Whether it is the washer and dryer, the water heater, an air handler, or exposed plumbing in an unfinished wall, the garage is one of the most common places to find them. This consequently makes the garage the most likely place to experience a water leak followed by subsequent flooding. The garage is also one of the most vulnerable parts of the house to water intrusion as the garage door sits level with the driveway.

External water intrusion can be significantly compounded if the driveway is declined toward the garage. Denver is a city known for its hills and nearby mountains. Houses that are built in a valley with a driveway sloping down in the direction of the house are particularly vulnerable to water build up and potential flooding in the garage.

You may think that water damage in a garage would be less critical than inside the house, but garage flooding can have a costly impact all its own. The concrete slab in a garage is more prone to cracking, especially if you park your car in the garage. The constant fluctuations in weight from driving a car in and out can cause stress on the slab leading to cracks in the foundation. Water from flooding can seep into these cracks and cause the concrete to expand & potentially resulting in a compromise of structural integrity.

If a flood occurs, do not be apprehensive to call professional restoration and cleanup services, even while the event is happening. If the flooding is a result of inclement weather, you will likely not be the only one in need of services. Do not wait for water to slowly trickle into your home’s foundation. Consult Restoration Logistics™ and receive professional services to prevent residual damage caused by garage flooding. 

Common Causes of Garage Flooding and Some Preventative Measures.

  • Heavy Rains/Extreme Weather: When water begins to rise around your home, the garage will be the first to experience water intrusion as it is likely as the lowest point. This can be one of the more damaging types of flooding as the water will likely stay in the garage until the floodwaters naturally recede & giving water more time to soak through the slab.
  • Prevention: Installing robust weather stripping on all sides (including the bottom) of your garage door can significantly decrease or delay the intrusion of water from the outside. Filling cracks in the concrete and applying a coating of sealer can also block water from seeping into the fractures of the garage floor.
  • Burst Pipes: Another common cause of garage flooding, burst pipes can be sourced to slab leaks, water heaters, washers and dryers, as well as accidental impacts to exposed pipes along the unfinished walls of a garage. The water pressure from pipes attached to garage appliances like a water heater can be especially high and massive flooding can occur in mere minutes. Prevention: Ensure the pipes are properly installed. Have a professional fasten the pipes and inspect them for quality. Examine the pipes for any rust and hire a professional to replace old worn out pipes with new ones. Steps should also be taken to protect exposed pipes that would be more prone to being hit.
  • Seal Garage Floor Cracks: While significant damage can be caused to a slab when water seeps in from the top, these cracks, unfortunately, can also be the root cause of potential flooding. Even if flood waters do not reach the height of the garage, they can cause the ground water underneath it to rise. The water then seeps to the top of the slab and floods the garage. Prevention: This can again be prevented by making sure the concrete slab is properly sealed. Careful examination should be done to identify cracks in the garage floor. Applying a concrete or vinyl filler into the crevasses followed by a sealer across the top will help to block moisture from getting in and expanding the concrete foundation.


  1. Insurance Information Institute; What Is Covered by Standard Homeowners Insurance?; http://www.iii.org/article/what-covered-standard-homeowners-policy