Custom Cast Stone Fireplace Mantels

Our Fireplace Mantel Services

Cast stone mantels and plaster fireplace surrounds are elegant interior additions that we can customize to fit various architectural and style preferences. Explore the full extent of our fireplace mantel services here:

Custom cast stone fireplace mantel designed by AM Group Studio

Custom Cast Stone Fireplace Mantels

Design your cast stone fireplace mantel to suit a modern, classic, minimalistic, or traditional style. We perform in-house fabrication, easing the customization process with improved quality-control and efficiency.

Custom cast stone fireplace surround with detailed mantel design

Custom Plaster Fireplace Surrounds

We use a specialized heat-resistant plaster containing vermiculite to create cast stone surrounds and mantel elements. For the hearth and the areas directly around the firebox, we recommend natural stone or tile, where temperatures are highest.

Cream cast stone fireplace mantel and overmantel installation

Fireplace Mantel Refacing and Upgrades

In addition to restorations, we specialize in custom cast stone and plaster mantel refacing and updating. We upgrade outdated surrounds with refined detailing without the cost of a full rebuild.

Custom fireplace mantel renovation and refacing design elevation

Fireplace Mantel Design Integration and 3D Visualization

Our team creates 3D renderings and conceptual layouts, allowing you to see your fireplace design in the context of a specific room before it’s even built.

fireplace mantel straight on close

Cast Stone, Limestone, And Wood Mantels

Quarrying limestone gets you solid natural stone, though every piece is heavy, the colour and veining shift from slab to slab, and cutting and setting it takes more labour on site. We shape your cast stone mantel in a mould instead, setting the profile, size and colour before production starts, so it weighs less than limestone, installs more easily, and usually costs less while keeping that same natural stone look.

We build a cast stone fireplace surround as one design, with the legs, shelf, and overmantel together, instead of the wood shelf many Toronto fireplace mantels use in oak, pine, or maple. A wood shelf on its own gives you a top ledge and little else, and it still has to sit a set distance above the firebox, which limits how low and how deep it can go.

If weight is your main concern, a carved plaster surround gives you the lighter option. See custom plaster fireplace surrounds above.

Mantels We Build

Every custom fireplace mantel we create starts with your room, your ceiling height and your style. These three cast stone projects show the range, from clean modern lines to full traditional ornament, and each project page has more photos of the finished work.

Trusted by Homeowners Across Toronto & the GTA

We’ve made our mark as artisans, adding lasting elegance to homes from Hamilton to Barrie. We make and uphold a promise that every project will be unique to you and your home. There’s no one more experienced or dedicated to helping restore your home’s beauty. In addition to our own assurance, you can explore the testimonials of our previous clients. 

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Amazing jon with best price and most important on time with best quality. I was happy and finish job was perfect Many thanks and recommend for who are looking for good quality and beautiful job
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Arash Ardforoush
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Sam and Norberto are awesome. Sam is kind, professional and caring. Luckily we were able to find a perfect match to extend our previous moulding from 9 years ago. so we did not need his services for a match. Sam still drove a long way in bad conditions to meet us and recommend an installer. Norberto, his installer didn’t just install mouldings but restored them, blending new and old designs with the skill of an artist. He is super knowledgeable and professional. He identified an issue with our wall and came up with the perfect solution. We would highly recommend this team!
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Holly Henderson
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I just wanted to thank you guys for building such a beautiful mantle. We absolutely love it.
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Doris Quispe
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excellent service and prompt call back from Liela and great to talk to Sam about our fireplace plans...
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Brad Balsor
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Old fireplace removed and new one installed. They were very professional and respected our house. Love the new one.
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Troy Nobes
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Excellent experience from start to finish. I needed 12 feet of new plaster crown moulding to match my existing crown. From my first enquiry, the company (Daniella) was always extremely quick to respond and happy to answer all my questions. They came to make a template of my existing crown and then returned to install. The whole process took under two weeks. I am so pleased with the work. The crown matches perfectly and was installed beautifully! I was so impressed with their customer service that I didn’t even look for a second quote. Although I have nothing to compare the cost to, I feel it was very reasonable. Thank you AM Group for making this experience so seamless and stress free!
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Linda Azzopardi
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Don’t waste your time going to other fireplace stores! Just go directly to AM Group Studio! They are really great people, superb service and really helpful especially Daniella. She will help and guide you from the very start of your fireplace renovation. She is the best!! Call and ask for her!!
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Why Choose AM Group Studio for Cast Stone Mantels

AM Group Studio provides customer-centric care with limitless design and customization options. We use high-quality materials and always guarantee client happiness. Choose us because:

25+ Years of Experience

Our passion, dedication, and ability are proven through our 25+ years of success in remaining a reliable custom mantel installer.

Custom Proportional Mantel Design

We’re experts at proportional design, guaranteeing your mantel fits the exact scale of your room’s ceiling height and wall width.

Plaster and Cast Stone Expertise

We’re a family-owned operation with over a quarter of a century in the industry. Our expertise continues to advance with every project we complete.

In-House Fabrication and Installation

Fabrication and installation and performed under one roof. No missteps or miscommunications with design or efficiency. One company, one smooth process.

The cost of a cast stone fireplace varies based on project-specifics. Pricing depends heavily on customization and sizing. If you’re interested in our cast stone mantel services, contact us to book a consultation.

Following our meeting, we can provide a more accurate estimate.

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How A Cast Stone Mantel Is Made

Building a cast stone fireplace mantel for your Toronto home takes five steps, and nothing gets built until you approve the design. Here’s what happens from your first visit with our team to the final walkthrough.

01

Site Visit and Measurements

We visit your property, measure the opening, wall width and ceiling height, and check the existing fireplace.

02

Finish Sample

You review a cast stone sample for colour, texture and finish, and sign off on it before we move forward with the design.

03

3D Layout

When your project calls for it, a 3D layout shows the mantel in your room so you can judge its scale.

04

Fabrication in the Shop

After you approve the design, we make the mantel in our own facility. You get the timeframe before production begins.

05

Installation

Our team sets the mantel at your property. We can include patching and painting where needed, and we finish with a final walkthrough.

Custom stone fireplace mantel with integrated architectural design

Cast Stone Fireplace Mantel FAQs

The appearance, weight, and materials differ between cast stone and plaster mantels. Cast stone is concrete/aggregate-based and has a heavier weight, while plaster is gypsum/lime-based and is lighter than cast stone. Plaster also has a smooth appearance, while cast stone resembles natural stone.

Timelines vary depending on the project scope, customization choices, and dimensions. Book a consultation with AM Group Studio for more information.

Yes, we provide samples, allowing you to review the material quality, texture, colour and finish.

Size and how custom the design is. A larger mantel with more detail takes more work than a simple one, which is what the cost section above walks through. A consultation gets you a more accurate figure.

Cast stone weighs less, which makes it easier to install, and it gives you the look of natural stone with colour and profile set in advance. Limestone varies slab to slab. With either material, the area directly around the firebox stays natural stone or tile.

If your current surround is in sound condition, refacing gives you new detailing without a full rebuild. Replacing it makes more sense when the surround is damaged, out of proportion for the room, or you want a different design altogether. Our team checks the condition and proportions at the site visit, the same approach covered in the refacing and upgrades section above.

Plan Your Custom Fireplace Mantel Design

Start planning your professional cast stone mantel and plaster fireplace surround installation. Contact us with your project specifications today to book a consultation and receive an estimate.