5+ In-Ground Hot Tubs That Will Make You Feel Like a VIP

In-ground hot tubs provide luxury, relaxation, and customization options, with brands like Bullfrog, Cal Spas, Dimension One, Jacuzzi, and Sundance offering various models to suit different needs and preferences.

in the ground hot tub

In-ground hot tubs have become an increasingly popular luxury item, and many people choose to include one in their home for stress relief, self-care, relaxation, body and mind therapy, and as a way to entertain guests.

Homeowners who opted for in-ground hot tubs are usually those who already have a pool in their homes. An in-ground hot tub doesn’t have to be attached to a pool, since it independently serves its purpose. Many American homeowners today have already installed spacious in-ground hot tubs without the need for a pool.

Unlike portable ones, in-ground hot tubs come in various shapes. There are commonly round, square, and rectangular shapes. There are also beautiful hexagonal, octagonal, twin circles, and kidney-shaped designs.

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Best Options for Luxurious In-Ground Hot Tubs

There are many luxurious in-ground hot tubs available in the market, so we list some common brands and the models they are known for.

Bullfrog Spas

Bullfrog’s A-series and R-series hot tubs are designed for in-ground installation and feature customizable jet systems and energy-efficient designs. Bullfrog Spas is known for its patented JetPak Therapy System.

JetPaks are a type of jet system designed to be modular and interchangeable, allowing you to customize the jet configuration in your spa to your specific needs and preferences.

It comes in different designs and with varying amounts of jets, each targeting therapeutic needs like hydrotherapy and relaxation.

Cal Spas

Cal Spas offers a variety of in-ground hot tubs designed for luxury and relaxation. Their in-ground hot tubs come with jet systems and other customizable options, including different sizes, styles, and features.

Cal Spas is known for its high-end features, such as LED lighting, waterfalls, and built-in sound systems.

Some of their most popular models include the Cal Spa Inground Spa, Cal Spa Infinity Edge Spa, and Cal Spa Swim Spa.

Dimension One Spas

Dimension One’s in the ground hot tubs feature advanced jet technology and are available in a range of sizes and styles.

Dimension One is known for its devoted use of hydromassage technology and advanced technology such as ozone water purification.

Some of their popular models include the Dimension One Tri-X, Dimension One Aurora, and Dimension One Amore Bay.


Jacuzzi is a well-known brand in the hot tub industry. They are so well known that most people in Asia, especially in the Philippines, consider any jet-system tub attached to the pool as a Jacuzzi.

Jacuzzi’s in-ground hot tubs feature advanced jet systems and a variety of seating options. They are known for offering “budget-fit luxury”.

Their models are designed to suit different needs and budgets and customized to fit the homeowner’s backyard. 

Sundance Spas

Sundance offers a range of in-ground hot tubs designed for energy efficiency and feature customizable jet systems and lighting options.

Sundance may not be known for any distinct features, but it can be an excellent alternative for others mentioned above.

They offer the same features that other spas use, such as advanced water filtration, energy-efficient insulation, a micro-clean ultrafiltration system, and a customizable jet system.

Pros and Cons of In-Ground Hot Tubs

If you have always dreamed of having an in-ground hot tub, you’ve come to the right place. Before selecting one, it’s best to consider the pros and cons of in-ground hot tubs.


  • Can be customized to match the surrounding landscape, making them blend in and appear more natural.
  • Have more advanced features and design options, such as built-in lighting, a sound system, and automatic covers.
  • Have better insulation and heat retention.
  • Adds real estate value to your property.


  • More expensive in overall costs, especially in installation and maintenance.
  • Cannot be moved to another location.
  • The installation process can take longer than above-ground hot tubs
  • Riskier in terms of safety than above-ground hot tubs, so they require permits, zoning approval, and inspections before installation.

Frequently Asked Questions

Before deciding to install one, take a look at some of the most frequently asked questions about in the ground hot tubs.

How much does it cost to install an in-ground hot tub?

The cost to install an in-ground hot tub can vary depending on several factors. The location, size, and features of the hot tub, and the cost of labor in your area all contribute to what you’ll pay at the end of the installation. 

On average, you can expect to pay anywhere from $15,000 to $25,000 or more for an in-ground hot tub installation, including both the cost of the hot tub itself and the cost of labor and materials.

How long does it take to install an in-ground hot tub?

Typically, in-ground hot tub installation can take up to 2-4 weeks. If you install a hot tub that is larger than average or has top-of-the-line features, the installation could take ten to twelve weeks.

