Professional Caulking & Weathersealing in Hernando County

If the caulk is cracked, pulling away from the surface, or has visible gaps, it needs replacing. You can also run your hand along window and door frames on a windy day—if you feel air movement, the seal has failed. In Florida, caulk typically lasts 5-7 years on exterior applications before UV and moisture break it down, compared to 10+ years in milder climates.

We use 100% silicone caulk for wet areas like showers, tubs, and exterior window frames because it stays flexible and won't grow mold. For paintable joints around trim and baseboards, we use high-quality acrylic latex caulk. For expansion joints and areas with significant movement, we use polyurethane sealant, which has superior adhesion and flexibility.

Yes—air leaks around windows, doors, and penetrations are one of the biggest sources of energy loss in Florida homes. The Department of Energy estimates that sealing air leaks can reduce heating and cooling costs by 10-20%. In Hernando County, where AC runs 8-9 months a year, that adds up fast.

No. New caulk does not bond properly to old, degraded caulk—it peels off within months. We always remove the old caulk completely using specialty tools and razor scrapers, clean and dry the surfaces, and then apply fresh caulk to bare substrate. It takes longer but it's the only way to get a seal that actually lasts.

The priority areas are window frames, door frames (including the threshold), where siding meets trim, pipe and wire penetrations through exterior walls, dryer vents, hose bibs, and where the foundation meets the framing. Inside, check around tub surrounds, kitchen backsplashes, and where baseboards meet tile or hard flooring.

A full exterior caulking and weathersealing job on a typical 3-bedroom Hernando County home takes 4-6 hours. This includes removing all old caulk, prepping surfaces, and applying new sealant at every window, door, and penetration point. Interior wet-area recaulking adds another 1-2 hours depending on the number of bathrooms.