Old houses have a certain charm—beautiful architecture, vintage woodwork, and a sense of history. But they often come with an unpleasant musty smell that can make living there uncomfortable. If you’ve just moved into an old home or are trying to refresh an inherited property, you need effective solutions to make it smell fresh and inviting.
In this guide, we’ll explore the best ways to remove musty odors, prevent them from coming back, and keep your old house smelling amazing.
1. Identify the Source of the Odor

Before tackling the smell, you need to identify the root cause. An old house can smell due to multiple reasons:
Common Causes of Bad Smells in an Old House
- Mold and mildew – Moisture buildup leads to fungal growth, which causes a strong musty smell.
- Dust accumulation – Old houses often have decades of dust trapped in carpets, walls, and furniture.
- Old wood and furniture – Wooden materials absorb odors over time, especially if exposed to moisture.
- Pet or smoke residue – If previous owners had pets or smoked indoors, the smell can linger in walls, carpets, and upholstery.
- Poor ventilation – Lack of fresh air can trap stale smells inside.
How to Locate the Problem
- Sniff test – Walk through each room and try to pinpoint where the odor is strongest.
- Inspect hidden spaces – Check basements, attics, behind furniture, and inside closets.
- Look for mold – Check walls, ceilings, under sinks, and in damp areas for visible mold spots.
- Examine old carpets and upholstery – These materials can hold odors and may need deep cleaning or replacement.
Once you’ve identified the source, it’s time to start freshening up your home.
2. Improve Air Circulation and Ventilation
Fresh air is the best natural deodorizer. Improving ventilation will help eliminate stale odors and keep your home smelling fresh.

Tips for Better Ventilation:
✅ Open windows and doors daily – Let fresh air in for at least 15–30 minutes each day.
✅ Use exhaust fans – Turn on fans in bathrooms, kitchens, and basements to improve airflow.
✅ Install air purifiers – HEPA filters remove dust, allergens, and odors from the air.
✅ Use dehumidifiers – Reduce excess moisture, which can contribute to mold growth and musty smells.
✅ Place houseplants indoors – Plants like aloe vera, peace lilies, and spider plants naturally purify the air.
By improving air circulation, you’ll prevent odors from lingering and create a fresher indoor environment.
3. Deep Clean the Entire House
A thorough cleaning is essential for eliminating old house smells. Deep cleaning will remove dust, mold, and other odor-causing substances.

Cleaning Checklist:
Walls and Ceilings
🧼 Wipe down walls with a mixture of white vinegar and water.
🧼 Use a mild detergent to clean painted walls.
🧼 If there’s wallpaper, consider replacing it if it holds a musty odor.
Floors and Carpets
🧼 Sweep and mop hardwood floors using a wood-safe cleaner.
🧼 Shampoo carpets or sprinkle baking soda, let it sit for 30 minutes, then vacuum thoroughly.
🧼 Consider replacing old carpets if the smell persists.
Furniture and Upholstery
🧼 Steam clean sofas, chairs, and mattresses.
🧼 Sprinkle baking soda on fabric furniture before vacuuming.
🧼 Wipe down wooden furniture with a vinegar-water solution.
Windows and Curtains
🧼 Wash curtains or replace them if they are too old.
🧼 Clean window sills and glass using a vinegar-water mix.
Deep cleaning will remove built-up odors and refresh your home instantly.
4. Eliminate Mold and Mildew Smells
Mold and mildew are common in older homes and contribute to musty odors.

How to Remove Mold Smells:
✅ Use vinegar – Spray white vinegar on affected areas and let it sit before scrubbing.
✅ Try baking soda – Sprinkle baking soda in damp areas to absorb moisture and odors.
✅ Use hydrogen peroxide – A natural mold killer that can be sprayed on moldy spots.
✅ Improve ventilation – Reduce humidity levels to prevent future mold growth.
For severe mold issues, consider hiring a professional mold removal service.
5. Natural Ways to Keep Your Home Smelling Fresh

Once you’ve eliminated bad odors, keep your house smelling fresh with these natural solutions:
🌿 Use essential oils – Add a few drops of lavender, lemon, or eucalyptus oil to a diffuser.
🌿 Simmer herbs and spices – Boil cinnamon sticks, cloves, or citrus peels for a fresh scent.
🌿 Place bowls of vinegar – Absorbs lingering odors overnight.
🌿 Use activated charcoal – Helps absorb bad smells naturally.
🌿 Make DIY air fresheners – Mix baking soda with essential oils and place in open containers.
Conclusion
Bringing fresh air and pleasant scents into an old house doesn’t have to be difficult. By identifying the source of bad odors, improving ventilation, deep cleaning, and using natural deodorizing methods, you can make your home smell clean and inviting.
Regular maintenance, proper humidity control, and a few fresh-smelling tricks will ensure your old home always smells amazing.
FAQs
1. How do I make my old house smell fresh naturally?
Open windows, clean thoroughly, use baking soda and vinegar, and introduce houseplants to naturally freshen up your space.
2. What causes a musty smell in an old house?
Common causes include mold, mildew, dust buildup, poor ventilation, and old carpets or upholstery that have absorbed odors over time.
3. How can I remove cigarette smells from an old house?
Wash walls, floors, and furniture with a vinegar solution, use air purifiers, replace carpets, and repaint walls if needed.
4. Can essential oils help remove bad smells from an old house?
Yes! Essential oils like lavender, lemon, and eucalyptus can mask odors and create a pleasant aroma. Use them in diffusers or DIY air fresheners.
5. How often should I deep clean an old house to prevent bad smells?
Deep cleaning every 3–6 months is recommended. Regular dusting, vacuuming, and air circulation will help maintain freshness.