Modular pools are custom swimming pools made from individual, pre-engineered components that are tailored to your specifications and assembled on-site. This makes it easier to install them in places that traditional pools simply can’t reach. But can a modular pool be installed in-ground like a conventional pool? Yes, absolutely!

Modular pools can be installed indoors or outdoors, above-ground, partially in-ground, and fully in-ground. In this guide, we explain everything you need to know about installing semi-in-ground and in-ground modular pools.

In-Ground vs. Semi-In-Ground Modular Pools

An indoor modular pool installed fully in-ground, inside a room with natural wood cabin walls
A modular pool installed fully in-ground, in a room with natural wood cabin walls.
A partially in-ground Endless Pools modular swimming pool, with stone masonry and landscaping
A modular pool installed semi-in-ground, in a backyard with stone masonry and landscaping.

If you’re installing a modular pool in the ground, you have two options: fully in-ground and semi-in-ground.

Both can be installed either indoors or outdoors, and come with their own aesthetic considerations, installation requirements, and benefits:

TypeAppearanceConstructionBenefits
Fully In-GroundFlush with the ground for a sleeker and more seamless, traditional pool lookMore excavation/digging, higher construction costs, and longer installation timelineBlends naturally with surroundings and makes spaces feel open and harmonious
Semi-In-GroundPartially below ground level and partially above it, for a more elevated focal pointLess excavation, lower construction costs, and faster installationRequires less excavation, ideal for sloped yards, and offers a built-in appearance at a more budget-friendly price

Let’s take a closer look at how these two options compare.

Fully In-Ground Modular Pool Installation

Fully in-ground modular pools are installed flush to the ground, offering the same seamless aesthetic as many traditional pools. Modular pools that are installed fully in-ground do require more extensive site prep and excavation work when compared to semi-in-ground pools.

Appearance

Fully in-ground modular pools are installed flush to the ground and level with the surrounding surface. This can create a sleek, high-end look that mirrors the luxury of a traditional swimming pool. Since the entire pool body is concealed underground, the finished design blends naturally with its surroundings, which can make spaces feel more open.

Construction

Fully in-ground modular pools require deeper excavation, more extensive grading, and additional structural support around the pool shell. Depending on site conditions, it may also involve retaining walls, reinforced backfilling, more complex drainage systems, or concrete work to ensure long term stability.

Because of this, you can typically expect in-ground construction to require more labor and materials compared to partially in-ground installations. This can extend the project timeline and often requires a higher construction budget.

Benefits

A fully in-ground modular pool looks similarly to a traditional pool, while offering more flexible installation options, faster construction, and integrated design features. Because the pool sits flush with the surrounding surface, it creates a visually continuous flow that can make spaces feel bigger, more open, and harmonious.

Semi-In-Ground Modular Pool Installation

Semi-in-ground modular pools are partially buried below ground level, with the top portion of the walls visible above ground. Since they require much less excavation work, they are ideal for yards with steep slopes or more challenging terrain in general.

Appearance

Partially in-ground modular pools offer a high-end, custom look that can accentuate sloped terrain, creative landscaping, and unique architectural features. The partially exposed edges provide endless design opportunities and are often paired with wood decking or stonework. The varied elevations create beautiful visual interest, making your pool an even more stunning focal point in any space.

Construction

Because the pool is only partially recessed into the ground, semi-in-ground modular pools require much less excavation work. This reduces the amount of grading, soil removal, and structural reinforcement needed during construction.

Benefits

Semi-in-ground modular pools offer a built-in appearance, often at a more budget-friendly price and faster construction timeline. Because they require less excavation, they are also usually more practical for challenging installation sites with sloped or uneven terrain.

How In-Ground Modular Pool Installation Works

A partially in ground modular pool with stone exterior, installed in a small backyard space next to a round outdoor sauna

At Creative Energy, we are partnered with a vetted network of licensed local contractors that specialize in modular pool installation projects. When you purchase one of our Endless Pools modular pool systems, you also get turnkey installation and general contractor services for a smoother, more efficient build process.

From your initial consultation to the final installation, your team will manage every aspect of the project for you, including:

  • Pool customizations
  • Permits and approvals
  • Site prep and construction
  • Subcontractor management
  • Electrical and plumbing work
  • Planning, delivery, and installation
  • Pool assembly, installation, and finishing work

Below, we take a closer look at how in-ground modular pool installation works from start to finish:

1. Site Evaluation and Planning

Every successful in-ground modular pool installation project starts with careful site planning. The installation team will develop a full project scope and construction plan, including any required site prep and finishing work.

Before installation begins, your team will also get any required permits for the project. In many areas, modular pools installed in-ground are classified similarly to traditional swimming pools.

Permit requirements can vary depending on your local municipality, which is why working with an experienced modular pool installation team is important.

2. Excavation and Preparation

Once the installation plan is approved and finalized, the team gets the site ready. They will clear and prep the area, and then excavation can begin.

During excavation, a hole is dug to the exact depth and dimensions set according to the design. This creates the perfect space for your modular pool to be installed. For fully in-ground pools, this stage involves more extensive preparation to achieve the correct depth and footprint needed for flush, ground-level installation.

Once excavation is complete, the area is carefully leveled and compacted to create a stable foundation for your modular pool system.

3. Assembly and Installation

When your modular pool components are delivered, your installation team will assemble them on-site. After the panels are assembled and secured into the final pool shape, the structure is sealed, and the interior liner is installed.

From there, your team will connect all required systems, including plumbing, filtration, pumps, heating, electrical, and any other features included in the pool design.

Finally, the build team will complete the surrounding work needed to stabilize the installation, ensuring your pool is secure, properly supported, and ready for long-term performance.

4. Finishing Touches

Once your modular pool is fully installed, the surrounding space is finished to complete the project.

Depending on your design, finishing work can include:

  • Decking and coping around the pool perimeter
  • Exterior cladding for semi-in-ground installations
  • Landscaping, lighting, walkways and other features

The exact scope of finishing work depends on your design, site conditions, and how your pool is incorporated with the surrounding space. From the beginning, your team will work with you to plan these details, so everything comes together seamlessly in the final result.

Build Your Dream Modular Pool with Creative Energy

An in-ground modular pool brings you the look of a traditional pool with more efficient, cost-effective installation. Whether you’re working with a compact yard, sloped lot, or specific design vision, there’s an installation approach that can make it work.

At Creative Energy, we help homeowners across the San Francisco Bay Area design and build modular pools that work with their exact space, vision, and lifestyle. With a wide selection of Endless Pools models to choose from, our expert team can help you find the best configuration for your needs and budget. If you can dream it, we can build it.

Ready to bring your vision to life? Contact us to schedule a modular pool consultation, or stop by one of our award-winning showrooms to browse our offerings in person.