Due to high humidity levels, mold can sneakily build up in bathroom corners and crevices. Porous surfaces in the shower, such as grout and caulking, are especially vulnerable to mold and mildew growth ...

Question: I try to keep the bathroom as clean as possible, but the caulk around the bathtub and shower stall is black. Can you tell me how to clean the caulk or how to replace it if that is necessary?

Q. I want to replace a lot of caulking around the outside of my house, especially around windows and doors where I suspect there are air and water leaks. Much of the old caulk is cracked, discolored ...

Q. There are a couple of bathtubs in my house with old, dirty, cracked caulk around the joints. I want to replace the caulk, but the old stuff is so hard I haven’t been able to get it out. Can I put ...

Dear James: As hard as I try to keep it clean, there continues to be some dark mildew on the bathroom caulk. Should I just remove the old caulk and redo it? — Nick H. Dear Nick: You can continue to ...

Dear James: I try to keep the bathroom as clean as possible, but the caulk around the bathtub and shower stall is black. Can you tell me how to clean the caulk or how to replace it if that is ...