A hot tub can transform your backyard or indoor space into a personal oasis. But before you can relax and unwind, proper planning for installation is essential to ensure your spa is safe, functional, and ready to provide years of enjoyment.
Whether you’re just starting your search for the perfect hot tub or have already made your purchase, preparing for installation is a critical step. Afterall, you can’t just place your new hot tub on a swath of grass in your backyard.
From choosing a foundation for your hot tub to delivery day, we’ll walk you through everything you need to know.
Planning for your hot tub installation
Installing a hot tub doesn’t have to be complicated, but you do need to plan ahead. You’ll need to place the spa on a solid, level foundation that can support the combined weight of the hot tub, water, and people using it.
Once you prepare the site and complete the electrical work, the installation itself moves quickly. In many cases, the crew can deliver and install your hot tub in just a few hours.
Do you need a permit for a hot tub?
In many areas, a permit is not required to install a hot tub. However, it’s still important to check with your local building department to be sure. Some municipalities require permits for the electrical connection, while others have regulations related to setbacks, safety barriers, or fencing. These rules can influence where and how your hot tub is installed.
In most cases, the bigger factor is your homeowner’s association. HOAs often have their own guidelines about where a hot tub can be placed, what it looks like, or how it affects neighboring properties.
Most Master Spas hot tubs are 38 inches deep, which may trigger additional requirements in some areas. Before installation, take time to confirm local codes and HOA policies. Your local hot tub dealer can also help you understand what’s needed in your area and guide you through the process.
Can you put a hot tub on grass?
While placing a hot tub directly on grass might seem convenient, it’s not a safe or long-term solution. When filled, a hot tub can weigh more than 5,000 pounds. Grass and bare soil simply can’t support that kind of load. Over time, the ground can shift or settle, leading to an uneven surface that can damage your spa or create safety issues.
Instead, choose a stable surface such as a concrete slab, a reinforced deck, or a properly prepared gravel base. Some homeowners choose a prefabricated spa pad, which provides a solid, level foundation for the hot tub. If you’re planning an in-ground installation, you’ll typically need to pour a concrete vault to support the spa and manage drainage.
Can you put a hot tub inside?
Yes, you can install a hot tub inside. Whether it’s in a sunroom, basement, or dedicated spa room, an indoor hot tub can make it even easier to unwind and relax.
However, there are a few extra considerations to keep in mind. Indoor spaces need proper ventilation to manage humidity and prevent mold or mildew. An exhaust fan or ventilation system is often recommended. The flooring should be water-resistant and slip-resistant, and a floor drain is helpful in case of spills or draining. You’ll also want to make sure there’s enough space to get the hot tub inside, which could involve temporarily removing doors or railings.
Can you put a hot tub on a deck?
A hot tub can absolutely be installed on a deck. The structure just needs to be strong enough to handle the weight. Before placing a hot tub on a deck, it’s important to have a licensed contractor or structural engineer evaluate the space. ou may need to reinforce your deck, depending on the size and weight of your hot tub. Also, consider how you’ll get the hot tub onto the deck. In some cases, delivery crews use a crane or other equipment to lift it into position.
If you’re dreaming of a deck installation, make sure your space is ready before your delivery date so you can enjoy your hot tub without delays.
What should you expect and delivery day?
The delivery team typically uses a spa dolly or forklift to move your hot tub, depending on your yard’s layout and how easily they can access the installation site. If the path is too tight or the setup is complex, they may need to use a crane.
Before delivery day, walk the route from the driveway or street to the spot where you’ll place the hot tub. Clear any obstacles like patio furniture, garden tools, or low-hanging branches. Make sure there’s enough space for the team to safely move the spa into position. Most hot tubs require at least 36 inches of width and 8 feet of vertical clearance, but confirm the exact requirements for your model to be safe.
What is a spa pad, and should you use one?
A spa pad uses interlocking plastic tiles to create a modular base system that replaces a concrete slab. Many homeowners choose this option because it offers a quicker, more affordable way to set up a hot tub without the hassle of pouring concrete.
To install a spa pad, start by selecting a flat, level area and removing any grass or sod. Dig down a few inches, then spread and compact a layer of gravel or sand to form a stable base. Once the ground is level, snap the spa pad pieces together and place them in position. Before setting your hot tub, double-check that the surface is perfectly level to ensure proper support and operation.
Ready to bring home your hot tub?
Installing a hot tub doesn’t have to feel overwhelming — and with the right planning, it can be a smooth and exciting part of the process. Whether you’re figuring out the foundation, prepping for delivery, or checking local requirements, your Master Spas retailer is here to help.
Still exploring your options? Download our Backyard Planning Guide to get expert tips and inspiration for creating a space you’ll love.
Or connect with your local Master Spas dealer to find the model that fits your home and lifestyle.