Bathroom Cleaning: Mold and Mildew Removal

Here at the Twin Home Experts, we get tons of calls from Los Angeles residents needing assistance with removal of black mold and mildew inside their shower walls, tub and tile caulking. There is so much information out there, from harsh chemicals to natural ingredients such as vinegar, baking soda & peroxide. We’ve tested them all, and truthfully they do not work.

Bleach in particular, is the most advertised cleaning agent. Yes, it might look clean the first time you use it, but the mildew always just comes right back.

Why do I have mold and mildew in my shower between tiles? – Tina P., Glendale, CA

The reason that you’re getting fungi growth between tiles is that the caulking has become compromised. Because of that, it has essentially become a food source for molds to grow on.

Because the caulking is porous and it’s a moist environment, it becomes a perfect feeding ground for all types of molds.

Should I test it to determine if it’s a bad mold? – Shez P., Santa Monica, CA

We don’t like wasting our clients money on testing if there is already visible mold. We believe in putting that money towards cleaning it. If you want to test, we recommend testing after it’s been cleaned, to verify if the mold is all gone.

mold and mildew

What is the best way to get rid of it once and for all? -Alex P., Burbank, CA

The best way to remove mold and mildew from the grout and caulking is to completely remove it with a router or grout removal tool. After that, re-caulk or re-grout it. Once you have applied the new grout, wait for 48 hours for thorough drying and curing. Use an antimicrobial caulking!

Is there a difference between mold and mildew? – Cindy S., Malibu, CA

There is no difference, they’re both a fungi. Depending on one’s individual immune system, they both can cause an allergic reaction.

What are the best products to use for mold and mildew removal? -Dave M., Monrovia, CA

The most effective products for removal of mold and mildew are products that have a strong antimicrobial ingredient. One product you can use, but be very cautious and use the proper personal protective gear, such as eye wear, gloves and plastic chemical suit, is RMR.


Keep your bathroom well ventilated when showering, and remove the caulking and grout for a permanent solution by re-applying an antimicrobial caulking.

Removing Mold And Mildew From My Shower
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