How Much Does an Indoor Pool Cost?

• Typical Range: $40,000 to $200,000
• National Average: $95,000

Installing an indoor pool is an excellent option for many homeowners who want to enjoy the therapeutic benefits of swimming year-round. For those who live in colder climates, an indoor heated pool is a great way to exercise and relax without the hassle of closing up the pool after a few short months of warm weather. An indoor house pool can be installed in a basement, screened-in porch, sunroom, or inside a structure that is built specifically for a residential indoor pool. How much does an indoor pool cost? The average cost of indoor pool installation ranges from $40,000 to $200,000, with many homeowners spending approximately $95,000 for a 40-inch deep, 12-foot by 24-foot fiberglass pool with concrete decking inside an existing structure. An indoor above-ground pool that measures 12 feet by 24 feet that’s added to an existing space can cost $10,000 to build, while the price to build an indoor lap pool and a new structure to house it in can run upwards of $350,000.

The minimized maintenance, reduced chemical use, and year-round swimming outweigh the installation costs for many homeowners. Some important factors that influence indoor pool cost are installation method; pool size, type, material, and shape; dehumidification system costs; and permit fees. Local labor costs can vary, but it’s common for an inground indoor pool to cost considerably more in labor than an above-ground indoor pool. This is due to the extra time and effort that is needed to break through a home’s foundation for installation. This guide will examine the factors that affect indoor pool cost, the types of indoor pools, indoor pool designs, the benefits of having an indoor pool, and the important questions to ask a professional before deciding on such a big purchase.

Factors in Calculating Indoor Pool Cost

How much is an indoor pool? That depends on several factors. Indoor pool installation price can vary based on pool size, material, type, and shape; local labor prices; dehumidification system type; filter and pump installation; and permit fees.

Pool Size

The cost to build an indoor pool depends on the size and whether the pool is prefabricated or custom made. For those looking for a tiny, small indoor pool, the smallest option is usually 8 feet by 15 feet, or 120 square feet. Prefabricated indoor pools cost from $69.50 to $295 per square foot, and custom models run from $100.50 to $312.50 per square foot. A 12-foot by 24-foot indoor pool is the most common size, but there are smaller and larger options available. Below are installation price ranges for prefabricated and custom indoor pools based on size.

Pool Material

The pool material influences the overall installation price. The most common materials are vinyl, fiberglass, and concrete. Vinyl is used for custom indoor pools, fiberglass is used for prefabricated options, and concrete can be used for both. Below are price ranges for both prefab and custom indoor pools based on the construction material and not including the cost of separate items, such as a dehumidifier, heater, or enclosure.

• Concrete indoor pool. Precast concrete pools are typically less than 8 feet by 15 feet in size since they need to be shipped and craned into place, while custom sizes are poured on-site. There are various pool shapes and designs available in this material, as well as various finishes, such as paint, aggregate, plaster, or a specialty coating. A rectangular pool shape is popular for precast models, but they can also be made in circles or squares. Homeowners can expect to pay between $20,000 and $50,000 for a prefabricated concrete indoor pool and between $29,000 to $90,000 for a custom option, depending on size and customizations.
• Vinyl indoor pool. Vinyl indoor pools are made on-site and are available in various sizes and shapes, such as round, lagoon, full-L, and rectangular. Vinyl pools need liner replacements approximately every 10 years. Installation prices can range from $35,000 to $65,000 for an indoor vinyl pool.
• Fiberglass indoor pool. Fiberglass indoor pool shells can be installed quickly and are available in many designs and styles. Since this pool material needs to be shipped, there are limited depths and sizes for this type of indoor pool. They are typically no deeper than 6 feet, no longer than 40 feet, and no wider than 16 feet. This prefab option can cost from $45,000 to $85,000 to install.

Pool Type

Based on preference and location, indoor pools can be above-ground or inground. The pricing of indoor pools varies due to installation type and project scope. Inground models require excavation and have the ability to be more customized than an above-ground option. Each type of pool is discussed in a section below.

Pool Shape

While many people envision a rectangular shape for an indoor pool, there are many design types available. Below are some popular indoor pool shapes and the prices for an inground option, including labor.

