For an alarm installation company, price follows payroll and class codes (mainly for workers' comp), the vans and drivers on the road, the services you sell and your loss history. Monitoring, an aging installed base and your customer contracts move it too, and you can change several of these before the first renewal. This guide gives no prices, because none is honest without a carrier quote. It ends with how to put a real insurance number in your acquisition model, for a lender, an investor or your board.
The short answer
- Workers' comp follows a formula: a state-approved rate per $100 of payroll for each class code, times payroll in that class, with the experience mod applied. Rates and class rules vary by state. Most other lines rest more on underwriter judgment.
- Most installers are in a vehicle every working day, so the van list, driver standards and crash history carry real weight in the auto price.
- Monitoring changes the risk. Selling monitoring, running your own central station or renting one from a wholesaler each adds different exposure and different questions.
- Customer contracts and the age of the installed base can raise or lower the questions an underwriter asks, and they are partly in your hands.
- Get quotes before closing if you can, so your model carries a real insurance number and not the seller's historical one.
What do underwriters price for an alarm installation company?
Underwriters look at the same company through several lenses, one for each policy. The table lists the drivers that matter for an alarm installer and what a new owner can do about each. It describes what moves price, not how much.
| Cost driver | Why it matters | What a new owner can do |
|---|---|---|
| Payroll and class codes | Workers' comp premium is a rate per $100 of payroll in each class, so a payroll dollar placed in the wrong class can change the premium every year, up or down | Check the codes on the policy against real duties and keep payroll records by class |
| Field versus office split | Field work involves ladders, attics and driving, while clerical payroll may be rated separately only if the rules are met | Keep the clerical area distinct and document what outside sales staff really do |
| Experience mod | The mod usually follows the business to you after a sale | Review it for errors and manage open claims |
| Services sold | Installation only is different from service plus monitoring, and owning a central station adds property, business income, errors and omissions (E&O) and licensing exposure | Describe services precisely and report any change |
| Revenue and mix | Carriers commonly use revenue or payroll as a rating basis for liability, and a book weighted toward install projects, recurring monitoring or commercial contracts raises different questions | Give each broker a revenue split by installation, service and monitoring and by residential and commercial, and ask which basis each carrier used |
| Vehicles and drivers | Installers drive between customer sites all day | Remove vehicles and drivers you no longer have, set driver standards and consider telematics (devices that track driving) |
| Customer and contract mix | Residential, commercial, school and government customers ask for different limits and endorsements | Review contract templates before renewal |
| Installed base | Old communicators and panels, and open service tickets, can point to future failed-system claims | Inventory the base and plan upgrades |
| Property and stock | Stock, tools, vans, an office and any monitoring room are insured on stated values (the values you report to the carrier) | Update values and secure storage |
| Claims history | Loss runs by line show whether claims are van crashes, ladder falls or failed-system allegations | Separate those types in your explanation to underwriters and close old open claims |
| Management continuity | A new owner with a qualifier or manager who knows the trade reads differently from a gap in leadership | Show the licensed manager plan and your own background |
Which parts of the price follow a formula?
Workers' comp is the most formula-driven line. The premium is generally a state-approved rate per $100 of payroll for each class code, multiplied by the payroll in that class, with the experience rating modification (the mod) then applied. Rates or loss costs and class rules come from the state's rating bureau (the National Council on Compensation Insurance in many states, an independent bureau in others), carriers file their own pricing within them, and North Dakota, Ohio, Washington and Wyoming use state funds, so check how your states work. A surprise at audit is a price change too. Details are in the workers' comp and payroll guide.
The other lines rest on a rating basis (the number a rate is multiplied by, such as revenue or payroll) that the carrier chooses, and on underwriter judgment. Rating bases vary by carrier and line, and your own declarations page or quote shows the basis used. Commercial auto looks at vehicles, drivers and use. Property looks at stated values. E&O looks at the services sold, the contracts and the claim history. Ask each broker which basis each carrier used, so two quotes can be compared fairly.
Why do vehicles and drivers matter so much for this trade?
In a federal occupational survey, 82% of people in this occupation said they work in an enclosed vehicle or equipment every day. That makes the van fleet a central cost driver, not a side item.
What underwriters tend to ask is practical: how many vehicles, who drives them, how drivers are screened and what happens after a crash. A van carrying ladders and a programming laptop that the old schedule listed as a plain pickup is the kind of mismatch to fix first. Remove vehicles and drivers you no longer have, schedule every van and driver and write down driver standards. The articles on removing vehicles, drivers and equipment you no longer have and fleet telematics and driver standards cover how. Your broker needs the gross vehicle weight rating of each van and any larger truck, because that decides which rules and rating questions apply.
What do monitoring, old equipment and customer contracts do to the price?
Three features of an alarm company can move how an underwriter reads it, and none of them shows on a revenue line.
- Who watches the signals. A company that sells monitoring but rents it from a wholesale central station carries one set of exposures. A company that owns a monitoring center adds property, business income, E&O and licensing exposure, and depends on power, telecommunications and software. Underwriters may ask whether the center is Underwriters Laboratories (UL) listed; ask your broker whether a UL listing changes terms.
