Cost to Install an Indoor Swimming Pool - Globo Pool
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Cost to Install an Indoor Swimming Pool

Some time back it was considered extremely rare for homeowners to install indoor pools. However, today, technology has advanced to a point where almost anyone can afford to install an indoor pool and enjoy swimming all-year-round, regardless of the geographic location.

Indoor pools also require fewer maintenances compared to the outdoor pool; debris and leaves are out of reach. Additionally, these pools use less chemical since sunlight doesn’t reach the water and diminish chlorine or the sanitizer levels.

Indoor Swimming Pool Costs:

I believe you want to know how much it can cost you to install, run, and maintain an indoor pool. Right? Okay, here is all you need to know on indoor swimming pool costs.

NB:The costs are an approximate idea, It might go up or down according to your design and demand.

What type of swimming pool is ideal for indoors?

Before you even get to the costs, it would be better to know the different types of pools ideal for indoors. Essentially, there three types, namely, concrete, vinyl liner/resin, and fiberglass. Any of these three pool types are applicable for indoor installation.

However, fiberglass is the most common as it’s faster and easy to install. Additionally, it reduces the construction costs, and since fiberglass is soft to touch, it gives a better swimming bath experience. However, they aren’t as durable as concrete. Each of these three pool types has its cost and prices which I’ve discussed below.

Choosing an indoor swimming pool

An indoor pool varies in size to fit the available space. You can decide to have a small spa pool for relaxing or exercising with resistant jets. You can also choose to go to a large indoor swimming pool for regular swimming, but then you will need to have a bigger budget and also install a pool cover.

Typically, an indoor swimming pool needs to fit your house design and size depending on the purpose of the swimming pool. The best part about the indoor pool is, it can be on any configuration that fits your available space. It’s doesn’t need to be rectangular or circular; it can be built to bend some corners.

How much does an indoor swimming pool cost?

As I mentioned above, above ground or semi in-ground indoor swimming pools are either made of fiberglass, resin or concrete. When making your budget, you must consider the buying price, installation, and maintenance costs. The costing is also affected by the size and type of indoor pool you want to install.

An in-ground pool is significantly expensive than an above ground pool and costs about the same as an outdoor pool. Additionally, a deeper swimming pool or a sloping pool cost more. Above-Ground pool suppliers can give you a better price estimate of all the pool sizes and depths and the installation costs.

Here are the costs of an indoor swimming pool: By ruling out the pool covers, a fiberglass in-ground pool costs approximately $25,000 to $75,000, which depends on the pool size. A concrete, on the other hand, costs around $100,000 or more, but an average above ground pool costs around $50,000.

How much does it cost to construct an indoor swimming pool?

Based on my experience in the swimming pool industry, the cost of an indoor pool in most states starts around $200,000. But why that much? Here is the breakdown:

A typical swimming pool cost approximately $40,000 and $60,000. Assuming you want to build a 25ft x45ft or 1125sq feet structure, and the average cost/square foot is $100, then this structure will cost you $112,500.

Additionally, you need to dehumidify your pool to protect its structure from moisture damage, which will cost you around $20,000 and $30,000.

By using the average cost of all these prices, the total cost for the project sums up to $187,500, without the transportation and other simple fees.

But if you are running on a budget, you don’t have to spend all that money. Here are three things you can do to keep the costs low:

  1. You need to avoid luxury indoor swimming pool constructors. Even though they can construct you a truly spectacular pool, their prices can be quite enormous.
  2. Go for an essential pool size and do not get a custom design. It’s quite easy for the installer and the sellers to sway you into getting a custom pool which perfectly fits the room. However, that can cost you tens of thousands more in expenses.
  3. Construct the pool in an extension. An extension makes it easy and cheap to install a dehumidifier system.

If budget isn’t a problem and you need a genuinely gorgeous indoor pool, be prepared to utilize more than $200,000. The price can give you even a custom made design and a specialized team to construct it.

What are the costs of installing a dehumidifying system?

A pool dehumidifier is an important system that helps prevent water damage to an in-house swimming pool, while also keeping control of water in the air. A typical dehumidifier costs around $10,000 or more, and installation doubles the price. However, if you do not want to go with a big, famous brand, you can buy a dehumidifying system at around $2000.

How long does it take to construct an indoor swimming pool?

With a good pool building contractors, the construction period of your indoor pool should be between 6 weeks and ten weeks. However, depending on the size, design, and the room you are building it in, the time frame can be longer.

What are pool accessories to consider with an indoor pool?

Owning an indoor swimming pool might demand some accessories that will cost you some money. Some of these accessories include:

Automatic Pool Covers:

A pool cover is designed not only keep the debris out but also prevent evaporation and keep the heat inside your swimming pool. In case of an indoor swimming pool, the cover will keep the temperature inside the pool and also prevent moisture from running out to the air. The cover can also make it safe for kids and pets running around the house.

Pool Heater:

With an indoor pool having it built inside a house, it means it receives little or no direct sunlight. That means you need another source of heat for your pool. Getting a traditional pool heat can serve you great. You can decide to buy a natural/propane gas heater or an electric type.

Other accessories:

Since it’s a swimming pool, then you will need a pump and a filter system to keep the water circulating, clean, and safe.

What is the indoor swimming pool running costs?

Pool running costs depends on the systems you’re using to maintain the pool, the running time, and the frequency of use. Running a pool pump for four hours in a day, it will cost you around $20 -$40 per month. Pool chemicals, on the other hand, will cost you approximately $80 in the first month and then decrease to roughly $40 if you keep your pool top of cleaning.

You also need to get the pool cleaned by getting a pool cleaner, which will cost you around $40 – $100 per pool cleaning session and needs to be done once per week with frequent use. However, you can save this cash by cleaning the pool yourself. It’s not hard, and it doesn’t take long. Unless you’re too busy or you’re not physically fit for the job.

Finally, if you will be heating your indoor pool, expect to pay some few thousand for the heater. Also, if it’s electric, the bills will be around $150 – $250 each month. For a gas-powered heater, the cost might be a bit higher. The prices can go lower by installing a solar pool cover.

How long does it take to care for an indoor swimming pool?

The time depends on pool size and design. On average, the first pool cleaning can take you around one hour and reduce to around 30 minutes, one in every week. All you need to do is chock the swimming pool once or twice in a month to keep the pool water clean.

Also, add chlorine float and 2-3 chlorine tablets each week. It’s not difficult to maintain an indoor pool, all you need is some few hours every month. Ensure you keep the maintenance at the top as it’s quite challenging to keep the pool water chemistry balanced once it starts changing color.


For more than one reason, an indoor pool can give you almost all the fun and excitement throughout the year. Indoor pools offer nearly all the benefits, as well as being excellent when you have back problems or other medical ailments. Although the pool is indoors, you can also put money in a heater for your pool and keep the water at a specific temperature every time you plan to jump and swim. Happy Swimming!!!

About the author

Sharif Miah

Hi! I'm Sharif, the founder of Globo Pool® and I have been working in the pool & hot tub industry for the last few years. I love to share my experiences with people & hope you are enjoying my information and lessons!

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