Is It Worth Altering Cheap Clothes?

This is a question we are asked honestly and often. The answer is: sometimes yes, sometimes no — and a good tailor will tell you which. Here is how to think through the decision before spending money on an alteration.

The Basic Value Test

The starting point is simple: if the alteration costs more than the garment is worth to you, do not alter it.

A £25 trouser hem on a £15 pair of trousers from Primark is almost never worth it — the garment itself has limited lifespan and the alteration cost exceeds replacement. A £25 trouser hem on a £90 pair of H&M trousers you wear weekly and love the fabric of? That is probably worth doing.

A useful rule of thumb: if the alteration cost is more than 40–50% of the garment's replacement cost, think twice.

When It Makes Sense

• You wear it often. Frequency of use is the key variable. A basic alteration on something you wear three times a week pays for itself quickly in wearability and comfort.
• The fabric is decent despite the price. Many mid-range high-street brands (Zara, & Other Stories, COS) use better fabrics than their price suggests. These are worth altering.
• The alteration is simple. A trouser hem, a basic waist take-in, or a dress shortening are low-cost, high-return alterations that make sense on most garments.
• There is sentimental value. A garment with emotional significance is worth altering even when the economics are marginal.

When It Does Not Make Sense

• Very poor fabric quality. Thin polyester or plasticky fabric cannot hold a crisp seam line and will not improve with alteration. The garment will still look cheap after the alteration, just a different size.
• The garment has structural problems. Cheap construction — poorly set sleeves, badly fused interfacing, uneven stitching — cannot be fixed by a fitting alteration. These are structural issues, not fit issues.
• The alteration required is complex. If a cheap garment needs shoulder work or relining, the alteration cost will approach or exceed the value of a better garment that fits.
• No seam allowance exists. Very cheap garments are often cut right to the edge with no reserve fabric. Letting out or adjusting substantially may simply not be possible.

The Middle Ground — High Street Suits

Suits from ASOS, Next, H&M, Zara, or similar retailers occupy interesting territory. The fabric is often decent. The construction is basic but functional. And these suits are almost universally worth having basic alterations done: trouser hem, leg taper, waist suppression on the jacket. For a total cost of £60–100, a £150 high-street suit can be made to look like a £400 garment. This is one of the best value propositions in dressing well.