Grout cleaning may be necessary when grout lines start looking dark, stained, or uneven in color, or when regular mopping and scrubbing no longer remove the buildup. Bathrooms, kitchens, entryways, and other tiled areas can collect dirt and residue in porous grout over time. Third Gen Painting & Renovations provides grout cleaning in Albuquerque, Rio Rancho, Los Lunas, Corrales, Bernalillo, Westgate Heights, West Mesa, South Valley, Mountain View, Pajarito Mesa, Atrisco, Old Town, Downtown Albuquerque, and Barelas.