What feeling are you trying to solve?
For some people it is the small worry when they walk away from the car. For others it is comfort: starting the engine from the kitchen window before a long commute. Naming the feeling helps, because alarms and remote start solve different things.
Tell us what has happened before, where the vehicle is usually parked and how you would use the system day to day.
Why is compatibility the first question?
Factory security, key type, immobilizers, transmission type and vehicle electronics all affect which equipment and interfaces a vehicle needs. Remote start is not a universal feature of every vehicle or every alarm package, and an alarm does not automatically include remote start.
The shop's alarms and security page mentions CrimeStopper alarms as part of its lineup. Ask which systems and remotes fit your vehicle, and see the car alarm and remote start guide for questions to bring.
What should you bring to the planning visit?
Your year, make, model and trim, every key or fob you have, and anything you know about the factory alarm or immobilizer. Mention any lock or remote problems you already notice.
If remote start is the goal, ask early whether your vehicle and the proposed equipment support it, and what operating limits would apply.
How do you choose between alarm features and convenience?
Make a short list in two columns: things that would help you feel safer and things that would make daily driving easier. Some features answer both, and some depend completely on the vehicle.
Ask what happens if a remote is lost, which accessories are included and what the system can and cannot report. Clear answers before work begins make the upgrade feel calm instead of complicated.
What does it feel like once it is set up?
Picture locking up, hearing the confirmation and walking away without the second glance. Or a cabin that is already more comfortable when you get in, if your vehicle supports it.
Ask for a walkthrough of arming, disarming and responding to an alert. No alarm can guarantee that theft or damage will not happen; it is one layer of peace of mind.