Beton en metselwerk Services

Spalling is the flaking, chipping, or peeling of a concrete surface that exposes the rough aggregate underneath and worsens quickly once it starts. It is typically caused by freeze-thaw cycles forcing moisture expansion inside the slab, deicing salts accelerating surface breakdown, or poor finishing during the original pour. A concrete mason grinds away the loose material, applies a bonding agent, resurfaces the area with a polymer-modified overlay, and seals the finished surface to prevent future moisture intrusion.

Concrete steps that are spalling, crumbling, or cracking pose a safety hazard and reduce curb appeal. The damage is usually caused by freeze-thaw cycles, de-icing salts, or poor original concrete mix. A concrete and masonry specialist can resurface, patch, or replace damaged steps depending on the severity.

A driveway that is sinking, developing uneven sections, or pulling away from the garage floor is a sign of soil settlement, poor compaction, or drainage issues underneath. The trip hazards and water pooling can worsen over time. A concrete specialist can lift sunken slabs with mudjacking or polyurethane foam injection, or replace severely damaged sections.

A concrete slab that has sunk or settled unevenly creates trip hazards, pools water against the foundation, and worsens as the void beneath the slab grows. Causes include soil erosion from poor drainage, tree-root decay leaving voids, or inadequate compaction during the original pour. A concrete mason can lift the slab back to grade using polyurethane foam injection or mudjacking, fill the void, and level the joints so the surface is flush, safe, and drains correctly.

Sunken or heaved concrete walkway slabs create trip hazards, collect standing water, and reduce curb appeal. The problem is typically caused by soil erosion, tree root growth, or freeze-thaw cycles that shift the sub-base. A concrete mason can level the slabs through mudjacking or polyurethane foam lifting, or replace severely damaged sections with new concrete or pavers.

The mortar joints between chimney bricks endure the worst conditions in your home — direct sun, driving rain, freeze-thaw cycles, and constant exposure to combustion gases from the inside. Over 20–40 years the mortar erodes, cracks, and eventually crumbles away, leaving gaps between bricks. This process (called spalling or joint deterioration) lets water penetrate the chimney structure, which accelerates the damage: water freezes inside the gaps, expanding them further, and can travel down into the flashing, attic, or even interior walls. Left unrepaired, a deteriorating chimney becomes a structural risk — loose bricks can fall, and water infiltration causes mold and rot. The fix is called tuckpointing (or repointing): a mason grinds out the old mortar to a uniform depth and packs fresh mortar into the joints. Cost is typically $500–$2,500 for a standard residential chimney, depending on height, access, and how many joints need work. A chimney cap ($200–$600 installed) prevents most direct rain and animal entry.