Seattle's Premier Custom Sauna Builders for Wellness & Relaxation

Outdoor Saunas in Seattle

Outdoor Sauna – Built for the Pacific Northwest

Looking to turn your backyard, patio, or deck into a wellness escape? At Seattle Custom Saunas, we design and install durable, high-performance outdoor saunas made to thrive in the Northwest’s changing seasons. Whether you’re after a rustic cabin feel or a sleek modern design, our outdoor saunas combine long-lasting craftsmanship with personalized comfort.

We serve homeowners across Seattle and the surrounding areas, including Bellevue, Kirkland, Redmond, and Issaquah. Our team handles everything from design and materials to weatherproofing and installation—delivering fully customized outdoor sauna solutions that fit your space and lifestyle.

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Key Features of Our Outdoor Sauna Installations

No prefab kits here—every outdoor sauna we build is customized to your space, goals, and the challenges of Pacific Northwest weather. We’ll help you make the right choices to ensure lasting performance and comfort.

Outdoor sauna options include:

Moisture-resistant wood like thermowood, Western Red Cedar, or hemlock

Tailored layouts: compact solo units or large multi-person setups

Electric or wood-fired heaters to match your lifestyle and energy setup

Protected entrances, covered porches, or integrated changing benches

Add-ons like outdoor lighting, step platforms, or extended seating

All materials are chosen to resist rain, mold, and seasonal shifts—built to perform through Seattle’s famously wet winters and mild summers.

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Why Outdoor Saunas Are So Popular in Seattle

Outdoor saunas offer a nature-connected experience that fits right into the Northwest lifestyle. Whether you’re decompressing after a long hike, recovering from a bike ride, or unwinding on a rainy day, an outdoor sauna gives you a dedicated wellness space just steps from your door.

Popular installation spots include:

Urban backyards and patios

Rooftop decks in Central Seattle or Queen Anne

Forested lots in Shoreline or Sammamish

Garden spaces in Bellevue or Redmond

Beside hot tubs, plunge pools, or ADUs

Unlike indoor saunas, outdoor builds offer more layout freedom and less impact on interior square footage—while giving you that fresh-air feel every time you step inside.

Why Seattle Chooses Us

We’ve helped homeowners across Seattle, from West Seattle to Woodinville, transform their yards into sauna-ready sanctuaries. Whether you're building beside a garden, facing the Sound, or setting up something secluded in the trees, we have the local expertise to get it done right.

Local team that understands Seattle's weather and terrain

Fully custom builds—no prefab kits

Trusted by homeowners from Seattle to Snoqualmie

Clean, efficient installation with expert project management

Designed for outdoor performance and long-term value

Get a Free Estimate for Your Outdoor Sauna

Your backyard can become your new favorite room. Let’s design a sauna that fits your space, enhances your routine, and performs through every season.