By: Katie Flannery | Updated 3:53 PM, September 22, 2021

The underground swimming pool is the ultimate backyard upgrade. The average cost of installing an underground swimming pool ranges from US$38,719 to US$69,599, and the national average cost is US$51,833. The cost of underground swimming pools may vary depending on the type of material. They are divided into three types: concrete, vinyl, and fiberglass. There is a significant difference in the long-term cost between the options. Usually, a turnkey package includes electrical systems, pipes, pumps, decks, and basic safety fences. Some packages only include the pool shell and delivery. Other factors that affect the cost of underground swimming pools include shape, size, location, landscaping, custom work, lighting, water features, decks, heating, and fences. Due to the required permits, property taxes and maintenance costs, additional swimming pool installation costs may increase.

According to HomeAdvisor, the typical price for installing an underground swimming pool ranges from US$38,719 to US$69,599, and the national average price is US$51,833. The average size of the swimming pool is about 14 x 28 feet and the depth is about 6.5 feet. Typically, you will spend between US$50 and US$125 per square foot. Adding a pool house can increase the cost to $300 per square foot or more. Depth also affects the price, and more material is required according to the depth of the hole. The design cost of a deeper pool is close to $125 per square foot. The Red Cross recommends a dive depth of at least 9 feet.

Basic pool project quotes usually include delivery, installation, standard pool filtration, maintenance and cleaning equipment, first water injection and at least some pool decks. Remember, pool builders all pack their pools in different ways.

The larger pools are approximately 18 x 36 feet, and many are 9 to 12 feet deep. The starting price for this size is approximately $35,000. Small swimming pools, such as diving pools, spool pools and cocktail pools, range from US$10,000 to US$25,000. These pools are usually about 10 feet wide, 20 feet long, and 5.5 to 7 feet deep. They are mainly used for cooling and rest, but they can also be equipped with jet swimming rings. Regardless of the shape, the pool design plan is about 50 to 125 dollars per square foot.

There are three different types of underground swimming pools: vinyl, fiberglass and concrete. Each type has its advantages and disadvantages. In sunny states such as California, Florida, and Texas, swimming pools are usually cheaper than in the northern states.

The design will partly determine the cost of the underground swimming pool, and the swimming pool material will determine the level of customization of the swimming pool. Concrete pools are more customizable than fiberglass or vinyl pools. The most popular shapes for underground swimming pools are:

The fiberglass pool has low maintenance costs, is durable, and is compatible with the salt system. Fiberglass pools have the lowest total cost of ownership because they are built off-site and use low chemicals. One disadvantage of fiberglass is that the shape cannot be customized. The concrete can be fully customized and is very durable. However, these pools have the highest maintenance and chemical requirements. They are also incompatible with brine systems. Vinyl-lined pools are more customizable than fiberglass and have the lowest installation cost, but vinyl must be replaced every 5 to 9 years. In addition, vinyl will tear and become brittle over time.

Depending on the type of pool material, labor costs will vary. For example, the installation time of concrete is longer than that of fiberglass. Labor costs can also vary greatly depending on geographic location. Higher cost of living usually means higher labor costs. If large trees or root systems need to be cleaned up, labor costs for excavation may soar.

The location will affect the cost of the installation of an underground swimming pool, depending on several factors. You can plan to pay 15% to 25% more in the northern states than in places like Texas, Arizona, or Florida. In these areas, the price of concrete pools can be comparable to fiberglass pools. Building underground swimming pools in expensive urban areas also usually costs more than in rural areas.

Of course, considering the cost of underground swimming pools is not just about excavation and filling. Most cities require a building permit to install an underground swimming pool. This helps ensure that the work is done in accordance with safe and professional construction standards. A separate electrical permit may also be required. Building permits usually cost about US$450 to US$1,800 per permit. Pool contractors and electricians usually obtain permits for their workplaces, but homeowners can do the same. After the project is completed, the inspector will confirm that it complies with local building codes.

Once the permit is obtained, the land needs to be prepared for the installation of the swimming pool. This includes excavating property and rough grading of swimming pools, terraces and planting areas. The cost of landscaping and excavation will vary according to the property and type of swimming pool. Some swimming pools, such as plunge pools, are more expensive because they are much longer than ordinary swimming pools.

The dark pool can absorb the heat of the sun, thereby reducing heating costs. Homeowners can also reduce maintenance costs by choosing a long-life pool finish. The glass fiber pool has a smooth, non-porous surface finish, which can inhibit the growth of algae and promote circulation. Concrete has a rougher, porous surface and usually requires more attention and chemicals to prevent algae from entering.

When budgeting for the cost of an underground swimming pool, there are usually other price factors and considerations. Some excavations cost between US$1,500 and US$5,000, and hitting a rock may add an additional US$1,200 or more. Hard-to-reach areas may increase by $10,000 or more and affect the length of the project. If you live in a remote area, the travel distance of the construction staff may increase by $100 or more. If you decide to use a fiberglass swimming pool, you may need a crane if the access to the backyard is not open enough. Additional costs may include landscaping, accessibility and fencing, weather conditions, filters, pumps, heating systems, lighting, electrical work, deck installation, property taxes and annual maintenance.

