Inspect around windows and doors using a flashlight or your hand to feel for air movement.
Check baseboards, electrical outlets, and plumbing penetrations for signs of air leakage.
Use a utility knife to remove old caulk or debris from the areas to be sealed.
Clean the surfaces with a dry rag to ensure proper adhesion of sealants.
Load the caulking gun with silicone or latex caulk and cut the tip at a 45-degree angle.
Apply a continuous bead of caulk along gaps and cracks around windows and doors.
Install adhesive-backed weatherstripping along door frames and window sashes.
Shake the spray foam can well and insert the nozzle into larger gaps before spraying.
For wide cracks, insert a foam backer rod before applying caulk to ensure proper fill.
Use a putty knife or gloved finger to smooth the caulk and ensure a tight seal.
Wipe away any excess caulk with a damp rag before it dries.
Allow all sealants and foam to cure according to the manufacturer’s instructions.
Reinspect all sealed areas to ensure no gaps were missed during the process.
Touch up any missed spots with additional caulk or foam as needed.
Ensure doors and windows open and close properly after sealing.
Use a ladder safely when sealing high or hard-to-reach areas.
Wear gloves when handling caulk and spray foam to protect your skin.
Dispose of empty caulk tubes and foam cans according to local regulations.
Store leftover materials in a cool, dry place for future use.
Test for improved insulation by checking for reduced drafts after sealing.
