Support Structure

• If load-bearing walls are removed, they may compromise the structural integrity of your home. These walls support a lot of weight and any tampering could result in a collapse. If you're not sure, check with a professional contractor.
  
  

Health Hazards

• The presence of mold, radon and asbestos are sometimes found underneath a home. These components can build up and become a health hazard. According to The U.S. Environmental Protection Agency, radon is known to cause 21,000 lung cancer deaths each year. In addition, The World Heath Organization (WHO) has acknowledged that radon is a worldwide health risk in homes.
  
  

Live Wires

• The removal of drywall and ceiling material leaves electrical wires exposed. This is a safety hazard due to the risk of electrocution or fire.
  
  

Contractors

• Some contractors out there are unscrupulous. Hiring a bad contractor could result in an unfinished project, faulty construction, "unforeseen" costs, or worse, skipping town with your money. To prevent this, it's important to do your research in examining their past and qualifications.
  
  

Pest Control

• Pests such as termites can weaken a home's structure by chewing or nesting, and also can carry infectious diseases.