This is common that the trackpad on your MacBook sees more wear and tear than most other parts of your laptop. A small amount of spilled drink can go right into the trackpad via the surrounding gaps. Most failed trackpads are directly from liquid damage or high humidity. If your Mac has the following symptoms, you need to replace the trackpad.
Most companies must outsource component level motherboard repair for screen , keyboard and battery replacement, because they don’t know how to do it or they don’t have the necessary tools. This causes long delays and unexpected surprises; the person you are talking to does not work for the company repairing your MacBook / Laptop. With AppleMac, the buck stops here. We repair your logic board and all your parts replacement, and you only deal with us. Our company has repaired couple hundred of MacBook / Laptops.