The Impact of Home Security Systems on Insurance Discounts

Start With Who Is Quoting You the Number

Search this topic and one figure appears everywhere: a monitored security system saves 5% to 20% on your homeowners premium. It is repeated so consistently that it reads as established fact.

Look at who publishes it. Almost every source quoting the upper end sells security systems or monitoring subscriptions. The Electronic Security Association, frequently cited for a 15% to 20% figure, is the industry's own trade body. These are not dishonest sources, but they are interested ones, and the number they promote sits at the top of a range rather than in the middle of it.

The picture from carrier filings and insurer disclosures is more sober.

What Insurers Actually Credit

And the carrier variation is the part that matters. Published maximums cluster around 15% at some large insurers, around 10% at others, and around 5% at several more. A comparison platform's own analysis puts the typical discount at 2% to 5%, with a few carriers reaching 15%, and finds that homeowners with a security system pay on average roughly $100 a year less than those without.

So the honest range is: usually a few percent, occasionally into double digits, and only with central-station monitoring.

The Arithmetic Nobody Publishes

Here is the calculation that decides whether this is worth doing for financial reasons.

Professional monitoring typically costs somewhere between $20 and $60 a month — call it $240 to $720 a year. The average insurance saving is around $100 a year, and at a strong carrier on a large premium it might reach $200 to $300.

For most households the monitoring subscription costs more than the discount returns. Add the hardware and the gap widens.

This does not mean do not buy a security system. It means buy one because you want your house monitored, and treat the insurance credit as a partial offset rather than the reason. The vendor framing — that the system pays for itself through insurance savings — does not survive the arithmetic for a typical policy.

Two situations where the numbers do work. If your premium is large, a percentage credit is worth more in absolute terms. And if you already have monitoring for your own reasons, claiming the credit is free money you may not currently be receiving.

What Actually Qualifies

The dividing line is not the hardware. It is whether someone other than you responds.

Central station monitoring means a staffed facility receives the alarm, verifies it and dispatches emergency services. That is what carriers credit, because the response does not depend on you being awake, holding your phone, or having a signal.

Self-monitoring — the system alerts your phone and you decide what to do — generally earns only the small protective device credit, regardless of how sophisticated the equipment is. A video doorbell is a deterrent and an evidence source, not a protective device in underwriting terms.

Professional installation is generally not required. Most carriers accept a self-installed system as long as it carries a professional monitoring subscription. The document that matters is the monitoring certificate, not the installation receipt.

Some carriers also want the monitoring company to be UL-listed. Ask before subscribing if the credit is part of your decision.

Water Is the Better Bet

Most people approach this thinking about burglary. Insurers increasingly think about water.

Water damage is one of the most frequent and expensive homeowners claim categories, and unlike theft it happens whether or not anyone is home. A pipe that fails while you are away for a fortnight produces a very different loss from one that fails while you are standing in the kitchen.

Leak sensors under sinks, behind appliances and near the water heater cost very little. Automatic shut-off valves that close the supply when flow looks abnormal cost more and do more. Several carriers credit these separately from the burglar alarm discount, and some run programmes that supply the hardware, because the loss reduction is worth more to them than the device costs.

Two things to know before relying on it. Some carriers waive or reduce the deductible for a water claim where a monitored shut-off was active — worth asking about specifically, since it can be worth more than the premium credit. And a sensor prevents the damage rather than the exclusion: a slow leak you never noticed is likely excluded as gradual damage anyway, which is precisely the loss a sensor stops from happening. See what your policy does not cover and flood insurance versus water backup.

How to Claim It

1. Ask your insurer what they credit, before buying anything. Request their protective devices list. Credits are carrier-specific and state-filed, so only your own carrier's answer counts.
2. Get the monitoring certificate from your provider. One page, listing the monitoring company, what is monitored, and any UL listing.
3. Send it in and ask specifically for the protective device or central station alarm credit. It is not applied automatically, and agents do not always volunteer it.
4. Check your declarations page at the next renewal to confirm it appears. If it does not, chase it.
5. Resubmit if anything changes — a new monitoring provider, added sensors, a lapsed subscription reinstated.

If you already have monitoring and have never sent a certificate, that is the highest-value phone call in this article.