What other things do I need to consider when opting for an in-ground hot tub?

Aside from the cost of installation, some things to consider before installing an in-ground hot tub are the ongoing maintenance and operating costs and the space required for the hot tub. It is also important to research the material and features of the hot tub, then check if it would comply with local regulations and codes. 

You can contact your local municipality to learn about the specific codes in your area. Various states and countries follow different local regulations and codes, so it’s good to consult with your local manufacturer before selecting the type of hot tub you want.

Consider the safety measures you will take to have a positive experience in your hot tub. You may want to build a fence around the tub to prevent young children from falling in while unattended (there’s no zero entry option). 

A cover may also be necessary to keep pests and debris from entering the water. Depending on your state and policy, you may have to pay an increased premium on your home insurance to account for your new hot tub. 

What is the best in-ground hot tub for me?

Ultimately, deciding which in-ground hot tub is best for you will depend on your preferences and priorities. It is a good idea to weigh the pros and cons and consider how the hot tub will fit into your lifestyle before choosing which one to install. 

More FAQs

Can I put a hot tub in the ground?

You can install a portable hot tub in the ground, allowing you to enjoy the relaxation and comfort of a spa while enhancing your backyard landscape. This way, the hot tub becomes a place to enjoy your surrounding views rather than the main focal point.

How do I keep my in ground hot tub hot?

To keep your in-ground hot tub hot, you should follow these steps: Utilize your cover whenever your hot tub is not being used. Consider getting a new cover if your current one is old or worn out. Replace your filters regularly to ensure proper functioning. Take good care of your hot tub’s equipment by performing regular maintenance. Evaluate your landscaping to ensure it is not causing excessive heat loss. Additionally, you can lower the water temperature to help maintain heat.

How deep is an in ground hot tub?

The depth of an in-ground hot tub varies depending on its size. Typically, a standard-sized hot tub has a clearance of approximately 5 inches from the water surface to the top of the shell lip. To determine the depth, you can use a simple equation. For example, a 38-inch tub will have a depth of approximately 33 inches, while a 42-inch tub will have a depth of around 37.5 inches.

Can you sink a swim spa in the ground?

The question is: Can a swim spa be sunk in the ground?Rephrased answer: Yes, it is possible to sink a swim spa in the ground. However, this would involve excavation and construction work, as well as careful consideration for future electrical, plumbing, and maintenance access.

Can you put an inflatable hot tub in the ground?

The question is: Can an inflatable hot tub be placed in the ground?Rephrased answer: An inflatable hot tub should be positioned on a flat surface, preferably one made of gravel, for optimal results. If uncertain, placing it on grass is also an option. However, using artificial grass or setting the inflatable hot tub on a patio or deck may be preferable.

Do you need a ground fault for a hot tub?

You need a ground fault for a hot tub. Rewritten answer: Yes, a GFCI (Ground Fault Circuit Interrupter) breaker is required for a hot tub as it helps prevent electrical issues such as dangerous short circuits and hot outlets.

What do you put under a hot tub on the ground?

The ground under a hot tub can be supported by various options, including concrete slabs, crushed gravel, your existing patio, paver stones, a deck, or specialized spa pads.

Can hot tub be used as pool?

Hot tubs can be used as pools by simply not heating the water. As long as the water is treated and circulated like it would be in a hot tub, it is safe to use as a pool. Some people may choose to buy adapters to cool the water, but it is not necessary.

What is an in ground hot tub called?

An in-ground hot tub is commonly referred to as a spa, which should not be mistaken for a day spa. Similar to an in-ground pool, an in-ground spa is a water feature that is built into the ground.

How are in-ground hot tubs heated?

In-ground hot tubs are typically heated electrically nowadays, although gas heat remains an alternative for certain models.

How deep are in-ground hot tubs?

In-ground hot tubs typically have a depth ranging from 31 inches to approximately 37 inches, with a maximum limit. It is advised not to exceed this depth due to safety concerns.

Do in-ground hot tubs have jets?

In-ground hot tubs are equipped with basic, standard jets that are usually of a single size. The positioning of the jets can be customized, although the range of massage options they offer is not as diverse as those found in portable spas. The maintenance and upkeep of water in portable hot tubs have been simplified due to advancements in filtration technology.

What is a geothermal hot tub?

A geothermal hot tub is a pool or spa that utilizes a geothermal pool heat-pump system, which is essentially a refrigeration system equipped with specialized components to efficiently transfer heat from a water source (such as a well or lake) or a closed-loop plumbing system buried underground, to the pool or spa.

