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The Different Types of Water and The Classifications of Water Damage

Prevent Water Damage

Learn about the specifics and categories of water damage.

You go through the proper steps to protect your home, but sometimes accidents happen, and you are left with costly damages.  You should take home water damage seriously because it can cause your family to vacate your property.  If you notice any type of water damage in your home, it is important to know what type of damage is occurring.  It is crucial to know the different types of water along with the various classifications of water damage.

Categories of Water

If you experience water damage in your home, one of these three types of water is involved:

  • Category 1 (Clean Water): Originates from a sanitary source and causes little to no harm when people are exposed to it.  Examples of category 1 water include broken water supply lines, uncontaminated rain water, and overflowing sink or bathtub.  Time and temperature can contaminate clean water and cause it to change categories.
  • Category 2 (Gray Water): Water with bacteria present, but does not contain solid waste.  If category water is consumed, it has the potential to cause discomfort or sickness. Discharge from dishwashers or washing machines is an example of greywater.
  • Category 3 (Black Water): Grossly unsanitary water that contains toxigenic or other harmful agents.  It is highly contaminated and can cause death or serious illness if people consume it.

Classifications of Water Damage

  • Class 1: Lowest and easiest type of damage to deal with and has a slow evaporation rate.  Only part of a room or an area has been affected, and there is little to no wet carpet.
  • Class 2: Water damage has affected an entire room, and water has wicked up the walls up to 24 inches.  It involves a large amount of water and has a fast absorption and evaporation rate.
  • Class 3: This type of water damage has the fastest evaporation rate and involves the greatest amount of water.  Ceilings, walls, insulation, carpet, and sub-floors have been saturated.
  • Class 4: This class refers to specific drying situations involving items with low permanence such as hardwood, brick, and concrete.  There are usually deep pockets of saturation, and special methods are involved.

Water Damage Recovery With ServiceMaster of Baltimore

If you’ve been hit by water damage, don’t hesitate to give us a call. We can help professionally restore any damaged areas. If you just have questions about disaster prevention, let us know too. Being properly prepared is essential for your safety and well-being.

Call your local Baltimore cleaning service company: ServiceMaster of Baltimore. We have certified licensed restoration technicians on call 24 hours a day, 7 days a week, 365 days a year. Stained carpets might seem hopeless, but our service will prove otherwise. Click Here to request an estimate today!


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Serving the following Maryland areas:

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Unfortunately disasters happen, and often times we are ill prepared. Rest assured that ServiceMaster of Baltimore is available 24/7/365 to provide certified, licensed restoration professionals onsite within hours of your initial call. No job is too big or too small. ServiceMaster of Baltimore has expertise and knowledge of the most innovative solutions in the industry. Our IICRC accredited field managers are specialists in water mitigation, fire restoration and clean-up, mold abatement and pack-out services. We are Marylands most trusted name in cleaning and restoration services because our team will do everything possible to reduce your loss and preserve your property.
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