How to Wash Curtains Without Shrinking: What to Check Before You Start

The safest way to wash curtains without shrinking them is to check the care label and fibre composition first, then use only a cleaning method approved for that specific fabric. Heat, agitation and unsuitable drying can change the size or texture of some curtains.

1. Check the care label

Look for washing temperature, hand-wash or machine-wash instructions, drying restrictions and professional-cleaning requirements. Check the lining, blackout coating, heading tape and decorative details as well as the face fabric. If the label is missing, ask the supplier or a professional cleaner rather than guessing.

2. Understand the material

• Linen and cotton: may change size or texture if exposed to unsuitable heat or agitation.
• Polyester and blends: still require care appropriate to their construction and finish.
• Sheers: can snag or distort if handled roughly.
• Blackout or lined curtains: may require specialist cleaning because the backing can react differently from the face fabric.

Do not rely on appearance alone. Linen-look fabric is not necessarily pure linen, and similar-looking curtains may have different linings.

3. Use an approved washing method

If machine washing is permitted, follow the recommended cycle, load size and detergent. Avoid overloading the drum. For hand washing, support the fabric and do not twist or wring it. If professional cleaning is required, explain the fabric construction and any stains to the cleaner.

4. Avoid excess heat

Do not use hot water or a hot dryer unless the care instructions allow it. Support wet curtains so their weight does not stretch the fabric, and dry them using the approved method. Make sure they are fully dry before rehanging, especially in humid rooms.

5. Measure before and after

For made-to-measure curtains, record the finished width and drop before cleaning. After the curtains are fully dry, compare the dimensions using the same reference points. Significant shrinkage can affect hem clearance, coverage and appearance. Seek professional advice before washing valuable or difficult-to-replace curtains.

Mistakes to avoid

• Assuming all curtains are machine washable.
• Using high heat without checking instructions.
• Twisting delicate fabric to remove water.
• Ignoring lining and coating requirements.
• Rehanging curtains while excessively wet.

FAQs

Can shrunken curtains be restored?

A textile professional may be able to improve the result, but recovery is not guaranteed. Do not pull aggressively or apply heat.

Can blackout curtains be washed at home?

Only if the product’s care instructions permit it. Some linings and coatings can be damaged by water, heat or agitation.

How often should curtains be washed?

It depends on dust, occupancy, fabric instructions and the room environment. Gentle dust removal may reduce the need for frequent washing.

Read our curtain maintenance guide, compare blackout, sheer and dimout fabrics, and review the window treatment buying guide.