Seeing as how the kitchen and the bathroom are the two rooms that can add or subtract the most value from your home when you go to sell it, it would make quite a bit of sense to keep these two rooms in the best condition possible. These two rooms, however, are also subject to some of the most serious problems a homeowner can face: water damage and mold contamination, which tend to go hand in hand.

Keeping the shower and bath tub cleaned regularly of mildew (another word for mold) is a good idea to keep it in good condition.

Water damage occurs when water comes into contact with your floor or anything else in your home and is not cleaned up properly. It can cause floors to buckle and cause what is called "cupping" if you try to dry it out too fast, so cleaning up water spilled on hardwood floors (or in a home that has flooded) can be pretty tricky. Since mold likes to live wherever water damaged items are and wherever there is moisture, where there is water damage, mold usually follows on some level or another.

Water damage can also result from simply not having a vent installed in the bathroom or kitchen to allow the steam from bathing or cooking to escape the room. If not directed to the outside of the house through one of these vents, the steam will float up to the ceiling and soak it. Mold eventually starts to grow in these places and you will have to replace the drywall. Even if mold does not start to grow, you will probably have to replace the drywall eventually, anyway, because the paper on the front of the drywall will start to separate and sag. This is not dangerous, but it is unsightly.

Water damage also occurs when you allow a toilet or bath tub to overflow and you do not clean up the water sufficiently. If you have a vinyl or tile floor in the bathroom, this is a good thing. This creates a barrier between the water and the flood underneath, since the tile or laminate should not absorb much, if any, water. If you have carpet in your bathroom, this is a bad thing. Water will be absorbed by the carpet, the padding underneath, and depending on the amount of water on the floor, the base of the floor underneath will also be soaked. Mold will eventually start to grow if you do not make sure and get as much of the water up as possible.

In the kitchen, water damage and mold growth can be prevented by keeping a check on the plumbing going to your dishwasher and your sink. Having a vinyl and not a hardwood floor in your kitchen is the best thing, but spills need to be cleaned up as quickly as possible.