An alteration is a piece of work nobody is paying you for. The labour is spent twice, the fabric is already cut, and the customer is standing in your shop for a second time about a garment she expected to be finished the first time.
Most shops treat alterations as an unavoidable part of tailoring. They are not. Almost every one of them traces back to a specific number that was taken wrong, taken over the wrong layer, or never written down at all, and once you can name the fault from the symptom you can stop repeating it.
This is how to diagnose a fit problem before you unpick anything, the twelve faults that account for most alterations with the cause and the fix for each, the three alterations worth refusing, and the seam allowances that make future alterations possible at all.
An Alteration Is Negative Margin, Not Extra Work
Work out what one alteration actually costs before you accept the next one as normal. There is the labour to unpick, the labour to restitch, the machine time, and a delivery slot given to a garment that was already delivered once. On a modest garment that can be a third of the original charge, and none of it is billable.
Then there is the part that does not appear in the book. A customer who collects a garment twice tells people the fit needed fixing, not that it was fixed well. Our guide to setting your tailoring charges covers the costing side of this in detail, and alterations are the line most shops leave out of it entirely.
The useful shift is to stop seeing alterations as service and start seeing them as a defect rate. A shop that measures it can reduce it. A shop that treats it as normal never will.
Diagnose Before You Unpick
The most expensive alterations are the ones done twice because the first fix addressed the symptom instead of the cause. Four minutes of diagnosis saves an hour of unpicking.
Have Her Wear It and Stand Naturally
A garment judged on a hanger or on a customer standing to attention tells you nothing. Ask her to stand as she normally stands, then to raise her arms, then to sit. Half of all fit complaints only appear in one of those three positions, and knowing which one narrows the cause immediately.
Look for Where the Fabric Pulls, Not Where It Feels Tight
Customers report the place that feels uncomfortable. The fabric reports the place that is actually wrong, and they are frequently not the same. Drag lines point back to the problem like arrows: a wrinkle running diagonally from the armhole to the waist means the armhole, not the waist.
Pin It, Do Not Estimate It
Pin the correction on the body and measure the pin. Estimating that it needs about half an inch is how a garment comes back a third time. The pin gives you a number you can take to the machine.
Check the Measurement Sheet Before You Blame the Cutting
Pull the original sheet first. Often the garment was cut exactly to what was written and the fault is in the sheet: a missing ease note, a reading taken over the customer's old garment, or a blank where the fabric should have been recorded. That tells you whether to fix a garment or fix a process.
Upper Body: Six Faults That Cause Most Alterations
Symptom | Usual cause | The fix | Prevention |
|---|
Front neck gapes open | Neck depth too deep, or shoulder cut too long | Take in at the shoulder seam, or add a small shaping dart at the neckline | Measure and record front neck depth; never guess it |
Pulls across the upper back | Back width too narrow or armhole too tight | Let out the side seam and lower the armhole | Take the upper back separately from the chest |
Sleeve binds when the arm lifts | Armhole cut too small or set too high | Lower and enlarge the armhole, then re-set the sleeve | 1.5 to 2 inches of armhole ease on a fitted garment |
Wrinkles under the bust | Dart pointed at the wrong height | Unpick and reposition the dart to the true apex | Take apex height and apex-to-apex on every fitted order |
Shoulder seam falls off the shoulder | Shoulder measured or cut too wide | Take in the shoulder seam and re-set the sleeve head | Shoulder takes zero ease; measure point to point |
Rides up at the back | Back length short, or front and back cut the same | Let down the back hem; recut the back if no allowance | Take front length and back length separately |
The last row is worth reading twice. Most people are not symmetrical front to back, and a single length reading used for both is one of the quietest causes of a garment that never sits right no matter how many times it is adjusted.
Lower Body: Six Faults That Cause Most Alterations
Symptom | Usual cause | The fix | Prevention |
|---|
Waistband rolls over at the top | Rise too short, or band tight at its upper edge | Let out the waistband and deepen the rise if there is allowance | Take the rise seated, never standing |
Trouser pulls across the seat | Not enough ease at the seat | Let out the back seam and the back rise | 3 to 4 inches of seat ease on a trouser |
Side slit gapes when walking | Slit started above the widest part of the hip | Lower the start of the slit and add a facing | Slit must begin at or below the widest hip point |
Pull-on bottom will not go over the hips | Elastic waist cut to the waist measurement | Insert a side zip, or recut the waistband at the hip | Cut any pull-on waist at the seat, then gather back |
Churidar will not pass the calf | Cut on the straight grain, or calf never measured | Recut the leg on the bias; there is no partial fix | Cut churidar legs at 45 degrees and measure the calf |
Hem uneven or dragging at the front | Length taken barefoot, worn in heels | Re-hem on the body in the shoes she will wear | Measure in the footwear, or record the heel height |
Note how many of the prevention column entries are not skills. They are lines on a measurement sheet. That is the whole point of this article.
The Three Alterations Worth Refusing
Some alterations cost more in labour than remaking the garment, and doing them anyway to keep a customer happy loses money and usually produces a worse result as well. Say so at the counter, kindly and early.
Taking In a Shoulder on a Finished Lined Garment
The shoulder seam carries the collar, the lining and both sleeve heads. Changing it means unpicking all of them and resetting both sleeves so they match. On a lined coat or sherwani that is most of the construction, and the finished result rarely hangs as well as the original did.