• Kidney-shaped indoor pools. Kidney-shaped indoor pools are available in various sizes and are an excellent option for homeowners who are looking for a visually appealing shape. This indoor pool shape runs from $20,000 to $35,000 for a prefab model and from $30,000 to $65,000 for a custom pool.
• Rectangular indoor pools. This standard pool shape comes in many sizes and can be installed in numerous different enclosures. These are popular with many homeowners due to their price range of $20,000 to $60,000 for a prefab pool and $60,000 to $70,000 for a custom model.
• Classic indoor pools. The classic pool shape is a rectangle with detailed accent curves. The classic Roman design includes half-circles at each end with rounded corners, while Grecian designs have less-structured angles and curves for a flowing layout. These stylish indoor pools can cost from $25,000 to $45,000 for a prefab option and between $29,000 and $90,000 for a custom classic pool.
• Lagoon indoor pools. For those who want an indoor pool to look like a natural body of water, the lagoon shape is the best option. This design allows for extensive customizations with rocks, waterfalls, and grottos for the area to resemble a tropical oasis. Homeowners can expect to pay between $35,000 and $75,000 for a prefab design and from $70,000 to $100,000 for a custom lagoon pool.

Labor

Larger pools require more labor than smaller pools, and inground pools will take more time to install than above-ground options. Depending on installation type, pool material, and size, the price of labor can fluctuate from location to location. A higher cost of living in densely populated urban areas will result in a more expensive labor rate.

Dehumidification System Type

One essential item that needs to be a part of an indoor pool installation project is a dehumidification system. Homes with indoor pools need a system that draws the moisture out of the air to avoid mold and mildew issues throughout the structure. There are different types of dehumidification systems at various price points. Below are the average prices of the individual systems for a 12-foot by 24-foot pool with an enclosed space that measures 22 feet by 36 feet, or 792 square feet. The whole-home dehumidification system price is based on a 2,500-square- foot home.

• Whole-home dehumidification system. This type of dehumidification system can be installed in the existing HVAC unit to ensure an even decrease in humidity throughout a home. Since these systems are designed with an indoor pool area in mind, they have superior humidity control compared to an average HVAC system or individual dehumidifiers placed throughout a home. An indoor whole-home dehumidification system can cost between $2,400 and $8,000 to install.
• Ventilation-based dehumidification system. A ventilation-based system utilizes the outside air to balance the internal temperature of the swimming area to eliminate excess humidity during the colder months. One downside about this type of system is that during the warm summer months, there is no cooling to the indoor pool area. A cooling coil can be added to the system, but it has limited dehumidification properties. A ventilation-based system costs from $4,000 to $10,000.
• Mechanical refrigeration system. This type of dehumidification system is typically the most popular. These systems work by pulling in the humid warm air, drawing out the moisture, and passing it over cooling coils before the air is released back into the pool area. Depending on the type of unit and the size, a mechanical refrigeration system can set a homeowner back between $4,000 and $20,000.

Filter and Pump Installation

Pool water filters are available in many sizes and shapes, and filters are important to keep the pool clean and working properly. The average filter and pool pump installation cost ranges from $500 to $2,000.

Permits

Indoor pool installations typically require a building permit. Many professional pool installation companies will know the local requirements and will acquire the necessary permits, but it’s always helpful for homeowners to check with their local city regulations to budget for permit fees.

Additional Costs and Considerations

When budgeting for indoor pool cost, homeowners will often come across additional price factors and considerations. Some factors that can impact the final cost can include the difference between a prefabricated and a custom indoor pool, above-ground versus an inground pool, excavation, heat pump installation, customizations, maintenance, property taxes, and homeowners insurance premiums.

Prefabricated vs. Custom Indoor Pool

When a homeowner decides to install an indoor pool, they must choose between a prefabricated option or a custom-made pool. A prefab pool is made off-site and transported to the installation location as a complete shell, and a custom indoor pool is constructed on-site. Below are price averages for prefab and custom pool models.