What are in ground hot tubs made of?

In-ground hot tubs are typically made from a variety of materials such as stone, concrete, tiles, acrylic, gunite, and other materials. These custom-built spas offer endless design possibilities and can be tailored to specific sizes, shapes, and seating arrangements.

What’s the difference between Jacuzzi and hot tub?

The difference between Jacuzzi and hot tub is that Jacuzzi is a specific brand of hot tubs and spa products, while a hot tub is a generic term used to describe a tub filled with hot water for relaxation purposes.

How many jets does an inground spa have?

An inground spa typically has between 7 and 12 water jets placed at mid back height throughout the circular shape with level bench seating all around the interior.

Are in ground hot tubs hard to maintain?

In ground hot tubs can be challenging to maintain due to the need for consistent water cleanliness and maintenance throughout the year. This is crucial to prevent any potential damage to the water pump. On the other hand, above ground hot tubs provide more convenient access to the mechanics and generally require less overall maintenance.

How long does it take an in-ground hot tub to heat up?

An in-ground hot tub typically takes three to eight hours to heat up to the desired temperature range of 100 to 102 degrees Fahrenheit, with water heating up by five to ten degrees Fahrenheit per hour.

What is the life expectancy of a hot tub?

The life expectancy of a hot tub depends on the quality of the spa and the level of maintenance it receives. Generally, hot tubs can last between 5 to 20 years or even longer. However, if a hot tub is made with cheaper materials and not properly cared for, its lifespan may be limited to around 5 years or less.

Why is being in a hot tub for too long bad?

Being in a hot tub for an extended period of time can have negative effects on your health. This includes experiencing dizziness, feeling lightheaded, becoming overheated, and becoming dehydrated, especially if the water temperature is set high. Additionally, it can lead to burns, a decrease in blood pressure, an increase in heart rate, and feelings of nausea and vomiting.

What is the easiest type of hot tub to maintain?

The easiest type of hot tub to maintain is one that utilizes salt systems. These systems use electrolysis to generate chlorine from salt, eliminating the need for manual chlorine addition. This not only saves time but also reduces expenses.

Is it cheaper to keep a hot tub running?

It is not cheaper to keep a hot tub running. Even if you only use your hot tub once a week, it is still recommended to leave it constantly running. For vacations of up to two weeks, you may choose to lower your water temperature to as low as 30 degrees Celsius, but otherwise, it is advised to leave your spa operating as usual.

Is a sunken hot tub a good idea?

Restated question: Is a sunken hot tub a good idea?Rephrased answer: A sunken hot tub can be a practical choice as it occupies less space by being recessed into the deck’s flooring. Additionally, minimal reinforcement is required, making it suitable for older wooden decks.

Can you use an inground hot tub in the winter?

An inground hot tub can be used in the winter. It is common for people to maintain temperatures above 90 degrees when using their spa during this season. However, if you intend to lower the spa temperature temporarily, it is advisable not to go below 65 degrees. It is crucial to have the temperature warm enough to be able to react in case of a real emergency, as having an emergency plan alone is not sufficient.

Is an inground spa worth it?

An in-ground spa can be a worthwhile investment for homeowners looking to enhance the value of their property and create a backyard that seamlessly integrates with their living space. Unlike above ground spas, which are portable and not considered permanent fixtures, in-ground spas are both aesthetically pleasing and practical. Therefore, they have the potential to increase the overall value of a home.

How deep should an inground hot tub be?

The depth of an inground hot tub should be determined based on personal preference and comfort. On average, inground hot tubs have a height range of 34-42 inches, with an average height of 36 inches. The water depth inside the hot tub is typically about 5 inches less than the height of the walls. Therefore, a hot tub with a height of 36 inches will have a water depth of approximately 31 inches.

How do inground hot tubs work?

In-ground hot tubs operate by following a similar principle to in-ground swimming pools. The water is maintained in the same manner, ensuring a safe and clean environment by balancing pH levels and using sanitizers. However, unlike chlorine, bromine is often suggested by hot tub manufacturers for sanitization purposes due to its milder nature and longer-lasting effects.

Are hot tubs less sanitary than pools?

Hot tubs are not less sanitary than pools. In fact, there is a common misconception that hot tubs, especially public ones, are unsanitary compared to pools. However, this is a myth. The truth is that hot tubs have filtration systems that are similar in size to those of pools, even though they have to cycle through much less water. When hot tubs are properly sanitized, they are actually very clean.

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