Caulking & Weathersealing

Exterior Painting & Weatherproofing

Caulking and Weathersealing Around Windows, Doors, and Penetrations

Caulk at windows and doors has a finite service life — five to ten years in Michigan's climate before thermal cycling cracks it internally. When caulk fails, water enters the joint, freezes, and enlarges the gap. Drafts come through. Insects find the opening. Moisture starts working into the wall cavity and causes damage that doesn't surface for years. On a lot of Oakland County homes we work on, the original caulk has never been replaced.

We remove all old, cracked, and failed caulk with specialty tools before applying new sealant — not just caulking over the top of the old bead. Joint surfaces get cleaned and dried. We size the bead to each joint width and use backer rod in gaps too large for caulk alone. High-performance elastomeric and paintable silicone sealants handle Michigan's full thermal range. We seal around window and door frames, siding joints and corner boards, electrical boxes, light fixtures, pipe and cable penetrations, and foundation-to-siding transitions.

Southeast Michigan homeowners notice draft reduction immediately after weathersealing work. Heating and cooling costs drop when conditioned air stops escaping through gaps that have been open for years. We do weathersealing as part of every exterior painting project — joints need to be sealed before primer goes on — and also as a standalone service for homeowners focused on weatherization.