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Thank you Mammoth Masonry! My new chimney cap is built to code and will last a lifetime. If you’re looking for professionals do not hesitate to give these guys a call.
FeaturedConcrete & Masonry Contractors in Barrie, Ontario
Mammoth Masonry
Mammoth Masonry
Mammoth Masonry is a masonry contractor based in Barrie, serving Simcoe County, Southern Georgian Bay and Muskoka. It handles new masonry construction, restoration and repairs, including custom fireplaces.
Last Updated October 3, 2026.
Business Highlights
- Mammoth Masonry is family-owned and operated.
- Mammoth Masonry is led by a Red Seal mason.
- Mammoth Masonry says it is WSIB-covered and business-insured.
Service Area
Simcoe County, Southern Georgian Bay and Muskoka.
Featured Local Business
Mammoth Masonry is one of 9 concrete & masonry contractors ProsGrade lists in Barrie, Ontario.
Featured
Featured on ProsGrade
Listing details
12 services listed, including Brick masonry, Stone masonry and Block work. Open Monday to Saturday. Rated 5.0 from 37 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How Mammoth Masonry compares with the other 8 concrete & masonry contractors on ProsGrade in Barrie, using public Google ratings and review counts.
- Ranks in the top quarter of the 9 Barrie concrete & masonry contractors on ProsGrade by Google rating and review volume.
- Rated 5.0 on Google, at or above the 4.9 average of other Barrie concrete & masonry contractors on ProsGrade.
- Has more Google reviews (37) than 6 of the 8 other Barrie concrete & masonry contractors on ProsGrade.
- One of 5 Barrie concrete & masonry contractors on ProsGrade rated 4.7 or higher from at least 10 reviews.
Services Covered
12 services- Brick masonryDecorative and ornamental bonds
- Stone masonryNatural stone for custom homes
- Block workStructural blockwork
- Thin veneer
- Brick repairSpalling brick repairs
- Masonry insurance restorationAssessment, repair and reconstruction of brick, block and stone
- Chimney repairCap replacement through full teardown and rebuild
- Custom fireplacesRumford and Isokern systems
- Flagstone patios and pool decks
- Concrete cuttingEgress-window openings, doorways and overpour corrections
- Foundation pargingParging deteriorated concrete; basement re-waterproofing
- Window sill repairDamaged, deteriorating or spalling sills
Reviews
What customers say
Customers describe professional service and skilled work. One customer described Mammoth Masonry transforming an existing stone fireplace built by their father into a double-sided feature, with the stone, mortar and hearth closely matched.
Customer Reviews
David Mantyla
I got Ethan and his team to cut openings and rework the brickwork to facilitate new windows in my basement. They came early and prepared. With masonry work you often get what you pay for. Super happy with the results and glad I hired them. It looks like the house was built with the new windows.
Lisa Sturdy
We are so pleased with the level of professionalism and skill demonstrated by Mammoth Masonry.
They were able to make my dream come true by taking an existing stone fireplace built by my father and transforming it into a double sided fireplace that we have been able to enjoy time and time again.
Matching the stone, mortar and hearth impeccably. We highly recommend!!
Jesse Deer
I would highly recommend this company! They helped me restore a large concrete porch at the front of my house. They were punctual, very fair in their pricing (compared to other quotes I received), and their work was top-notch.
2024 Update: After getting a new house, I used Ethan a second time. I had a leak going from a wall where old brick was place at the corner of my house into my basement. Again, Ethan was amazing and fixed the problem quickly. Removing the old damaged brick and replacing it with concrete looks much cleaner too. Glad I went with a professional who has his red seal. I would 100% recommend - The only Mason I will use in the Barrie area moving forward.
Helen Burch
Mammoth Masonry just completed a floor to ceiling stone fireplace in our living room. We absolutely love the work they have done, it has changed the whole room.
Ethan and the rest of Mammoth Masonry are excellent to deal with; they are the most professional, respectful and personable crew we have ever met. During the process, which took about 4 days to complete, they checked in with us regularly to ensure we were all on the same page. A huge plus! They showed us how the stone would look and the grouting style and colour. Another plus was how clean they kept our living room and the outside where stone cutting took place.
We would highly recommend this company for any masonry work. We were so impressed with them and their results.
Thank you Ethan and crew.
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Frequently Asked Questions
How does Mammoth Masonry handle insurance restoration?
For fire, water, severe weather or other insured damage, Mammoth Masonry provides masonry repair and reconstruction and coordinates with insurance contractors and adjusters to meet local building codes and insurer requirements.