Caulking & Weatherproofing
Self-Performed Service

Caulking & Weatherproofing

Building envelope sealing, expansion joints, and window caulking.

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We apply commercial-grade sealants to help reduce water intrusion, air leaks, and weather-related wear. We scrape, clean, and reseal building joints, storefront windows, entry doors, and masonry cracks.

Capabilities & Scope of Work

  • Window frame and storefront glass caulking
  • Exterior expansion joint repairs
  • Door threshold and frame perimeter sealing
  • Masonry and concrete crack sealing
  • Interior wet-area caulking (kitchens, bathrooms)
  • Air sealing and building envelope protection

Common Applications

  • Resealing leaking storefront window perimeters
  • Replacing weathered expansion joints in concrete walls or walks
  • Air sealing drafty commercial warehouse loading doors

Typical Customers

Why Choose KONTOS

We use premium commercial polyurethanes and silicones that stand up to UV exposure, temperature shifts, and commercial building conditions.

Partner with KONTOS Facility Services

Whether you require a single repair, scheduled preventative maintenance, or a light tenant improvement project, our team is equipped to deliver reliable, self-performed service.

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