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GEM Masonry describes its work on its website as "Transforming Norwalk's landscapes one brick at a time," and lists a service area that includes Wilton, Weston, New Canaan, Greenwich, Stamford, Darien, Westport and Fairfield. On Angi, the company describes itself as having more than 15 years of experience. A 2025 customer said Gustavo made their patio just like they wanted. A 2024 customer said GEM Masonry repaired the crown and top layers of their chimney and repointed the whole thing; that 2024 customer also called Gustavo a very honest person. A 2023 customer said Gustavo and team tore down a brick wall and rebuilt it, and that they were always kept in the loop at the different stages of the project. A 2023 customer wrote that they hired G.E.M. Masonry to extend their stone wall to an existing 50-year-old one after their regular mason canceled three appointments. That 2023 customer said the workers arrived on time, worked late and were very polite, and that Gustavo and his crew cleaned up at the end of the day. A 2023 customer said the brick work matched their existing brick sidewalk and came at a fair price. A recent Angi customer said they hired Gustavo four months before writing to fix a foundation crack; he kept saying he would come, never did, and the customer now has more water damage. Connecticut lists its home improvement contractor registration, HIC.0669919, as active, held by Gem Masonry LLC.
Hired Gustavo 4 months ago and he continually told me he would come to fix the foundation crack. Never came and now I have more water damage. Would not recommend.
I'm more than happy to recommend Gustavo for making my patio just like I wanted. He is very professional and kind. As a home owner I feel so thankful with him and his team for making this project very professional.
GEM Masonry just repaired the crown and top layers of my chimney and repointed the whole thing. They did a fantastic job and were very professional. Gustavo is a very honest person which is incredibly important to me when someone is working on my house. They will be the first company I call the next time I need any masonry work done.
Gustavo and team did a phenomenal job tearing down a brick wall and rebuilding it. They were profesional, friendly, and clean. We were always kept in the loop at the different stages of the project. Fair price, great results - Highly recommend!
My husband and I contracted with G.E.M. Masonry to extend our stone wall to an existing 50-year-old one after our regular mason canceled three appointments. GE.M. workers arrived on time, worked late and were very polite. At the end of the day, Gustavo and his crew cleaned up beautifully.We tipped the workers every day and liked them so much that they asked Gustavo to repair our walkway that a delivery man's truck damaged last year. HIGHLY RECOMMEND.
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1 change recorded — last scanned Oct 13, 2026.
Hired back for waterproofing, walkway and wall jobs5.0
Full exterior chimney rebuilds4.9
Sinking patio stones traced to leveling and fixed in a redesign4.7
Venting problem found: concrete blocking the chimney4.7
BBB A+Not yet rated
State-verified Home Improvement Contractor license since 20223.3
Old chimney taken down and rebuilt3.9
Driveway torn out and repaved in two days3.8