How to choose a good locksmith, and avoid the bad ones?

• Availability – is the company willing to offer 24x7 emergency locksmith in Las Vegas, NV or does it operate only during standard working hours?
• Speed – how quickly can the locksmiths reach your doorstop in case of an emergency?
• Coverage – does the firm extend services within a small neighborhood or has a wide reach across Las Vegas
• Range of services – Many commercial locksmiths in Las Vegas, NV offered a limited range of service. Look for the menu of services the company is offering. Does it also cover advanced and complicated locking solutions? Does it extend services to high-profile commercial clients?