Window Caulking and Exterior Sealing in Maryland, Virginia & Washington, DC
Commercial-grade silicone and polyurethane exterior joint sealing for windows, doors, expansion joints, and roof flashing penetrations.
Stop Drafts and Hidden Moisture Infiltration
Dried, cracked, or missing caulk around exterior window frames, siding transitions, masonry joints, and roof flashing penetrations is one of the leading causes of drafts and structural wood decay in Maryland, Virginia, and DC.
Hoover Roofing provides complete caulk removal and commercial-grade polyurethane re-caulking. We properly clean joint substrates, apply backer rod where needed, and tool clean elastomeric sealant beads that withstand seasonal temperature expansion and contraction.
Where Exterior Caulking Protects Your Home
Window & Door Perimeter Caulking
Sealing gaps between brickmold/trim casing and surrounding brick or siding to cut energy loss and block rain.
Roof Penetration & Pipe Flashing Sealant
Inspecting and re-sealing plumbing vent boots, chimney counter-flashing joints, and HVAC penetrations.
Expansion & Masonry Control Joints
Applying high-movement joint sealants for stone facades, brick walls, and commercial exterior panels.