1. Clear gutters and downspouts
Remove leaves and debris so roof water can drain freely. Confirm that downspouts discharge away from the foundation and do not empty onto a walkway or another area where water can collect.
2. Look over the roof and flashing
Watch for damaged or missing roof material, exposed fasteners, failing sealant and problems around vents, skylights or chimneys. If access is unsafe or the roof is steep, use a qualified professional rather than climbing onto it yourself.
3. Check windows, doors and exterior penetrations
Cracked caulk, failed seals and gaps around utility penetrations can allow moisture into walls. Address deterioration with materials and methods appropriate for the surface instead of sealing over evidence of an existing leak.
4. Inspect drainage around the property
Look for soil, paving or drains that direct water toward the house. Clear visible drains and note areas that puddle after rain. Persistent drainage problems may require a drainage, foundation or landscape professional.
5. Prepare the interior and mechanical systems
Service heating equipment as needed, replace filters and know where the main water shutoff is located. During the first storms, check ceilings, windows, crawlspaces, basements and garages for new staining, dampness or musty odors so small problems can be investigated early.