Proper caulking keeps water out of places it shouldn’t be. Over time, though, caulk can crack, shrink, or develop mold. Inspecting it regularly—at least once or twice a year—will help you catch problems early and avoid damage to walls, cabinets, and flooring.

Follow this simple guide to check the caulking in your kitchen and bathroom:

Where to Inspect

Start by looking closely in these common areas:

• Around sinks and countertops (especially where the backsplash meets the counter)
• Edges of bathtubs and showers
• Shower corners and joints between walls and the tub or pan
• Around faucets and fixtures
• Along the floor where tile meets the wall

What to Look For

As you inspect each area, watch for the following signs:

Cracks and Gaps

• Check for thin or wide cracks running along the seam.
• Even small gaps can let water seep behind the surfaces.

Peeling or Lifting

• Look for areas where the caulk is pulling away or curling at the edges.
• This can leave openings for moisture.

Discolouration

• Notice any yellowing, darkening, or staining.
• Persistent discolouration often indicates mold or mildew growth.

Shrinking

• Over time, caulk can shrink and leave spaces between the surfaces it’s sealing.
• Look for recessed or uneven edges.

Soft or Spongy Texture

• Gently press the caulk with your finger.
• If it feels soft or mushy, moisture has likely gotten behind it.

Holes or Missing Sections

• Look for any spots where caulk has fallen out completely.
• This leaves gaps that should be resealed as soon as possible.

Odor

• If you notice a persistent musty smell, it could mean mold is growing behind damaged caulking.

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What to Do If You Find Problems

If you see any of the issues above, the best approach is to remove and replace the old caulk rather than trying to patch over it. Here’s a brief overview of how to tackle it:

1. Remove the old caulk with a utility knife, caulk removal tool, or scraper.
2. Clean and dry the area thoroughly to remove residue and prevent mold from coming back.
3. Apply fresh caulk (choose a waterproof, mold-resistant product rated for kitchens and baths).
4. Smooth the bead with a caulk tool or your finger dipped in soapy water.
5. Let it cure fully according to the manufacturer’s instructions before using the area.

How Often Should You Inspect?

Make a habit of checking your caulking at least once or twice a year—spring and fall are good times—or more often in high-use areas like showers. By staying proactive, you’ll help keep your kitchen and bathroom sealed, clean, and protected from costly water damage.