Can I Put a Hot Tub in the Garage?

The picture in most peoples’ minds when thinking about a hot tub is one of sitting outdoors on a wooden deck while being immersed in the bubbling water. But, although maybe not as common, hot tubs can also be installed indoors. The advantages of an indoor hot tub are many. You won’t have to deal with inclement weather, the water won’t be constantly fouled with leaves and other airborne debris and you’ll be guaranteed a private soaking session. But those who don’t have enough room in their house may be asking, “Can I put a hot tub in the garage?” With a bit of planning and preparation, installing a hot tub in a garage is absolutely possible. This article will provide some tips.


Garages are often prone to high levels of moisture and humidity even without a hot tub. But because their warm waters are often churning with bubbles, an indoor hot tub will raise moisture and humidity levels even more. Having a proper ventilation system will be absolutely necessary. An exhaust fan that can rapidly turn over the air volume inside the garage will need to be installed. You might also want to consider pairing it with an overhead ceiling fan to help with air circulation. A proper ventilation system will reduce the chances of mold and mildew growth while protecting the structure of the garage as well.


A surprising amount of water escapes from the hot tub every time somebody gets out. This water will invariably end up on the floor. Rather than just letting the water pool, you’ll want a drainage system that allows the water to escape. A floor drain is essential. You’ll also want to make sure the floor is properly graded to prevent stagnant pools of water. Hot tubs also need to be completely drained and cleaned on a regular basis, so having easy access to drainage will make this job much easier.


While you’re dealing with your drainage system, you might as well take care of your plumbing as well. It takes several hundred gallons of water to fill a hot tub and you probably don’t want to be running a bucket brigade from your house every time you need to top up your tub. Installing a tap in the garage, if one doesn’t already exist, will make cleaning and filling your hot tub much easier. It’s an investment that will pay off handsomely in the long run.


Hot tubs need a stable and level surface for proper installation. With their concrete floors, this makes many garages an ideal location. But you also need to be cognizant of a flooring surface that’s not only waterproof but also slip-resistant. Slipping and falling is the most common accident associated with hot tubs and flooring plays a large role in that statistic. There are many different kinds of concrete sealants that can create a waterproof barrier while also adding some traction to prevent slipping. Otherwise, you might consider the addition of flooring materials such as tile or rubber to surround the hot tub area and provide a more comfortable underfoot feel.


A hot tub cover still plays an important role even for an indoor installation. Replacing the cover whenever the hot tub isn’t being used will cut down on the humidity and moisture in the garage while also reducing the amount of water evaporation. Heat will be retained and your energy bill will be lowered because of it. A hot tub cover will also provide security and safety – especially when it comes to curious young children.

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