Concrete Pool

A concrete pool is a permanent in-ground pool built with reinforced concrete. The structure is formed by spraying or pouring concrete into a shaped framework, then finishing it with plaster, tile, or pebble surfaces.

Key points:

• Built using gunite or shotcrete concrete for maximum strength.
• Allows full control over the pool’s size, depth, and shape.
• Works well for complex designs such as curved layouts or infinity edges.
• Highly durable and resistant to weather and pool chemicals.
• It can be resurfaced or renovated over time rather than replaced.

Concrete pools take longer to build than fibreglass or vinyl pools, but the result is a long-term investment that can handle frequent use and large water volumes.

Concrete pool shells form the foundation of the pool, giving it strength, shape, and durability. The construction method affects how the pool is built, how long it lasts, and how flexible the design can be. The four main types of concrete pool shells are explained below.

1. Cast Concrete Pools

• Built by pouring concrete into a fixed mould or formwork on site.
• Offers strong structural integrity and watertight performance.
• Ideal for simple, straight-edged pool designs.
• Construction takes longer since each section needs to cure before finishing.
• Requires professional formwork setup and precision during pouring.

Cast concrete pools are traditional but remain popular for their proven strength and long life. Once cured, the shell is finished with plaster, tile, or pebble surfaces.

2. Shotcrete Pools

• Created by spraying wet concrete directly onto a reinforced steel frame.
• Applied using a high-pressure hose for uniform coverage and strong bonding.
• Cures into a dense, watertight shell that resists cracking.
• Common for large or commercial pools.
• Supports curved edges, deep ends, and creative designs.

Shotcrete pools combine strength and flexibility, making them a preferred choice for complex or heavy-duty projects.

3. Gunite Pools

• Built using a dry-mix concrete method, where water is added at the spray nozzle.
• Offers excellent control over texture and density during application.
• Supports freeform designs with smooth curves and varied depths.
• Common for residential and high-end custom pools.
• Delivers a long lifespan with proper maintenance.

Gunite pools are ideal for homeowners who want a completely customized design. The dense shell supports plaster, tile, or pebble finishes that can be refinished over time.

4. Precast Concrete Pools

• Factory-built concrete shells are transported to the site in ready form.
• Faster installation than traditional poured or sprayed methods.
• Quality-controlled production ensures consistent thickness and strength.
• Limited in size and shape due to transport restrictions.
• Perfect for smaller backyards or compact areas.

Precast concrete pools combine speed and strength, offering homeowners a solid concrete structure with a shorter build time and minimal disruption on site.

Each pool shell type has unique advantages:

• Gunite and shotcrete are best for large or custom designs.
• Cast concrete works well for straightforward layouts needing maximum strength.
• Precast concrete suits projects needing quick installation and uniform quality.

The right shell depends on the design, budget, and site conditions.

Concrete pools require regular upkeep to keep the water clean and the surface in good condition. Proper maintenance prevents algae growth, staining, and chemical imbalance.

Main maintenance areas:

• Surface Cleaning: Brush pool walls and floor weekly to prevent algae buildup and calcium deposits.
• Vacuuming: Remove dirt and debris with an automatic or manual pool vacuum.
• Water Balance: Check pH, chlorine, alkalinity, and calcium hardness levels at least twice weekly.
• Filtration: Clean filters regularly for proper circulation and clear water.
• Chemical Treatment: Use sanitizer and shock treatments to keep the water safe.
• Surface Inspection: Watch for cracks or rough patches in plaster or tile and repair as needed.
• Resurfacing: Refinish the pool’s interior every 10–15 years to maintain appearance and waterproofing.

Quick maintenance tips:

• Keep the water level consistent to protect the pump.
• Maintain chlorine between 1–3 ppm.
• Use a pool cover when not in use to reduce debris and evaporation.
• Run the pump for about 8 hours per day during peak swimming months.

Concrete pools can last several decades when properly cared for. Routine cleaning, chemical balance, and resurfacing protect your investment and keep the pool looking new year after year.

The cost of a concrete pool depends on its size, design, finish, and additional features. While concrete pools cost more initially, they provide superior durability and design flexibility.

Typical price range:

• Basic concrete pool: CAD $70,000 – $90,000
• Custom design with features: CAD $90,000 – $130,000
• Luxury or large-scale pools: CAD $130,000 and above

Main cost factors:

• Excavation and site preparation
• Concrete shell and steel reinforcement
• Plumbing and filtration systems
• Interior finish (plaster, pebble, or tile)
• Lighting, heating, and automation systems
• Landscaping and decking

Concrete pools take longer to construct and need more upkeep than fibreglass or vinyl options, but they deliver unmatched strength, customization, and long-term value.