Can You Put A Swim Spa In A Garage?

Imagine enjoying a refreshing swim or a relaxing soak in the comfort of your own home, without the need for a full-sized pool. That’s the appeal of swim spas – they offer the benefits of both a swimming pool and a hot tub in one compact package. It’s no wonder that swim spas have been gaining popularity in recent years.

As more and more people discover the joys of owning a swim spa, they start to explore the possibilities of where to install them. While many opt for the traditional backyard setup, others are looking for more convenient options. One question that often arises is, “Can I put a swim spa in my garage?”

The idea of installing a swim spa in a garage is certainly intriguing. It would provide a year-round, weather-protected space for swimming and relaxation. Plus, it could free up valuable backyard space for other activities. But before you start making plans to transform your garage into a spa oasis, there are some important factors to consider.

In this article, we’ll dive into the various aspects of installing a swim spa in a garage. We’ll explore the space requirements, structural considerations, electrical and plumbing needs, and more. By the end, you’ll have a better understanding of whether a garage swim spa is a feasible option for you.

Considerations for Installing a Swim Spa in a Garage

Before you start planning your garage swim spa installation, there are several key factors to consider. Let’s take a closer look at each of these aspects to help you determine if your garage is a suitable location for a swim spa.

Space Requirements

First and foremost, you need to ensure that your garage has enough space to accommodate a swim spa. Swim spas come in various sizes, but they typically range from 12 to 19 feet in length and 7 to 8 feet in width. In addition to the actual dimensions of the spa, you’ll need to allow for adequate clearance around the unit for maintenance and access. As a general rule, aim for at least 3 feet of clearance on all sides.

Take a good look at your garage’s size and layout. Will it comfortably fit a swim spa while still leaving room for other essential functions, such as parking your car or storing your tools?

Weight and Structural Support

Another crucial consideration is the weight of the swim spa. When filled with water, a swim spa can weigh several tons. Your garage floor must be able to support this immense weight without cracking or collapsing.

If you have a standard concrete garage floor, it may be suitable for a swim spa installation. However, it’s always wise to have a professional assess the structural integrity of your garage floor to ensure it can handle the load. In some cases, reinforcement may be necessary to distribute the weight evenly and prevent damage.

Electrical Requirements

Swim spas require a dedicated electrical supply to power the pumps, heaters, and other components. The specific electrical requirements will depend on the model and size of your swim spa, but most units require a 220-volt, 50-60 amp circuit.

You’ll need to have a certified electrician assess your garage’s electrical setup to determine if it can accommodate the swim spa’s power needs. In many cases, you’ll need to install a new electrical outlet and wiring specifically for the spa. Safety is paramount, so make sure to follow all local building codes and regulations, including the use of GFCI (Ground Fault Circuit Interrupter) protection.

Plumbing and Water Supply

Your swim spa will need a reliable water source for filling and a proper drainage system for emptying. If your garage already has a water supply and a floor drain, that’s a great start. If not, you’ll need to consider the feasibility of running water lines and installing a drain.

Keep in mind that you’ll need to fill and drain your swim spa periodically for maintenance and cleaning. Make sure the water source is easily accessible and that the drainage system can handle the large volume of water.

Ventilation and Humidity Control

Proper ventilation is essential when installing a swim spa in a garage. The warm water in the spa will naturally increase the humidity levels in the enclosed space, which can lead to mold growth and moisture damage if left unchecked.

To combat this, you’ll need to ensure that your garage has adequate ventilation. This may involve installing exhaust fans, dehumidifiers, or even an HVAC system to regulate the air quality and moisture levels.

Insulation and Temperature Regulation

Finally, you’ll want to consider the insulation and temperature regulation of your garage. Swim spas are designed to maintain a comfortable water temperature, typically between 80°F and 104°F. To help maintain this temperature efficiently, it’s ideal to have a well-insulated garage.

If your garage lacks proper insulation, you may need to invest in upgrading the walls, ceiling, and doors to minimize heat loss. This will not only help keep your swim spa at the desired temperature but also reduce your energy costs in the long run.

Preparing Your Garage for a Swim Spa

So, you’ve weighed the considerations and decided that installing a swim spa in your garage is the way to go. Congratulations! Now it’s time to get your garage ready for its new role as a spa oasis. Let’s walk through the steps you’ll need to take to prepare your space.

Cleaning and Decluttering

First things first – it’s time to give your garage a thorough cleaning and decluttering. Remove any unnecessary items, organize your tools and equipment, and sweep or vacuum the floors. You want to create a clean, open space that’s ready for the swim spa installation.

If your garage has been doubling as a storage unit, now’s the perfect opportunity to purge any unwanted items or find alternative storage solutions. The more space you can free up, the better.