Landscaping plays an important role in the pricing of swimming pool projects, with an average cost of US$1,500 to US$5,200, or approximately US$4 to US$12 per square foot to add shrubs, plants, and trees. The cost of landscaping rocks is between US$460 and US$1,000. The three common landscape design styles for underground swimming pools are modern, tropical and desert.

The cost of the retaining wall is approximately US$1,200 to US$13,000 and creates a level yard, but when dealing with a sloping yard, you may need to search for "pool contractor near me" to get accurate pricing. For the 12 ft x 24 ft model, the cost of a semi-underground swimming pool will be 8,000 to 10,000 US dollars higher than an underground swimming pool. This type of swimming pool can be built directly on the slope, and the installation of the infinity edge requires an additional payment of 15,000 to 20,000 US dollars. The cost of rearranging the lawn is between US$1,000 and US$3,000; the excavated soil can be used to level the yard, which can save US$1,000 or more in cleaning costs.

Fence installation costs range from 13 to 50 US dollars per linear foot, or a total of 1,500 to 10,000 US dollars. Gates increased by $200 to $350 each. The cost of each panel of the movable fence ranges from $100 to $500, including the locks and latches that hold them in place. The installation cost of the swimming pool ranges from US$600 to US$2,200, and the cost of high-end automation and safety options ranges from US$1,000 to US$15,000. Child locks and latches should always be used.

The time required to install the pool varies with the size of the pool, the number of people installed, and the weather. Fiberglass pools are easy to install and can be installed year-round, but vinyl and concrete pools require optimal weather conditions. Vinyl cannot be installed on days that are too hot or too cold because the material will expand, shrink or crack. Concrete takes at least 28 days to cure, and concrete cannot be poured while it is set because it may crack.

Electrical work usually costs about $2,200. If you live in a colder climate or want a heated swimming pool, the cost of a pool heater should also be included in your overall budget. The installation cost of a pool heater is between US$1,500 and US$4,000, and depending on where you live, usage, and season, operating costs are usually between US$100 and US$600 per month.

Outdoor lighting adds to the atmosphere and ensures the safety of the pool area. The average of a 50-watt lamp is US$100 to US$300 per lamp. The prices of traditional lamps and energy-saving LEDs vary depending on features such as colored lamps, floating lamps, and output. Certain LED and fiber optic options can usually be controlled by telephone. Lighting can be added after the pool is installed, but it is recommended to install them during the installation of the pool.

Depending on the size of the swimming pool and the required decoration materials, it is estimated that an additional 3,000 to 12,000 US dollars will be paid. The cost depends on the number of sides, width and selected material of the installation deck. Material choices include natural, engineered or composite wood; each has cost and durability considerations. If you choose well-designed or expensive materials, the overall price may increase.

You can add waterfalls, fountains and lights to create a relaxing swimming pool. The cost of upgrading to a deluxe pool ranges from US$100,000 to US$200,000. Smaller upgrades can increase anywhere from a few hundred dollars to 30,000 dollars or more.

The cost of a beach entrance pool is as much as a standard pool, or $50 to $125 per square foot. Instead of using steps, their sides slope slightly upward to make contact with the ground. The price of the lagoon style is 50,000 to 150,000 US dollars. These costs are higher due to custom designs and additional components (such as waterfalls and landscapes). They are designed to mimic the appearance of tropical resorts.

The hot tub is a popular feature, and the spa can add 5,000 to 8,000 dollars. If you need to dig additional areas, the cost of a built-in hot tub may be between $15,000 and $20,000. The cost of a waterfall installation is 1,500 to 5,000 US dollars, and a carefully crafted one can reach 30,000 US dollars. A good rule of thumb is to use 10% to 15% of the total project for water features. The installation cost of the chute is between US$1,000 and US$14,000, depending on the design and any additional features, such as water jets. Diving board installations average between US$300 and US$5,000, depending on the type. Diving boards may also need to meet local regulations.

The cost of a pool fence is between US$5,000 and US$15,000. These cages can be made of mesh, glass, plastic, and vinyl, and they can extend the swimming season by keeping heat and making the water cleaner and longer. They can also provide UV protection.

Adding upgrades such as underground swimming pools may increase property taxes. Tax increases depend on state tax laws. Swimming pools installed for medical reasons can add $12,000 or more in tax deductions. This can save $3,000 or more in taxes-of course, the actual savings will largely depend on your tax class.

The maintenance cost of the underground swimming pool ranges from US$100 to US$200 per month. Maintenance can be time-consuming and cumbersome, and many pool owners prefer to hire a contractor. Swimming pool maintenance professionals also provide winter and reopening services. Basic annual maintenance is increased by US$1,200 to US$1,800.

An important influence on the total cost of an underground swimming pool is the material. Most swimming pools are constructed of concrete, fiberglass or vinyl. Below are the three most popular pool types and their associated underground pool costs.

