How Much Does a Home Sauna Cost in 2025?
A home sauna costs an average of $3,100
On average, a home sauna costs $3,100, or between $2,500 and $7,000.
Labor can account for 30% to 50% of the total cost, with installer rates ranging from $45 to $200 per hour.
Homeowners can select indoor, outdoor, prefabricated, custom, wood-burning, dry, or infrared sauna types to match their budget and preferences.
Prefabricated kits are the most budget-friendly option, while custom builds provide more personalization at a higher price point.
Hiring professionals to install your sauna ensures a safe and durable build.
This article was updated using automation technology and thoroughly reviewed for accuracy by HomeAdvisor Editor Ryan Noonan.
The average cost to install a home sauna ranges from $2,500 to $7,000, with most homeowners paying an average of $3,100. Sauna installation costs vary depending on the size and design, heater type, location, and level of customization. Labor accounts for 30% to 50% of the total cost. Staying on budget is key, and working with a qualified pro helps you get a safe, high-quality setup.
Home Sauna Cost Factors
The cost of installing a home sauna depends on several factors, including size, design, additional features, heater type, location, and labor requirements.
Size
The larger your sauna, the more materials and labor you’ll need—and the higher your final bill will climb. Most saunas range from $50 to $200 per square foot, but prices may be higher for customized designs. The general rule for sizing is to allow two feet of seating space or six feet of reclining space per person.
The average two-person sauna is 16 square feet, costing between $800 and $3,200, while the average four-person sauna is 40 square feet, costing between $2,000 and $8,000.
Sauna Type
You’ll find plenty of options—indoor, outdoor, prefab, custom, wood-burning, infrared, or classic dry—so it’s easy to match the setup to your space, budget, and style. Each type varies in design, heating source, location, and cost. The total installation price depends on the level of customization, materials, and labor required. Prefabricated infrared saunas are often the most cost-effective, ranging from $1,000 to $5,000, while custom designs are the most expensive, with some costing upwards of $10,000.
| Sauna Type | Average Cost Range |
|---|---|
| Indoor | $3,000–$9,000+ |
| Outdoor | $3,000–$6,000 |
| Prefabricated | $2,500–$7,000 |
| Custom | $4,000–$10,000+ |
| Wood-burning | $3,000–$6,000 |
| Dry | $2,500–$10,000+ |
| Infrared | $1,500–$7,000 |
Features
You can upgrade comfort and function with add-ons like backrests, speakers, or extra windows. While standard designs often include a single bench, you can add extras such as backrests, speakers, and windows for an additional price.
| Feature | Average Cost Range |
|---|---|
| Backrest | $50–$75 |
| Bench | $100–$200 |
| Lights | $50–$300 |
| Speakers | $150–$900 |
| Control panel | $250–$800 |
| Doors | $700–$1,200 |
| Fog-free mirrors | $25–$450 |
| Aromatherapy machines | $25–$100 |
| Thermometer | $20–$80 |
Prefab vs. Customization
When it’s time to buy, you’ll need to pick between a prefab kit and a fully custom build. Prefabricated kits include everything needed to build the sauna and are the more budget-friendly option, ranging from $2,500 to $7,500. Custom saunas are built from the ground up and can be completely personalized. Building a custom sauna costs between $4,000 and $10,000, but it varies depending on the size, features, and design.
Location in Home
Where you put the sauna makes a big difference in the final price tag. Indoor saunas, such as those in basements, garages, walk-in closets, or bathrooms, range from $3,000 to $9,000. They often cost more to install than outdoor saunas because they require a ventilation system to keep the surrounding areas free of heat, moisture, and humidity. A single ventilation fan costs between $250 and $600, while an entire ventilation system with ductwork ranges from $2,000 to $4,000.
The average cost to install an outdoor sauna is between $3,000 and $6,000. Outdoor models are often built from wood and placed on a level concrete slab. To pour concrete, expect to pay an average of $6 per square foot.
Labor
Labor accounts for 30 to 50% of the total cost of installing a sauna, but it varies depending on the type of sauna and the complexity of the installation. Professional installation of a prefabricated sauna kit ranges from $300 to $1,500, while a pre-cut kit ranges from $1,500 to $2,500 .
Planning a fully custom sauna? Budget $45 to $200 per hour for a local sauna company’s expertise. Depending on the installation requirements, you may also have to hire an electrician at $50 to $100 per hour and a plumber at $45 to $200 per hour .
Repairs
If your sauna stops working, weigh the cost of a quick repair against the price of a full replacement. Minor issues, such as broken components or small structural damages, are often easily repaired within a matter of hours by an experienced technician. The average cost of sauna repair ranges from $170 to $600, depending on the extent of the damage.
Major damage or a total breakdown means starting fresh with a new sauna. Replacement involves removing the old sauna, disposing of materials, and installing a new model.
Does a Home Sauna Increase Home Value?
Whether a sauna bumps up resale value depends on the buyer. It may not clinch the sale, but for shoppers who love wellness perks, the extra luxury can be a welcome bonus. Some buyers may be deterred because they view the sauna as a waste of space or are concerned about the ongoing maintenance costs. While they won’t significantly increase the sale price of a home, saunas can enhance the property's appeal to the right buyer.
Budgeting for a Sauna at Home
A home sauna doesn’t have to break the bank. Try these wallet-friendly tips:
Opt for a smaller design suited for one or two people.
Skip the extra features and choose a basic model.
Consider purchasing a prefabricated kit instead of a custom design.
Get estimates from multiple contractors to find the most cost-effective option in your area.
How HomeAdvisor Gets Its Cost Data
No place is more important than your home, which is why HomeAdvisor connects homeowners with local pros to transform their houses into homes they love. To help homeowners prepare for their next project, HomeAdvisor provides readers with accurate cost data and follows strict editorial guidelines. After a project is complete, we survey real customers about the costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
Frequently Asked Questions
A basic plug-in infrared unit may not need a permit, but the rules change if you’re adding new wiring, plumbing, or ventilation. Any time the project touches your home’s electrical or plumbing system, plan on pulling a permit and scheduling inspections. Check with your local building department first so your new sauna meets code and stays safe.
Most homeowners tuck an outdoor sauna near the pool, deck, or a quiet corner of the yard where ventilation is easy. Indoor spots work, too—think basement, large bathroom, or even a walk-in closet—as long as the space can handle heat and moisture and a pro signs off on ventilation and electrical needs.
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