What Reduces or Voids the Credit

A lapsed subscription. The credit is for active monitoring. If the contract ends and the policy still reflects it, you are receiving a discount you no longer qualify for — and an insurer that discovers this at claim time will raise it. Tell them when it changes.

No alarm permit. Many municipalities require registration for monitored alarms, and unregistered systems may get no police response. Check with your local police department after installation.

False alarms. Repeated false dispatches attract municipal fines in many jurisdictions, which can exceed the insurance saving. Pet-immune motion sensors and correct installation matter more than the brand of the panel.

Assuming last year's credit still applies. Carriers revise protective device credits as underwriting models change, and in a hardening market some have been trimmed. Check the declarations page rather than assuming. If your premium rose anyway, this explains why.

The Data Question

Some insurers now offer smart home programmes that provide discounted or free hardware in exchange for connecting the devices to the insurer.

These can be good value. They also mean the insurer receives ongoing data about your home. Before enrolling, ask what data is collected, how long it is retained, whether it can be used in underwriting or at claim time, and what happens if you leave the programme.

This is not an argument against enrolling. It is an argument for knowing the terms, which are rarely prominent in the offer.

Two Situations

The credit that was never claimed

A household has had professional monitoring for several years, bought entirely for security reasons after a break-in nearby. Nobody ever sent a certificate to the insurer.

One phone call and one emailed document later, a protective device credit appears at the next renewal. Nothing about the house or the system changed.

This is the most common version of the story: not choosing a system for the discount, but failing to collect a discount already earned.

The system bought for the wrong reason

A homeowner installs a monitored package specifically because a sales calculation showed the insurance savings covering the subscription.

The actual credit applied is a few percent of a mid-sized premium — roughly a third of what the annual monitoring costs. The system is genuinely useful and the household is glad to have it. The financial case presented for it was simply not accurate.

Both are composite illustrations of common patterns, not accounts of specific individuals.

Frequently Asked Questions

Do video doorbells earn a discount?

On their own, usually only the small protective device credit, if anything. They are treated as deterrents rather than as systems that produce an emergency response.

Is professional installation required?

Generally no. Most carriers accept self-installed equipment provided it carries a professional monitoring subscription. The monitoring certificate is the qualifying document.

How much will I actually save?

Typically a few percent of your premium, averaging around $100 a year, and more at carriers with larger published credits or on larger premiums. Ask your own insurer for their figure rather than relying on a published range.

Will it lower my deductible?

Some carriers waive or reduce the deductible for specific claim types where a monitored system or shut-off valve was active. This varies considerably and is worth asking about directly — it can be worth more than the premium credit.

Do renters get the same discount?

Often the same percentage, applied to a much smaller premium, so the dollar saving is modest. Still worth claiming. See renters insurance.

What about landlords?

Protective device credits generally apply to landlord policies too, and monitored water detection is particularly valuable on a property you are not living in.

Do I have to prove it every year?

Usually the certificate is submitted once. You should tell your insurer if the monitoring changes or ends — continuing to receive a credit for coverage you no longer have creates a problem at claim time rather than a saving.

Which matters more, burglary or fire and water monitoring?

For most households, environmental monitoring. Water and fire losses are more frequent and more expensive than theft, and several carriers credit them separately. Adding smoke and water sensors to an existing system is usually cheap.

The Short Version

The 5% to 20% figure you will see everywhere comes mostly from companies selling security systems. Carrier filings suggest a few percent for most setups, up to 10% or 15% at some insurers, and only with central-station monitoring. The average saving is around $100 a year.

Monitoring costs more than that. So buy a system because you want your home monitored, not because the arithmetic works — it usually does not.

But if you already have monitoring, send your insurer the certificate. And if you are adding anything, add water leak sensors first: they are cheap, they address the more likely loss, and they may reduce your deductible as well as your premium.

Sources and Editorial Note

Discount ranges reflect published carrier maximums, state rate filings and comparison-platform analysis current to 2026; figures at the top of commonly quoted ranges originate predominantly from security industry sources, including the Electronic Security Association, which represents the sector. Claim frequency and severity context draws on the Insurance Information Institute.

Protective device credits are filed by carrier and by state and change as underwriting models are revised. Monitoring costs, deductible waivers and smart home programme terms vary by provider. Confirm what applies to you with your own insurer and against your declarations page, and contact your state insurance department with complaints or questions about filed discounts. This article is general information, not advice on your specific policy.