
For over 30 years, The Omega Group has been creating architectural statement pieces for both residential and commercial spaces. Our expertise in cast stone mantels is backed by decades of an unwavering commitment to quality. crafted with precision, beauty, and durability in mind. When you choose Omega, you’re not choosing imitation stone, you’re choosing cast stone in its purest form, custom crafted architectural details for your home or project.
But what exactly is cast stone, and why is Omega’s approach different? Let’s take a closer look.
The History of Cast Stone
Cast stone has been used in architecture for centuries, valued for its ability to replicate the elegance of natural cut stone while allowing for more design flexibility. Cast stone dates back with early versions used in European architecture to mimic carved limestone and marble at a more practical cost. It was popular in grand estates, government buildings, and ornate public spaces. Many “stone” fireplaces seen in film sets are actually cast stone, chosen because it’s easier to mold into the director’s desired style.
Common Industry Practices
Traditionally, cast stone is made by combining crushed stone aggregates with binders. Because it’s molded, cast stone can achieve shapes, details, and sizes that would be cost-prohibitive or impractical to carve from solid stone. This makes it perfect for custom fireplace mantels, overmantels, and architectural trim by being molded into architectural shapes suitable for both indoor and outdoor fireplaces. It can resist cracking, fading, and weathering when properly maintained.
In the broader modern industry, it’s common for some manufacturers to use synthetic resins, plastics, or adhesives to lower production costs or speed up manufacturing.

At Omega, we take a different approach, while these additives can make cast stone easier to produce, they often reduce heat resistance and longevity making them less ideal for applications around active fireplaces. Every mantel we make starts its life as part of a meticulously blended mixture made in small batches, perfected over years of research. From its ability to withstand high heat and lightweight yet strong composition, our mantels are designed for real-world performance without compromising on elegance. Weighing just 8–10 pounds per square foot, our mantels are easier to handle, and install, requiring no extra floor reinforcements to support it’s weight. Designed to endure the demands of shipping and handling, our mantels arrive in pristine condition, installation-ready.
The result? A mantel that exceeds expectations, delivering timeless style, lasting strength, and performance that stands the test of time.

The Omega Advantage
- Lightweight Strength – Our mantels weigh just 8–10 pounds per square foot, making them easier to handle, ship, and install without requiring floor reinforcement.
- Heat Resistance – Engineered for active fireplace use, our mantels stay beautiful and safe, even under high temperatures.
- Durability in Transit – Designed to withstand the demands of shipping, each piece arrives in pristine, installation-ready condition.
- Architectural Precision – Crisp edges, smooth surfaces, and intricate detailing, all crafted to reflect your design vision.
Ready to Elevate Your Fireplace?
Whether you’re a homeowner dreaming of a one-of-a-kind focal point or a designer seeking a reliable, luxury product for your clients, Omega cast stone mantels offer the perfect blend of beauty, craftsmanship, and performance.
Explore our collections, request a quote, or speak with our design team to bring your vision to life.