Signs that your maintenance staff is reliable include being on time, meeting all set deadlines, listening to your needs, and being honest with you. They admit if they can't do what you want: even though they're considered experts in all trades, that doesn't mean their maintenance staff knows everything about carpentry or plumbing. A maintenance professional should be someone you trust inside your home. He or she must be punctual and meet all of the deadlines mentioned, and must listen to your needs and be honest and kind to you.
These features will help you trust your maintenance professional and show a professional work ethic.