That Musty Smell in Your Home? It Could Be Mold — and It’s Riskier Than You Think

Have you noticed a persistent musty or earthy smell in your home — especially in basements, bathrooms, or near windows and walls? That odor is often one thing: mold. And it’s more than just unpleasant — it could be a warning sign of hidden damage and serious health risks.

Why Does Mold Smell?

Mold gives off microbial volatile organic compounds (MVOCs) as it grows and digests organic material like drywall, wood, or insulation. These MVOCs create that distinct damp, musty smell — like wet socks, old books, or rotting leaves.

If you’re smelling it, there’s likely active mold growth somewhere in your home — even if you can’t see it.

What That Smell Might Be Telling You

That smell could be coming from:

• Mold growing behind walls or under floors

• Moisture trapped in insulation or framing

• A slow leak in your roof, window, or plumbing

• Poor ventilation causing condensation buildup

In most cases, the smell is your home’s way of telling you: something is wrong.

The Hidden Risks of Mold

1. Health HazardsEven if you don’t see it, mold spores travel through the air and can trigger:

• Allergies and asthma

• Sinus infections and chronic coughing

• Headaches and fatigue

• Respiratory issues — especially in kids and seniors

2. Structural DamageBehind that odor, mold could be silently eating away at:

• Drywall

• Wood framing

• Flooring and subflooring

• Insulation

The longer it’s left untreated, the more extensive (and expensive) the damage becomes.

3. Property Value & Insurance IssuesMold problems can lower resale value, raise insurance premiums, and in some cases, void parts of your coverage if left unresolved.

What to Do if Your Home Smells Musty

1. Don’t Just Cover It UpAir fresheners and dehumidifiers don’t solve the problem — they just mask it. If the smell persists, it’s time to investigate.

2. Look for Signs of MoistureCheck around windows, baseboards, under sinks, and in corners for water stains, peeling paint, or soft drywall.

3. Call a SpecialistA building envelope or remediation expert can trace the source of moisture, identify hidden mold, and fix the problem — not just the symptoms.

Trust Your Nose — Then Take Action

That musty smell isn’t just an inconvenience — it’s a warning. The sooner you find the source and fix it, the better for your health, your home, and your peace of mind.

Suspect mold in your home?Our team specializes in leak detection, building envelope repair, and safe mold remediation. Reach out today for an inspection.