The Alteration Edit: Three Tiny Fixes That Make High-Street Clothes Look Considered

There is a particular kind of wardrobe frustration that no amount of browsing can fix. The trousers are almost right. The blazer is nearly there. The dress has the colour, the fabric and the price tag you wanted, but something about the way it hangs makes it look a little… shop-floor. Often, that something is fit. And fit, happily, is one of the few things on the high street you can actually buy for around a tenner.

A local tailor is not an indulgence reserved for wedding suits and inherited coats. Most neighbourhood dry cleaners have an alterations desk, most towns have a seamstress working above a shop or behind a market stall, and most of them can do more for a £35 pair of trousers than another £35 pair of trousers ever will. The trick is knowing which fixes are worth paying for, which fabrics can take them, and what to say when you hand over the garment.

Start at the hem — it is the cheapest illusion in fashion

Trouser hems are the first place to look because the difference is immediate. A pair that pools around the ankle can make even a decent wool blend look like borrowed school trousers; a clean hem that skims the shoe makes the same pair look deliberate. Ask for a simple turned-up hem, ideally keeping the original stitching if the trouser has a visible topstitch you like. Most local tailors will charge somewhere between £8 and £15 for a straightforward trouser hem in 2026, with London prices nudging the upper end.

Wear the shoes you plan to pair with the trousers when you go for a fitting. This sounds fussy; it is not. A hem that works with trainers will look different with a block heel, and the tailor can only pin accurately if they can see the finished line. For wide-leg trousers, ask them to preserve the drape rather than simply chopping length — a good tailor will know what that means, and a rushed one might not. Lined trousers should have the lining hemmed separately, which may add a few pounds.

Worth doing on: wool-blend trousers, jeans with a stubborn stack, simple skirts, and any pair you already love but avoid wearing. Not worth doing on: anything so cheap that the alteration costs more than the garment and the fabric is already pilling. A useful rule of thumb is to keep the fix under a quarter of the item’s price, unless the piece is something you will wear weekly.

The waist tuck: less gapping, more shape

A waist that gapes at the back is one of the quietest style saboteurs. It makes belts look decorative rather than functional, and it makes trousers feel borrowed. Taking in a waist is usually a £12–£22 job depending on the construction. On trousers and skirts, a tailor will often work through the side seams or add darts; on dresses, they may take in the centre back seam. Ask them to keep the pockets usable if there are any — over-taking a waist can pull pockets open and make the front sit strangely.

This is also where fabric matters. A sturdy cotton, a wool blend, a denim or a lined crepe will usually respond well. A very flimsy viscose or a busy print with a tricky repeat can be more of a gamble, because the seams may not sit flat and the pattern can shift. If the waist needs taking in by more than about five centimetres, the tailor may need to do more than a simple tuck, which pushes the price up. At that point, ask yourself whether you love the piece enough to justify it.

Worth doing on: jeans that fit everywhere but the waist, pencil skirts, simple shift dresses, and blazers with a slightly boxy middle. Not worth doing on: coats with complicated linings, heavily structured jackets, or anything you are only keeping because it was reduced.

Sleeves: the difference between ‘borrowed’ and ‘bought’

Sleeve length is strangely emotional. A blazer sleeve that ends at the wrong point can make your arms look shorter, your hands look lost, and the whole outfit look as if you borrowed it from someone with different proportions. Shortening sleeves is usually £10–£20 for a simple job. It gets more expensive if the sleeve has working buttonholes or a complicated cuff, because the tailor has to move buttons and rework the finish.

For knitwear, be cautious: shortening a ribbed cuff or a fine jersey sleeve is not always straightforward, and the result can look slightly homemade. For woven shirts, blazers and dresses, it is often one of the highest-impact fixes you can buy. Take the jacket or dress with the layer you would normally wear underneath — a fine knit, a shirt, a slip dress — so the sleeve is measured over real life rather than a T-shirt.

Worth doing on: blazers you already own, shirts with sleeves that swallow your hands, and dresses where the sleeve length throws off the whole line. Not worth doing on: very cheap stretchy jersey where the fabric will not press cleanly, or anything with a cuff detail so complex that the alteration costs more than the garment.

What to say at the counter

You do not need technical vocabulary to get a good result. Bring the garment, wear the shoes, and be specific about what bothers you: ‘the waist gaps at the back’, ‘these pool too much with flats’, ‘I want the sleeve to end at my wrist bone’. Ask what they would do, and ask for the price before they start. A good tailor will tell you if a fix is not worth it — and that advice is worth the trip on its own.

Turnaround is usually three to seven days, though party season can stretch it. If you are altering something for a specific event, say so at the counter. And do not expect a £10 note to cover everything: a simple hem might, but a waist and sleeves together will usually be £25–£35. Think of it as paying for the version of the garment you actually wanted, rather than buying another one that fits the same average body the last one did.

The point is not to pretend high-street clothes are designer. It is to remove the little tells — the pooling hem, the gaping waist, the sleeve that sits a centimetre too low — that make a good piece look unfinished. Fit is the loudest signal in an outfit, and a decent local tailor is one of the few genuinely affordable ways to turn it up.