Enviro Master Blog

How to Get Rid of Mold in Grout


Getting rid of mold involves a few household products such as bleach or hydrogen peroxide, some elbow grease, and attention to detail. Being as thorough as possible can help prevent recurring mold issues. Larger problems may require commercial-grade cleaners. 


Grout and tiling can create perfect little environments, or breeding grounds, for mold. As harmless as it may seem, ignoring the mold that darkens the lines of grout between your tiles is a bad idea.

Mold, particularly the dreaded black mold, is a type of fungus that thrives in moist, warm environments. This explains why your bathroom is the favorite hangout for these unsightly intruders and why grout, being porous, holds excess moisture and becomes their breeding ground.

It’s more than discoloration on grout lines; mold is a living organism that reproduces via spores, invisible to the naked eye. When you breathe, you can unknowingly inhale these spores leading to potential health risks. What seems like a simple stain can also be a problem that affects the air you breathe and sometimes requires immediate attention.

What is Mold and Why is it in Your Grout?

Mold, in simplest terms, is a type of fungi that can be found virtually anywhere, both indoors and outdoors. One specific type of mold that commonly forms in bathrooms is black mold, or Stachybotrys chartarum, living on household surfaces that are porous, such as wood, fiberboard, and, of course, grout.

Why does mold love to inhabit your grout? Grout can absorb water, creating a breeding ground for mold when paired with excess moisture. Virtually every shower forms soap scum, an organic matter that mold thrives on.

Understanding the types of mold and what causes it is the first step in your battle against it. Identifying the starting point of growth, such as an improperly sealed grout line, can help prevent future outbreaks. It also helps you identify key areas to focus on during your cleaning sessions. The tile grout in your bathroom, especially the shower grout, will require frequent checks due to its constant exposure to water and humidity. The good news is, even if your grout is currently in the mold’s grip, it doesn’t mean it has to stay that way. The right tools, techniques, and regular cleaning can win the war over mold.

Hazards of Mold in Your Grout

All mold can have potential health effects. The tiny mold spores that are released into the air can be a trigger for allergies, causing reactions like sneezing, red eyes, rashes, and even more severe respiratory issues. Those with asthma or compromised immune systems are particularly vulnerable.

It’s not just the air, either. Mold, including what’s in your grout lines, can cause skin irritation upon contact. Handling mold without safety precautions, such as wearing rubber gloves, can lead to itchy skin or even burns in the case of certain types of molds.

Persistent dampness in your bathroom that allows mold and mildew to flourish can damage your home’s structure over time, from staining your grout and tiles to more severe issues like weakening wooden supports. Regular cleaning and tackling the mold issue in its early stages can help protect your and others’ health and the longevity of your space.

DIY Methods to Clean Mold from Grout

Method 1: Hydrogen Peroxide

Start by mixing equal parts of hydrogen peroxide and warm water in a spray bottle. Wear rubber gloves for safety, spray the solution generously onto the affected area, letting it sit for some time (at least 30 minutes) to allow the peroxide to do its work. Follow up by vigorously scrubbing the grout lines with a grout brush. Rinse the area with warm water and wipe it down with a clean cloth.

Method 2: Vinegar

Vinegar’s acidic property makes it an effective solution in combating mold. Fill a spray bottle with undiluted white vinegar and apply it directly on the moldy grout. Give it an hour or so to work its magic then scrub with a grout brush. Rinse with warm water and dry with a clean cloth.

Method 3: Bleach

Mix one part bleach with three parts warm water in a spray bottle. Make sure you’re in a well-ventilated space (turn on the fan to help air circulation) and have your gloves on. Spray the mixture on the mold-infested areas and leave it for an hour. Scrub the grout thoroughly with a brush, rinse with warm water, and dry afterward. While bleach is effective, it can discolor colored grout, so this method is best for white grout.

Method 4: Baking Soda

Create a paste with baking soda and water and apply it directly onto the grout lines using an old toothbrush. Leave it for some time and later scrub and rinse as usual.

While these methods can be effective, they require time, effort, and a regular cleaning regime. They do not guarantee complete mold elimination either, especially when the infestation is severe. In such cases, professional-grade mold and mildew removers might be needed.

A worker washes the tiles on the floor after grouting. Worker washing tiles after workA worker washes the tiles on the floor after grouting. Worker washing tiles after work

Why You Might Need a Commercial Cleaner

Cleaning grout can be a challenging and time-consuming task, especially when dealing with stubborn mold. You might spend hours bent over your shower tiles, scrubbing tirelessly, but still find traces of mold ingrained in the grout lines. Sometimes, no matter how much vinegar, bleach, or elbow grease you put into it, mold seems to stick around like a permanent guest. 

Professional cleaning services, like Enviro-Master Services, have access to heavy-duty mold and mildew removers that can get between every grout line, penetrating deep into the pores of your grout, something that off-the-shelf cleaning products cannot always achieve. 

Additionally, scrubbing your shower or bathroom tiles can be both physically demanding and tedious. Commercial cleaners are trained to handle these tasks efficiently and effectively, saving you both time and effort. They can also offer a more long-term solution by treating your grout with professional-grade solutions that not only remove existing mold but also help prevent future mold growth.

A regular cleaning regime by professionals ensures that this pesky problem stays at bay, giving time back to your day. Our company specializes in such services, and we offer a wide range of cleaning solutions including commercial-grade tile and grout cleaning. We can help keep your environment healthy and bathrooms clean.

If you’re searching for an effective solution to tackle your mold issue without sacrificing your spare time, contact Enviro-Master Services for a free quote and speedy resolutions!

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