• Prefabricated indoor pool. Prefabricated indoor pools can come in various sizes and shapes, such as square, rectangular, L-shaped, kidney, and circle. They do lack more extensive customizations because of their limited construction restraints. Usually made of precast concrete or fiberglass, prefab indoor pools are less expensive than custom options. It doesn’t take as long to construct the pool shell off-site as it does to make a custom pool at the installation space. Since prefab pools need to be transported and craned into place, they cannot be longer than 40 feet or wider than 16 feet. Concrete prefab pools are made of concrete panels that are made off-site and then aligned on-site. Prefab indoor swimming pools range in price from $20,000 to $85,000.
• Custom-made indoor pool. For a custom-made indoor pool, the shape, size, color, finish, and design are made according to the homeowner’s personal vision. The materials, construction equipment, and machinery are brought to the house, and the pool is built on-site rather than transported from a factory. Building a pool on-site can result in a damaged yard or landscaping, and additional landscaping services may be needed after the pool installation. Homeowners will also want to consider that the construction dust and debris that results from building an indoor pool can permeate into the home and result in extra cleaning. However, a custom pool can be much more luxurious than a prefabricated one, and a custom-made indoor swimming pool can cost from $29,000 to $90,000.

Above-Ground vs. Inground

Based on construction type, the installation price for an indoor pool can vary considerably. Below are the average price ranges for both above-ground and inground indoor pools.

• Above-ground indoor pool. Homeowners who are interested in saving money on indoor pool installation costs typically choose an above-ground pool for their space. Available as prefab or custom-made models, above-ground indoor pools are limited to 48 inches, 52 inches, and 54 inches in depth, but considering they can cost 20 percent less than an inground option, these limitations are worth it to many homeowners.
• Inground indoor pool. Inground indoor pools can also be prefab or custom made. It’s common for this type of indoor pool to be custom due to the wide variety of available styles and designs. Installation pricing can vary because of labor involved for excavation, on-site construction, drainage, and leveling services.

Excavation

Excavation, site prep, and construction will need to be done on the area where the indoor pool will be installed. If there is a structure already in place, the costs will be lower than if a structure needs to be constructed to house the indoor pool. The average cost for excavation runs from $4,000 to $10,000, including labor.

Heat Pump Installation

Heat pumps keep the pool water at a comfortable temperature for year-round swimming activities. Since electric heat pumps use less energy and are more efficient than resistance heaters, they’re the most common type of indoor pool heat pump. They can heat the water between to 78 and 86 degrees Fahrenheit, and they cost between $2,250 and $7,000 to install.

Customizations

Additional enhancements or customizations will drive up indoor pool cost. Below are some common indoor pool customizations and the average installation prices.

• Automatic pool cover. Automatic pool covers use interlocking gears to open and close the cover over the pool. These convenient covers protect against debris and dirt getting into the pool and add peace of mind if there are pets or children in the home. An automatic pool cover costs from $5,000 and $15,000 to install.
• Pool deck. A pool deck is a space where people can walk around the pool or sit and relax. The pricing can vary due to the selected materials, with concrete or a composite material being the most popular. The average cost runs between $6,750 to $8,000, but it can cost as much as $26,000 for custom designs or a large deck.
• Pool lighting. Lighting in the pool and around the swimming area can decrease the need for harsh overhead lighting. Lighting installation can cost from $450 to $1,200, with a multitude of design and style options available.
• Pool steps. Many prefabricated pool shells include steps for easy access in and out of the water. If steps are needed, they can cost between $1,400 and $1,900.
• Pool water features. Custom water features, such as waterfalls or fountains, provide relaxing sounds and add specialized features to an indoor pool space. They can range in cost from $100 to $3,500.
• Vapor barrier. To prevent excess moisture on the walls that can lead to mold and mildew growth, a vapor barrier needs to be installed on the walls surrounding the indoor pool. Vapor barrier installation cost ranges from $1,200 to $4,000, or $0.50 to $0.75 per square foot.

