How Long Does It Take to Build an Inground Pool?

An Estimated Timeline from Design to First Swim

Building a custom pool is where backyard dreams start becoming real. It’s the moment your backyard begins evolving into the place where summer memories happen. But before the first cannonball, many homeowners ask the same question: How long does it take to build an inground pool?

In most cases, pool construction takes at least 8–12 weeks once digging begins. The full process from design to completion can take 3–6 months or more. The pool construction timeline includes design planning, permits, construction, inspections, and finishing touches that ensure your pool is built beautifully and built to last.

Let’s walk through what happens from the moment you sign your contract with your pool builder to your very first swim.

Phase 1: Design, Planning, and Permits

Estimated Timeline: 3–8 Weeks

Before pool construction begins, your ideas need to be transformed into a detailed plan. This stage focuses on designing a pool that fits your home, your landscape, and how you want to use the space.

The pool design process usually starts with an initial consultation, where you discuss your budget and overall vision for your backyard retreat.

Next comes a site evaluation, where professionals assess factors such as:

• Yard layout and measurements
• Property lines and easements
• Elevation and grading
• Drainage considerations
• Access for construction equipment

The Pool Design

With these details in hand, the design team begins shaping the pool itself. The pool design process includes decisions about:

• Pool size and shape
• Depth and swim area
• Entry steps or tanning ledges
• Seating areas
• Lighting and water features

Many builders provide 3D design renderings so you can see what the finished pool will look like in your yard. You’ll have the chance to review the design and request revisions until everything feels right.

Once approved, engineers create the technical pool construction plans. These include structural calculations, plumbing layouts, electrical plans, and safety specifications.

What Can Slow This Phase Down

During the design and permitting process, the pool construction timeline can be extended by these factors: 

• Multiple design revisions
• Waiting on finish selections like tile or coping
• HOA approval requirements
• Busy municipal permit offices
• Missing documentation or required revisions

Although it takes time, careful planning ensures the pool is safe, properly engineered, and tailored to your property.

Throughout this phase, you’ll work closely with a dedicated Coastal Pools Design Consultant who will guide you through each step, answer questions, and help you make informed decisions with confidence.

Phase 2: Construction (Breaking Ground to Building Your Deck)

Estimated Timeline: 6–10 Weeks

Once permits are approved, construction begins and your backyard pool starts to take shape. This phase includes the major structural work required to build the pool itself.

Excavation

The first visible step is excavation, when equipment digs the pool’s shape into the yard. Depending on soil conditions and access to the property, excavation usually takes 1 to 2 days.

Steel Reinforcement and Plumbing

Next, crews install a framework of steel rebar throughout the pool structure. This reinforcement provides strength and durability for the concrete shell.

At the same time, plumbers install underground piping for:

• Pool circulation
• Skimmers and returns
• Main drains
• Water features

Concrete Shell Installation

With the steel framework complete, the pool shell is created using shotcrete or gunite. This step forms the permanent structure of the pool.

After installation, the shell must cure for strength, a process that typically takes 7–28 days. Proper curing helps ensure the pool structure remains durable for decades.

Tile and Coping

Next comes the installation of waterline tile and coping, the finished edge that caps the pool perimeter. 

These elements add durability while also defining the pool’s style. Coastal Pools lets you explore a variety of options for these pool finishes. 

Deck Installation

Once the pool structure is complete, crews install the surrounding deck. Depending on the design, this may include:

• Decorative concrete
• Pavers
• Natural stone
• Stamped or textured surfaces

The deck creates space for lounging, entertaining, and soaking up long summer days by the pool.

Equipment and Electrical Installation

During construction, technicians also install the equipment that powers the pool system, including:

• Pumps
• Filters
• Heaters
• Automation systems
• Lighting

Many homeowners choose to enhance their design with additional pool features such as waterfalls, tanning ledges, or integrated lighting.

Inspections Throughout Construction

Local building inspectors typically review the project at several stages to ensure everything meets all required building codes.

What Can Slow Construction Down

Even with careful planning, several factors can influence the inground concrete pool construction timeline, including:

• Weather delays such as heavy rain
• Limited access for equipment
• Rock or unexpected soil conditions
• Underground utilities or debris
• Inspection scheduling
• Material availability
• Custom stone or specialty finishes
• Additional landscaping or hardscape work

An experienced builder manages these challenges while keeping the project moving forward efficiently. If you’d like to see the full step-by-step process, read Coastal Pools’ article on what to expect during pool construction.

Throughout construction, you’ll work with a dedicated Coastal Pools Project Manager who serves as your primary point of contact. They’ll keep you informed on project progress, coordinate each phase of construction, answer questions, and proactively communicate upcoming milestones so you always know what to expect.

Phase 3: Interior Finish and Pool Startup

Estimated Timeline: 1–2 Weeks

The final stage of the pool construction timeline is where everything comes together.

Interior Finish Application

The interior surface—often plaster or pebble—is applied to the pool shell. This finish creates the smooth, waterproof surface that gives the pool its color and texture.

Filling the Pool

Once the finish is installed, it’s time to begin filling the pool with water. Depending on pool size and water pressure, this typically takes 1 to 2 days.

Water Balancing and Equipment Setup

Once the pool is full, technicians carefully balance the water chemistry and test the equipment to ensure everything is operating properly.

Pool Orientation

Before you start swimming, your builder will guide you through the basics of pool ownership, including:

• Equipment operation
• Cleaning and maintenance
• Water care
• Automation controls

At this point, your pool is officially ready to enjoy.

If you’d like inspiration for your backyard design, browse Coastal Pools’ gallery of completed pools.

Ready to Start Your Pool Project?

The inground concrete pool construction timeline depends on several factors, including design choices, permits, and weather. Building a custom pool is an exciting investment that transforms your backyard into a private retreat for relaxing, entertaining, and spending time with family. 

Coastal Pools can guide you through every step—from design to first swim. Schedule your free consultation today.