Can a Sauna Void Home Insurance? What Homeowners Need to Know

One of the most common—and most misunderstood—questions homeowners ask before installing a sauna is:

“Will installing a sauna void my home insurance?”

The short answer is reassuring:

No, a sauna does not automatically void your homeowners insurance.

However, there are situations where insurance coverage can be denied if a sauna is installed incorrectly, unpermitted, or in violation of safety standards.

This guide explains:

• How home insurance companies view saunas

• When a sauna can cause coverage issues

• What insurers actually care about

• How to install a sauna without risking coverage

• Simple steps to protect yourself before and after installation

If you’re planning an indoor or outdoor sauna, this article will help you avoid insurance surprises.

How Home Insurance Companies View Saunas

From an insurance perspective, a sauna is typically classified as:

• A permanent home improvement

• A fixed electrical appliance (for electric saunas)

• An accessory structure (for outdoor saunas)

Insurance companies generally do not prohibit saunas. Many homes already include:

• Hot tubs

• Fireplaces

• Steam showers

• Electric heaters

Saunas are treated similarly—as long as they are installed safely and legally.

When a Sauna Can Cause Insurance Problems

While saunas themselves are not an issue, how they are installed absolutely matters.

1. Unpermitted Electrical Work

The most common insurance issue arises when:

• Electrical permits were required but not pulled

• Work was done improperly or DIY without inspection

If a fire occurs and an insurer discovers:

• No permit

• Non-code-compliant wiring

• Undersized breakers or improper connections

Coverage for that claim may be denied.

Before installation, review our Home Sauna Installation guide to understand permitting requirements.

2. Improper Electrical Installation

Insurance companies care deeply about electrical safety.

Red flags include:

• Shared circuits instead of dedicated circuits

• Incorrect wire gauge

• Missing grounding or bonding

• Ignoring manufacturer instructions

Using a properly sized heater and circuit is essential. Our Sauna Heater Size Calculator helps ensure compliance from the start.

3. Wood-Burning Sauna Stoves Indoors

This is a major risk category.

In most jurisdictions:

• Indoor wood-burning sauna stoves are prohibited

• Solid-fuel appliances require special approvals, chimneys, and fire separation

Installing a wood-burning stove indoors without approval is one of the fastest ways to jeopardize insurance coverage.

Indoor residential saunas should use electric sauna heaters or infrared heaters only.

4. Outdoor Saunas Installed Without Disclosure

Outdoor saunas are often considered accessory structures.

Insurance issues can arise if:

• The structure wasn’t disclosed

• Property value increased significantly

• Electrical service was added without notice

This does not mean outdoor saunas are a problem—it means they should be documented.

You can explore compliant options in our Outdoor Saunas collection.

Indoor vs Outdoor Saunas: Insurance Differences

Indoor Saunas

Indoor saunas are usually:

• Covered under your existing dwelling policy

• Treated like other fixed home improvements

As long as they are:

• Permitted when required

• Installed to code

• Electrically compliant

They rarely cause insurance issues.

You can browse compliant options in our Indoor Saunas collection.

Outdoor Saunas

Outdoor saunas may require:

• A policy update

• Coverage under “other structures”

• Confirmation of electrical compliance

This is similar to sheds, pool houses, or detached garages.

Does Insurance Go Up After Installing a Sauna?

Usually:

• No

• Or only a minor adjustment

Factors that could slightly affect premiums:

• Increased property value

• Detached structures

• High-end custom builds

For most homeowners, the cost impact—if any—is minimal.

What Insurance Companies Actually Care About

Insurance providers focus on risk, not lifestyle.

They care about:

• Fire risk

• Electrical safety

• Structural integrity

• Compliance with local code

• Professional installation or inspection

They generally do not care about:

• Sauna temperature

• Usage frequency

• Health benefits

• Sauna brand (as long as it’s listed and compliant)

Infrared Saunas and Insurance Risk

Infrared saunas are often considered lower risk because they:

• Operate at lower temperatures

• Use lower amperage

• Produce minimal moisture

• Often plug into standard circuits

This makes them one of the easiest sauna types to insure.

You can explore options in our Infrared Saunas collection.

Should You Notify Your Insurance Company?

Best practice:

• Yes, especially for outdoor saunas or major indoor installs

What to tell them:

• Type of sauna (electric or infrared)

• Indoor or outdoor location

• That it was installed to code with permits

This protects you and avoids claim disputes later.

How to Protect Your Insurance Coverage (Checklist)

Before installation:

• Confirm whether permits are required

• Choose a listed, residential-rated sauna

• Follow manufacturer instructions exactly

• Size the heater correctly

After installation:

• Keep permit records

• Keep inspection sign-offs

• Document the sauna with photos

• Notify your insurer if required

Common Myths About Saunas & Insurance

Myth: Installing a sauna automatically voids insurance
Reality: It does not

Myth: Insurance companies hate saunas
Reality: They care about code compliance, not saunas

Myth: Infrared saunas don’t need to follow rules
Reality: They still must be installed safely

Final Answer: Can a Sauna Void Home Insurance?

Only if it’s installed improperly or illegally.

A properly installed sauna:

• Does not void insurance

• Is commonly accepted by insurers

• Is treated like other home upgrades

Problems arise only when:

• Permits are skipped

• Electrical work is unsafe

• Manufacturer instructions are ignored

• High-risk installations are hidden

If you plan and install correctly, a sauna is a safe, insurable addition to your home.

If you need help choosing a sauna that fits your home, electrical capacity, and long-term safety goals, Haven of Heat is here to help.