The Complete Alterations Guide
When and how to tailor your black dress for that perfect custom fit. Understanding costs, timelines, and what's possible.
The difference between a dress that looks "fine" and one that looks phenomenal often comes down to fit. Standard sizing rarely accommodates every body's unique proportions, which is where alterations come in. A relatively modest investment in tailoring can transform an off-the-rack purchase into a garment that appears custom-made for your body.
This guide covers everything you need to know about alterations: when they're worthwhile, what's possible, what to expect in terms of costs and timelines, and how to find a skilled tailor.
When to Consider Alterations
Not every dress needs alterations, but many can benefit from them. Consider tailoring when:
- Length is wrong: Hemlines that hit at unflattering points can be adjusted
- Shoulders don't align: Shoulder seams should sit at your shoulder point, not drooping or pulling
- Bust doesn't fit: Gaping, pulling, or inadequate support can often be corrected
- Waist placement is off: Empire waists or fitted waists should hit at your natural waist
- Overall size is close but not right: Taking in or letting out can perfect the fit
The Investment Perspective
Think of alterations as part of the garment's total cost. A $100 dress plus $50 in alterations ($150 total) that fits perfectly is often a better investment than a $150 dress that doesn't quite work.
Common Alterations Explained
Hemming
The most common alteration, hemming adjusts dress length. This is typically straightforward for straight or A-line hems but becomes more complex with curved, high-low, or heavily detailed hems.
Difficulty: Easy to moderate
Typical cost: $25-60 depending on hem style and fabric
Turnaround: 2-5 days
Taking In or Letting Out
Adjusting the overall size of a dress by taking in (making smaller) or letting out (making larger) seams. Taking in is generally easier than letting out, which is limited by existing seam allowances.
Difficulty: Moderate
Typical cost: $40-100 depending on extent of adjustment
Turnaround: 3-7 days
Pro Tip
When shopping, it's generally better to buy slightly large and take in than to hope a too-small dress can be let out. Seam allowances limit how much fabric can be released.
Bust Adjustments
Modifying fit around the bust—reducing gaping, adding darts for shaping, or adjusting for larger or smaller busts than the dress was designed for.
Difficulty: Moderate to complex
Typical cost: $50-120
Turnaround: 5-10 days
Shoulder Adjustments
Moving shoulder seams to sit correctly at your shoulder point. This is one of the more complex alterations as it affects the entire garment's drape.
Difficulty: Complex
Typical cost: $60-150
Turnaround: 7-14 days
Waist Definition
Adding darts or adjusting existing shaping to create more definition at the waist, particularly useful for shift dresses that could benefit from more shape.
Difficulty: Moderate
Typical cost: $40-80
Turnaround: 3-7 days
Strap Adjustments
Shortening or repositioning straps on sleeveless dresses. A simple alteration that can significantly improve fit and support.
Difficulty: Easy
Typical cost: $15-35
Turnaround: 1-3 days
What's Difficult or Impossible
While skilled tailors can work wonders, some alterations are extremely difficult, prohibitively expensive, or simply not possible:
- Significant size increases: Limited by seam allowances (usually 1-2cm)
- Changing necklines dramatically: Often requires reconstructing the entire bodice
- Restructuring complicated designs: Intricate seaming, pleating, or structural elements
- Pattern matching after alteration: Prints may not align after significant changes
- Altering heavily embellished areas: Beading, sequins, or embroidery complicate alterations
When to Walk Away
If a dress requires multiple complex alterations, the cost and risk may outweigh the benefits. Sometimes it's better to find a different dress that fits more naturally.
Finding a Good Tailor
The skill of your tailor matters enormously. A poor alterations job can ruin a garment, while an excellent tailor can work near-miracles. Here's how to find a good one:
Ask for Recommendations
- Friends, family, and colleagues who dress well
- Local bridal shops (they often know the best formal wear tailors)
- High-end department stores' alterations departments
- Local Facebook groups or community forums
What to Look For
- Clean, organised workspace: Indicates professionalism and attention to detail
- Clear communication: They should explain what they'll do and set realistic expectations
- Experience with your fabric type: Delicate fabrics require special expertise
- Reasonable turnaround times: Rush jobs often mean compromised quality
- Positive reviews: Check Google, Facebook, or industry-specific review sites
The Alterations Process
Initial Consultation
Your first visit should include:
- Trying on the garment while the tailor assesses fit
- Discussion of what changes you want
- The tailor's recommendations for necessary adjustments
- Pinning to demonstrate proposed changes
- Cost estimate and timeline
Fitting Sessions
For complex alterations, expect one or two fitting sessions:
- First fitting: Tailor makes initial changes; you try on to confirm direction
- Second fitting: Final adjustments refined before completing work
- Final pickup: Try on to confirm satisfaction before leaving
Alteration Cost Guide (Australian Estimates)
- Simple hem: $25-45
- Complex hem: $45-80
- Take in sides: $40-70
- Bust adjustment: $50-120
- Shoulder adjustment: $60-150
- Add/adjust darts: $30-60
- Shorten straps: $15-35
- Add bra cups: $20-40
Preparing for Your Appointment
Maximise your alterations appointment with these preparations:
- Wear appropriate undergarments: The bra and shapewear you'll wear with the dress
- Bring your shoes: Heel height affects hem length
- Know your occasions: Share where and how you'll wear the dress
- Be realistic: Understand that alterations improve fit but won't completely transform a dress
- Allow adequate time: Don't schedule alterations immediately before an important event
DIY vs Professional Alterations
Some simple alterations can be done at home if you have basic sewing skills:
Suitable for DIY: Simple hems on casual dresses, strap shortening, minor tucks
Best left to professionals: Anything involving structure, expensive fabrics, visible seams, or complex construction
When in doubt, seek professional help. The cost of professional alterations is typically far less than replacing a garment damaged by amateur alterations.
Investing in alterations transforms your relationship with your wardrobe. Dresses that truly fit elevate your confidence and appearance, making the modest cost of tailoring one of fashion's best investments.