Work clothes are worn harder than anything else you own, and they fail in the same four places every time. Buy for those and the rest looks after itself.
A work wardrobe is worn more often, sat in longer and cleaned more than anything else you own. A dress worn twice a year can be made of almost anything. A blazer worn twice a week cannot.
The useful question is not where to buy work clothes, but what to look at once you are there. Everything below can be checked on a rack in under a minute.
The Four Places Work Clothes Fail
The lining, first and most often. A jacket lining splits under the arm and at the back vent long before the outer cloth wears out. Look for a lining that feels substantial rather than papery, and check the underarm seam is properly finished rather than overlocked and left.
The seat and the knee of a trouser, second. Both go shiny and then thin. A cloth with some weight and a little texture resists this for years longer than a flat, light one.
The buttonhole, third. A machine-worked buttonhole on a cheap jacket frays at the edge within a season. Look at the stitch density: tight and even lasts, loose and gappy does not.
The hem, fourth. A blind-stitched hem holds. A glued or fused hem comes away in the wash, and once it has, it rarely goes back neatly.
The Minute-Long Check
Turn the garment inside out. This tells you more than the price does.
Seams should be bound, French-seamed or neatly overlocked, with no loose threads and no raw edges. A raw overlocked edge inside an expensive jacket tells you where the corners were cut.
Check the pattern matches across the seams if there is a pattern. A check or a stripe that lines up at the side seam means the cutter allowed extra cloth, which is the clearest signal of care there is.
Pull gently at the shoulder seam of a jacket. It should have no give at all. A shoulder is the one part of tailoring that carries structural load, and it is also the part that cannot be altered afterward.
Feel the cloth between finger and thumb. It should spring back rather than stay creased. Crush a corner in your fist for five seconds and let go. What it looks like after that is what it will look like at four in the afternoon.
Turn it inside out before you look at the price. The inside of a garment is the honest part.
Where to Spend and Where Not To
Spend on the blazer. It is the most visible garment, the most structurally complex, and the hardest to fake. A good one lasts a decade and the difference is obvious across a room.
Spend on the coat, for the same reasons, and because it appears in more first impressions than anything else you wear.
Spend on one pair of shoes rather than three. Work shoes take more punishment than any other clothing and cheap ones fail at the sole, which cannot be repaired economically.
Do not spend on plain tops. Fine knits and simple blouses wear out at the elbow and the underarm whatever they cost, and a mid-priced one lasts nearly as long as an expensive one.
Do not spend on anything strongly of the moment. A trend-led piece in a work wardrobe gets worn for one season and then reads as dated in a way a plain piece never does.
Do not spend on a full suit unless your work requires one. Two separate trousers and a blazer give more outfits than a suit does, and they wear evenly rather than the trousers going before the jacket.
Making It Last
Rotate. A garment worn two days running will not recover its shape, and the fibres need a day to relax. Three trousers in rotation last more than three times as long as one worn daily.
Dry clean tailoring once or twice a year at most. The process is harder on a jacket than most people realize. Brush a wool blazer after wearing, spot clean what needs it, and air it overnight.
Hang jackets and coats on broad wooden hangers, never wire. A wire hanger creates a point of pressure at the shoulder and the damage does not come out.
Fold knitwear. A hanger pulls a knit out of shape at the shoulders within a season.
Deal with pilling early with a proper comb rather than a razor, which shaves the surface and makes the next pill worse.
The Wardrobe That Works
You need fewer garments than the stores would like. Two trousers, one skirt, two dresses with sleeves, three tops, one blazer, one cardigan, one coat, two pairs of shoes.
Choose one dark neutral and make everything agree with it, so any top goes with any bottom. Buy the strongest blazer and coat you can afford, keep everything else mid-priced, and have the trousers hemmed.
That is a wardrobe that dresses you for a year of work without a single morning spent deciding, and it costs less over five years than replacing cheap versions of the same things annually.
Where to Look
The question of where matters less than when. Work clothes are bought badly in a hurry and well in a quiet hour, and the difference shows for years.
Buy tailoring in person if you possibly can. A shoulder cannot be judged from a photograph, and it is the one thing you cannot fix afterward. Everything else, including trousers, can be bought online and altered.
Buy at the start of a season rather than the end of one. The full size range is there, which matters far more on a jacket than on a knit, and there is time to have things altered before you need them.
Buy the same thing twice when something works. A trouser that fits properly is rarer than it should be, and the version you can buy today will not be there next year.
What a Good Alterations Shop Is Worth
More than most people realize. A hem costs very little. Taking in a waist or a back seam costs slightly more. Shortening a sleeve from the cuff is inexpensive on most jackets.
Between them, those three changes turn an off-the-rack garment into something that looks made for you, at a fraction of what made-to-measure costs. Find one shop, use it for everything, and they will start to know how you like things to sit.
The Test After a Year
Take everything out once a year and look at it in daylight. Anything shiny at the seat or elbow is finished. Anything with a lining split under the arm is repairable and worth repairing. Anything you have not worn in twelve months was a mistake, and the useful thing is to work out which kind of mistake, so you do not buy it again.
Workwear Worth Keeping
The Short Version
Work clothes fail at the lining, the seat, the buttonhole and the hem. Turn a garment inside out before you look at the price. Spend on the blazer, the coat and one pair of shoes, keep the tops mid-priced, rotate everything, and clean tailoring far less often than you think.