Sewing machine with a hand coming in from the left of the image.

Sewing Gone Wrong? Here’s How to Fix Common Mistakes


Alice profile image
Author
Alice
Last Updated
Categories
  • How To Guides
  • Sewing DIY
  • Tips and Advice

Even the most experienced sewists know that not every project goes perfectly to plan - and that’s all part of the creative journey. Whether you’re just starting out or refining your craft, a few common sewing mistakes can quickly turn excitement into frustration.

The good news? With the right sewing tips and a little expert guidance, most issues are simple to fix. At Just Fabrics, we believe sewing should feel joyful, rewarding, and inspiring - so we’re here to help you troubleshoot with confidence and keep your projects looking beautifully professional.

Puckered Seams

Puckering can take away from an otherwise flawless piece, especially when working with lightweight or luxury fabrics.

How to fix it:

  • Slightly loosen your thread tension.

  • Increase your stitch length for finer fabrics.

  • Reduce presser foot pressure where possible.

  • Use a walking foot for silks, linens, or stretch materials.

Top tip: Press as you sew. This is one of the most underrated sewing tips and instantly elevates your finish.

Tangled or Uneven Stitches

There’s nothing more disheartening than discovering a tangle of thread underneath your fabric. It’s one of the most common sewing mistakes - but thankfully, also one of the easiest to resolve.

How to fix it:

  • Re-thread your sewing machine, including the bobbin - precision matters here.

  • Adjust your tension settings and test on a fabric offcut first.

  • Keep your machine clean and well-maintained to avoid lint build-up.

Beginner sewing advice: Always thread your machine with the presser foot raised. It’s a small step that makes a big difference.

If you’re working with premium dressmaking fabrics or delicate cottons from the Just Fabrics collection, this simple check can help protect both your fabric and your finish.

Hand holding a sewing needle with light green thread, threaded through the eye of the needle.

Uneven Hems

A beautifully finished hem is what transforms a project from homemade to handmade.

How to fix it:

  • Measure carefully and pin evenly before sewing.

  • Use fabric chalk or a marker for precision.

  • Press the hem into place before stitching.

  • Try hemming tape or a hem guide for added accuracy.

If needed, unpick and rework sections - it’s all part of the process. Even seasoned makers rely on their seam ripper!

Uneven Tension or Loopy Stitches

Inconsistent stitches can impact the overall look of your project.

How to fix it:

  • Re-thread your machine completely.

  • Ensure your bobbin is wound evenly.

  • Adjust tension gradually and test before sewing.

Every fabric behaves differently - so always test first, especially when using premium or patterned materials.

Blue check fabric with a running stitch

Fabric Not Feeding Evenly

If your fabric shifts or bunches, it can affect both accuracy and finish - especially when working with upholstery fabric or heavier materials.

How to fix it:

  • Clean your feed dogs regularly.

  • Switch to a walking foot or specialist presser foot.

  • Let the machine guide the fabric - avoid pulling.

Choosing high-quality materials from trusted fabric suppliers like Just Fabrics also ensures more consistent handling while sewing.

Choosing the Wrong Fabric

One of the most common sewing mistakes actually happens before you even begin.

How to fix it:

  • Match fabric weight to your project - lightweight for garments, heavier options for upholstery.

  • Consider drape and movement carefully.

  • Always pre-wash your fabric to prevent shrinkage.

  • Test a small sample before committing.

Take advantage of our complimentary fabric samples - choose up to 6 and experience the texture, colour, and quality before committing.

Light sage green fabric showing the stitching

Choosing the Wrong Thread

Thread may seem like a small detail, but it plays a vital role in both durability and appearance.

How to fix it:

  • Use high-quality thread suited to your fabric type.

  • Avoid mixing fibre types (e.g. cotton thread with synthetic fabrics).

  • Replace old or brittle thread.

Top tip: Always check thread colour in natural light for the best match.

Using the Wrong or Damaged Needle

A worn or incorrect needle can quickly undo your hard work.

How to fix it:

  • Choose the correct needle type (ballpoint for jersey, sharp for woven fabrics).

  • Replace needles every 6–8 hours of sewing.

  • Check for bends or damage before starting.

This small habit is one of the simplest yet most effective sewing troubleshooting techniques.

Snapped Needles or Broken Threads

It can be a little alarming - but the cause is usually straightforward.

How to fix it:

  • Ensure your needle is properly inserted and tightened.

  • Match the needle type to your fabric weight.

  • Avoid forcing thick or layered fabrics.

  • Use strong, quality thread.

When working with heavier upholstery fabric, investing in the right tools makes all the difference.

Blue pinstripe fabric on a sewing machine

Keep Calm and Keep Stitching

At Just Fabrics, we believe sewing is about more than just technique - it’s about creativity, confidence, and enjoying the process. Every mistake is an opportunity to learn and refine your skills.

To make your sewing experience smoother, explore our full range of haberdashery essentials, from quality threads and scissors to pins, measuring tools, and seam rippers. And if you’re planning your next project, discover our inspiring collection of curtain, upholstery, and dress fabrics - carefully sourced to help you create something truly special.

Whether you’re refreshing a room, crafting a gift, or working on a bespoke interior project, we’re here to help you inspire and create with confidence.