Common "surprises" inspections uncover include: poor exterior grading, which can lead to basement flooding or leaking; roof leaks; improper wiring; plumbing issues; and heating system malfunctions.
The seemingly every day problems can often prove to be the biggest disasters -- and deal-breakers.
Most of the issues inspectors encounter are relatively simple and can be easily dealt with. But sometimes the cost of fixing these small things can be major. One way the potential buyer can protect him or herself is to make sure, when making an offer on a house, the contract includes a home inspection contingency. This is to ensure, if a costly problem is found, you can require the seller make the repair before the deal closes, negotiate a price reduction to make up for the cost of making the repair yourself, or go look at some different houses altogether.
If a potential buyer balks at the cost of hiring a professional inspector, they should realize that it's a small price to pay, considering what you're gaining. Inspectors tend to base their fee on the square footage of the home being inspected, as well as how complicated the job is...
Buyers can find a certified inspector through the American Society of Home Inspectors (ASHI).