Phone answered 24/7 · Quincy, MA and nearby communities

Call 24/7: (617) 404-2753
Neponset River Water Damage HelpQuincy, MA · Answered 24/7

How to Tell If My Shower Pan Is Leaking or Not?

Last updated October 31, 2026

Call Now (617) 404-2753

The short answer

Look for Visible Water Stains

Start by examining the ceiling directly below the shower, especially if the shower is on an upper floor. Water stains, discoloration, or peeling paint are common signs that water is escaping the pan. These stains often appear as yellow or brown rings that grow over time.

Check the walls and floor around the shower base for any dark spots or bubbling. Pay attention to the corners where the pan meets the wall, as leaks often start there. If you see any staining, it is a strong clue that the pan is not holding water.

  • Yellow or brown rings on the ceiling
  • Peeling or bubbling paint
  • Dark spots on walls or floor near the shower
  • Cracked grout or caulk around the pan edges

Feel for Soft or Spongy Areas

Walk across the shower floor and press down with your foot. If the tiles feel soft, springy, or give way under pressure, the subfloor underneath may be water damaged. This happens when water seeps through the pan and soaks the wood or backing material.

Also press on the walls around the shower. Soft spots or a slight give can indicate that moisture has traveled beyond the pan. A firm, solid surface is a good sign, but any softness is a red flag that needs attention.

Run Water and Watch for Drips

Turn on the shower and let the water run for several minutes. Then, go to the area below or behind the shower and look for any drips, moisture, or water pooling. You may need a flashlight to see into dark corners or behind access panels.

If you have an access panel, open it and check the area under the pan. Feel for dampness or run your hand along pipes and the pan bottom. Be careful not to touch any electrical components. If you see water, you have a leak that needs fixing.

Notice Musty Odors

A persistent musty or earthy smell near the shower is often a sign of hidden moisture. Even if you cannot see water, mold and mildew can grow in damp areas under the pan. Trust your nose, as it can detect problems before they become visible.

If you smell something musty, try to locate the source. It may be coming from the drain area or from under the tiles. The odor usually means water has been sitting for a while, which can lead to more damage if not addressed.

Check the Pan for Cracks

Inspect the shower pan itself for any visible cracks, chips, or gaps. Run your fingers along the edges and the bottom. Even small cracks can allow water to escape, especially when the shower is in use. Look for signs of wear or previous repairs.

Also check the caulking and grout lines around the pan. If they are cracked, missing, or pulling away, water can slip through. Regular maintenance of these seals helps prevent leaks. If you find any damage, consider having the pan inspected by a pro.

Need help right now?

Phones are answered 24/7 for Quincy and nearby communities.

Call Now (617) 404-2753

Frequently asked questions

Can a leaking shower pan cause damage to my home?

Yes, a leaking shower pan can cause significant water damage over time. It can rot the subfloor, weaken wall framing, and lead to mold growth. If you suspect a leak, act quickly to minimize damage and avoid costly repairs.

Should I call a pro to check my shower pan?

If you notice signs of a leak, it is wise to have a water damage inspection done. A pro can use moisture meters and other tools to find hidden leaks. They can also help with cleanup and drying if damage has already occurred.

What should I do if I find a leak in my shower pan?

First, stop using the shower to prevent further water intrusion. Then, contact local water damage pros for an assessment. They can help with water extraction, drying, and any necessary repairs. Policies vary, and your insurer decides what is covered, so check your policy to understand what may be included.

Call Now (617) 404-2753