Suits are complex garments. Hemming pants and sleeves is a simple task for many tailors but more complex adjustments are complicated. For example, a jacket made of several layers of fabric that provides weight and shape.
Some tailors are not skilled with full suit alterations. Find a tailor who specializes in clothing for best results. For custom suits in Boston, you can also visit https://www.sordillos.com/services/mtm-suits/ or similar sites. A two-piece suit has a jacket and trousers, a three-piece suit adds a waistcoat.
The price of suit tailoring is not fixed–it's like asking how long a piece of string is. Different materials can affect the price of the suit alteration just as much as anything else.
A top-end suit would require top-end tailoring fabrics and often a higher price due to the extra care required to customize it. Depending on factors such as the brand and material, garments often require sizable expenditure.
There are 3 ways to make suits:
1. Readymade and altered "sizes" or precut shapes; a convenience that often is expressed over time with wrinkles from poor shaping, leading to distortion;
2. The made-to-measure suit that uses measurements, not shaping, to achieve things like style, lengths, and horizontal measurements;
3. The custom, bespoke or tailoring-designed suit that has interim half-made fittings and is cut from an actual personal pattern.