Maintenance

Indoor pool maintenance costs are typically less expensive than those for an outdoor pool. Cleaning and chemical treatments will make up the majority of the regular maintenance costs, while other price factors are based on the pool material. Vinyl pools need liner replacements every 10 years, concrete pools need resurfacing, and while fiberglass pools cost more in up-front costs, they require the least amount of maintenance over time. The best pool cleaning services can charge between $25 and $50 per hour for regular maintenance, or homeowners can complete the tasks on their own to save money.

Property Taxes

Since installing an indoor pool increases the value of a home and improves the property, the home’s property taxes will likely increase.

Homeowners Insurance Premiums

Installing an indoor or an outdoor pool will increase the homeowners insurance premiums. It’s recommended that homeowners shop around to find the best policy and price that works for their budget. Following the recommendations of the insurance company to minimize any risks and using as many safety features as possible can help homeowners lower their insurance premiums.

Types of Indoor Pools

The type of pool a homeowner decides on can be influenced by the size of the space and personal preference. Plunge pools can be priced on the lower end of the price range at $10,000, and a heated saltwater option can cost as much as $204,500. If a structure is needed to enclose the indoor pool, it will cost considerably more than if a structure is already in place. Below are the different types of indoor pools, their individual features, and the average cost of installation including labor.

Plunge

Plunge pool costs are relatively low, making them an excellent option for homeowners who are looking for cheap indoor pool ideas. They don’t require a lot of indoor space and usually have a flat bottom surface. The cost to install a prefabricated plunge pool runs from $10,000 to $25,000 and between $15,000 and $30,000 for a custom-made model.

Basic

The price to install a basic indoor pool varies according to the construction material and size. A basic pool would be rectangular in shape and does not include the price of a heat pump, decking, or any other customizations or enhancements. Homeowners can expect to pay between $20,000 and $90,000 for a basic indoor pool.

Heated

A heated pool isn’t necessary, but it’s a good option for those who live in colder climates. Pool heater costs can add $4,500 to the installation costs, which can increase the price of an indoor pool to $14,500 to $204,500. Homeowners will want to note that they’ll incur additional energy costs by running the heater.

Endless

For those interested in swimming laps in a pool that doesn’t take up as much space as a lap pool, an endless pool is an excellent option. Because of the specific designs that are needed to ensure the pool fits into the available space, endless pools are custom made. They can range in price from $50,000 to $60,000.

Lap

Indoor lap pools can be above-ground or inground and are available as a prefabricated option or as custom-made models. Lap pools are perfect for exercise, but they are less suitable for general swimming and relaxing. The usual size for a lap pool is between 40 and 75 feet, and they cost from $50,000 to $100,000.

Saltwater

The most expensive option for an indoor pool is a saltwater pool. Some homeowners prefer saltwater pools to avoid the treatment chemicals that are used in traditional pools. These types of pools need additional types of equipment, such as a saltwater generator, so it’s important for homeowners to consider the pros and cons of installing a saltwater pool. Indoor saltwater pools can cost from $156,000 to $200,000.

Benefits of an Indoor Pool

From year-round swimming to increased privacy, there are many benefits of having an indoor pool. Below are just some of the advantages of installing an indoor pool.

Year-Round Swimming

Having an indoor pool means it can be used year-round—no matter the weather or outdoor temperature. For those who live in colder climates, the money spent on outdoor inground pool cost would allow the pool to be used for only a short period of time before it needs to be closed down for the season. Homeowners can get more out of their investment with an indoor option.

Low Maintenance

An indoor pool requires less regular maintenance because it’s protected against dirt, tree debris, and insects. Since the pool is inside, there also won’t be sunscreen, dirt, or grass in the water. An indoor pool isn’t exposed to the outdoor elements, so there is less wear and tear over time.

Reduced Sun Exposure

Indoor pools can provide the health benefits of swimming without the risk of sun exposure. Excessive exposure to the sun can result in skin cancer, eye damage, and accelerated skin aging.

Privacy and Security

Indoor pools provide increased security and privacy compared to outdoor pools. Since it is enclosed, an indoor pool can have doors that lock securely and automatic covers to protect against anyone using the pool without permission.

