What’s the Difference Between an Inground Pool and a Semi-inground Pool?

Introduction

Ever wondered if the pool you choose could transform your entire backyard experience? Whether you’re dreaming of a space for morning laps, weekend barbecues, or sunset relaxation, the type of pool you choose will shape not only your yard but your lifestyle.

Choosing between an inground and a semi-inground pool could be the most important decision you make for your outdoor living space. And while many people assume semi-inground pools are simply “budget” versions of inground pools, the reality is far more nuanced.

Think of selecting a pool like choosing the perfect pair of shoes: it’s not just about style—it’s about comfort, fit, and how it complements your daily life.

In this guide, we’ll break down the key differences between inground and semi-inground pools—from cost and installation to aesthetics, maintenance, and more. If you’re considering installing an inground pool or exploring semi-inground options, understanding the pros and cons of each can help you create the ultimate backyard retreat.

What is an Inground Pool?

Definition and Key Features

An inground pool is completely installed below the surface of your yard, offering a seamless and integrated appearance. This type of pool is known for its luxurious feel, high level of customization, and long-term durability.

Key features include:

Installed fully below ground level
Often constructed from concrete, fiberglass, or vinyl
Offers a sleek, permanent addition to your outdoor space
Ideal for homeowners seeking a high-end, long-lasting investment

Types of Inground Pools

There are three main types, each with its own benefits:

Concrete Pools: Highly customizable in shape and features, but they require more maintenance and take longer to install.
Fiberglass Pools: Pre-molded and quick to install, these pools are low-maintenance and feature a smooth, non-porous surface. Explore our fiberglass pool designs.
Vinyl Pools: More affordable and flexible in shape, vinyl pools come with replaceable liners and moderate upkeep needs.

What Is a Semi-inground Pool?

Definition and Unique Characteristics

A semi-inground pool is partially installed in the ground—usually halfway—offering a unique blend of inground aesthetics and above-ground convenience. This design is especially ideal for sloped or uneven yards where a fully inground pool might not be feasible.

Defining traits of semi-inground pools:

Partially embedded into the ground
More budget-friendly than fully inground pools
Can be adapted to uneven or sloped terrain
Offers quicker installation and less disruption to your yard

Construction Materials

Semi-inground pools are typically made with:

Steel or aluminum walls paired with a vinyl liner
Reinforced frames that support partial burial
Optional decking and landscaping for a more cohesive look

These pools are designed to offer flexibility and style without the extensive commitment of a fully inground pool.

Cost Comparison: Inground vs. Semi-inground

Initial Investment

When it comes to upfront costs, the difference is significant:

Inground: $50,000 to $100,000+, depending on size, materials, and features
Semi-inground: $10,000 to $25,000, making them a more accessible option for many homeowners

Long-Term Expenses

Inground: Higher ongoing maintenance, energy usage, and repair costs—but also longer lifespan and added property value
Semi-inground: Lower maintenance and energy costs, but may require liner replacement and have a shorter overall life expectancy

Feature	Inground	Semi-inground
Initial Cost	$35,000–$100,000+	$10,000–$25,000
Installation Time	4–8 weeks	1–2 weeks
Lifespan	30+ years (concrete)	10–20 years (liner-based)
Maintenance Costs	Higher	Lower
Customization	Extensive	Moderate

Aesthetic Appeal and Landscaping Integration

Seamlessness and Design

Inground pools offer a polished, integrated look that can be tailored to match your home’s aesthetic. With surrounding patios, gardens, and lighting, they become a centerpiece of outdoor luxury.

Semi-inground pools can still be beautifully landscaped—especially with custom decking and retaining walls—but they may appear elevated, especially on flat lots.

Customization Options

Inground: Total freedom in shape, size, and features like tanning ledges, waterfalls, lighting, and more
Semi-inground: More limited in design, but still stylish with the right landscaping and accessories

Maintenance Considerations

Cleaning and Equipment

Inground: Often require more advanced filtration systems, automatic cleaners, and frequent servicing
Semi-inground: Easier to access for cleaning, and typically use simpler equipment

Longevity and Repairs

Concrete Inground Pools: Can last over 30 years with proper upkeep
Semi-inground Pools: May need liner replacements every 10–15 years, depending on usage and care

Installation Time and Complexity

Building an inground pool is a major construction project that typically takes 4–8 weeks. It includes:

Excavation and grading
Plumbing and electrical work
Concrete or fiberglass shell installation
Finishing touches like coping, decking, and landscaping

Semi-inground Pool Installation

Semi-inground pools are faster and less invasive to install:

Typically completed in 1–2 weeks
Less disruption to your yard
Ideal for sloped lots or tight timelines

Design Flexibility

Shapes and Sizes

Inground: Offer a wide range of designs—kidney, lap, rectangular, freeform, and more
Semi-inground: Commonly round or oval, but new models are expanding design options

Smaller Pools

If you have limited space, small inground pools—also known as plunge pools—are a luxurious solution. They offer the elegance of a full-size inground pool in a compact footprint, perfect for urban yards or cozy retreats.

Water Temperature and Energy Efficiency

Heat Retention

Inground: Naturally retain heat better due to being surrounded by earth, which acts as insulation
Semi-inground: May lose heat more quickly, especially in cooler climates

Heating Systems

Inground: Often equipped with advanced heating systems for year-round use
Semi-inground: Typically use smaller heaters, which can be less efficient in colder months

Structural Stability and Durability

Long-Term Performance

Inground: Built to last, with reinforced structures that withstand soil shifts and weather extremes
Semi-inground: Durable when properly installed, but may be more vulnerable if exposed or installed on unstable ground

Terrain Adaptability

This is where the semi-inground or partial inground pool shines:

Partial Inground Pool: Ideal for sloped or uneven terrain where full excavation is impractical
Inground Pool: Requires a level surface and significant excavation

Family and Safety Considerations

For Children and Pets

Inground: Can incorporate safety features like automatic covers, alarms, and fences
Semi-inground: Naturally deter access with their elevated walls, adding a layer of safety

Entry and Exit

Inground: Feature built-in steps, tanning ledges, and shallow ends for easy entry
Semi-inground: May require ladders or custom decking for safer access

Choosing the Right Pool for Your Home

Lifestyle and Usage

Think about how you’ll use the pool:

Relaxation, exercise, entertaining, or family fun?
How often will you use it, and during which seasons?

Also consider your space, soil type, and long-term plans for your property.

Budget and Timeline

Your budget and desired timeline will play a major role:

Inground pools are a larger investment and take longer to complete
Semi-inground pools offer a faster and more affordable path to pool ownership

Professional Guidance

Every yard is different—and so is every homeowner’s vision. Speaking with a pool expert can help you evaluate your property, clarify your goals, and choose the best option for your lifestyle.

Conclusion

Choosing between an inground and a semi-inground pool comes down to your priorities—budget, aesthetics, property layout, and how you plan to use the space. Inground options offer unmatched luxury, customization, and long-term value, while semi-inground pools provide flexibility, quicker installation, and cost savings.

Both options can transform your outdoor space into a relaxing and inviting retreat. The key is finding the one that fits your vision, lifestyle, and home. Ready to dive into your pool project? Contact our experts today to explore the perfect design for your lifestyle!