How do I fix discolored grout?

Discolored grout can often be restored with proper cleaning, but the method depends on whether it's surface staining or deeper deterioration. Start with gentle cleaning methods before moving to stronger solutions.

Surface staining from soap scum, mildew, or everyday use can usually be cleaned with a paste made from baking soda and water. Apply the paste, let it sit for 10-15 minutes, then scrub with an old toothbrush and rinse thoroughly. For tougher stains, try a 50/50 mixture of white vinegar and water, but avoid this on natural stone tiles as the acid can damage them.

Mold and mildew discoloration requires a stronger approach. Use a commercial mildew remover or a diluted bleach solution (1 part bleach to 10 parts water). Always ensure good ventilation and wear gloves when using these products. Apply the solution, let it work for the recommended time, scrub gently, and rinse completely.

Deep staining or deteriorated grout that doesn't respond to cleaning may need professional attention. In Ottawa's climate, bathroom grout faces constant moisture exposure, and older grout can become porous and permanently stained. If cleaning doesn't work, the grout may need to be removed and replaced - a job that requires proper waterproofing techniques to prevent water damage behind your tiles.

Prevention is key for maintaining grout appearance. Seal grout lines annually, ensure proper bathroom ventilation, and clean regularly to prevent buildup. If you're dealing with widespread grout issues or considering a bathroom refresh, a professional assessment can help determine whether spot repairs or a full renovation would be most cost-effective.

For extensive grout replacement or bathroom renovation needs, request a quote from Ottawa Bathrooms for professional waterproofing and tile work.