Curtain washing is straightforward when the fabric type matches the wash method. The most common mistakes — shrinkage, colour bleeding, and liner damage — all stem from using the wrong temperature or cycle. This guide covers the main fabric categories found in Canadian homes and what each requires.
Before You Start: Check the Care Label
Every curtain panel sold in Canada after 1972 is required under the Textile Labelling Act to carry a care label. The label uses standardised symbols defined in ISO 3758 — a washtub icon for machine washing, a hand for hand-wash only, and a circle for dry-clean. When the label says dry-clean only, washing at home carries real risk of permanent damage; this article covers fabrics that can be washed at home.
If the label is missing — common on older or custom-made curtains — test a small inconspicuous section first: dampen it, press with a warm iron, and check for colour transfer or distortion before proceeding.
Fabric-by-Fabric Washing Instructions
Cotton Curtains
Cotton is among the most forgiving curtain fabrics but is susceptible to shrinkage when washed above 40°C (104°F). A cold-to-warm cycle at 30°C on a gentle or delicate setting preserves the weave. Use a mild detergent without enzymes, which can weaken cotton fibres over time.
- Remove hooks and rings before washing — they can snag inside the drum.
- Turn panels inside-out to reduce abrasion on the face fabric.
- Use the lowest spin speed available to reduce creasing.
- Hang to dry while still slightly damp; the weight of the fabric pulls out most wrinkles.
Canadian context: Cotton curtains in Alberta and Saskatchewan homes face extreme low-humidity winters. Static cling is common after tumble drying; adding a fabric softener sheet or hanging to air-dry is recommended.
Polyester and Polyester Blends
Polyester is dimensionally stable and tolerates a regular machine wash at up to 40°C. It dries quickly, resists wrinkles, and handles repeated washing well. The main concern is pilling on the face when washed with rougher fabrics; wash curtains separately or in a mesh laundry bag.
- Cycle: normal or permanent press.
- Temperature: 30–40°C (86–104°F).
- Drying: tumble dry on low heat for 20–30 minutes, then hang to finish.
Linen
Linen shrinks noticeably at higher temperatures and loses its characteristic texture if machine-agitated vigorously. Hand-washing in cool water, or using the delicate cycle at 30°C, is the safest approach. Lay flat or hang to dry — never tumble dry linen curtains unless the label explicitly permits it.
Linen does wrinkle heavily. Iron on the reverse side while still damp, using a steam setting appropriate for linen.
Sheer and Voile Fabrics
Sheers are typically polyester or a polyester-cotton mix, but their open weave makes them easy to distort. Place them in a mesh laundry bag or pillow case before washing. Use the delicate cycle at 30°C and no spin, or hand-wash in cool water with a small amount of gentle detergent.
Rehang sheers while they are still damp — this is the most effective method for achieving a wrinkle-free result without ironing, and it avoids the risk of heat damage.
Velvet and Weighted Fabrics
Velvet curtains — including cotton velvet, polyester velvet, and velveteen — should not be machine-washed at home. The pile is easily crushed, and wet velvet is fragile. Spot-clean stains with a damp cloth and mild soap, and use a soft bristle brush to restore the pile direction after drying. For deep cleaning, professional dry cleaning is the standard approach.
General Washing Steps
- Remove curtains from the rod. Detach any clip rings, hooks, or heading tape weights.
- Shake or vacuum the panels lightly to remove loose dust before washing.
- Check pockets and hems for any stiffening material (buckram or interfacing) — these usually need to be removed if not sewn in permanently.
- Load one or two panels at a time to avoid overloading the machine.
- Select the appropriate cycle and temperature per fabric type above.
- Hang or lay flat to dry as soon as the cycle ends.
Drying and Ironing
Air drying is the safest method for all curtain types. Hanging panels on the curtain rod while still damp (not soaking wet) allows gravity to straighten the fabric and remove wrinkles naturally. Rehang at the correct drop length so the hem sits correctly when dry.
If tumble drying is used for polyester, remove promptly and rehang to prevent deep-set creases from forming as the fabric cools.
For ironing, always work on the reverse side of the fabric. Use steam for cotton and linen; a dry iron on a low setting for polyester and sheers. Velvet should not be ironed — use a steamer held several centimetres away from the pile.
How Often to Wash
Frequency depends on the room. Curtains in kitchens accumulate grease and odours faster than bedroom or living room panels. A reasonable general guideline, consistent with care advice from organisations such as the American Cleaning Institute, is:
- Kitchens and bathrooms: every 3–4 months.
- Living rooms: every 6 months.
- Bedrooms: once per year, or when visibly soiled.
In cities with higher air particulate levels — such as during wildfire smoke season, which affects British Columbia and Alberta in summer months — more frequent washing may be appropriate.
Related: Curtain Hemming and Length Adjustment · Restoring Sun-Faded Curtains