The cost of a professional deep clean ranges from $180 to $375, depending on the size of the home and what state it’s in. A 2,000-square-foot home, for example, can cost anywhere from $240 to $500 to deep clean, while a 3,000-square-foot home falls in the $360 to $750 range. 

If it’s been a while between cleanings, then further elbow grease is needed. To help with caked- on stains, create a solution of distilled vinegar and water, then soak the rough side of the sponge and scrub.

One of the best ways to prepare for a home biohazard cleanup is not to touch anything. Do not remove belongings, even if they are of value or importance, from the area as they are likely contaminated. It’s essential not to use any cleaning products of your own, as the cleaning company will be using chemicals that could interact with your products. 

One thing you can do to prepare is take pictures of your space and belongings that need to be cleaned, especially if you plan on filing a claim with your insurance company. In addition, take time to make a list of items that are valuable, sentimental, or otherwise important. The cleanup company must evaluate these belongings to make sure they are safe. 

The Centers for Disease Control and Prevention (CDC) recommends using an EPA-registered disinfectant product to disinfect a house properly. If such a product isn't handy, a strong bleach solution can disinfect high-touch surfaces. Before hiring a professional, be sure to discuss the type of chemicals and disinfectants they plan to use to ensure they’re safe for household use.