Floor Preparation

Next, focus on preparing the garage floor. The surface should be level, stable, and able to support the weight of the filled swim spa. If your garage floor is uneven or has cracks, you may need to repair or level it before proceeding.

In some cases, reinforcing the floor may be necessary to ensure it can handle the load. This could involve adding a concrete overlay, installing steel reinforcement, or using a spa floor leveling system. Consult with a professional contractor to determine the best approach for your specific situation.

Electrical Upgrades

Before your swim spa can be installed, you’ll need to make sure your garage has the necessary electrical upgrades. This typically involves installing a dedicated 220-volt, 50-60 amp circuit for the spa.

Hire a licensed electrician to handle this task. They’ll assess your current electrical setup, make any necessary modifications, and ensure that everything is up to code. Don’t attempt to do this yourself unless you have the proper expertise and certifications.

Plumbing Modifications

If your garage doesn’t already have a water supply and drainage system, you’ll need to make some plumbing modifications. This may involve running water lines from your home’s main water supply to the garage and installing a floor drain or sump pump for emptying the spa.

Again, it’s best to leave this task to the professionals. A licensed plumber can ensure that the water supply and drainage are properly installed and meet all local building codes.

Ventilation Improvements

To prevent humidity buildup and maintain good air quality in your garage, you’ll need to address the ventilation. Depending on your garage’s existing ventilation system, this may involve installing exhaust fans, dehumidifiers, or an HVAC system.

The goal is to create a well-ventilated space that can handle the increased moisture levels from the swim spa. Proper ventilation will help prevent mold growth, protect your garage’s structure, and ensure a comfortable environment for your spa sessions.

By tackling these preparation steps, you’ll create a solid foundation for your garage swim spa installation. It may seem like a lot of work upfront, but trust us – the end result will be well worth the effort. Soon enough, you’ll be enjoying a refreshing swim or a relaxing soak in the comfort of your own garage spa retreat.

Alternatives to Installing a Swim Spa in a Garage

While installing a swim spa in your garage can be a great option, it’s not the only choice available. If you’ve considered the factors we’ve discussed and decided that a garage installation isn’t quite right for you, don’t worry – there are other possibilities to explore. Let’s take a look at a couple of alternative options.

Outdoor Installation

One popular choice for swim spa placement is an outdoor installation. This could be in your backyard, on a patio, or even on a dedicated deck. Outdoor installations offer several benefits:

  1. Fresh air and natural surroundings: Imagine enjoying your swim spa while taking in the beauty of your backyard or garden. An outdoor installation allows you to connect with nature and create a relaxing atmosphere.
  2. More space and flexibility: By placing your swim spa outdoors, you can free up valuable indoor space and have more flexibility in terms of size and placement. You’re not limited by the dimensions of your garage or other indoor areas.

Of course, there are some considerations to keep in mind with an outdoor installation. You’ll need to ensure that the area is level, stable, and able to support the weight of the filled spa. You’ll also want to think about privacy, sun exposure, and accessibility to electrical and water sources.

Dedicated Indoor Space

Another option is to create a dedicated indoor space for your swim spa. This could be a spare room, a sunroom, or even a custom-built addition to your home. The advantages of an indoor swim spa area include:

  1. Year-round usability: With an indoor installation, you can enjoy your swim spa regardless of the weather outside. No need to worry about rain, snow, or extreme temperatures putting a damper on your swim sessions.
  2. Increased privacy and convenience: An indoor swim spa area offers the ultimate in privacy and convenience. You can easily access your spa without having to step outside, and you don’t have to worry about nosy neighbors or passersby.

Creating a dedicated indoor space for your swim spa allows you to customize the area to your liking. You can control the lighting, ventilation, and décor to create the perfect ambiance for your spa experience. Plus, you can incorporate additional features like a changing area, shower, or even a small gym setup.

When considering an indoor swim spa installation, it’s important to work with professionals who can ensure that the space is properly designed, insulated, and ventilated. You’ll also need to consider the same factors we discussed for garage installations, such as structural support, electrical requirements, and plumbing needs.

Ultimately, the decision between a garage installation, an outdoor setup, or a dedicated indoor space will depend on your specific needs, preferences, and home layout. Take the time to weigh the pros and cons of each option and consider factors like budget, space availability, and intended use.

No matter which route you choose, one thing is certain – adding a swim spa to your home is an investment in your health, relaxation, and overall well-being. By exploring the different installation options available, you can find the perfect setup that allows you to make the most of your swim spa experience.

Maintenance and Safety Tips for a Garage Swim Spa

Congratulations on your new garage swim spa installation! Now that you’ve created your own private oasis, it’s important to keep it in top shape and ensure a safe, enjoyable experience every time you use it. Here are some essential maintenance and safety tips to keep in mind.

