Lopez’s Masonry and Concrete

Lopez’s Masonry and Concrete is a Waltham masonry and concrete contractor, and a 2026 customer said Carlos and his team repaired retaining walls and a sidewalk and completed a roof power wash, delivering exactly what he promised. The company describes itself on its website as a full-service masonry and concrete contractor offering brick, paving, driveway, retaining wall, stairs, walkway, chimney and concrete repair work plus snow removal, and says it has 15 years of experience. On Google it holds 4.9 stars from 97 ratings, and its BBB grade is A+. A 2026 customer whose garage floor and foundation were crumbling said Carlos suggested pavers instead of concrete floors that are prone to cracking in New England, and that the footings were repaired. In a 2026 review, a different customer wrote that Lopez repaired their concrete steps in 2025, some cracks appeared during the winter, and after they reached out Lopez did further repairs. A 2026 reviewer described a six-day project in Newton replacing an old concrete garage apron with stone, building a retaining wall and lining the driveway with cobblestones. A 2026 customer wrote that the company replaced concrete steps for an apartment building in Brookline. A 2024 customer whose front steps and porch landing were redone in brick and bluestone said Carlos discovered problems with their previous rebuild during the early work and did the necessary repairs without adding to his estimate. A 2024 customer said Carlos quoted a 14x14-foot patio at about five days, and they showed up on the set date and completed it within the agreed time. A 2023 customer whose back brick steps were crumbling said Carlos came by the next morning, the rebuild was completed in one day, and the final bill was the same as the original estimate. A 2025 customer said the company repaired crumbling mortar on their chimney and saved them money by repairing the old cap. A 2025 customer said the price was the best of four estimates they got. In a 2025 review, a customer said the company guaranteed its work and came back to repair damage from the winter freeze. In a 2022 review, a customer said cement stucco the company applied to their front stairs and front retaining wall started to crack and chip off a few months later; Carlos sent his men to patch it, more chipped off, and when contacted again his reply was, "I guess you need a new wall then." A 2021 customer said the company was very slow to respond and pushed the appointment back several times. A 2021 reviewer wrote, "Don’t believe they are fuller insured. Be sure to ask."