Allstate: How can I save money on my homeowners insurance?
Allstate offers many discounts that can help you save money on your insurance. For instance, .......or if your home has smoke alarms, fire extinguishers or a security system. ..... If you haven't already, talk to your Allstate Agent or an Allstate representative at 1-800-ALLSTATE about discounts.

State Farm: Home Alert Discount; You may qualify for premium discounts for having such devices as fire or smoke detectors, or burglar alarms (this may not be available in some states or provinces).

Geico: Why pay more than you need to? You may qualify for a variety of discounts on your homeowners insurance policy. Do you have: A monitored alarm system?, Deadbolts on your doors?, Smoke detectors in your house?, A sprinkler system?

Central Insurance: Protect your home. Install fire and burglar alarms and/or smoke detectors in your home -- discounts are available in most states.

GMAC Insurance: The GMAC Insurance Homeowners Program* rewards customers who pay attention to safety and security and lower their risk of injury, accident, theft or other covered losses. Here are just a few of the things that can lower your home insurance premiums: Security systems, Smoke alarms

Erie Insurance:  Fire and/or Burglary Alarm System Discount – install smoke alarms or a burglary alarm system in your home and take advantage of additional discounts.

The Hartford: Fire / Burglary System Credits By upgrading your home security with a combination of burglar alarms and sprinkler system, you could save up to 20% on your homeowner insurance. Even dead-bolt locks and smoke detectors can save you up to 2%

HomeInsurance.com: Find Home Security Discounts Most home insurance companies will give you a discount for having a functional home security system in your home. A home security system will protect your home from burglary and therefore allows you to remain claim free.