Enlarging the Neck on a Gathered Yoke
The neckline on a yoke garment is attached to gathered fullness. Cutting it larger means recutting the yoke and re-gathering everything joined to it, at which point you have remade the garment while calling it an alteration. Better to offer a placket or a keyhole opening instead, which is a genuine fix.
Letting Out Beyond the Seam Allowance
If the allowance is half an inch, there is half an inch. Customers reasonably assume a garment can always be let out, and it is worth explaining at the counter that it cannot, before the order rather than after. Where a customer's size may change, say so and leave a wider allowance on purpose.
Seam Allowances That Make Future Alterations Possible
A garment cut with no allowance is a garment that can never be adjusted. These are working figures for garments that may need letting out later, which in practice means most of them.
- Side seams: 1 inch each side, giving 2 inches of let-out in total
- Centre back seam: 1 to 1.5 inches
- Shoulder seam: 0.5 inches, and no more, because a deeper allowance distorts the sleeve head
- Armhole: 0.5 inches, never more, or the curve changes shape when it is let out
- Waistband and trouser back seam: 1 inch
- Hem on trousers and skirts: 2 to 2.5 inches
- Sleeve hem: 1 to 1.5 inches
Where the customer is a growing child, an expectant mother or a groom with a wedding date some months away, say at the counter that you are leaving extra, and write the allowance on the order. It turns a possible remake into a ten-minute adjustment.
Your Alteration Rate Is the Best Quality Number You Have
Count the garments that came back against the garments delivered, once a month. It takes five minutes and it is the most honest measure of the shop's work that exists, because unlike a customer's opinion it cannot be argued with.
- Under 5 per cent: good, and typical of a shop with a disciplined measurement sheet
- 5 to 10 per cent: normal, with room to improve on one or two recurring faults
- Above 10 per cent: this is a measurement-sheet problem, not a stitching problem
Log the fault as well as the count, using the symptom column from the tables above. After twenty entries one or two faults will dominate, and fixing those two will remove most of your alterations. Almost always they turn out to be a measurement nobody was recording.
What Changes When the Pattern and the Sheet Are Stored
Reading back through the prevention column, the pattern is hard to miss. Every entry is a number that has to be taken, recorded, and then found again the next time that customer orders.
That is precisely what a stored customer record does. With pattern making software, the ease, the allowances and the customer's own corrections stay attached to her measurements. When she orders again, the garment is cut from the pattern that fitted rather than from a fresh draft that may repeat the original fault.
It also survives a fitting. When an alteration does happen, the correction can be applied to the stored pattern rather than only to the garment, so the same customer never comes back with the same complaint twice. That single habit is what moves a shop from a ten per cent alteration rate to under five.
And it removes the dependence on one person's memory. The ease that a senior cutter has always applied is in the pattern, not in his hands, so a garment cut while he is away comes out the same.
Most Alterations Were Decided at the Measuring Table
By the time a garment is being unpicked, the decision that caused it was made weeks earlier by whoever held the tape. That is good news, because a measuring habit is far easier to change than a stitching habit.
Diagnose before unpicking, pin instead of estimating, pull the original sheet before blaming the cut, and log which fault it was. Within a couple of months the log will tell you the one or two lines missing from your measurement sheet, and adding them will do more for your shop than any amount of extra care at the machine.
Frequently Asked Questions
Why does a blouse gape at the front neck?
Usually the front neck depth was cut deeper than the customer wanted, or the shoulder was cut too long so the neckline sits away from the body. Take it in at the shoulder seam, or add a small shaping dart at the neckline. Prevent it by measuring and recording the front neck depth rather than accepting normal as an answer.
How much seam allowance should be left for alterations?
One inch on side seams, one to one and a half at the centre back, half an inch at the shoulder and armhole, and two to two and a half inches on a trouser or skirt hem. Never leave more than half an inch at the armhole, because letting out a deeper allowance changes the shape of the curve.
What is a normal alteration rate for a tailoring shop?
Under five per cent of garments delivered is good, five to ten is normal, and above ten indicates a problem with the measurement sheet rather than with the stitching. Log which fault each one was; one or two will usually account for most of them.
Can a garment always be let out if the customer gains weight?
Only as far as the seam allowance goes, which on a standard side seam is about two inches in total. Say this at the counter before the order rather than after, and where a size change is likely, leave a wider allowance deliberately and note it on the sheet.
Why does a sleeve bind when the customer raises her arm?
The armhole is too small or set too high, not the sleeve. A fitted garment needs one and a half to two inches of armhole ease. The fix is to lower and enlarge the armhole and re-set the sleeve; enlarging the sleeve alone will not help and usually makes the hang worse.
Cut It Right the First Time With Fashion Dot
Fashion Dot has been building tailoring CAD software for Indian tailors since 2003. Measurements, ease and allowances are stored against each customer, corrections from a fitting are applied to the stored pattern so a fault is fixed once rather than repeated, patterns print or cut full scale, everything works in Tamil, Hindi, Telugu and Kannada, and on-site installation and training are included. See the pricing page for current plans.
Bring the Garment That Came Back
Bring a garment that needed altering and the sheet it was cut from to a free demo. We will draft it from the same numbers and show you where the fault entered, which is usually a line nobody was recording rather than anything that happened at the machine. Book a free demo or call us on 84486 38639.