- The installed base. Equipment age, communicator type and open service tickets all say something about future claims. Many alarm communicators used cellular radios, and older cellular networks were retired in 2022, so an inventory by network type is worth building before an underwriter asks for it.
- Customer contracts. Commercial and government customers can require endorsements and limits that add cost, depending on the carrier, and your own contract terms are part of what an underwriter reads. The contracts, licenses and bonds guide covers what customers ask for.
See how to check your customer contracts against your policies for a step-by-step method.
What can a new owner change before the first renewal?
- Correct the classes and the payroll records. Compare the codes on the policy with what each group of employees does, and keep time records where one person works in two classes. See class code corrections.
- Clean up loss runs. Ask carriers about old open claims that may be ready to close. Closing old open claims explains the process.
- Write down controls. Ladder and fall protection practices, installation and testing checklists, programming sign-off, van stock rules and customer data access rules all give an underwriter something concrete. Safety programs that earn better terms list what carriers ask for.
- Build the underwriting package. Loss runs, a vehicle and driver list, a communicator inventory, sample contract forms, license evidence and your plan for management. See what underwriters want from new owners.
- Choose limits and deductibles against your cash flow and contract minimums. Higher limits cost more, and a higher deductible can lower premium but moves cash cost to you. Raising deductibles the smart way covers the trade-off.
None of these promises a lower price. Each gives the carrier a better reason to price what you actually run.
What does a stolen van load do to your costs and your loss history?
A hypothetical example. Thieves break into a parked service van overnight and take panels, cameras and a programming laptop worth about $15,000. The company's inland marine coverage has a $1,000 deductible and the policy limits coverage for vehicles left unattended. A new owner will see three effects. The company absorbs the deductible and any amount the sublimit leaves uncovered, the claim goes on the loss runs, and a repeat may read as a control problem rather than bad luck. How much one claim moves your price depends on the carrier and your history, so ask your broker how each carrier weighs theft claims.
The fix is operational: take stock out of vans overnight, count inventory, track tools and put the rule in writing, so you can show it at renewal. The policy wording controls what is covered.
How should you put insurance in your acquisition model?
The seller's historical insurance expense may not describe what you will pay, because your limits, contracts and operations can differ from the seller's. A quality of earnings review (an independent check of how reliable and sustainable earnings are) can restate costs. Insurance is one cost a buyer can ask the reviewer to normalize, though the scope of a review varies.
If you can, ask a broker for indicative quotes on the program you plan to run before closing, and run the difference through earnings before interest, taxes, depreciation and amortization (EBITDA). If recurring monitoring revenue is what you borrowed against, your insurance line sits next to that revenue in your debt service coverage, so a lender or investor will ask what the program costs once it matches your contracts. A quote is not coverage, and carriers can change terms until the policy is bound.
Where to go next: budgeting insurance in your acquisition model and insurance in quality of earnings give the method. The core program is in the insurance after you buy guide, minimum limits come from your contracts, and choosing a broker covers who gets you the quotes.
Keep reading
- Just Bought an Alarm Installation Company? What Insurance Do You Need?
- What Happens to an Alarm Company's Workers' Comp After You Buy It?
- What Underwriters Want to See From a New Business Owner
- Safety Programs That Earn Better Insurance Terms
- Budgeting Insurance in Your Acquisition Model
- All guides for new business owners
Frequently asked questions
What affects insurance cost most for an alarm installation company?
It depends on the line. Workers' comp follows payroll, class codes and the experience mod. Auto follows vehicles, drivers and crash history. Liability and E&O follow the services sold, the customers and contracts, and the claim history. No single driver dominates for every company.
Does monitoring raise my insurance cost?
It changes the exposure. Selling monitoring adds the risk of a missed or mishandled signal, and owning a monitoring center adds property, business income and licensing exposure. Whether and how much it changes price depends on the carrier and your contracts, so ask for quotes with the monitoring model described exactly.
Can a new owner lower the insurance premium?
Often there are things to improve, such as correcting class codes, removing unused vehicles, closing old claims and documenting safety and data controls. None of that promises a lower price, because carriers underwrite each account and set their own terms.
Will a higher deductible lower my premium?
It can, but it moves more of each loss to your cash flow. Check the deductible against your lender's and customers' requirements and your own cash position before raising it.
How should I budget insurance if the seller's costs look low?
Treat the seller's historical expense with caution, since it reflects a program built for the seller's needs, not necessarily yours. Ask for indicative quotes on the program you plan to run, and share them with whoever builds your model and any quality of earnings review.
References
- NCCI: ABCs of Experience Rating (2025)
- NCCI: Workers Compensation and Employers Liability Insurance Policy, WC 00 00 00 C (carrier-hosted copy)
- O*NET OnLine: Security and Fire Alarm Systems Installers, 49-2098.00 (details)
- Wikipedia: Alarm monitoring center (secondary description of UL listing)
Just bought a business? Get your insurance reviewed.
Send Morrow the declarations pages, loss runs and key contracts you inherited. Morrow can review them against the business you bought, flag gaps and request quotes where it makes sense. Any new terms depend on carrier underwriting.
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This article is general information, not legal, tax or financial advice, and not a coverage determination. Coverage depends on the actual policy wording, carrier underwriting, your purchase agreement and your contracts. Ask your attorney and accountant about deal and legal questions.