commercial water damage

Water damage can pose a major threat to commercial properties, leading to water damage restoration, costly repairs, downtime, and potential health hazards. Identifying the common causes of commercial water damage is crucial for preventing and reducing its impact on your business.

Here, we address the top eight most frequent causes of water damage in commercial properties and your most pressing questions regarding water-related damage and your business.

The Top Causes of Commercial Water Damage

So, what are the common causes of water damage in commercial properties and businesses? 

  1. Roof Leaks
  2. Plumbing Issues
  3. HVAC Malfunctions
  4. Appliance Leaks
  5. Inclement Weather
  6. Structural Issues
  7. Poor Drainage
  8. Fire Sprinkler Malfunctions

1. Roof Leaks

Roof leaks are a common cause of commercial water damage. Over time, exposure to the elements can wear down roofing materials, leading to leaks and water ingress. Poor maintenance, severe weather conditions, and aging roofs can all contribute to roof leaks. Regular inspections and timely repairs are essential for preventing leaks and minimizing water damage to your business.

2. Plumbing Issues

Poor plumbing is another primary cause of water damage to commercial properties. Leaking pipes, clogged drains, and faulty fixtures can lead to water leaks, flooding, and backup. Here, too, regular inspections and maintenance can help identify and address potential issues before they escalate into extensive damage. By quickly addressing repairs and/or performing necessary upgrades to your plumbing system, you can protect your business from plumbing-related water damage.

3. HVAC Malfunctions

Your HVAC system is responsible for heating, ventilating, and cooling your commercial property. However, condensation buildup, leaking pipes, and clogged drains within HVAC units can cause water leaks and flooding. Be sure to schedule HVAC services at least twice a year (winter and summer) to a) increase efficiency and b) avoid HVAC-related water damage.

Commercial rooftop HVAC system surrounded by a puddle

4. Appliance Leaks

Commercial properties often have various appliances that can cause water damage if not properly maintained. Dishwashers, water heaters, refrigerators, and even washing machines are common sources of leaks that can lead to flooding. For this reason, timely repairs paired with regular inspections and maintenance are key to minimizing water damage to your business.

5. Inclement Weather

Severe weather conditions, such as heavy snow and rain, can also cause water damage to your commercial property. Roof leaks, flooding, and water ingress due to harsh weather conditions and storm damage can result in costly property damage. Proper building maintenance, including roof repairs, gutter cleaning, and drainage maintenance, can help protect your business from weather-related water damage.

6. Structural Issues

Structural issues, such as cracks in the foundation, deteriorating building materials, and poor construction, can contribute to water damage in commercial properties. Water intrusion through cracks and gaps in the building envelope can weaken the building’s structure, leading to mold growth, rot, and other water-related problems. Regular inspections and maintenance of your building’s envelope and structure are crucial for preventing water damage and preserving the integrity of your commercial property.

7. Poor Drainage

Inadequate drainage around commercial properties can result in water pooling, flooding, and water damage. Damaged or clogged gutters, downspouts, drainage systems and/or poor grading can cause water to accumulate around the building, leading to water ingress. Proper upkeep, including regular cleaning, repairs, and upgrades, can help prevent water damage and protect your business from water-related issues.

8. Fire Sprinkler Malfunctions

Fire sprinkler systems are essential for protecting commercial properties from fires. However, malfunctioning fire sprinklers, such as faulty sprinkler heads and system failures, can lead to water damage. Regular maintenance and testing of fire sprinkler systems are essential for ensuring their proper operation and preventing damage to your commercial property.

Hand pulling back water damaged wallpaper

Does Water Cause Structural Damage?

Yes, water can cause significant structural damage to commercial properties if not addressed promptly. When water seeps into the building’s foundation, walls, or ceilings, it can weaken the structure and compromise its integrity. This can lead to several problems, including mold growth, rotting wood, and even structural collapse in severe cases.

What is the Biggest Concern With Water Damage?

One of the biggest concerns with water damage is the potential for mold growth. Mold thrives in moist environments and can develop within 24 hours after water exposure. Once mold forms, it can spread quickly, leading to health issues and further damage to the structure. In this case, mold remediation services are critical. 


Water damage can also lead to electrical hazards if water comes into contact with wiring or outlets. This poses a severe risk of fire or electrocution, making it imperative to address water damage quickly.

What is Considered Significant Water Damage?

Significant water damage is characterized by widespread damage to the building’s structure. This may include saturated ceilings, walls, floors, and contents, as well as visible signs of mold growth. In severe cases, water damage may require rebuild construction services or even demolition of affected areas.


Overall, water damage can have a devastating impact on commercial properties, causing costly repairs, downtime, and potential health hazards. By identifying and addressing the common causes of commercial water damage, you can protect your business and minimize the risk of water-related issues.

First General is a family-owned property restoration company specializing in commercial water damage restoration. For more information about our services, please contact us by filling out the form below. If this is an emergency, please call 587-604-6506.

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