Repair and alteration: darn, reweave, tailor

A hole is not the end of a garment; it is a negotiation. The cheapest, lowest-carbon clothing decision available is to repair what you own, and the techniques range from a ten-minute darn to a specialist reweaving that is invisible to the eye. Knowing which repair fits which fault, and where a tailor's skill is worth real money, keeps good cloth in service and keeps you from paying twice for the same shirt.

This is a practical map of the repair toolkit. We cover darning and Swiss darning for knits, patching for worsted and denim, reweaving for damage in woven cloth, and the alterations, hems, waists, shoulders, that change fit. The aim is to extend the life of the wardrobe with the right technique at the right cost, and to know when the honest move is to pay a professional.

Darning and Swiss darning for knits

Darning is the rebuilding of a knit by weaving new yarn across a hole on a darning egg or mushroom, filling the gap with a grid of warp and weft threads and then binding them. It is strong and honest and leaves a visible mend, which on workwear and country knits is a feature, not a flaw. Swiss darning, or duplicate stitch, is subtler: you follow the existing knit stitch with a new thread so the repair mimics the stitch pattern and nearly disappears, ideal for a small hole or a thin spot in a fine cashmere or merino.

Both need a yarn matched in fibre and weight; use the same fibre so the mend ages the same way, and a shade near the original. The work is slow but cheap, and a well-darned elbow outlasts the surrounding cloth. For a prized knit, Swiss darning preserves the hand; for a beloved but rough sweater, a classic darn announces its history. Neither requires a machine, and both return a wearable garment for the price of an evening.

• Darning: woven fill on a mushroom, strong, visibly mended
• Swiss darning: duplicate stitch, near-invisible, best for fine knits
• Match fibre and weight so the mend ages with the cloth

Patching worsted and denim

A hole in woven cloth, a torn knee, a frayed cuff, is repaired by patching: a piece of like cloth set behind the damage and stitched, or a visible patch applied on top for a deliberate look. Denim takes an indigo-on-indigo patch and a chain-stitch run; worsted takes a wool patch behind the break with a fine slip-stitch so the face stays clean. The patch should be pre-shrunk and same-weight, or it puckers after the first wash.

For a thinning seat or elbow before it breaks, an internal patch reinforces invisibly and buys years. The visible patch, once a mark of poverty, is now a style, and a well-executed one on raw denim reads as care rather than mend. Either way, patching converts a total loss into a garment with character, and the cost is a scrap of cloth and an afternoon, against the price of replacement.

A visible mend on good cloth reads as care; an invisible one reads as thrift. Both outrank a landfill.

Reweaving: the invisible fix

Reweaving is the specialist art of rebuilding a damaged woven cloth thread by thread so the repair vanishes. In a 'stitch' reweave, the frayed edges are stabilised and new warp and weft are woven in by hand across the void; in a 'fusion' or heat-bonded reweave, threads are interlocked and set, faster but less flexible. A skilled reweaver can close a moth hole or cigarette burn in a suit shoulder so that, a hand's breadth away, no one sees the work.

This is not a home skill; it is commissioned, and it is worth it on tailored clothing whose cloth cost more than the labour. A rewoven suit jacket returns to wearable invisibility for a fraction of replacement, provided the surrounding cloth is sound. The limit is size: a reweave beyond a few centimetres strains even a master, and a weakened whole cloth should be patched or retired. Spend the fee where the garment justifies it; skip it on a twenty-dollar shirt.

Alterations that change the fit

Alteration is repair of fit rather than fault. A hem is the cheapest, highest-value change: trousers shortened, sleeves cut, a dress taken up. Taking in a waist or side seam is straightforward on most garments; letting out depends on whether the maker left seam allowance, better houses do. Shortening a jacket body is possible; lengthening is not. The shoulder is the one structural line that is expensive and sometimes impossible to redo well, because it rebuilds the canvas and the drape.

A good tailor is worth the fee precisely on the shoulder, the sleeve pitch and the break of a trouser, where millimetres read as fit. Bring the shoes you will wear and the shirt you will pair, because those set the lengths. The rule: alter the cheap things yourself, trust a tailor with the structured ones, and buy with alteration in mind, leaving allowance for the body you will have. Fit is the cheapest luxury and the tailor is how you buy it twice.

• Hem and waist: cheap, high value, do or commission freely
• Shoulder: structural, costly, sometimes impossible to redo well
• Bring the shoes and shirt; they set every length the tailor cuts

The tools worth owning at home

A small mending kit pays for itself in one saved garment: pins, a seam ripper, a selection of needles, cotton and silk thread, a darning mushroom, a set of wool and cotton yarn for Swiss darning, and iron-on interfacing for a quick patch. A thimble spares the finger; a good light spares the eye. None of it costs more than a single dry-cleaning bill, and all of it turns a small fault into a ten-minute fix.

Learn three stitches, the running stitch for a seam, the slip stitch for a hem, the duplicate stitch for a knit, and you can handle most household mends. The specialist's tools, the reweaver's loom, the tailor's press, stay with the professional; your job is the daily maintenance that keeps garments out of the 'too far gone' pile until they genuinely deserve the expert.

When the tailor is worth the fee

Pay a professional when the garment's cloth and construction exceed your hand: a reweave in a bespoke suit, a shoulder rebuilt on a jacket, a lined garment let out, a zipper replaced in a tailored seam. Pay when the saving against replacement is large, which on tailored wool and good denim it almost always is. Decline the fee on a disposable item; a three-dollar tee with a hole is not worth a five-dollar mend.

The equation is simple: cost of repair versus cost of replacement, weighted by how much you liked the original. A beloved but worn jacket is worth reweaving; an indifferent shirt is not. Spend the tailor's fee where it preserves cloth you chose, and spend your own evening on the small mends, and the wardrobe thins by wear, not by neglect.

Visible mending as a chosen look

Repair has moved from shame to statement. The Japanese sashiko and the Western 'visible mending' movement wear the darn as a mark of use rather than a confession of poverty, and a traced mend on a favourite denim or a coloured Swiss darn on a faded knit reads as character. The technique is the same as the invisible mend; only the yarn colour and the intent differ, and the result can be more beautiful than the original cloth.

For the wardrobe, this frees you from the fear of the first hole. An elbow given a contrast darn becomes a feature; a knee patched in a second denim becomes a design. The skill is learnable in an evening and the tools are cheap, and the garment stays in service with a story attached. Mending visibly is not an excuse for neglect but a choice to keep cloth with affection, and it is the most personal form of sustainability a dresser can practise.

• Sashiko and visible mending wear the darn as character
• Contrast yarn turns a hole into a feature, not a flaw
• Learnable in an evening; the most personal sustainability there is

Repair is the most overlooked economy in dress, and the techniques are older and cheaper than any replacement. Darning and Swiss darning return knits to service, the first proudly visible, the second nearly gone; patching reinforces woven cloth with a scrap and an afternoon; reweaving makes a suit whole again invisibly in a specialist's hand. Alteration fixes fit, from the ten-dollar hem to the structural shoulder that justifies a tailor's fee, and the equation is always repair cost against replacement cost weighted by affection. Keep a small kit, learn three stitches, and commission the expert where the cloth earns it. The garment already in your closet is the most sustainable one you will own, and the mend is how you keep it there.