The initial price for installing a concrete underground swimming pool is between US$35,000 and US$65,000, but it is expected to pay an additional US$27,000 to US$40,000 within 10 years. Typical maintenance includes pickling and replastering. Since concrete pools are usually larger, more electricity and chemical treatment are required to keep them clean and swimming. Pool professionals can use shotcrete or shotcrete as a concrete pool. They are all specific; the only difference is the proportion of water and the way the materials are applied. Concrete tanks need to be pickled every 3 to 5 years. Concrete is durable, but if the swimming pool is not maintained, mold and algae will grow. Because pickling will strip off a thin layer of finish, the shell needs to be repainted at some point.

The cost of a fiberglass swimming pool ranges from 20,000 to 36,500 US dollars. This fee includes delivery, installation and basic deck. The 10-year maintenance cost averages between US$5,000 and US$15,000. Place the prefabricated fiberglass cell shell into a horizontal hole to match the shape. The width of the fiberglass shell is usually no more than 16 feet. For this type of swimming pool, no special treatment or requirements are required to maintain the shell.

The cost of installing an underground vinyl pool ranges from US$20,000 to US$40,000. For more than 10 years, the average maintenance cost has been between US$11,000 and US$17,000. Vinyl pools are versatile and not easy to wear. They come in a variety of shapes and custom designs. They are easy to clean, and many owners handle the cleaning themselves. However, vinyl liners can tear and become brittle, so they need to be replaced every 5 to 9 years. Algae is not easy to grow on vinyl surfaces, but algae can grow under the liner. This can be resolved when the gasket is replaced.

Few home facilities can create as much fun and excitement as an underground swimming pool. The swimming pool can instantly turn a boring backyard into a sun-drenched oasis that the whole family can enjoy. Some of the benefits of swimming pool installation are to increase relaxation and exercise, increase home value, reduce taxes, and enhance the beauty of your home.

The swimming pool is a great way for the whole family to get more exercise. Non-impact exercise is good for people with joint problems. Adults and children like to relax and play around the swimming pool, while the family swimming pool is flexible and spontaneous.

Real estate prices usually drive the price of swimming pools. Due to the high real estate value, the cost of a swimming pool in your area may be higher. An underground swimming pool can sometimes increase the value of a property, especially in warm areas or communities where everyone has it. According to the National Association of Realtors, a swimming pool can increase the value of a house by 8%. Some potential buyers may be excited about the swimming pool, while others don't want the hassle. One thing is certain: if you don't maintain it, a bad swimming pool will damage the value of your home.

If you install a swimming pool for medical reasons, you may add a tax deduction of $12,000 or more, which can translate into tax savings of $3,000 or more, depending on your tax class. If you install a swimming pool for medical reasons, you can deduct installation costs and operating expenses, even if technically speaking, the swimming pool is improving your home.

Inlaying ceramic tiles in the steps and seats of a fiberglass pool is a great way to add personality to the pool and give it a customized look. In addition to this aesthetic enhancement, the mosaic tiles on the steps and seats are also functional, highlighting the different entrance and exit points of the swimming pool. Although the water features have little to do with the surface of the swimming pool, they still exude a custom, elegant and permanent feeling for the swimming pool.

An underground swimming pool can be a great addition to your home. A careful budget will help you stay on track and avoid additional costs. To install an underground swimming pool, it is recommended to hire professionals. Making mistakes in DIY work may mean additional costs for professional repairs or replacements. Ask a professional to consult and search for "pools for sale near me" to find accurate estimates and pricing.

One of the benefits of using a professional is that you usually get a full warranty. This means that if the builder makes a mistake during the construction process, or if your swimming pool has problems from the beginning, the builder will be responsible for repairing it.

Not every pool installation is the same. Some yards may require retaining walls to fit into the swimming pool, but the DIYer may not realize this until it is too late. There is a danger of hitting groundwater or rocks during excavation. Letting professionals handle the project is usually worth the extra cost.

Installing the pool yourself may affect the installation schedule. The longer you leave the project unfinished, the greater the chance of encountering problems, and the more you need to pay for equipment rental. The sooner the project is completed, the better.

The overall cost of an underground swimming pool can be high, and the additional costs associated with the installation of the swimming pool will increase rapidly. One way to save money is to install the cheapest swimming pool you can find, but there are other ways to save money without compromising the quality and type of swimming pool you want.

Asking the pool installation professionals the right questions can minimize communication errors and save money. Here are some questions about the cost of installing an underground swimming pool.

Deciding on a swimming pool installation and keeping the overall underground pool cost budget-friendly can be a daunting process. Here are some frequently asked questions about the cost of installing a backyard swimming pool to help you make a decision.

The average cost of a 12 ft x 24 ft underground swimming pool is between US$14,400 and US$36,000.

The price of a prefabricated fiberglass shell is usually between US$20,000 and US$40,000, making it the cheapest underground swimming pool. The cost of additional features such as heating and fences for a small 12-foot-wide, 24-foot-long vinyl swimming pool ranges from US$25,000 to US$35,000.

This is a large construction project with many different stages, expensive components and utility work such as natural gas, electricity and pipelines.

Source: HomeAdvisor, HomeGuide, Thumbtack, Angi, NerdWallet

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