Stucco is a popular exterior finish for homes and buildings, known for its durability and low maintenance. However, like any other building material, stucco is not immune to damage.
Dealing with stucco water damage and water infiltration is essential to maintain the durability and appearance of your home or building. As a popular exterior finish, stucco is susceptible to water intrusion, which can lead to cracks, discoloration, and even mold growth.
As a Tucson stucco repair and installation company, we’ve seen our fair share of water damaged stucco and the problems it can cause.
In this article, we look at the following aspects of dealing with stucco water damage:
- What is stucco water damage?
- Best treatment options for water damaged stucco
- Preventing water damage issues
It is imperative to address this issue without delay in order to mitigate any potential financial burdens that may arise in the future due to the extensive damage caused by water.
By the time you finish reading, you’ll have the full insight on how to treat and prevent stucco water damage.
Table of Contents
Understanding Stucco Water Damage
Before we dive into the treatment and prevention of stucco water damage, it’s important to understand what causes it. Stucco is a porous material, meaning it can absorb water during rainstorms. When water seeps into the stucco, it can cause cracks, discoloration, and even mold growth.

Water damage to stucco can occur due to various reasons such as heavy rain, improper installation, or lack of maintenance.
Worst Case Scenario when Water Damages Your Stucco
The worst-case scenario for stucco water damage can be quite severe. If left untreated for a long time, water intrusion can cause significant damage to the structural integrity of the building.
The water can penetrate through the stucco and reach the underlying wood or insulation, leading to rot and decay. This can weaken the building’s framework and pose serious safety risks.
Additionally, prolonged exposure to moisture can promote the growth of mold and mildew, which can further deteriorate the stucco and impact indoor air quality. It is crucial to address stucco water damage promptly to prevent these worst-case outcomes.
Treatment Options
If you notice signs of stucco water damage, such as discoloration or cracks, it’s important to address it as soon as possible. The longer you wait for stucco remediation, the more extensive the stucco damage can become. Here are some stucco water damage treatment options:
Repair Cracks and Holes

The first step in treating stucco water damage is to repair any visible cracks or holes. This will prevent further water intrusion and also improve the appearance of your stucco. You can use a stucco patching compound to fill in the cracks and holes, following the manufacturer’s instructions.
Remove Mold and Mildew
If you notice mold or mildew growth on your stucco, it’s important to remove it immediately. You can use a mixture of water and bleach to scrub away the mold and mildew. Be sure to wear protective gear, such as gloves and a mask, when handling bleach.
Seal the Stucco
To prevent future water intrusion, it’s important to waterproof your stucco. Use a stucco waterproofing sealant for best results. Apply the sealant according to the manufacturer’s instructions, and be sure to cover all areas to prevent your stucco from leaking.
Water Damage Prevention Tips
Preventing stucco water damage is much easier and more cost-effective than treating it. Here are some tips to help you prevent stucco water damage:
Regular Stucco Maintenance

Regularly inspect your stucco for any signs of damage, such as cracks or discoloration, especially if you live in an area like Tucson, which is prone to heavy rains and flooding. Address any issues immediately to prevent them from becoming bigger problems. Waterproofing stucco that gets exposed to the elements is also essential.
Proper Installation
If you’re building a new home or installing stucco on an existing one, be sure to hire a professional who has experience with stucco installation. Improper installation can lead to water intrusion and damage.
Proper Drainage
Make sure your gutters and downspouts are clear and functioning properly. This will prevent water from pooling near your stucco, leading to water seepage and causing damage. Traditional masonry stucco is especially porous, so it’s vital not to let water sit against it. Modern synthetic stucco is more resistant to water, but still requires regular maintenance and fixing any cracks.

Monitor Water Intrusion
If you notice water intrusion in your home, such as leaks or water stains, it’s important to address it immediately. Water intrusion can lead to stucco water damage and other issues.
By following these tips, you can prevent stucco water damage and keep your stucco looking great for years to come.
Dealing with Water Damage to Your Stucco: the bottom line
In conclusion, dealing with stucco water damage requires prompt action to prevent further issues. Monitoring water intrusion and addressing any leaks or water stains is crucial in maintaining the integrity of your stucco.
However, if you find yourself in need of professional stucco water damage assistance in Tucson, Arizona, don’t hesitate to contact Sunset Coatings Stucco & Paint.
Our experienced team will provide a free quote to repair and restore your stucco, ensuring it remains in excellent condition for years to come.
Frequently Asked Questions about Stucco Water Damage
Does homeowners insurance cover stucco damage?
Homeowners insurance coverage for stucco damage varies by policy. Typically, it covers unforeseen events but not wear and tear. It’s essential to review your policy for specifics regarding water damage to stucco.
Does stucco deteriorate from moisture damage?
Yes, stucco can deteriorate from moisture damage, especially if not properly sealed. Over time, exposure to water can lead to cracks and compromise its integrity. To prevent your stucco from leaking, regular maintenance and proper sealing are crucial.
How do you know if water is behind stucco?
Signs that water is behind stucco include discoloration, mold growth, or a musty smell. Soft spots or cracking on the exterior stucco may also indicate moisture intrusion.
Ralph Peralta
Ralph Peralta is the owner and founder of Sunset Coatings Stucco & Paint. Ralph has worked in the stucco industry for over 15 years, including commercial and residential stucco. Ralph is first and foremost committed to customer satisfaction and providing Tucson homeowners and businesses with exceptional synthetic stucco installation, restoration, and repairs. As a dual-licensed commercial and residential stucco contractor, Ralph has the knowledge and experience to deliver on all your stucco needs.