Regular Cleaning and Water Treatment

To keep your swim spa water clean, clear, and inviting, regular maintenance is key. This involves a combination of skimming, brushing, and vacuuming the spa’s surface to remove debris, as well as maintaining proper water chemistry through balancing and sanitizing.

Aim to test your water chemistry at least once a week, adjusting the levels of pH, alkalinity, and sanitizer as needed. Regularly replace your spa’s filters to ensure optimal filtration and water clarity. Don’t forget to also clean the spa cover and the surrounding area to prevent dirt and grime from finding their way into the water.

Monitoring Humidity Levels

As we mentioned earlier, humidity control is crucial when it comes to garage swim spa installations. High humidity levels can lead to mold growth, moisture damage, and an uncomfortable spa environment.

Make a habit of regularly monitoring the humidity levels in your garage using a hygrometer. If you notice the humidity consistently rising above 60%, it’s time to take action. Run your exhaust fans, dehumidifier, or HVAC system to remove excess moisture from the air. Proper ventilation and air circulation are your best defenses against humidity-related issues.

Electrical Safety Precautions

Water and electricity can be a dangerous combination, so it’s essential to prioritize electrical safety around your swim spa. Always follow these precautions:

  • Keep all electrical devices, cords, and outlets away from the spa area to prevent accidental contact with water.
  • Ensure that your spa is connected to a dedicated GFCI-protected circuit to prevent electrical shocks.
  • Never attempt to repair or modify the spa’s electrical components yourself; always hire a licensed professional.
  • Avoid using the spa during severe weather conditions, such as thunderstorms, to minimize the risk of electrical hazards.

Proper Ventilation Practices

In addition to humidity control, proper ventilation is important for maintaining good air quality in your garage spa area. Run your exhaust fans or HVAC system regularly to circulate fresh air and remove any chemical odors or fumes.

If you notice any unusual smells or signs of poor air quality, such as stuffiness or respiratory irritation, it’s time to reassess your ventilation setup. You may need to increase air circulation, install additional fans, or consult with an HVAC professional to optimize your garage’s ventilation system.

Preventing Damage to the Garage Structure

To protect your garage’s structure and prolong the life of your swim spa installation, keep an eye out for any signs of damage or wear and tear. Regularly inspect the spa’s surrounding area for any cracks, leaks, or moisture buildup.

If you notice any issues, address them promptly to prevent further damage. This may involve sealing cracks in the floor, repairing leaks, or reinforcing the spa’s support structure. By staying proactive and addressing any problems early on, you can avoid costly repairs down the line and ensure the longevity of your garage swim spa setup.

Remember, a well-maintained swim spa not only looks and feels great but also provides a safer and more enjoyable experience for you and your loved ones. By following these maintenance and safety tips, you can keep your garage spa in pristine condition and enjoy all the benefits it has to offer for years to come.

Frequently Asked Questions (FAQs)

We’ve covered a lot of ground in this article, but you may still have some lingering questions about installing a swim spa in your garage. Let’s address some of the most common queries to help you make an informed decision.

Can I install a swim spa in my garage myself, or do I need professional help?

While it might be tempting to tackle the installation yourself, it’s highly recommended to seek professional assistance. Installing a swim spa involves complex electrical, plumbing, and structural considerations that require expert knowledge and skills. Attempting a DIY installation could lead to safety hazards, property damage, or costly mistakes.

Consider hiring a qualified swim spa installer who has experience with garage installations. They can ensure that your spa is set up correctly, safely, and in compliance with all local building codes and regulations.

How much does it cost to install a swim spa in a garage?

The cost of installing a swim spa in your garage can vary greatly depending on several factors, such as the size of the spa, the complexity of the installation, and any necessary upgrades or modifications to your garage.

On average, you can expect to spend anywhere from $15,000 to $30,000 or more for a complete garage swim spa installation. This includes the cost of the spa itself, as well as any electrical, plumbing, and structural work required. Keep in mind that this is a rough estimate, and your actual costs may be higher or lower depending on your specific circumstances.

Do I need a permit to install a swim spa in my garage?

In most cases, yes. Installing a swim spa in your garage is typically considered a home improvement project and may require building permits from your local municipality. The specific requirements can vary by location, so it’s essential to check with your local building department to determine what permits you need and how to obtain them.

Your swim spa installer should be familiar with the permitting process and can often assist you in navigating the necessary paperwork and inspections.

How do I control the humidity and prevent mold growth in my garage?

