You’re standing in your backyard on a hot California afternoon, imagining a pool. Maybe you’ve saved images of infinity edges and dramatic waterfalls. Maybe you’ve sketched rough dimensions on graph paper.
But here’s what most homeowners don’t realize when they first reach out to a pool contractor: the pool you think you want isn’t always the pool you’ll actually use.
Take the family who contacted Century Pools wanting a deep-end pool with a dramatic waterfall. They had the vision. They had the budget. But when asked how they’d actually use the space, the answer changed everything.
Most of their time would be spent with young kids playing and adults lounging. The design shifted to include a shallow Cabo shelf and a scaled-back deep end. That change transformed how they used the pool—the kids had a safe play area, adults could relax comfortably, and the family ended up enjoying the space far more than they ever imagined.
That’s the difference between building a pool and building your pool.
This guide walks you through the entire process of planning, designing, and building a custom gunite pool—from initial concept to final installation. You’ll learn what to expect at each stage, what decisions matter most, and how to avoid the mistakes that cost time, money, and long-term enjoyment.
Understanding What Makes Gunite the Gold Standard
Before you dig the first shovelful of dirt, you need to understand what you’re building.
Gunite is a wet concrete mixture sprayed over reinforced steel to form your pool shell. It’s not the same as poured concrete or prefabricated fiberglass. The difference matters.
Gunite achieves compressive strengths of 6,000 to 7,500 psi—significantly higher than standard poured concrete. That strength allows the shell to resist cracking and shifting, even in challenging soil conditions common throughout California’s varied terrain.
The real advantage? Design flexibility.
Gunite molds to any shape, curve, or depth you can imagine. Want a Cabo shelf that wraps around a corner? A gradual slope from shallow to deep? An irregular perimeter that follows your property line? Gunite makes it possible.
With proper care, gunite pools last 30-50+ years. That longevity far exceeds other pool types and makes gunite a premium long-term investment for homeowners.
The Questions That Shape Your Pool Design
When you describe your “dream pool,” most contractors nod and start sketching. The good ones ask questions first.
Who will use the pool most—kids, adults, or both?
This single question changes everything. A pool designed for lap swimming looks nothing like a pool designed for young children. A pool built for entertaining differs dramatically from one meant for quiet relaxation.
Here are the questions that guide the entire design process:
- Will you use it for entertaining, exercise, or casual relaxation?
- How often do you see yourself hosting friends or family?
- Are there safety or accessibility considerations to account for?
- What’s your realistic maintenance commitment?
- How does the pool fit into your broader backyard vision?
These questions uncover daily habits and lifestyle patterns. They help you see that a pool’s functionality—depths, shelves, entry points, and circulation—matters as much as aesthetics.
You’re not designing for Instagram. You’re designing for Tuesday afternoons in July.
The Three Property Factors That Change Everything
During the site assessment, experienced contractors look for things you can’t see in photos or sketches.
Soil Stability and Drainage
Unstable soil or poor runoff dictates shell structure, placement, and reinforcement. This isn’t theoretical.
Century Pools once excavated a backyard where everything looked level on paper. During digging, they uncovered pockets of expansive clay that could have caused the pool shell to shift over time.
Expansive clay soils expand when wet and shrink when dry. That movement stresses the pool structure and causes fractures. The solution? Reinforcing the foundation, adjusting the grading, and improving drainage in that area.
It added time and cost. But it prevented structural problems that would have been exponentially more expensive to fix later.
Soil properties can vary dramatically even within the same area. The design approach used on an adjacent site may not work for your pool.
💡 Tip: If groundwater sits higher than the lowest point of your pool structure, it will exert buoyant forces on the shell. An empty pool can literally float out of the ground without proper engineering.
Sun Exposure Throughout the Day
How sunlight moves across your yard affects where shallow lounging areas or Baja shelves should go. It even impacts how the pool water feels at different times of day.
Morning sun in one corner means that’s where the water warms first. Afternoon shade in another section creates a naturally cooler retreat. These patterns influence pool orientation and feature placement.
Existing Landscaping and Slope
Trees, retaining walls, and uneven terrain influence pool orientation, access, and integration with patios or decks.
That mature oak tree provides beautiful shade—but its root system extends far beyond the canopy. The retaining wall looks solid—but it changes drainage patterns and may need reinforcement.
Understanding these invisible elements upfront ensures your pool is functional, safe, and long-lasting.
What Happens During Gunite Application
This is one of the most critical phases of pool construction. You’ll know it’s happening because you’ll hear it.
