundwater: Heavy Houston rains saturate the soil, causing hydrostatic pressure. An empty hot tub can pop out of the ground or shift on its pad due to this rising groundwater.
  • Use Sand bags: Line the base of your spa with sandbags to prevent drifting/shifting of the unit.

2. Balance and Shock the Water

Power outages can last for days or weeks after a major storm, meaning your filtration system will be offline.

  • Super-chlorinate: Shock the water with an extra dose of sanitizer right before the storm.
  • Protect the plumbing: Balanced water prevents algae growth and bacteria buildup while the spa sits stagnant without power.

3. Power Down Completely

Water and electricity are a dangerous combination, especially during floods.

  • Flip the Circuit Breaker: Turn off the power at the main breaker panel and the local disconnect box near the spa.
  • Prevent Electrical Surges: Lightning strikes and grid instability can fry your spa’s expensive electronic control boards and pumps.

4. Secure the Cover and Add Protection

Your spa cover can act like a sail in high winds, risking severe damage to the cover and the shell.

  • Lock the Straps: Fasten all factory cover locks securely.
  • Use Hurricane Straps: Wrap heavy-duty cargo straps or specialized storm straps over the cover and anchor them directly to the spa cabinet or ground.
  • Add a Tarp: Place a heavy tarp over the insulated cover and tie down tightly to keep out dirty runoff and micro-debris.

5. Clear the Surrounding Area

Houston storms bring in strong winds that turn yard objects into dangerous projectiles.

  • Remove Hazards: Move patio furniture, potted plants, pool toys, and nearby tools into a garage, shed, or inside your home.
  • Trim Trees: Cut down loose or dead tree branches hanging directly over your spa area before hurricane season begins.

How to Protect your Outdoor Sauna

Outdoor saunas require different protection than hot tubs. Saunas are primarily wood structures with vulnerable heating elements, making wind resistance and moisture control your top priorities.

Here are steps to guide you on protecting your outdoor sauna:

1. Seal Against Water Intrusion

  • Check the Visual Seals: Ensure all trim boards, door seals, and window silicone are intact.
  • Cover the Vents: Block the intake and exhaust vents with plastic sheeting and tape to keep water out.
  • Remove tape promptly: Uncover these vents immediately after the storm to prevent mold growth inside the humid interior.

2. Protect the Heater and Electronics

Water inside the heater or control panel can completely ruin your sauna’s electrical components.

  • Shut off the Breaker: Turn off the dedicated sauna breaker at your home’s main electrical panel.
  • Wrap Electrical Heaters: If you have an electric heater, wrap the unit tightly in heavy plastic bags or plastic wrap if you suspect water might leak through the roof.

3. Lock and Reinforce the Door

Sauna doors usually rely on a simple magnetic or roller catches, which easily blow open during strong wind gusts.

  • Secure the Latch: Use a heavy-duty bungee cord, ratchet strap, or an exterior latch to lock the door firmly shut.
  • Prevent Internal Water Damage: A door blowing open mid-storm will instantly expose the raw, unsealed interior wood to torrential rain.

While the pre-storm advice is crucial, you must add one critical rule for the aftermath of a Houston storm: NEVER TURN THE POWER BACK ON IF THE EQUIPMENT GOT FLOODED.

If rising water breaches your spa’s equipment bay or your sauna’s heater base, the components must be completely dried, cleared of mud, and inspected by a professional before you flip the breaker back on. Powering up wet components will permanently destroy them.