Catherine Dufour
Martin and his son did an excellent job on our fireplace, went above and beyond what was asked of them, and provided us with valuable advice, all within very reasonable and reliable timeframes.
FeaturedConcrete & Masonry Contractors in Gatineau, Quebec
Maçonnerie 3MAG
Maçonnerie 3MAG
Maçonnerie 3MAG is a general contractor specializing in masonry and home transformations for residential and commercial clients. Based in Gatineau, it serves the Gatineau and Ottawa region; the company says its founder has worked in construction since 1999.
Last Updated October 3, 2026.
Business Highlights
- Maçonnerie 3MAG is a family business.
- Its founder has worked in construction since 1999.
- It says it uses first-quality materials and provides impeccable installation for exterior brick work.
Service Area
Gatineau and Ottawa.
Featured Local Business
Maçonnerie 3MAG is one of 7 concrete & masonry contractors ProsGrade lists in Gatineau, Quebec.
Featured
Featured on ProsGrade
Listing details
6 services listed, including Masonry, Exterior cladding and Doors and windows. Open 7 days a week. Rated 5.0 from 28 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How Maçonnerie 3MAG compares with the other 6 concrete & masonry contractors on ProsGrade in Gatineau, using public Google ratings and review counts.
- Ranks in the top half of the 7 Gatineau concrete & masonry contractors on ProsGrade by Google rating and review volume.
- Rated 5.0 on Google, at or above the 4.8 average of other Gatineau concrete & masonry contractors on ProsGrade.
- One of 5 Gatineau concrete & masonry contractors on ProsGrade rated 4.7 or higher from at least 10 reviews.
Services Covered
6 services- Masonry
- Exterior cladding
- Doors and windows
- Exterior brick and stone
- Chimney workConstruction and repair
- Fireplace workIndoor and outdoor; construction and repair
Reviews
What customers say
Reviewers describe the team as professional and trustworthy, and praise Martin's helpful advice; one customer also valued his explanations and answers to questions. Another customer says Martin and his son went beyond the requested fireplace work, completing it within reasonable, reliable timeframes.
Customer Reviews
Jennifer Chabot
An extraordinary company: professional, kind, attentive, trustworthy, and efficient. The best company in Gatineau; I highly recommend them.
Alexandre Daigle
Exceptional and trustworthy services by Martin and his sons. Very good work, clean job, helpful and easy to deal with. More than fair price wise. Will call them again for future project.
Yann Plouffe
Very satisfied with the work done by the 3MAG team. Martin takes the time to explain what he's doing, answer your questions, and give you advice. I recommend them.
Bérubé Lise
What can I say... a dynamic, competent, meticulous, and truly professional team. I recommend 3mag Masonry without hesitation for your projects. Thank you Martin, Gabriel, and Miguel for everything.
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Frequently Asked Questions
How does Maçonnerie 3MAG approach estimates and budgets?
The company says a project begins after a precise, complete estimate and that it respects the budget throughout design and construction.
What does Maçonnerie 3MAG say about job-site safety?
It describes safety as a priority during site meetings and daily inspections.
How does Maçonnerie 3MAG handle project timelines?
It says it completes projects within established timelines.