When you walk into a home, the smell is one of the first things you notice, even before you fully take in the layout or the finishes. Most buyers do not realize how much odors can reveal about a home’s condition. As real estate professionals, we encourage buyers to pay close attention to unusual smells, because even small odors can signal bigger problems hiding beneath the surface. Knowing which smells to take seriously can save you time, money, and future headaches.

Pay Attention to Musty or Damp Smells
A musty smell is one of the most common red flags buyers encounter. It often indicates moisture issues, which can lead to mold, mildew, or leaks behind walls. Basements, bathrooms, and laundry rooms are the usual suspects, but musty odors anywhere in the home deserve attention. Moisture problems can be costly to fix and may affect your ability to move in right away. If you smell dampness, a deeper inspection is essential.

Take Note of Strong Pet Odors
Pet odors may seem harmless, but strong smells can mean damage beneath the surface. Carpet padding, subflooring, and baseboards may have absorbed odors over time. While fresh paint or air fresheners may hide the smell during a showing, it often returns later. Removing severe pet odors can require replacing flooring and treating the subfloor. If the smell is strong, consider how much work you are willing to take on after moving in.

Recognize When Chemical Scents Are a Warning
Overly strong air fresheners, candles, or chemical scents may be used to hide something. Sellers sometimes mask odors from smoke, mold, or pets instead of fixing the underlying issue. A home that smells too artificially clean or heavily fragranced may need a closer look. Pay attention to areas where the smell is strongest and consider whether the home needs deeper inspection before you proceed.

Be Cautious of Sewer, Drain, or Gas Odors
Sewer or drain smells can indicate plumbing problems, clogged lines, or issues with the home’s venting system. These repairs can be expensive, and some require urgent attention. Gas odors are an immediate safety concern and should never be ignored. If you detect any smell resembling rotten eggs, leave the home and notify your agent and inspector immediately. Safety always comes first during a showing.

Trust Your Instincts When Something Seems Off
Even if you cannot identify the source of an odor, it is worth investigating if something feels off. Strange smells can come from water damage, pests, HVAC issues, or outdated systems. Bring up any concerns to your real estate professional so they can guide you toward further inspection. Your nose can be one of your best tools when evaluating a home’s true condition.

Small smells can reveal big problems. When you know which odors to take seriously, you can avoid homes with expensive hidden issues and focus on properties that offer both comfort and long-term value.