What Is Efflorescence on Basement Walls, and Does It Mean You Have a Water Problem?
Finding white, powdery or crystalline material on a basement wall can be concerning. Homeowners may assume it is mold, deteriorated concrete or a hazardous substance. In many cases, the material is efflorescence—a salt deposit left behind when moisture moves through concrete, brick, block, stone or mortar and then evaporates from the surface. Efflorescence itself is […]
Lime Mortar vs. Portland Cement: What Is Best for Older Boston Brickwork?
The strongest mortar is not automatically the best mortar for an older brick building. Many historic Boston homes were constructed using relatively soft bricks and lime-rich mortar. These walls were designed to manage moisture and minor movement differently from modern masonry systems. When deteriorated historic mortar is replaced with a mixture that is too hard, […]
Chimney Crown Repair vs. Chimney Flashing Repair: What Is Causing Your Leak?
Water appearing around a chimney does not automatically mean that the roof needs replacement. The leak may be caused by a cracked chimney crown, deteriorated flashing, damaged mortar joints, porous bricks or a missing chimney cap. Because these components are close together, water may enter in one location and appear somewhere else. A stain on […]
Basement Condensation vs. Water Leaks: How Boston Homeowners Can Tell the Difference
Finding water droplets, damp walls or a musty smell in your basement does not always mean groundwater is leaking through the foundation. The moisture may be condensation caused by humid air contacting cold basement surfaces. However, condensation and water intrusion can produce similar symptoms—and sometimes occur together. Boston and Cambridge basements are especially susceptible because […]
Bowing Basement Walls in Boston
A bowing basement wall is more than a cosmetic problem. It can indicate that pressure outside the foundation is pushing the wall inward, potentially weakening an important structural component of the home. Boston-area properties can be particularly vulnerable because of aging foundations, seasonal temperature changes, heavy rain, snowmelt, poor drainage and repeated soil movement. Older […]