Altering a dress starts with a fitting and construction assessment, not cutting fabric. Some changes are straightforward; others affect proportions, drape and embellishment placement.
Prepare for the fitting
Wear the shoes and undergarments intended for the outfit. Explain problems during movement, not only in a photograph: length, waist, straps or comfort while seated. Avoid marking a cutting line yourself on a valuable garment.
Check before changing
| Requested change | What to assess |
|---|---|
| Shorter hem | Lace, borders, lining and proportions |
| Waist adjustment | Seam allowance and seam placement |
| Strap changes | Bodice support and overall drape |
| Zip replacement | Construction and fastening fit |
Do not assume every dress can be enlarged. Available seam allowance and material set limits; sewn or glued trims can complicate the work.
Coordinate with cleaning
Ask the atelier whether assessment and cleaning should precede the final fitting. Stains or unclear care instructions also need attention. For ceremonial clothing, see cleaning a wedding dress and delicate-fabric care.
Confirm availability, price and timing with the chosen provider. This guide is not an SPG offer covering every type of alteration.
Frequently asked questions
Can I set the hem by measuring it on a hanger?
A fitting and the chosen shoes matter. Fabric and posture can change apparent length and how the hem falls.
Can any dress be let out?
No. Seam allowances, stitching and construction limit the adjustment. Request assessment before relying on a particular result.
