San Francisco · Licensed Sauna Builder
San Francisco Sauna Builder
Licensed and insured sauna builders serving all of San Francisco. Custom saunas, installs, cedar hot tubs, and cold plunges. Call 415-942-0310 for a free estimate.
- We design it for your space, then build it by hand
- Real cedar, hemlock, and spruce, with no chemicals
- Heat and steam that feel just right
- We handle all the city permits for you
Call now: 415-942-0310
About Our Work
Real heat, real wood, and a sauna that lasts.
San Francisco Sauna builds custom saunas, cedar hot tubs, and cold plunges. We work all over San Francisco and nearby towns. We have more than 10 kinds of wood and every type of heater. We do the whole job, from the floor to the roof to the wiring. We build them in basements, in backyards, and on rooftops. We take pride in our work, so you can relax and know it was done right.
Our Work
A few saunas and spas we have built around the city.
Our Services
Saunas, hot tubs, and cold plunges, all built by our own crew.
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Sauna Installation
Full sauna installation services across San Francisco. We set the base, run the wiring, install the heater, and finish any home sauna, kit or custom.
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Custom Saunas
A custom sauna builder in San Francisco. We design and build home saunas to your space, wood, and heat, in cedar, hemlock, and more.
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Infrared Saunas
Infrared sauna installation in San Francisco. Low-heat, plug-in dry saunas for easy home use, plus hybrid saunas that do infrared and steam.
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Traditional Saunas
Traditional Finnish sauna builder in San Francisco. Hot, dry saunas with real steam, built around a proper sauna heater and rocks.
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Steam Saunas
Steam sauna and steam shower installation in San Francisco. Wet-heat rooms built with a steam generator, sealed tile, and proper drainage.
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Barrel Saunas
Barrel sauna installation in San Francisco. Round cedar cabin saunas for the backyard, with electric or wood-fired heat.
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Indoor Saunas
Indoor sauna builder in San Francisco. Home saunas built into spare rooms, bathrooms, and basements, sized to fit tight city floor plans.
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Outdoor Saunas
Outdoor sauna builder in San Francisco. Backyard cabin saunas built to handle fog, salt, and rain, with electric or wood-fired heat.
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Cedar Hot Tubs
Cedar hot tub install in San Francisco. Real wood soaking tubs, electric or wood-fired, plus Japanese-style tubs and fitted cedar tub covers.
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Cold Plunges
Cold plunge installation in San Francisco. Cedar, fiberglass, or steel plunges with a right-sized chiller and an easy-care clean-water system.
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Commercial Saunas
Commercial sauna builder in San Francisco. Heavy-use saunas for gyms, spas, hotels, and clubs, built to code with ADA-friendly access.
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Sauna Repair
Sauna repair in San Francisco. Sauna heater repair, new stones and wood, bench rebuilds, vent fixes, and sauna accessories for any brand.
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Custom Sauna Design
Custom sauna design in San Francisco. We plan your room, wood, heater, and accessories before a single board is cut.
Recent Builds
A few of our recent San Francisco builds.
Here are a few saunas and spas we built for homes around the city.
Edwardian bath conversion
A Pacific Heights bathroom turned into a sauna, lined in soft pale wood with comfy benches and a gentle, even heat.
Cedar barrel in a city garden
A cedar barrel sauna set into a small Noe Valley garden, with a handmade door and bronze parts built to last in the fog and salt.
Sauna and open-air rinse
A Bernal Heights backyard with a cedar sauna and an open-air cold rinse, placed to catch the afternoon sun before you plunge.
Hillside cabin for a crowd
A big cedar sauna built into a St. Francis Wood hillside for a family that likes company, with wide benches and plenty of airflow.
Garden-level hemlock build
A Richmond basement room turned into a warm indoor sauna, lined in hemlock with soft lighting and a heater that makes real steam.
Clear-grain barrel interior
Inside a Glen Park barrel sauna, lined in clean cedar with curved benches and airflow that keeps it fresh, never stuffy.
Why Choose Us
We are a licensed and insured sauna builder, and we do the whole job with our own crew, so there is no finger-pointing between trades. We build every kind of sauna, from a small basement sauna to a full backyard cabin, plus cedar hot tubs and cold plunges. Our team knows Finnish and American sauna building, we size the heat and the vents so the steam comes out right, and we pull the city permits for you. San Francisco homeowners call us because we show up when we say we will, price the job upfront, and stand behind the work for years.
Our Mission
Our goal is simple. We want to build custom saunas so well made and so easy to use that they become part of how you live, even when it is cold and foggy out. Every room should hold up for years, heat evenly every time, and be a place you actually use, not a backyard box that sits empty by winter.
Why a Good Sauna Builder Matters
A sauna puts heat, water, and electricity in one small room, so a bad build is more than a letdown. The wrong wiring trips breakers or worse. Poor sealing and venting lead to mold and rot that ruin the wood and creep into the rest of your home. A heater sized wrong never makes real steam. A rushed, unpermitted job can also cost you at resale. Hiring a licensed, insured builder who does it right the first time protects your home, your money, and your warranty, whether it is a new build or a sauna repair.
What Affects the Cost of Custom Saunas
A few choices set the price of a custom sauna:
- Size and spot. A small indoor room costs less than a large backyard cabin that needs its own base and power line.
- Wood. Cedar, hemlock, and specialty woods each cost different amounts for their look, smell, and feel.
- The sauna heater. Electric, wood-fired, and hybrid heaters land at different prices, and some homes need wiring work.
- Glass and lights. Glass doors, windows, and built-in lighting add to the cost.
- Building work. Framing, sealing, vents, and any code fixes all add up.
- Permits. City fees change with the size of the build, and we handle them.
After we design it with you, you get one flat price for the design, wood, labor, and permits.
Cities We Serve
We build for homes all over the city and down the Peninsula.
What San Francisco Homeowners Say
Frequently Asked Questions
What are the typical costs associated with building a custom home sauna?
The big drivers are size, wood, and the sauna heater. A small indoor cedar sauna costs less than a large backyard cabin with a wood-fired heater and glass walls. After we design it with you, you get one flat price that covers the design, wood, labor, and permits.
What are the benefits of hiring a professional sauna builder?
A professional sauna builder gets the parts right that make a sauna work: the heat sizing, the venting, the sealing, and the wiring. You get real steam, a room that lasts, permits handled, and one person who stands behind the whole job instead of a box of parts and a manual.
Is a sauna in your house worth it?
For most people who use it, yes. A home sauna is easy to reach, private, and ready whenever you want it. Regular sauna use is tied to better recovery, sleep, and relaxation, and a well-built one lasts for years, so the cost spreads out over a lot of use.
Do saunas increase property value?
A quality, permitted sauna is a real selling point and can add appeal for the right buyer. The key words are quality and permitted. A well-built, code-compliant sauna reads as an upgrade, while a rough, unpermitted one can raise questions at resale.
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