The short answer
How Water Gets into a Garage
Water finds its way into a garage through many paths. Heavy rain can seep under the overhead door if the seal is worn. A roof leak can drip down interior walls, especially if the garage is attached to the house. A broken water heater or supply line can flood the floor without warning.
Spring thunderstorms can bring intense rain, and hail can damage the roof, creating entry points. Even a small crack in the foundation or a poorly graded driveway can direct water toward the garage. Checking these areas after a storm helps you catch problems early.
What Gets Damaged Inside
Drywall walls and ceilings absorb water, swell, and lose their shape. Once wet, drywall can sag, crumble, and grow mold within a day or two. Wood framing and shelving can warp and rot, while metal tools and car parts may rust quickly in a damp garage.
Stored cardboard boxes, furniture, and other belongings soak up moisture and become ruined. The garage floor, if concrete, can hold moisture and stain. Even the garage door itself can suffer, with springs and tracks corroding. The longer water sits, the deeper the damage spreads.
- Drywall softens and crumbles
- Wood warps and rots
- Metal rusts and corrodes
- Stored items soak and stain
- Concrete floors hold moisture
- Mold grows on damp surfaces
Signs of Water Damage to Watch
Look for water stains on the ceiling or walls, peeling paint, or bubbling drywall. A musty odor often means mold is already growing. Check for soft spots in the floor, especially near walls, and inspect the overhead door seal for gaps or cracks.
Also notice if the garage door sticks or operates unevenly, which could mean water has affected the tracks. If you see rust on tools or metal shelving, moisture is present. Catching these signs early helps you address the source before damage worsens.
Steps to Take After Water Gets In
Act quickly to dry the garage. Move wet items outside or to a dry area, and remove any standing water with a mop or wet vacuum. Open windows and use fans to circulate air, which helps dry surfaces and discourages mold. If the water came from a leak, shut off the water supply if possible.
Remove soaked drywall and insulation, as they cannot be dried effectively. Toss out anything that absorbed water and cannot be cleaned, like cardboard or fabric. Wear gloves and a mask when handling wet materials, and see a doctor if you feel unwell from mold exposure.
When to Call Local Water Damage Pros
If water damage is extensive, or you cannot dry the garage within a day or two, it is time to call local water damage pros. They have the equipment to extract water, dry the space, and assess hidden damage in walls and floors. Their work usually involves removing affected materials, treating for mold, and preparing the area for repairs.
The cost depends on the extent of the damage, the size of the garage, and the materials involved. If you have insurance, check your policy to see what is covered. Policies vary, and your insurer decides what is covered. A professional can help you understand the scope, but you handle your own claim.
Water damage does not wait
Call (214) 730-5993 any time, day or night, and describe what happened.
Call Now (214) 730-5993Frequently asked questions
Can a garage floor crack from water damage?
Yes, water can cause concrete floors to crack over time. Moisture seeps into small pores, and freezing or thawing cycles can expand the concrete. Also, prolonged dampness can weaken the surface, leading to cracks. Drying the floor and sealing it helps prevent future issues.
Does water damage affect the garage door opener?
Water can damage the electrical components of a garage door opener if it gets wet. Moisture can short-circuit the motor or corrode the wiring. If the opener is exposed to water, turn off power to it and let it dry completely. Consult an electrician if you suspect damage.
How long does it take for mold to grow after water damage?
Mold can begin to grow within 24 to 48 hours in warm, damp conditions. That is why drying the garage quickly is important. If you cannot dry the area soon, mold may spread to walls, floors, and stored items. Professional drying and mold treatment may be necessary.