If you have a monitored alarm system, smart smoke detectors, or water leak sensors in your home, you may qualify for insurance discounts that work alongside your home and auto bundle. Many homeowners know about the multi-policy discount but overlook protective device credits — and the two can often be combined on the same policy.
Compare & Save on Bundle Insurance
Bundle your home and auto insurance and save up to 25% per year. Get free quotes from top-rated insurers in minutes.
Get Free Quotes NowThis guide explains how home security and protective device discounts typically work, how they interact with bundle savings, and what to ask your insurer to make sure you are receiving every credit you qualify for. As with all insurance discounts, availability and size vary by state, company, and individual risk profile.
By the end, you should have a clear picture of which devices tend to matter to insurers, how much they may reduce your premium, and how to document them when requesting a quote.
How Protective Device Discounts Work
Most major home insurers offer a credit on the homeowners portion of your premium for devices that reduce the likelihood or severity of a claim. According to the Insurance Information Institute (III), common qualifying devices include burglar alarms, smoke and fire detection systems, sprinkler systems, deadbolt locks, and increasingly, smart water shut-off valves.
The size of the credit generally depends on how effective the device is at preventing large losses. A basic local alarm that only sounds inside the home usually earns a smaller credit than a centrally monitored system that automatically alerts a security company or fire department. Water leak detection with automatic shut-off has become one of the more valuable credits in recent years, since water damage is among the most frequent homeowners claims according to III claim frequency data.
These credits are separate line items from your bundle discount. If you already receive a multi-policy discount for combining home and auto coverage, protective device credits are typically applied on top of it — though the exact stacking rules differ by company. You can read more about the mechanics in our guide to how multi-policy discounts work.
Typical Discount Ranges (and Why They Vary)
Industry sources generally place protective device credits in the range of 2% to 15% of the homeowners premium, with basic devices (deadbolts, local smoke alarms) at the low end and monitored security or full sprinkler systems at the high end. Actual savings vary by state, coverage level, and individual risk profile, and some states cap or standardize the credits insurers may file.
Bundle discounts, by comparison, typically range from 5% to 25% across both policies. Combining the two does not mean the percentages simply add together — most insurers apply discounts sequentially or cap total discounts — but the combined effect on a homeowners premium can still be meaningful.
A few factors that influence what you might see on a quote: whether the device is professionally monitored, whether you can provide an installation certificate, the age of your home, and how your insurer’s rating plan is filed in your state.
Devices That Commonly Qualify
Security and theft prevention
Monitored burglar alarms, smart doorbell cameras (at some insurers), deadbolts, and gated-community status. Theft-related credits tend to be modest because theft claims are less costly on average than fire or water claims.
Fire detection and suppression
Monitored smoke and heat detectors, whole-home sprinkler systems, and proximity to a fire station. Sprinklers usually earn the largest fire-related credit.
Water and weather protection
Smart water leak sensors, automatic shut-off valves, sump pumps with battery backup, and in some coastal or hail-prone states, impact-resistant roofing or storm shutters. Some state programs — for example, fortified-roof programs in Gulf states — offer standardized credits set by the state insurance department.
How Security Credits Interact With Your Bundle
Because protective device credits apply to the home policy while the bundle discount applies across both policies, the order in which you shop can matter. When comparing bundled quotes from different companies, make sure each quote reflects the same device information — otherwise you may be comparing a quote with credits against one without.
| Provider | Bundle Options | Highlights | Best For | Action |
|---|---|---|---|---|
| State Farm | Home + Auto | Strong bundling discount | Families | View Quote |
| Allstate | Home + Auto + Renters | Flexible policy options | Multi-policy shoppers | See Rates |
| Progressive | Auto + Condo | Fast online quote flow | Digital-first buyers | Compare Now |
It is also worth rechecking credits at renewal. If you installed a security system or replaced your roof mid-term, many insurers will apply the credit from the date you notify them, not retroactively. Our bundle discount checklist includes protective device documentation as one of the items to gather before requesting quotes.
What to Ask Your Insurer
When you call your insurer or agent, a few questions can surface credits you may be missing: Which protective devices qualify for a credit in my state? Does a monitored system earn more than a self-monitored one? Do smart water shut-off devices qualify, and is there a preferred vendor program? Will these credits stack with my multi-policy discount? What documentation do you need?
Some insurers also run partnership programs that provide discounted devices to policyholders. These can be worth reviewing, though it is reasonable to compare the device cost against the expected premium credit before deciding.
Frequently Asked Questions
Do home security discounts apply to my auto policy too?
Generally no. Protective device credits apply to the homeowners policy. The auto side of a bundle has its own discounts, such as telematics or anti-theft credits, which vary by insurer and state.
How much proof do I need to provide?
Most insurers ask for an alarm certificate from the monitoring company or a receipt showing installation. Requirements vary — some accept a photo or a signed statement, while others require annual recertification.
Can a security system ever raise my rates?
The device itself does not raise rates. However, home upgrades that increase replacement cost (such as a major renovation done alongside a system install) can raise the premium independently of any credits.
Is it worth installing a system just for the insurance discount?
Usually the discount alone does not pay for a monitored system, which carries monthly fees. Most homeowners weigh the security benefit first and treat the premium credit as a secondary benefit. Individual results depend on your premium size and the credit available in your state.
Key Takeaways
- Protective device credits typically range from 2% to 15% of the home premium and usually stack with a multi-policy discount, though stacking rules vary by insurer.
- Monitored systems, sprinklers, and smart water shut-off valves generally earn larger credits than basic local alarms.
- Make sure every bundled quote you compare includes the same device information, or the comparison will be misleading.
- Recheck credits at renewal and after any home improvement — insurers apply most credits from the date of notification.
- A licensed agent can confirm exactly which credits are filed in your state.
Insurance Disclaimer
Disclaimer: The content on this page is for informational purposes only and does not constitute insurance, legal, or financial advice. Insurance rates, discounts, and availability vary by state, provider, coverage level, and individual risk factors. Savings figures (such as “up to 25%”) are general industry estimates and are not guaranteed for any individual. Always consult directly with licensed insurance professionals and obtain multiple quotes before making coverage decisions. BundleInsuranceGuide.com may earn a commission from affiliate links on this page at no additional cost to you.
About the Author
Marcus Webb is a personal finance writer specializing in insurance and consumer protection. He has covered home, auto, and life insurance for over eight years, helping readers understand complex coverage decisions with clear, unbiased information. Marcus’s work focuses on practical guidance for everyday consumers navigating the US insurance market.