Tech for Alarm & Security: The Software Stack That Actually Makes Money

Your techs are in homes 10 hours a day, RMR leaks 4% a month, and the panel-takeover paperwork is from 2019. The right stack fixes all three. The stack in order, what each piece costs, and when to buy versus build. One weekend of setup ends the billing-leak era — if you buy in the right order. Also see Alarm & Security, AI for Alarm & Security, and Payments for Alarm & Security.

The stack, in the order that matters

Buy in this order — each layer pays for the next:

• 1. RMR billing — the operating system. Recurring invoices, autopay, dunning, account updater, attrition reporting. In this trade the billing platform is the business — everything else hangs off it.
• 2. Dispatch and scheduling. Install and service scheduling, takeover visits, technician calendars. It can live inside the billing platform or beside it — but it must share the customer record.
• 3. The phone system — the front door. A business line that books takeover visits, records calls, texts customers. Your personal cell is not a phone system.
• 4. Accounting — the scoreboard. QuickBooks Online or Xero, synced to billing. Midnight bookkeeping ends when data stops being retyped.
• 5. Quoting for integrators — the proposal layer. System design and professional proposals for camera and commercial jobs. A napkin quote doesn't win the $10,000 install.
• 6. Photo documentation — the proof layer. CompanyCam (Core $63/mo for one user, Crew $119/mo for three, annual billing): camera placements, panel serials, before-and-after — GPS-pinned. The camera-placement photo ends the "you put it in the wrong spot" dispute.

The platforms, honestly compared

Prices checked October 2026; annual billing shown first.

• AlarmBiller (Bold Group) — web-based RMR billing built for security dealers: recurring invoices, work orders, quotes, payment processing. Best for: dealers up to a few thousand accounts who want billing-first software that sets up in hours. Skip if: you need full ERP — accounting, inventory, multi-warehouse.
• SedonaOffice (Bold Group) — the full alarm-dealer ERP: RMR billing, accounting, inventory, installations, service, reporting. Quote-based. Best for: dealers past ~3,000 accounts or with commercial complexity. Skip if: under 1,000 accounts — the implementation will eat a quarter. (Dealers commonly graduate AlarmBiller → SedonaOffice; the migration path exists.)
• ServiceTitan / Jobber — the install-and-service side. Best for: dealers whose pain is dispatch and quoting, pairing with AlarmBiller for RMR. Skip if: RMR billing is the pain — neither is a billing platform.
• D-Tools — system design and quoting for integrators, from ~$99/user/mo. Best for: commercial camera/access-control jobs where the proposal has to look engineered. Skip if: residential-only — overkill.

Two notes the brochures skip. The AlarmBiller-to-SedonaOffice graduation is the industry's standard growth path — buy the billing platform you'll outgrow gracefully, not the ERP you'll underuse painfully. And RMR billing platforms live or die on dunning and Account Updater: ask every vendor for their decline-recovery rate before you ask about features. Whatever you pick, run 20 real accounts through the trial billing cycle before you migrate — billing migrations are where dealers go to die.

Bargain corner: Workiz no-cost tier (2 users), paid from ~$200/mo — fine for the install side of a small dealer, not an RMR platform.

Buy vs. build: when custom software makes sense

For 95% of dealers, the answer is buy. The vertical platforms exist for a reason.

Build when the software is the advantage:

• An RMR analytics dashboard your billing platform can't produce — cohort attrition, decline-recovery rates, upsell conversion by tech, lifetime value by acquisition channel. This is the dashboard that runs a 10,000-account dealer.
• A customer portal for commercial accounts: every location's panel status, service history, and invoices in one place — the thing that wins the 50-location contract.
• Integration glue between the billing platform and the central station's data — automated "panel offline" outreach before the customer calls you.

A real build starts at $25,000–$75,000 plus 15–20% a year in maintenance. Nearshore senior engineers cut that roughly in half — Nova offers a first consultation free, and dealers engage dedicated 2–3 person senior-engineer teams through that consultation when a real build is justified. If you cannot name the revenue it unlocks, you do not need it.

Most "custom" needs die at the integration layer: AlarmBiller or SedonaOffice plus Zapier or Make covers automated dunning texts, review requests, and QuickBooks sync for under $200/mo. Build only when the software wins the contract — and if you can't name the contract, you don't need the build.

What the whole stack costs: 500 accounts, 2,000 accounts, 10,000 accounts

Monthly totals, annual billing, before card fees:

• 500 accounts: AlarmBiller ~$300 + QuickBooks Simple Start $38 + business line ~$20 + AI answering ~$79 = ~$440/mo.
• 2,000 accounts: AlarmBiller ~$600 + QuickBooks Essentials $85 + phone ~$199 + AI answering ~$150 + CompanyCam Crew $119 + dunning automation ~$99 = ~$1,250/mo.
• 10,000 accounts: SedonaOffice (quote-based, budget $2,000–$3,000/mo) + phone + AI + analytics — ~$3,500–$4,500/mo. The RMR analytics dashboard pays for itself at this scale.

Software should run well under 2% of revenue — a $1M-RMR dealer at $1,250/month is at 1.5% of monthly RMR. The expensive mistake is never the subscription; it is the dealer running on 2019 takeover paperwork and a 4% monthly RMR leak.

Marketing spend sits outside the stack: residential security leads run $50–$120 in 2026 benchmarks, and you can dispute invalid leads for credit. The takeover visit is the cheapest lead you have — the hardware is already on the wall.

Where dealers waste money

• Full SedonaOffice at 300 accounts — an ERP for the commercial complexity you do not have yet.
• Six apps that do not talk — every handoff between them is a dropped ball.
• Seats nobody uses — audit twice a year; the $29/mo seat for the tech who quit in March adds up.
• A CRM nobody opens — the billing platform is the customer record in this trade; a second one is a second job.
• "No-cost" software with strings — if the price is zero, your data is the product or locked in. Check the export story first.
• Building custom too early — a $40,000 RMR dashboard for a 500-account dealer is a hobby, not an investment.
• The AI add-on nobody turned on — billing and dispatch apps now upsell AI features that bill monthly while nobody configures them. Audit: if no one's trained it, cancel it.
• Marketing software before the reviews exist — ads with 12 reviews is paying to advertise that nobody trusts you yet.

FAQ

AlarmBiller or SedonaOffice? Under ~3,000 accounts: AlarmBiller — billing-first, sets up in hours. Past that or with commercial complexity: SedonaOffice. The migration path between them exists; buy the one you'll outgrow gracefully.

Do I still need Jobber or ServiceTitan? If dispatch and quoting are the pain, yes — pair it with AlarmBiller for RMR. Neither is a billing platform.

When does the RMR analytics dashboard make sense? Around 5,000–10,000 accounts, when cohort attrition and decline-recovery rates are numbers you manage weekly.

Do I need to leave my personal cell? Yes. Call recording ends every "he said the price was X" dispute, and AI books takeover visits without touching your personal number.

When do I hire an office manager instead of more software? Software first, until ~2,000 accounts. Hire the office manager when billing exceptions, dunning escalations, and books exceed one person's day.

Should commercial accounts get the portal? Yes — the 50-location portal is why the contract renews. Residential accounts get the autopay text; commercial gets the portal.

This month: pick the billing platform, port the number, connect QuickBooks, turn on dunning and Account Updater. One weekend ends the billing-leak era. AI answering, custom analytics, commercial portals — all after the foundation. Then measure: RMR leak rate, decline-recovery rate, days-to-paid. The stack is working when all three move. When money moves faster, read Payments for Alarm & Security so processors do not take their cut.