Controlling humidity and preventing mold growth is crucial when installing a swim spa in your garage. Here are a few key strategies:

  • Install proper ventilation, such as exhaust fans or an HVAC system, to remove excess moisture from the air.
  • Use a dehumidifier to maintain optimal humidity levels, typically between 30-50%.
  • Ensure adequate air circulation by running fans and keeping the garage door or windows open when possible.
  • Regularly inspect the garage for any signs of mold or moisture damage and address issues promptly.
  • Use mold-resistant materials, such as moisture-resistant drywall or mold-inhibiting paint, in the garage.

Can I use my garage for other purposes if I install a swim spa?

The answer to this question depends on the size of your garage and the layout of your swim spa installation. In some cases, you may be able to maintain a portion of your garage for storage or even park your car, provided there is enough space and the spa is properly secured and protected.

However, it’s important to prioritize the safety and functionality of your swim spa installation. You’ll need to ensure that there is adequate clearance around the spa for access and maintenance and that any other garage activities don’t interfere with the spa’s operation or create hazards.

How often should I clean and maintain my garage swim spa?

Regular cleaning and maintenance are essential for keeping your garage swim spa in top condition. Here’s a general maintenance schedule to follow:

  • Daily: Check and adjust water chemistry levels, skim the surface for debris, and wipe down the waterline.
  • Weekly: Test and balance water chemistry, clean the spa filter, and vacuum the spa floor.
  • Monthly: Deep clean the spa shell, inspect equipment for wear and tear, and check the garage for any signs of moisture damage or mold growth.
  • Quarterly: Drain and refill the spa, clean the cover, and service the equipment as needed.

By sticking to a consistent maintenance routine, you can ensure that your garage swim spa remains clean, safe, and enjoyable for years to come.

What are the energy costs associated with running a swim spa in a garage?

The energy costs of running a swim spa in your garage will depend on factors such as the size of the spa, the frequency of use, and your local energy rates. On average, you can expect to spend between $50 to $150 per month on electricity to operate your garage swim spa.

To minimize energy costs, consider the following tips:

  • Invest in a well-insulated spa cover to retain heat when the spa is not in use.
  • Set the spa’s temperature to a lower setting when not in use, and only heat it up to your desired temperature before use.
  • Use a programmable timer to automatically control the spa’s heating and filtration cycles.
  • Upgrade to energy-efficient equipment, such as a variable-speed pump or a heat pump, to reduce electricity consumption.

Keep in mind that while there are ongoing energy costs associated with running a garage swim spa, the benefits of having your own private oasis for exercise, relaxation, and hydrotherapy can be well worth the investment.


We’ve explored the ins and outs of installing a swim spa in your garage, and by now, you should have a clearer picture of what’s involved in this exciting home improvement project. Let’s recap the main points and help you make an informed decision.

Throughout this article, we’ve discussed the various factors that come into play when installing a swim spa in your garage. From space requirements and structural considerations to electrical and plumbing needs, it’s clear that a garage swim spa installation is a complex undertaking that requires careful planning and professional expertise.

However, with the right preparation and guidance, a garage swim spa can be a feasible and rewarding addition to your home. By working with qualified professionals and addressing all the necessary considerations, you can transform your garage into a private oasis for exercise, relaxation, and hydrotherapy.

One of the key takeaways from this article is the importance of careful planning and preparation when installing a swim spa in your garage. From assessing your garage’s suitability and obtaining necessary permits to preparing the space and making essential upgrades, each step of the process requires thoughtful consideration and attention to detail.

By taking the time to thoroughly plan your garage swim spa installation and working with experienced professionals, you can ensure a smooth, safe, and successful project that meets all your needs and exceeds your expectations.

As with any major home improvement project, installing a swim spa in your garage comes with its own set of pros and cons. On the one hand, a garage swim spa offers the convenience and privacy of an indoor installation, along with the potential for year-round use and a customizable space.

On the other hand, a garage installation also involves significant costs, complex logistics, and ongoing maintenance responsibilities. It’s essential to carefully weigh these factors against your personal needs, preferences, and budget to determine if a garage swim spa is the right choice for you.

Installing a swim spa in your garage can be a life-changing decision, offering countless benefits for your health, well-being, and quality of life. By providing a private space for exercise, relaxation, and hydrotherapy, a garage swim spa can become a cherished part of your daily routine and a valuable addition to your home.

If you’re considering a garage swim spa installation, we encourage you to use the information in this article as a starting point for your research and planning. Consult with qualified professionals, explore your options, and take the time to make an informed decision that aligns with your needs, goals, and resources.

With the right approach and a little bit of imagination, you can transform your garage into a stunning swim spa oasis that provides years of enjoyment, relaxation, and wellness benefits. So dive in, start planning, and get ready to make a splash in your very own garage swim spa retreat!