How to Clean Curtains and Drapes
Curtains and drapes trap an enormous amount of dust, pet dander, cooking odours, and allergens — they're one of the most effective air filters in a home, which is exactly why they need cleaning. Most Toronto homes go years without washing their window treatments. Here's how to do it properly without damage.
Step 1 — Check the Care Label
This is non-negotiable. Care label codes:
- Machine wash cold/warm: Safe for the washing machine — most cotton, polyester, and synthetic blends
- Hand wash only: Silk, velvet, and some linens — machine washing will cause shrinkage or damage
- Dry clean only: Heavily structured drapes, interlined curtains, or delicate fabrics — take them in
- No wash symbol: Spot clean or vacuum only
If the label is missing: assume the most conservative approach until you test on a small section.
Machine-Washable Curtains
- Remove hooks, rings, and any weighted hem tape before washing
- Shake outside to remove loose dust first
- Wash on a gentle/delicate cycle in cold or warm water (never hot — most fabrics shrink)
- Use a small amount of mild detergent — over-sudsing can leave residue that attracts dust faster
- Remove promptly when the cycle ends — sitting wet in the drum causes mildew odour
- Rehang while slightly damp — the weight of the curtain pulls out wrinkles as it dries in place. Never tumble dry unless the label specifically allows it.
Velvet Curtains
Velvet is usually dry-clean only. If the label says hand wash: use cold water and a small amount of gentle detergent, agitate very gently, rinse thoroughly, and roll in a towel to remove excess water. Never wring. Hang immediately to dry — lay flat if the fabric is very heavy. Brush with a soft-bristle brush in one direction while damp to maintain the pile.
Linen Curtains
Linen can shrink significantly. Use cold water and gentle cycle. If shrinkage is a concern, take to a dry cleaner instead — a 5% shrink on floor-length curtains is very noticeable.
No-Wash Freshening (Between Full Cleans)
For curtains that can't be washed often or need a quick refresh between cycles:
- Vacuum: Use an upholstery attachment on a low suction setting, working from top to bottom in long strokes
- Steam: A handheld garment steamer held 20–30cm from the fabric kills bacteria and removes odours and light wrinkles without washing
- Baking soda: Sprinkle lightly, leave 30 minutes, vacuum off — neutralizes cooking and pet odours
- Fresh air: On a dry Toronto day, open windows and let the curtains billow — fresh air removes a surprising amount of stale odour
How Often to Clean
- Light curtains (sheer, cotton): Every 3–6 months
- Heavy drapes: Every 6–12 months, or annually
- Freshen with vacuum or steam: Monthly
- Pet households: More frequently — pet hair and dander accumulate quickly in fabric window treatments
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