Clothing Alterations Guide

Almost every garment you own was made to fit a statistical stranger. Alterations are how a ready-made garment becomes your garment — and knowing what is possible before you visit a tailor is the difference between a satisfying fitting and an expensive disappointment. This page of the Garment Care, Repair & Alterations Guide sorts alterations into the routine, the difficult and the unrealistic, explains what happens at a fitting, and helps you judge when altering beats buying new. For the small fixes you can do at home first — hems that have dropped, buttons, seams — see our basic clothing mending guide.

Routine Alterations: The Everyday List

These changes use a garment's existing structure and seam allowances, and a competent tailor does them daily. Hemming — shortening trousers, skirts, dresses and sleeves — is the most common job in any alterations shop. Taking in a waist on trousers or a skirt, or the side seams of a dress or shirt, removes excess fabric where the garment already has seams to open. Tapering trouser legs or sleeves narrows them along their length. Shortening straps, replacing a broken zipper, and moving buttons are small jobs that freshen a garment's fit or function. Expect results on these to be predictable: the tailor can usually show you the finished fit with pins at your first visit.

Difficult, Expensive, or Impossible

Some requests fight the garment's construction. Shoulders are the frame of a jacket or dress: narrowing them means rebuilding the garment's structure, and the work often costs more than the garment justifies. Letting out is limited by the seam allowance hidden inside — usually a centimeter or two at most — because a tailor cannot create fabric that is not there. Changing a garment's fundamental proportions — turning a regular into a long, resizing by several sizes, moving pockets and closures after taking in a great deal — distorts the design's balance: pockets drift, patterns misalign, button stances land in the wrong place. Lengthening is capped by the hem allowance folded inside, and a visible crease line often betrays where the old hem sat. A good tailor will tell you plainly when a request falls in this territory; that honesty is a reason to keep them, not to argue.

What Happens at a Fitting

You will try the garment on — wearing the shoes and underlayers you plan with it — while the tailor pins the proposed changes and marks them with chalk. Move during the fitting: sit, walk, reach, bend. A fit that only works standing still in front of a mirror will annoy you in real life, and the fitting is the moment to discover that. Ask what the alteration will cost and how long it will take before the pins come out; reputable shops quote both on the spot. Prices vary widely by region, garment complexity and the shop, so treat any number you read as a ballpark that your local market may sit well above or below — the quote at your fitting is the real figure. Rush work near event seasons costs more and leaves less room for a second fitting, so bring formal garments in early.

Choosing and Briefing a Tailor

Start with one simple garment — a hem or a waist — before trusting a shop with tailored or sentimental pieces. Ask what work they do in-house, whether they specialize (bridal, menswear, leather and denim each have specialists), and whether a second fitting is included. Bring reference photos if you have a specific silhouette in mind, and be honest about how you wear the garment: a dress you dance in needs ease a portrait dress does not. If a quote seems to assume a simpler job than you described, say so — most disappointments in alterations are communication failures, not sewing failures. Understanding how sizes are constructed in the first place also helps set expectations; our sizing and fit guide explains why off-the-rack sizes vary so much between brands.