Indoor Pool Installation: DIY vs. Hiring a Professional 

Installing an indoor pool is not a DIY project. Indoor pool installation requires the skills and expertise of professional plumbers, electricians, and pool installation professionals to make certain the installation process is done correctly and goes smoothly. While a homeowner may be tempted to save money by installing an indoor pool on their own, chances are that they will spend more money in the long run. Pool professionals have the tools, equipment, supplies, knowledge, and experience that are needed for a successful installation. Some potential problems of a DIY indoor pool project include the homeowner not getting the required permits, the pool not passing a city inspection before it can be used, the homeowner not adhering to safety regulations, and incorrect filter and plumbing connections. Hiring one of the best pool installation companies can help avoid safety regulation fines, costly repairs and do-overs, and plumbing and electrical mishaps.

How to Save Money on Indoor Pool Cost

Installing an indoor pool is expensive, and many homeowners are interested in how to save money on the installation project. Below are some money-saving tips for those interested in an indoor pool.

• Get multiple quotes. Get at least three quotes from reputable pool installation professionals near you to find a price that works with your budget.
• Go small. You can get all the benefits of an indoor pool at a lower price if you choose a smaller model.
• Weigh your options. Certain customizations like water features, slides, or color-changing lighting might be nice to have, but they can add up in a hurry.
• Install fiberglass. A fiberglass pool may be more expensive up front; however, it can lead to savings down the road compared to a vinyl pool that costs less to install but requires frequent maintenance and repairs.
• Postpone the extras. If it’s possible to hold off on a heater or a safety cover, you could save money by ordering them during the off-season.
• Opt for a simple deck. While mosaic tile may be your top choice for a deck surface, a simple concrete option will save money.
• Do your own maintenance. Performing regular maintenance on your own instead of hiring someone else to do it is an excellent money-saving option.

Questions to Ask About Indoor Pool Installation

Asking an indoor pool installation professional the right questions can minimize miscommunication and save money. Below are some questions for homeowners to ask about indoor pool cost and the installation process.

• How long have you been in business?
• Do you provide free estimates?
• Do you have general liability and workers’ compensation insurance?
• Will you provide references?
• Do you have examples of previous indoor pool installations?
• Are you a member of the Association of Pool & Spa Professionals (APSP)?
• Who will install the indoor pool?
• When can you start the project?
• How long will the installation take?
• Do you hire subcontractors for any part of the installation process?
• Will you supply a paper copy of our agreement?
• What warranties or guarantees do you offer?
• How can I leave a review of your work?

FAQs

Deciding on an indoor pool and keeping the overall indoor pool cost budget-friendly can be a daunting process. Below are some frequently asked questions about indoor pools and the installation process.

Q. What is the ROI on an indoor pool?

A pool can increase the value of a home, but there is no guarantee that a homeowner will get a good return on investment (ROI) and make all the money back. Adding a pool to your home may only increase the home’s value by 7 percent. The age, condition, and type of pool all influence its worth. A pool may be more attractive to a potential home buyer if it’s located in a warmer climate.

Q. What pool accessories should I consider with an indoor pool?

Some of the important accessories that are commonly used with an indoor pool are a heater, an automatic pool cover, and a dehumidification system.

Q. How long does it take to build an indoor pool?

Indoor pools usually take between 2 and 8 weeks to install, depending on size and materials.

Q. Does an indoor pool add value to a home?

Adding an indoor pool adds value to a home, especially in warm climates.

Q. Is it possible to build the pool now and enclose it later?

Yes, it is possible to build a pool and enclose it at a later date. Some homeowners prefer to do this to break up the project into more affordable chunks.

Q. What type of swimming pool is best indoors?

The type of indoor pool a homeowner decides on is largely influenced by personal preference and budget. Many homeowners prefer a fiberglass shell for the fast installation time of a day or two, along with the reduced maintenance over time.

Q. Do indoor pools need to be heated?

It’s not required, but it may make the swimming experience more enjoyable.

Q. Are indoor pools expensive?

Indoor pools are a bit more expensive than outdoor options. Excavation and building the enclosure structure are typically the biggest expenses.

Sources: Fixr, Investopedia