1.In-House Tailors Good tailors shops do have their own tailors so that they can control the consistency of quality and workmanship. Make sure you physically see tailors working. Otherwise, the shop is just a store front that outsource to sweatshop where the owner is just a salesperson and have no concept of tailoring

2. Construction components This is the BIGGEST difference between a good tailor and a poor one. Do ask for and check personally the components like shoulder pads, canvas, Bemberg lining etc. Many tailors actually charge cheap prices by saving on these components as most customers cannot tell. You can check the link below about how to check:

Aspects of a quality Tailor made Suits

3. Fabrics If you are looking for pure wool, always conduct the burn test. There should not be any plastic smell and the residue should be powdery for pure wool. Most importantly though is that you must like the texture and look for the fabric. If you like what you wear, confidence will come naturally!

4. Service Make sure the tailor is somebody who seems like they care about return business. A tailor that cares about return business is a gem. If the tailor cares, choosing the right style and getting the perfect fit can be a breeze.