Mold remediation cost can quickly escalate. But if you have mold in your home, the cost for mold remediation is worth it.
How Fast Can Mold Grow After Water Damage?
What’s damp today will be moldy tomorrow
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Mold growth from water damage starts fast, with how quickly mold grows depending on temperature and humidity in your home.
Remove standing water immediately and dry affected areas within 24 to 48 hours to prevent mold from taking hold after water damage.
Visible black spots, musty odors, and sudden allergy symptoms signal mold growth and confirm you need to address moisture issues right away.
Hiring a local water damage restoration professional provides reliable help with water removal, drying, and preventing mold growth before it becomes a bigger problem.
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A flood, roof leak, or burst pipe might seem like the worst-case scenario, but if you don’t act quickly, the water damage to your home will only be the beginning. In this guide, we’ll explain how fast mold can grow after water damage, how to identify a mold issue, and more to keep you fully prepared.
How Fast Can Mold Grow After Water Damage?
Mold will begin growing within 24 to 48 hours after water damage in most cases, but in some homes, it can set in within just 12 hours. Getting the water out and dealing with the moisture immediately should be your number one priority once you discover water damage in your home, and it can save you money on your water damage restoration costs.
Factors Affecting How Quickly Mold Sets In
Why does the timeline vary? There are two major reasons.
Humidity: Mold thrives in humid environments, so if you live in an area with naturally high humidity, the addition of water in your home can allow mold spores to take root and begin multiplying more quickly.
Temperature: Mold also thrives in warmer temperatures. If you live in a colder climate, you may have the full 48 hours before mold begins to grow. If you live in an area where temperatures are consistently high, you may only have 12 hours.
How to Identify Mold Growth
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After water damage, there are three things you can look out for to identify mold growth.
Visible mold: The most obvious sign of mold growth is, well, mold growth. When mold begins growing on surfaces, you’ll see circular black spots forming that might appear fuzzy. This is a clear sign of mold, although it might not be immediately obvious if it’s hidden under cabinets or behind furniture.
Musty odors: Mold spores will be released from the surfaces where the mold is growing and become airborne. Those spores create a musty, moldy odor in areas affected by mold, so this is a clear sign of water damage and resulting mold growth.
Allergy symptoms: Many people will experience allergy symptoms when exposed to mold spores. If someone in your home suddenly experiences itchy eyes, a runny nose, coughing, or sneezing right after water damage, you may have mold growth.
How to Prevent Mold Growth After Water Damage
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Knowing how to identify and treat mold growth is great, but the best thing to do after water damage is to avoid mold altogether. This will require drying out the area to remove moisture that allows mold to thrive. You can follow the steps below to prevent mold growth after water damage.
Pump out standing water: Begin by pumping out any standing water to mitigate the damage.
Vacuum up puddles: Use a shop vacuum to suck up puddles and remove excess water.
Remove water-logged materials: Consider cutting out and removing water-logged drywall, insulation, carpet, carpet padding, furniture, and belongings that are beyond repair.
Set up blower fans: Set up blower fans in the water-damaged room and run them for 24 to 72 hours.
Run a dehumidifier: Run a dehumidifier in the room, as well. This will increase the effectiveness of the blower fans and help bring down moisture levels to prevent mold growth.
Taking aggressive action immediately after water damage is the best way to prevent mold growth. If you’re not prepared to carry out the steps above or don’t have the necessary tools or time, call a water damage restoration company near you to get the work done for you.
Frequently Asked Questions
Water and smoke damage repairs reviews from real Angi homeowners in Columbus, OH
4.8★ avg. • 2 total reviews
- Julio V.
Positive experience. As previously stated, the replacement/repair could not be completed (no fault of the plumbing tech) b/c misinformation was rec?d by property management maintenance. Thanks to the plumbing tech for your efforts. Appreciate you!
The Waterworks - Brent C.
Carpet repair done well. Scheduling was easy. Showed up on time.
BR Flooring Installation - Mike Z.
As usual with ECO, tech Jordan was outstanding, very professional, very knowledgeable, and very thorough with repairs made to tankless water heaters. Very highly recommend ECO!!!
Eco Plumbers, Electricians, and HVAC Technicians - Austin Y.
I would recommend this company to anyone! He showed up on time, was friendly, completed a very difficult repair on our dryer vent cover, was responsive, and pricing was extremely fair and competitive. I would have him back to do any of our repairs or cleanings without hesitation!
U.S.A. Dryer Vent, LLC - Micki B.
Everything from initial contact to completion was absolutely top notch. We contacted the business during off hours to leave a message, and the owner still reached out to feel out the issue within minutes. We were scheduled and repaired within 48 hours. I cannot say enough about the...
Supreme brick & chimney - Donald L.
Ace Fireplace Services came to the rescue for my chimney repair. They were quick to pinpoint the issue and worked their magic to fix it. My chimney is now in excellent shape, and I'm a satisfied customer.
Ace Fireplace Services - Lisa S.
On Sunday 2/26 I requested quotes via Angi from 4 refrigerator repair businesses. Northwest Appliance responded to me Monday morning (2/27) and my refrigerator was repaired by noon the same day. Great communication, they did everything they said they would. The technician had the parts on...
- Angie M.
When we had the winter freeze, I called Quantum Waterworks Waterline & Drain Cleaning Services and within 1 hour I received an e-mail and he sent someone out the next day and he was on time, he was nice and did the job quickly and cleaned up after himself. We had a leak in our kitchen from...
Quantum Waterworks Waterline & Drain Cleaning Services, LLC - Heather M.
On time, clean and finished fast. Windows seem sturdy and the finish is good. Caulking was done with no smudges. Would recommend.
Window Depot USA of Central Ohio - Michael S.
Did a great job replacing the ice maker and water regulator on my refrigerator. He was quick and thorough, very friendly and professional. If I needed a heart transplant I'd want him to do it!!!
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