The crew sprays wet concrete mixture over the reinforced steel framework to form the pool shell. You’ll hear the steady roar of the hose. You’ll see the team carefully shaping walls, corners, and curves in real time.
It’s messy. It’s loud. And it’s the moment when your pool truly starts to take its permanent shape.
What you’re watching isn’t just about speed or appearance—it’s about creating a solid, uniform shell that will last for decades.
The thickness, evenness, and compaction of the gunite prevent cracks or structural issues down the road. The crew watches for thin spots, areas where the mixture doesn’t bond properly, and inconsistent coverage.
Then comes the part most homeowners don’t think about: curing.
Why Patience During Curing Protects Your Investment
The biggest mistake homeowners make during the curing period is rushing.
You want to fill the pool. You want to install water features. You want to start using it before the concrete has fully set.
Here’s why that’s a problem.
Curing is when gunite gains its true strength and durability. The critical 28-day curing period is when the shell develops full strength. During this time, the shell must be kept wet for 7-10 days to help the gunite cure to its highest psi.
Skip or shorten this period and you risk cracks, uneven surfaces, or long-term structural issues that are expensive to fix.
Think of it like letting fine wine age. A few extra weeks of patience may feel inconvenient, but it ensures the investment you’ve made lasts for decades. All the careful planning and construction work pays off in a pool that performs beautifully over time.
Choosing Your Pebble Finish (Beyond Color)
You’re standing there looking at samples. The colors are beautiful—rich blues, warm tans, deep grays.
Color is the first thing homeowners notice. But it’s not what matters most five years down the road.
What Actually Matters Long-Term
Durability. A high-quality pebble finish maintains its color under California’s strong sun. It resists staining from minerals or chemicals. It provides a slip-resistant surface for safety.
With proper care, a high-quality pebble finish can maintain its beauty and functionality for over two decades, often even three. Pebble finishes last 15-25 years—nearly triple the lifespan of plaster.
Installation technique. How the pebble is troweled, the thickness, and proper curing all impact how it performs over time.
When the crew applies pebble finish, they watch for even coverage, consistent thickness, and proper embedding of pebbles into the base material. They trowel carefully to avoid thin spots or areas where pebbles aren’t fully bonded.
Those are the spots that chip, peel, or discolor over time.
Curing is equally critical. If the finish dries too quickly or unevenly, it develops hairline cracks or loses color vibrancy.
The difference between an okay application and one that still looks pristine a decade later comes down to precision, patience, and making sure every step is done correctly.
Design Elements That Enhance Both Form and Function
Certain features show up in pool designs year after year because they work.
Cabo Shelves (Baja Shelves)
These long, elongated steps with shallow depth are among the most requested additions. They accommodate lounge chairs, provide safe play areas for children, and create spaces where adults can relax in a few inches of water.
They’re tailored in size, depth, and edge treatment for maximum functionality. Some wrap around corners. Some span the entire width of the pool. Some include built-in umbrella holders or drink ledges.
Beach Entries
A gradual slope from zero depth mimics a natural beach. It’s easier on knees and joints. It’s safer for young children and elderly family members. It creates a visual softness that contrasts with traditional pool edges.
Integrated Spas
When designed as part of the original pool construction, spas share plumbing and equipment with the main pool. This integration reduces costs and creates a cohesive aesthetic.
The spa can sit at pool level, raised above it, or tucked into a corner. Water can spill from the spa into the pool, creating a waterfall effect without the maintenance headaches of standalone water features.
Modern Features That Enhance Usability and Reduce Costs
Technology in pool construction has evolved dramatically. The right equipment choices made during construction save money for decades.
Variable-Speed Pumps
These pumps can cut energy use by up to 80% compared to traditional single-speed pool pumps. That translates directly to lower electric bills month after month.
In 2026, energy-efficient equipment and smart automation are becoming standard rather than luxury features.
LED Lighting Systems
Modern LED pool lights use a fraction of the energy of older halogen systems. They last longer, produce less heat, and offer color-changing options controlled from your phone.
Proper lighting placement during construction matters. You can’t easily add lights later without significant expense and disruption.
Automated Chemical Systems
These systems monitor water chemistry and adjust chlorine and pH levels automatically. They reduce the time you spend testing and balancing water. They prevent the algae blooms and cloudy water that result from inconsistent maintenance.
Smart Controls
Control pumps, heaters, lights, and water features from your phone. Set schedules. Monitor energy usage. Adjust settings before you get home.
