O Sullivan Construction | Waterproofing & Roofing in Boston, MA 02124

We see this frequently in Boston's climate. Granule loss often signals aging shingles, and poor ventilation can trap heat and moisture, accelerating wear. Our approach starts with a thorough inspection to identify the root cause. We can perform targeted repairs or recommend a full roof replacement with high-quality, weather-resistant materials. Crucially, we ensure proper ventilation is installed or repaired to regulate attic temperature and moisture, protecting your roof's structure and improving energy efficiency in your home.

Our waterproofing service is a complete system designed for long-term protection. It starts with an assessment to locate moisture entry points. We then typically combine interior or exterior drainage solutions with the application of high-grade waterproofing membranes or coatings to your foundation walls. This is often paired with sump pump installation for active moisture control. As a full-service contractor, we ensure all components—from the foundation seal to the gutters and downspouts we install—work together to keep your basement dry and your home's structure sound.

Absolutely. In fact, proper moisture control is a critical step we never skip. Before any new siding installation, we conduct a detailed inspection of the underlying sheathing and insulation. If we find issues like rot or inadequate weather-resistant barriers, we'll repair or install new moisture control systems to create a solid, dry base. This ensures your new siding—whether it's vinyl, fiber cement, or another material—performs optimally, looks great for years, and truly protects your Boston home from the elements.