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How to Sell Your Security Alarm Business

Quick Answer

Security Alarm businesses typically sell for 25x to 40x monthly recurring monitoring revenue (RMR) with premium multiples for accounts with low attrition and strong contract terms. Sales typically close in 4-8 months.

Security Alarm businesses with 90%+ account retention and average RMR above $40 per account typically command multiples at the higher end of the 25x-40x RMR range.
25x – 40x
SDE Multiple
Very High
Buyer Demand
4-8 months
Avg Timeline
Security monitoring contracts averaging $35-50 monthly per customer|Customer retention rates 90%+ with high switching costs|Smart home integration creating upsell opportunities 15-25% revenue growth
Key Data

Expert M&A guidance for Security Alarm business owners considering a sale.

Last updated: February 26, 2026
Typical Multiple
25x - 40x
of Seller's Discretionary Earnings
Valuation Basis
RMR
Most common for Security and Alarm
Average Timeline
4-8 months
Listing to closing
Buyer Demand
Very High
National buyers and consolidators very active
Industry Overview

The Security and Alarm Market for Sellers

Valuation25x-40x RMR|Timeline
What is a Security and Alarm business?

A Security Alarm business provides installation and monitoring of Security systems including burglar alarms fire detection video surveillance and access control for residential and commercial properties. Revenue comes from installation and recurring monthly monitoring fees.

The Security Alarm industry has experienced significant consolidation with national providers and regional consolidators actively acquiring monitoring account portfolios. Quality accounts with strong retention are commanding premium RMR multiples.

Buyers evaluate Security Alarm businesses primarily on RMR per account attrition rates contract terms and account quality. Portfolios with commercial accounts and modern equipment command the strongest multiples.

John's Take

"Security and alarm is fantastic—recurring monitoring revenue, long-term contracts, and strong margins. I love these deals. Consolidators are paying premium prices for customer bases."

— John M. Salony, ABI

Understanding what drives Security Alarm valuations can help you maximize your outcome. The businesses commanding top multiples have built accounts with strong retention favorable contract terms and modern technology.

Quick Valuation Estimate
Get a preliminary sense of your Security and Alarm business value.
Estimates only. Actual value depends on many factors.

2026 Market Trends

Current State of Security and Alarm M&A

What's driving buyer activity and valuations in the Security and Alarm sector right now.

RMR Multiple Valuation

Security Alarm businesses are uniquely valued as multiples of monthly recurring revenue. This valuation method rewards businesses that have built sticky monitoring accounts.

Account Quality Premium

Commercial accounts accounts with video monitoring and accounts with longer contract terms command higher per-account valuations. Quality matters as much as quantity.

Technology Evolution

Modern wireless and smart home systems are more valuable than legacy hardwired equipment. Account technology affects both retention and buyer interest.

Attrition Rate Critical

Account attrition directly impacts value. Portfolios with attrition below 10% annually command premium multiples while high-attrition portfolios sell at significant discounts.


Buyer Perspective

What Buyers Look for in a Security and Alarm Business

Understanding these value drivers can help you prepare your business and command a higher multiple.

Monthly Recurring Revenue

Total RMR from monitoring accounts is the primary value metric. More RMR means more value but quality and retention matter equally.

Account Retention

Annual attrition rate directly impacts valuation multiples. Portfolios with sub-10% attrition command premium multiples while high attrition reduces value significantly.

Contract Terms

Account contract terms affect transferability and value. Accounts with clear monitoring agreements and proper authorization command better valuations.

Average RMR Per Account

Higher average RMR per account indicates commercial accounts or premium services. Higher per-account revenue supports stronger valuations.

Equipment Age and Type

Modern wireless and smart systems are more valuable than aging hardwired equipment. Technology type affects both retention and ongoing service costs.

Commercial vs Residential Mix

Commercial accounts typically have higher RMR better retention and longer contracts. Portfolios with strong commercial mix command premium valuations.


Valuation

How Security and Alarm Businesses Are Valued

A clear explanation of how multiples work and what drives your number.

The SDE Method

Most Security and Alarm businesses under $5M in revenue are valued using Seller's Discretionary Earnings (SDE). SDE represents the total financial benefit to a single working owner - essentially, net profit plus owner salary, personal expenses run through the business, depreciation, and one-time costs.

Once SDE is calculated, it's multiplied by an industry-specific multiple (typically 25x to 40x for Security and Alarm) to arrive at an estimated business value.

What About EBITDA?

EBITDA is typically used for larger businesses ($5M+ revenue) with absentee ownership. Unlike SDE, it does not add back the owner's salary.

