Indoor Saunas

Create a Private Escape in Your Home

Imagine stepping into the warmth of a spa without ever leaving your house. At Portland Custom Saunas, we design and build fully customized indoor saunas that transform everyday spaces into personal sanctuaries. Whether it’s a basement remodel, a bathroom addition, or an unused corner of a master suite, we turn underutilized square footage into a retreat focused on comfort, wellness, and durability.

What Makes Our Indoor Saunas Different

Every sauna we create is unique—built for your home, not from a one-size-fits-all kit. Our process includes careful planning, layout design, and expert installation. We use premium woods such as cedar, hemlock, or spruce, and match them with advanced heating systems—electric, infrared, hybrid, or steam—based on your preferences. For those wanting a true luxury experience, we also offer optional upgrades like ambient LED lighting, integrated sound systems, and ergonomic seating to make your sauna feel like a spa retreat inside your Portland home.

Frequently Asked Questions

Can a sauna be installed in a basement or garage?

Yes, many Portland homeowners convert basements, garages, or unused spaces into private wellness retreats. These areas are often perfect because they provide extra square footage that might otherwise go unused. A basement sauna can become a cozy, spa-like escape, while a garage sauna works well for those who prefer easy ventilation and separation from the main house. The key considerations are ventilation, moisture control, and electrical supply. Our team ensures your chosen space is properly prepared, sealed, and equipped with the right heater so that your sauna performs safely and efficiently for years.

What sizes are common for indoor saunas?

Indoor saunas can be customized to fit almost any space, from compact one-person units to larger family-sized builds. Typical layouts include:

* 4’ x 4’ – best for one person

* 5’ x 7’ – fits two to three people comfortably

* 6’ x 8’ or 8’ x 10’ – ideal for families or home gyms

Ceiling height matters, too. Around 7 feet is optimal for heat efficiency while maintaining headroom. Taller ceilings may require stronger heating systems to maintain even warmth. We’ve installed saunas in creative spaces across Portland—including angled attic nooks, remodeled closets, and basement alcoves. During your consultation, we’ll design the layout that maximizes both comfort and efficiency.

Do indoor saunas need special wiring or ventilation?

Yes, both are essential for safe and efficient operation. Most indoor saunas require a dedicated electrical circuit, often with GFCI protection. Our team coordinates with your licensed Portland electrician—or connects you with one we trust—to ensure everything is code-compliant. Proper airflow is equally important: good ventilation prevents moisture buildup, helps your sauna dry between sessions, and ensures a comfortable atmosphere. These details are included in our planning process so your sauna blends seamlessly into your home.

How long does installation take?

Most indoor sauna projects are completed in about one to two weeks, depending on size and design. After an initial consultation, we create a design plan, confirm materials, and schedule the build. Our installers work efficiently and respectfully, minimizing disruption in your home. Once finished, we provide a full walkthrough and maintenance guide so you know exactly how to use and care for your sauna.

What’s the best room in a Portland home for an indoor sauna?

The “best” location depends on your goals. A bathroom sauna adds spa-level convenience just steps from the shower. A basement sauna provides a larger, more private retreat. A spare room or garage conversion works well for multi-use wellness spaces like yoga or fitness studios. We assess your floor plan, ventilation needs, and lifestyle to recommend the ideal location for long-term comfort and performance.