When to Replace Drywall After a Plumbing Leak

If you’ve had a plumbing leak, you might be wondering: Do I need to replace the drywall, or can it dry out and be saved?

Here’s the straight answer: If drywall has been wet for more than 24-48 hours, you likely need to replace it. And if there’s any sign of swelling, sagging, or mold—rip it out. Fast.

How Wet Is Too Wet?

Drywall is made of gypsum and paper. Once it soaks up water, it loses its strength and becomes a mold magnet.

Here’s what to look for:

• Soft spots or bubbling

• Discoloration or stains

• Musty smell (a sign of mold growth)

• Visible sagging or crumbling

Even if the surface looks dry, the inside can stay damp. That’s why we use moisture meters on every job.

How Long Was It Wet?

This part matters most.

• Less than 24 hours, clean water (like from a burst cold water line): You might be able to dry it out—if there’s no damage and we can get it bone dry fast.

• More than 48 hours, or dirty water (like from a drain line): That drywall’s gotta go. Mold risk is too high. And insurance usually won’t cover mold damage if you wait too long.

What About the Ceiling?

Ceiling drywall is even trickier. Water causes it to sag fast. If you see any bulges or staining, it’s safest to remove it. Wet ceilings can collapse, especially if insulation is holding extra weight.

What's Code Say?

Per the IICRC S500 standards, materials like drywall that remain wet for more than 48 hours should be removed if drying cannot be confirmed and documented. And for mold risk, the S520 mold remediation standard is clear—porous materials with visible growth or extended exposure need to be discarded.

Our Process at Total Home Water Restoration

1. Moisture check with infrared and meters

2. Cut out and bag damaged drywall (with proper containment)

3. Dry out the framing and insulation (if salvageable)

4. Treat the area to prevent mold

5. Replace drywall and match texture/paint

We treat your home like our own. We don’t rip out more than we have to—but we don’t cut corners, either.

Common Questions

Can I just dry the drywall with fans?

If it’s been wet for more than a day, probably not. Fans help, but they don’t reach behind the wall. You need professional drying and moisture checks.

What if mold has already started?

Don’t wait. Mold on drywall spreads fast and affects air quality. We’ll isolate the area, remove it safely, and treat the framing before replacing anything.

Need help fast in Grove City or the Columbus area?

📍 Total Home Water Restoration
4141 Hoover Rd, Grove City, OH 43123
📞 380-246-1837

We’ll come out, assess the damage, and give you honest advice—no pressure.

From disaster to done right. We fix it like it’s our own home.