What does water damage look like on walls?

Author: Jalen Runte  |  Last update: Thursday, February 13, 2025

As noted above, water damage will usually leave walls soft to the touch, or otherwise warped, buckled, and crumbled. It also tends to cause a musty smell and dark brown or yellow-tinted stains, lines, or rings in both ceilings and walls.

How to tell if a wall is water damaged?

Some common signs include peeling wallpaper or blistering paint, increased moisture and high water bills, musty odours, visible water stains on walls/ceilings, mould growth, and signs of water trails like efflorescence deposits. Pay attention to telltale signs like these before further unseen damage occurs.

How long does it take for water damage to show on walls?

It can happen in just minutes if the leak is big. Water quickly gets into materials like drywall and flooring, causing them to swell, warp, and change color. But not all damage happens right away. Leaks that aren't fixed can cause big problems over hours or days.

What do water stains on walls look like?

Water stains appear as light gray or brown stains on your walls or ceilings. They can range from faint to dark, like a coffee stain.

What does minor water damage look like?

Minor water damage can look like small leaks that gradually worsen over time. A constantly dripping faucet or a malfunctioning toilet can cause water damage in the form of visible moisture, discoloration, and stains, or mold spreading around a sink or toilet.

Here's a Tip for Validating Moisture Within Walls

What does water damage behind drywall look like?

Look for discoloration, which often shows up as streaks from the ceiling. These streaks are usually brown and mean water has gotten into the walls. Mold is another clear sign of damage. It looks like black, green, or white spots and loves damp places.

Is water damage covered by insurance?

Under most standard home insurance policies, if water damage occurs suddenly or accidentally from a source inside your home, such as a busted pipe, it will likely be covered by your homeowners insurance. If the water comes from outside your home, it will not be covered by your standard policy.

How do you test for water damage to walls?

Moisture and water that get behind the wall cause the backside of the drywall to soften and even become mushy. Look for soft spots or wet spots in the drywall and gently press into them. If the drywall depresses, there is most likely water damage. Mold on your walls' surfaces.

Why do I have water marks on my walls but no leak?

There are several causes for damp patches appearing on interior walls including damaged guttering, cracked roof tiles and more commonly condensation.

What is the difference between moisture damage and water damage?

“Moisture intrusion” means water – whether liquid, frozen, condensed or vaporized – that penetrates into your home. “Water damage” means damage or harm caused by moisture intrusion that reduces the value or usefulness of your home.

How do they fix water damage in walls?

Steps To Repairing Water Damage
  1. Clean The Area. Before you start a project like this, give the water damaged area a good clean. ...
  2. Clear And Scrape Any Flaking In The Area. ...
  3. Cover Water Damaged Area With A Peel-Stop / Sealer Binder. ...
  4. Apply Filler. ...
  5. Sand Surface. ...
  6. Apply Water-based Primer / Sealer. ...
  7. Apply Paint.

What is a home inspection for water damage?

A water damage inspection aims to identify every area of your home affected by water and assess how much structural damage there is. This assessment includes wet ceilings and water-soaked insulation or ductwork. An inspector will determine what's causing the water and try to stop the flow.

What does water damage mold look like?

They often appear grayish-black. However, other types of mold can also be orange, purple, yellow, and green in color. If your property had just been flooded, observe the porous, organic surfaces like drywall, plywood, and fiberglass insulation backing that had been submerged in water.

How do you know if there is water behind drywall?

Signs of a Water Leak Behind Walls
  1. Peeling wallpaper or paint.
  2. Cracks on the ceiling or water stains on the walls.
  3. Cracked or bucked floors.
  4. Musty or moldy smell in the room. This usually persists even if you improve the ventilation in that room.
  5. Presence of mold and mildew, especially on walls, ceilings, and floors.

Does bubbling paint mean a water leak?

Bubbling paint often indicates a water leak.

What does water damage behind wall look like?

As with other rooms, flaking, bubbling paint is another sign of water-damaged basement walls, along with wood rot and uneven or sinking floors surrounding the walls in question. Noted earlier, warped, bowing walls with yellow-brown stains are also signs of water damage in your basement walls.

How do plumbers find water leaks in walls?

Once you know you have a leak, you'll need to hire a plumber. But how do plumbers find leaks? Plumbers use moisture meters and determine the area of the wall with the highest moisture levels. Sometimes, leaks are located using infrared cameras, which point out the coolest (and wettest) areas behind the walls.

Why is water seeping through my wall when it rains but no leak?

Over time, bricks can crack, and mortar can erode, creating pathways for water to enter. Pay special attention to any visible cracks, gaps, or crumbling mortar. Gutter and Downspout Inspection: Faulty gutters and downspouts can direct water towards the wall instead of away from the property.

What does water damaged drywall look like?

As noted above, water damage will usually leave walls soft to the touch, or otherwise warped, buckled, and crumbled. It also tends to cause a musty smell and dark brown or yellow-tinted stains, lines, or rings in both ceilings and walls.

How long does it take for water to damage walls?

The immediate effects of water exposure are within the first 24 hours. During this critical period, saturation can compromise the structural strength of flooring, walls, and ceilings.

What does a water stain look like?

Water stains: A clear sign you have a plumbing issue is water stains. There could be signs of water damage on the ceiling or walls with abstract shapes. The stains often have a yellowish-brown color.

How much do you have to pay for water damage?

Water damage restoration costs can vary widely depending on several factors, including the extent of the damage, the type of water involved, the area affected, and the materials and labor required for restoration. On average, water damage restoration in 2024 can range from $1,200 to $5,000 in the CA, USA.

Why would a water damage claim be denied?

Reasons for denial can range from the nature of the damage itself—such as gradual damage that occurred over time—to issues with how the claim was filed, including missed deadlines or insufficient documentation. Furthermore, unreported property modifications can also lead to complications during the claims process.

What is an example of a mold claim?

Examples include;

Black mold experienced after a ruptured water heater. Mold located at the bottom of storage cupboards after the kitchen experienced flooding (due to a malfunctioning dishwasher). The development of mold after a house fire was extinguished with water.

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