Inground Pool or Semi-inground Pool: What’s the Difference?

Introduction

Have you ever dreamed of a backyard pool but weren’t sure whether an inground or semi-inground pool was the right choice? Choosing the right pool can transform your outdoor space into a personal oasis—but the decision isn’t as simple as it seems.

Many homeowners believe that inground pools are the only option for a luxurious look, but semi-inground pools offer surprising benefits. This guide will break down the key differences between inground and semi-inground pools, helping you make the best choice for your home, budget, and lifestyle.

What Is an Inground Pool?

Definition and Characteristics

This is a pool that is fully installed below ground level, creating a seamless, built-in aesthetic. These pools are typically made from durable materials such as:

• Fiberglass – Prefabricated shells that offer a smooth, non-porous surface.
• Concrete – Highly customizable but requires more maintenance.
• Vinyl – A cost-effective option with a flexible liner.

Advantages

• Enhances property value – A well-designed pool can increase the resale value of your home.
• Provides a sleek and luxurious appearance – The fully recessed design creates a polished, high-end look.
• Allows for custom design options – Homeowners can choose from various shapes, sizes, and depths to fit their vision.

Common Uses

• Ideal for homeowners looking for a permanent and high-end pool installation.
• Works best for larger backyards with space for a fully recessed design.

What Is a Semi-inground Pool?

Definition and Characteristics

A semi-inground pool is partially submerged, with a portion of the pool wall visible above ground. This makes it a versatile option, particularly for properties with sloped terrain. These pools are commonly constructed from:

• Aluminum – Lightweight and rust-resistant.
• Steel – Durable but may require additional corrosion protection.
• Reinforced resin – Resistant to wear and tear, ideal for long-term use.

Advantages

• More affordable than a full inground option – Requires less excavation, reducing installation costs.
• Easier to install on uneven terrain – Works well in yards where a fully recessed pool may not be feasible.
• Can be customized with decking or landscaping – A semi-inground pool can blend seamlessly with outdoor spaces when paired with creative design elements.

Common Uses

• A great choice for homeowners with sloped yards or budget constraints.
• Serves as a hybrid between an above-ground and inground pool, offering flexibility in design.

Cost Comparison: Which Pool Fits Your Budget?

Initial Investment

• Inground – Higher upfront costs due to extensive excavation and premium materials.
• Semi-inground – More budget-friendly, with lower installation expenses.

Long-Term Expenses

• Inground – Higher maintenance costs due to material upkeep and structural repairs.
• Semi-inground – Lower long-term maintenance costs but may require additional structural support over time.

Aesthetic Appeal: Which Pool Looks More Seamless?

Inground Pools

• Blend naturally with landscaping.
• Offer endless customization options, including vanishing edges and built-in seating.

Semi-inground Pools

• Can be designed to mimic an inground pool with the right decking and landscaping.
• Provide a unique, modern look that stands out in unconventional yard layouts.

Maintenance Considerations: Longevity and Upkeep

Cleaning and Chemical Balance

• Both pools require regular maintenance, but inground pools may demand more frequent care due to their larger size and material type.

Structural Durability

• Inground – Built to last for decades but require significant repairs when issues arise.
• Semi-inground – May need additional reinforcement over time, especially in soft soil conditions.

Installation Time: Which Pool Is Faster to Build?

• Inground – Longer installation time due to excavation and structural work, often taking several weeks to months.
• Semi-inground – Faster installation, typically completed within a few weeks, with less disruption to your yard.

Flexibility in Design: Customization Options

Shapes and Sizes

• Inground – Fully customizable in shape, size, and depth.
• Semi-inground – Limited customization but still offers various shapes and sizes.

Enhancements

Both inground and semi-inground pools allow for:

• Waterfalls
• LED lighting
• Built-in seating and steps

Temperature Regulation: Heating and Cooling Differences

Inground

• Retain heat better due to full submersion.
• Require efficient heating systems in colder climates.

Semi-inground

• More exposed to air, leading to quicker temperature fluctuations.
• May require additional insulation or heating solutions to maintain a comfortable temperature.

Structural Considerations: Stability and Durability Over Time

Inground

• Built to last for decades with proper maintenance.
• Less susceptible to shifting ground conditions.

Semi-inground

• May require additional structural reinforcement depending on soil conditions.
• Can be more adaptable to sloped landscapes.

Family Suitability: Which Option Is Safer for Children and Pets?

Inground

• Easier to secure with fencing and covers.
• More accessible for small children, requiring extra safety precautions.

Semi-inground

• Raised edges can act as a natural barrier, reducing accidental falls.
• May require steps or ladders for entry, which can be a safety consideration.

Choosing the Right Pool: Factors to Consider

Before making your decision, consider the following:

• Budget – Determine how much you’re willing to invest upfront and in long-term maintenance.
• Yard Conditions – Consider the slope of your yard and soil stability.
• Aesthetic Preferences – Decide whether you prefer a fully recessed or partially elevated pool.
• Intended Use – Think about how you and your family will use the pool over time.
• Customization Needs – Evaluate how important design flexibility is to your vision.

Conclusion

Both inground and semi-inground pools offer unique benefits. If you’re looking for a seamless, high-end pool with long-term value, an inground pool may be the best fit. However, if you need a budget-friendly option that works well with uneven terrain, a semi-inground pool could be the perfect solution.

Ready to explore pool design options? Check out our range of fiberglass pool designs to get inspired! Have questions? Contact us to discuss your pool project.