The infrastructure for these systems needs to be installed during construction. Retrofitting is possible but expensive.
The Construction Timeline You Should Expect
Building a custom gunite pool typically spans three to six months from breaking ground to your first swim.
Here’s what happens during that time:
Weeks 1-2: Design Finalization and Permitting
Final plans are submitted. Permits are secured. Underground utilities are marked. The site is prepared for excavation.
Week 3: Excavation
Heavy equipment removes soil to create the pool cavity. The excavation reveals actual soil conditions. Adjustments are made if unexpected issues appear.
Week 4: Steel Installation
Rebar is bent, cut, and tied to create the reinforcement framework. This steel skeleton gives the gunite shell its structural integrity.
Week 5: Plumbing and Electrical Rough-In
All pipes, drains, and electrical conduits are installed before gunite is applied. Once the shell is in place, these systems are locked in position.
Week 6: Gunite Application
The shell is sprayed in a single day. Then begins the critical 28-day curing period.
Weeks 7-10: Curing and Tile Work
The shell cures while tile, coping, and decking are installed. These elements frame the pool and integrate it with surrounding hardscape.
Weeks 11-12: Pebble Finish and Equipment Installation
The interior surface is applied. Pumps, filters, heaters, and automation systems are installed and tested.
Week 13+: Startup and Landscaping
The pool is filled, balanced, and prepared for use. Landscaping is completed to integrate the pool with your backyard.
⚠️ Important: Weather, permit delays, and material availability can extend this timeline. Build buffer time into your expectations.
Integrating Your Pool with Outdoor Living Spaces
Your pool doesn’t exist in isolation. It’s part of a broader outdoor living environment.
Decking Materials
Concrete, pavers, natural stone, and composite materials each offer different aesthetics, textures, and maintenance requirements. The right choice depends on your climate, budget, and design vision.
Consider how the surface feels underfoot when wet. Consider how it absorbs and radiates heat. Consider how it ages and weathers over time.
Shade Structures
Pergolas, shade sails, and covered patios extend the usability of your pool area. They provide relief from California’s intense summer sun. They create defined zones for different activities.
Outdoor Kitchens and Fire Features
These elements transform your pool area from a place to swim into a place to live. Plan for utilities—gas lines, electrical outlets, water connections—during pool construction to avoid expensive retrofits later.
Setting Up Your Pool for Long-Term Success
The decisions you make during construction determine how much time and money you’ll spend on maintenance for decades.
Equipment Quality Matters
Cheap pumps fail sooner. Undersized filters struggle to keep water clear. Low-quality heaters cost more to operate and break down more frequently.
Invest in quality equipment during construction. The upfront cost difference is minor compared to replacement costs and lost enjoyment.
Proper Circulation Design
Dead spots in circulation lead to algae growth and cloudy water. Proper placement of returns and drains during construction prevents these problems.
Chemical Balance Systems
Understanding pH, alkalinity, and sanitizer levels keeps your water safe and comfortable. Automated systems simplify this process, but you still need to understand the basics.
Regular Professional Service
Weekly or bi-weekly service catches small problems before they become expensive repairs. Professional technicians spot equipment issues, water chemistry imbalances, and structural concerns early.
What Sets Century Pools Apart
Century Pools has been building custom gunite pools since 1964. That’s 60 years of residential pool construction experience passed down through three generations of the O’Neal family.
Founder Brian O’Neal started the company with a shovel in hand and a commitment to quality craftsmanship. His three sons—Michael, Patrick, and Casey—continue that legacy today, supported by second-generation family members.
Being a multigenerational pool contractor isn’t just about longevity. It’s about building lasting relationships based on trust and shared dreams.
Every pool is a treasured meeting place where memories are made, family events are held, and new beginnings are celebrated. That’s why Century Pools carefully injects personalized experience into every project.
From celebrity mansions to local neighborhood hangouts, the focus remains the same: building client trust, providing exceptional craftsmanship, and staying on the forefront of custom pool innovation.
Your Next Steps
Building a custom gunite pool is a significant investment. The process takes months. The decisions are complex.
But when done right, you create a space your family cherishes for generations.
Start by clarifying how you’ll actually use the pool. Be honest about your lifestyle, maintenance commitment, and budget. Find a contractor with deep experience in residential gunite construction.
Ask questions. Understand the process. Make informed decisions at each stage.
Your pool should be more than beautiful. It should be perfectly suited to the way your family actually lives.
That’s the difference between building a pool and building your backyard retreat.
