How Much Does a Semi-Inground Pool Cost to Install? [2026 Data]

In 2026, the national average cost to install a semi-inground pool is $12,000. Most homeowners pay between $7,000 and $20,000, with pool size, material choice, and site conditions (such as steep slopes or limited access) as the primary cost drivers. Semi-inground pools sit between aboveground and in-ground pools, offering a middle-ground option in terms of both cost and installation complexity.

How Much Does a Semi-Inground Pool Cost by Size?

Pool size is the primary cost driver for semi-inground pools, with prices ranging from $7,000 for a 10-foot-diameter pool to $25,000 for a 24-foot-diameter pool. Prefabricated shapes in standard sizes cost less than custom-measured pools. Most semi-inground pools are between 3 and 8 feet deep, depending on your preferences and the extent of excavation you plan to do. The table below breaks down how semi-inground pool costs vary based on size:

How Much Does a Semi-Inground Pool Cost by Material?

Material choice has a major impact on your semi-inground pool cost, ranging from an average of $3,000 for steel to $22,000 for concrete. For an in-ground-style build where land is built up around the pool, vinyl, fiberglass, and concrete are the standard options. For partially sinking an aboveground pool into the ground, steel, resin, and aluminum are the more common and budget-friendly choices. Here's how your semi-inground pool material might affect the cost:

Pool Installer Costs: What Hiring Includes

Labor accounts for 30% to 40% of your total semi-inground pool cost, which often ranges from $7,000 to $20,000. Sinking an aboveground pool into the ground requires less work than building an in-ground pool partially above ground, so your labor costs will be higher if you choose the latter approach. When you hire a local pool installation company, they'll charge for these tasks:

• Excavation: $400–$1,500

• Pool construction: $$1,000–$3,000

• Plumbing and electrical work: $500–$1,500

• Liner installation: $1,300–$3,900

• Filling the pool: $90–$300

Semi-Inground Pool Additional Costs: What to Budget For

Beyond the base installation price, several mandatory and optional cost factors will influence your total semi-inground pool budget. Site preparation, accessibility challenges, permits, and ongoing maintenance are among the most common additions homeowners encounter. Planning for these extras upfront helps you avoid budget surprises once the project is underway. 

The table below breaks down common additional costs when installing a semi-inground pool:

DIY vs. Hiring a Pro to Install a Semi-Inground Pool

Going the DIY route for a semi-inground pool installation can save an average of $5,000 in labor costs, but it requires hands-on experience with excavation equipment and outdoor construction management. If you choose to DIY, materials alone will range from $1,000 to $20,000, and equipment rental adds roughly $2,200 per week on top of that. For most homeowners, the complexity of leveling, permitting, and licensed electrical and plumbing work makes hiring a professional the safer and more cost-effective long-term choice.

Here's why it's better to hire a professional:

• Improper leveling or unstable installation can lead to safety hazards and structural issues.

• Pros can navigate building codes, inspections, and permit regulations.

• Sloped or uneven yards require grading expertise.

• Electrical and plumbing systems often require licensed installation.

• A professionally installed pool often comes with a warranty.

If you want to help, you can DIY a few minor tasks to save money, such as the following:

• Clearing the site before excavation begins

• Building a surrounding patio or deck

• Handling the landscaping after installation

• Installing pool accessories

We strongly recommend consulting an in-ground pool company near you if you plan to install a semi-inground pool.

5 Tips to Reduce Costs When Installing a Semi-Inground Pool

When taking on this project, the most cost-effective approach is to opt for the sunken aboveground pool option. While less permanent in nature and appearance, you will spend less on materials and installation. You can also consider the following tips to save money:

• Limit Pool Size: Larger pools will always cost more, so consider the depth and dimensions you actually need. Decrease the size to save about $30 to $80 per square foot.

• Choose Your Material Carefully: Lower costs can be achieved by selecting a material like a vinyl liner ($7,000 on average) over concrete ($22,000) or fiberglass ($15,800).

• DIY Later Stages: While we don't recommend DIYing your semi-inground pool, you can save money by doing the finishing touches yourself, including installing a pool deck ($3,000 to $12,000) or flower beds ($1,300 to $6,300).

• Self-Manage Maintenance: Professional pool maintenance, including cleaning, skimming, balancing chemicals, and repairing liners, costs $50 to $100 per hour. Learn to do these tasks yourself to save thousands over the life of your pool.

• Invest in a Pool Cover: Pool covers cost an average of $1,800, but they can help cut down on cleaning time, damage to your liner, and the need to run your heater if you invest in a solar cover.

Do Semi-Inground Pools Add Value to Your Home?

Pools have a return on investment (ROI) between 5% and 56%, and semi-inground pools increase a home's value less than a full in-ground pool. The ROI is lower than for other home projects (such as landscaping) because pools are divisive. Some homeowners prefer not to deal with the maintenance, especially in cooler climates.