There’s a very good chance, that if you have spots on your ceiling that are larger than a baseball, you’ve got a water leak somewhere and it needs to be fixed as soon as possible. I’m not suggesting that every spot on your ceiling is going to be from water damage.
If you’re the only one living in the house, this might be the case. If you’re not the only one in the house, make sure that someone else didn’t throw something on the ceiling, before continuing with your inspection. One of the worst things that you can do to a contractor is call them out to your home, only to find out that you’ve wasted their time.
Most water damaged ceilings that are painted white or even unpainted acoustic ceilings, will have light yellow spotting. In other words the spots will have a yellow or gold look to them Often larger spots will have rings of dark yellow around them.
If you do have a large water damage spots on your ceiling, it wouldn’t be a bad idea to check the area below for damage. If you have a wood floor, this water leak could cause the wood flooring to buckle up and if you have carpeting, you could find yourself with a mold problem.
You need to fix these leaks as soon as possible, to prevent further water damage to your ceiling and the rest of your home. I have seen a small roof leak that could have been fixed with one metal shingle for under $20, damage a small section of a home.
I’m not going to tell you how much it actually cost to repair the damage eventually, but any intelligent homeowners should have a pretty good idea. This isn’t the situation that you want to find yourself in, ever.