Indoor
Custom Indoor Saunas
Transform a bathroom, basement, home gym, spare room, or dedicated wellness space into a custom indoor sauna designed around your layout, materials, heater, lighting, and daily use.
Explore Indoor Saunas
Custom Sauna Design &
Installation in Boise, Idaho
Premium indoor, outdoor, infrared, and modular sauna solutions for homes, builders, designers, and wellness projects throughout the Boise Metro, Idaho, and Eastern Oregon.
Luxury wellness, Idaho living — from private homes and mountain retreats to gyms, hospitality, and design-led commercial spaces.
Serving the Boise Metro, Idaho & Eastern Oregon
A foundation clients trust
25+Years of Experience
Thousandsof Projects Completed
Custom + ModularSauna Solutions
Residential + CommercialExpertise
Sauna Solutions
Designed around how you want to sauna.
Whether you’re creating a custom wellness space inside your home, adding a backyard sauna, exploring infrared, or looking for a faster modular option, we help you choose the right solution for your space, goals, budget, and timeline.
Outdoor
Custom Outdoor Saunas
Create a backyard, poolside, rooftop, or hospitality sauna experience built for the outdoors with thoughtful planning, durable materials, and a premium finished feel.
Explore Outdoor Saunas
Infrared
Infrared Saunas
Infrared saunas use radiant heat to warm the body directly at lower temperatures, making them a great fit for home gyms, wellness rooms, and modern recovery spaces.
Explore Infrared Saunas
Modular
Modular Sauna Installation
For clients who want a faster path to a finished sauna, modular and pre-built options can offer a beautiful, efficient solution with professional guidance and installation.
Explore Modular SaunasWhy Les Bois
Thoughtfully designed. Expertly executed. Built to last.
A sauna is more than a product you place in a room. It has to work with the space, the materials, the heat source, the ventilation, the surrounding construction, and the way you plan to use it.
At Les Bois Sauna & Leisure, we help guide every major decision — from sauna type and layout to materials, heaters, glass, lighting, ventilation, waterproofing considerations, and installation details.
We work with homeowners, builders, architects, interior designers, developers, gyms, wellness facilities, and hospitality clients to create sauna spaces that feel beautiful, function properly, and are built with long-term use in mind.
Beyond the Sauna
Additional wellness & specialty spaces.
Additional wellness and specialty spaces for residential, commercial, and hospitality projects.
Traditional Saunas
Classic Finnish-style heat with stones, steam, and stillness.
Hybrid Saunas
Traditional heat paired with infrared in a single space.
Steam Rooms
Tiled steam environments designed alongside the sauna.
Commercial Sauna Installations
Gyms, hospitality, multi-family, and wellness facilities.
Sauna Renovations
Updating, replacing, or refinishing an existing sauna.
Wellness Space Buildouts
Sauna, steam, cold plunge, and shower areas planned together.
For your primary service path, see indoor, outdoor, infrared, or modular sauna installation.
Materials, Heaters & Craftsmanship
The sauna is one piece. The room around it matters just as much.
We help clients think through the sauna itself and the finish details around it — wood, tile, glass, lighting, heater, controls, ventilation, waterproofing, and the surrounding wellness space.
Wood + Finishes
Species, grain & finish
Western Red CedarHemlockAspenThermo-AspenReclaimed + Specialty
Species chosen for heat performance, longevity, and the visual logic of the room — paired with benches, backrests, and trim detailed to architectural standards.
Heaters + Stones
Heat source & controls
HUUM·IKI·Harvia
Premium heater systems from HUUM, IKI, Harvia, and others — sized to the room and matched with the right wall, app, or Wi-Fi controls for how you plan to use the space.
Tile + Surfaces
Tile, glass & the surrounding room
Sauna floors, steam shower walls, thresholds, and adjacent wellness areas are coordinated as one surface story — tile selections, glass enclosures, lighting, and waterproofing all considered together so the finished space reads as one room.
What we help you decide
Every project moves through the same set of considerations. These are the decisions we guide alongside you.
Wood + Finishes
Cedar, hemlock, aspen, and thermo-treated species matched to the look, feel, and heat performance of the room.
Heater Selection
HUUM, IKI, Harvia, and other premium systems sized to the room and matched to the experience you want.
Tile + Flooring
Sauna thresholds, steam floors, and surrounding wet areas coordinated as one continuous surface story.
Glass + Lighting
Full-glass fronts, frameless doors, and layered lighting — ceiling, bench, and feature — integrated cleanly.
Ventilation + Waterproofing
Intake, exhaust, substrate, and membrane decisions made early — for comfort, performance, and long-term durability.
Controls + Upgrades
Wall, app, and Wi-Fi-enabled controls, red light therapy, audio, and other refinements planned to your routine.
Gallery
A look at the spaces we help create.
Every sauna project is shaped by the space, the client, the materials, and the intended experience. This gallery gives a glimpse into the level of warmth, detail, and finish we want each project to reflect.
Custom indoor sauna
Sauna + steam shower in glass
Heater with backlit stone
Backlit onyx column with heater
Warm cedar galley sauna with facing benches
Warm pine interior with L-bench and basket heater
Outdoor cedar sauna with hot tub on patio
Process
From first conversation to final walkthrough.
We make the process clear from the beginning, helping you understand what is possible, what fits your space, and what needs to happen before installation begins.
- 01
Consultation
We start with a conversation about your space, goals, budget, timeline, and the type of sauna experience you want to create.
- 02
Space + Design Review
We review the location, layout, site conditions, and whether a custom, modular, indoor, outdoor, traditional, infrared, or hybrid solution makes the most sense.
- 03
Materials + System Selection
We guide the decisions around wood, heater, glass, lighting, ventilation, controls, and other details that shape the final experience.
- 04
Proposal + Planning
Once the direction is clear, we provide proposal details and coordinate the next steps for measurement, product selection, fabrication, and scheduling.
- 05
Installation + Walkthrough
Your sauna is installed, tested, and reviewed with you so you understand how to use and care for the finished space.
Questions
Common sauna questions, answered.
A sauna project comes with a lot of decisions. Here are a few of the questions clients often ask before getting started.
View All FAQsMost residential sauna projects range from $15,000–$50,000+, depending on size, materials, heater selection, glass, lighting, and whether the sauna is custom-built or modular.
Custom saunas allow for the most personalized fit and finish. Modular saunas can be a great option for clients looking for a faster installation timeline and lower overall investment.
Traditional saunas heat the air using a heater and stones. Infrared saunas use radiant heat panels to warm the body directly at lower temperatures.
Yes. Saunas can be installed in bathrooms, basements, gyms, spare rooms, backyards, pool areas, rooftops, hospitality spaces, and wellness facilities.
Most modular sauna installations can be completed in 1–2 days once materials arrive. Custom projects vary but often range from several days to two weeks for installation.
Most saunas require a dedicated electrical circuit, and proper ventilation is important for comfort, heater performance, and long-term durability.
Service Area
Serving Boise, Idaho, and select projects throughout the Southeast.
Les Bois Sauna & Leisure serves clients in Boise, North Idaho, and throughout Idaho, with select high-end residential and commercial projects across Idaho and Eastern Oregon.
We also work with clients and project teams in markets including Charlotte, Nashville, Knoxville, Asheville, Charleston, Greenville, Raleigh, and beyond depending on the scope of the project.
- Charlotte·
- Nashville·
- Knoxville·
- Asheville·
- Charleston·
- Greenville·
- Raleigh
Begin
Start your sauna project.
Tell us about your space, goals, and vision. We’ll help you determine the right sauna solution and the next steps for your project.