Somerville Masonry Repair Services: Top Experts in 2026

Repair typically involves cleaning the joint, applying a high-quality sealant, and then embedding our Weathercap lead cap. This patented system covers the sealant, protecting it from weathering and movement, which prevents premature failure and water intrusion. It's a crucial step for a durable, long-term solution.

Weathercap acts as a protective shield for the sealant. Its soft lead construction absorbs stress from building movement and reduces environmental exposure, significantly extending the sealant's life. This prevents the common issue of joint checking and failure, ensuring a more resilient and weatherproof seal.

Absolutely. Weathercap is ideal for historic preservation and is specified in the U.S. GSA's Historic Preservation Technical Procedures. It has been used on landmarks like the Washington Monument and Smithsonian to protect venerable masonry while blending aesthetically by oxidizing to a neutral grey.

Our system includes Type A (flat) and Type B (cove) caps to protect nearly any joint configuration. This includes joints on copings, parapets, cornices, belt courses, window and door frames, and entrance steps. We offer stock, custom, and large sizes for various project needs.

Building movement, from settlement or thermal cycles, causes sealant in joints to stretch and compress. Over time, this leads to 'margin checking' or failure, allowing water to penetrate. Weathercap's flexible lead design moves with the building, preventing these failures and protecting the structure.

Yes, Weathercap can be painted to match the surrounding masonry for specific aesthetic requirements. If left unpainted, its surface naturally oxidizes to a neutral grey color that blends seamlessly with most stone and masonry, making it visually unobtrusive for restoration projects.