Security systems, such as burglar alarms, should be serviced annually. If the system is monitored by a police-approved system, it may be recommended to service it every six months. Regular maintenance can help prevent problems, extend the system's lifespan, and save money on repairs.

The cost of installing a security system can vary widely based on several factors, including the type of system, the size of your property, and the complexity of the installation. Here's a general breakdown:

1. Basic Systems: These might include just a few door/window sensors and a control panel. Installation costs for a basic system can range from $100 to $500.

2. Mid-Range Systems: These systems often include additional features like motion detectors, cameras, and professional monitoring. Installation and equipment costs for these systems typically range from $500 to $1,500.

3. High-End Systems: For a more advanced system with smart home integration, high-definition cameras, and comprehensive coverage, costs can range from $1,500 to $5,000 or more.

4. Monthly Monitoring Fees: In addition to installation, many systems have monthly monitoring fees that range from $20 to $60 per month.

5. DIY vs. Professional Installation: DIY systems are usually cheaper upfront but may require more time and effort on your part. Professional installation costs can be higher but might offer more customization and reliability.

Prices can also vary based on geographic location and the specific companies or brands you choose. It’s a good idea to get quotes from multiple providers and compare their offerings to find the best fit for your needs and budget.

Choosing between hardwired and wireless security systems depends on your specific needs, preferences, and circumstances. Here’s a breakdown of the pros and cons of each to help you decide which might be better for you:

Hardwired Security Systems
Pros:

Reliability: Less susceptible to interference and signal issues since they use physical connections.
No Battery Issues: Typically, there are no batteries to replace, as the system is powered directly from your home's electrical system.
Less Vulnerable to Tampering: Hardwired systems can be more difficult for intruders to disable.
Cons:

Installation Complexity: Installation can be more invasive and time-consuming as it requires running wires through walls and ceilings.
Flexibility: Less flexible for changes or upgrades, as adding or moving components can be challenging.
Aesthetic Impact: Visible wires may affect the aesthetics of your home, though professional installation can mitigate this to some extent.
Wireless Security Systems
Pros:

Ease of Installation: Generally easier to install since they don’t require running wires. This can be a DIY project or handled by a professional with less disruption to your home.
Flexibility: Easier to expand or modify the system by adding or relocating components without major renovations.
Aesthetics: No visible wires, which can be more visually appealing and less intrusive.
Cons:

Battery Maintenance: Components need battery replacements or recharging periodically.
Signal Interference: Wireless systems can be subject to interference from other wireless devices or environmental factors.
Potential for Tampering: While generally secure, wireless systems can be more vulnerable to hacking or signal jamming.
Choosing Between the Two
For New Construction or Major Renovations: Hardwired systems can be a good choice if you’re already doing significant work on your home.
For Existing Homes or Renters: Wireless systems are typically more practical and less invasive.
For Areas with High Security Needs: Hardwired systems might offer slightly better reliability and security.
For Ease of Installation and Flexibility: Wireless systems usually excel in these areas.
Ultimately, the best choice depends on your specific situation, including the layout of your home, your budget, and your preferences for maintenance and flexibility.