Example Valuation

Annual Revenue$600,000
Net Profit (tax return)$80,000
+ Owner Salary$70,000
+ Personal Expenses$15,000
+ Depreciation$20,000
= Adjusted SDE$185,000
Estimated Value Range
$250,000
to
$400,000
at 25x - 40x SDE

Buyer Types

Who Buys Security and Alarm Businesses?

Different buyer types bring different deal structures, timelines, and pricing.

🏢

Private Equity

PE firms acquiring Security and Alarm companies as platform or add-on investments. They typically pay the highest multiples, especially for businesses with $500K+ SDE.

Highest multiples (3.5x-5.0x+)
May offer earnouts or equity rollover
Often want owner to stay 1-2 years
Focused on growth potential
🤝

Strategic Acquirers

Larger Security and Alarm companies expanding geographically or adding capabilities. They value your customer base, team, and territorial presence.

Strong multiples (3.0x-4.0x)
Fastest due diligence
May absorb into existing brand
Shortest transition period
👤

Individual Buyers

Qualified individuals using SBA financing to acquire their first or next business. They want a stable, profitable operation they can manage.

Typical multiples (2.5x-3.5x)
SBA 7(a) or conventional financing
Want turnkey operations
Longer transition support needed
The Process

How Selling Your Security and Alarm Business Works

A proven five-step process designed to protect your confidentiality and maximize your outcome.

01

Confidential Valuation

We assess your financials, contracts, equipment, and market position to determine a realistic value range.

Week 1-2
02

Preparation & Packaging

We prepare a Confidential Business Review (CBR) - a professional document that presents your business to qualified buyers.

Week 2-4
03

Confidential Marketing

Your business is marketed to our buyer network. Every buyer signs an NDA before receiving any identifying information.

Month 2-4
04

Negotiation & Due Diligence

We manage incoming offers, negotiate terms on your behalf, and guide you through buyer due diligence.

Month 4-7
05

Closing & Transition

We coordinate with all parties to close the deal and support the ownership transition.

Month 6-10

Watch Out For

Common Challenges When Selling a Security and Alarm Business

Being aware of these issues early lets you address them before they cost you money at closing.

Account Attrition

High attrition rates significantly reduce value. Improving retention before sale increases your multiple substantially. Even small attrition improvements have large value impact.

Contract Documentation

Proper monitoring agreements and customer authorizations are essential. Missing or incomplete contracts create legal risk that reduces value or eliminates buyers.

Technology Obsolescence

Legacy hardwired systems may require expensive upgrades. Buyers will assess technology age and factor upgrade costs into valuations.

Central Station Relationships

Monitoring relationships and costs affect profitability. Buyers will analyze your central station arrangements and may have different capabilities post-acquisition.


Common Questions

Security and Alarm Business Sale FAQs

How much is my Security Alarm business worth?

Security Alarm businesses typically sell for 25x to 40x monthly recurring revenue. Attrition rate contract quality and account mix all influence where you fall within this multiple range.

How long does it take to sell a Security Alarm business?

Most Security Alarm portfolio sales close within 4-8 months - faster than many industries due to established buyer pools and straightforward valuation methods.

What do buyers look for?

Buyers prioritize total RMR low attrition proper contracts commercial accounts and modern equipment. They want accounts that will retain and continue generating monthly revenue.

How does attrition affect value?

Attrition directly impacts multiples. A portfolio with 8% annual attrition might sell for 35x RMR while one with 15% attrition might only achieve 25x. Reducing attrition increases value dramatically.

What about my installation revenue?

Installation revenue is valued separately and typically at lower multiples than monitoring RMR. The monitoring accounts are the primary value driver in Security Alarm transactions.

Do I need to stay after selling?

Most portfolio sales include brief transition periods of 30-60 days for account transfer. Ongoing involvement is typically minimal compared to other business types.

How do I prepare for sale?

Reduce attrition through service quality. Ensure all contracts are complete and current. Document account information thoroughly. Upgrade aging systems where cost-effective.


Your Advisor
John M. Salony
Accredited Business Intermediary & M&A Advisor

John Salony is an ABI-certified M&A advisor specializing in the confidential sale of privately owned businesses. With 20+ years of business experience and an MBA, he brings the financial fluency, negotiation depth, and buyer network that Security and Alarm business owners need — guiding you from valuation through closing with discretion and results.

ABI Accredited Business Intermediary
MBA — Business Administration
Licensed Commercial Real Estate Agent
20+ Closed Transactions
Full bio →

"John understood Security Alarm valuation and connected us with serious national buyers. The process was straightforward and we achieved a strong multiple for our account base."

Former Security Alarm Business Owner
Residential and commercial Security monitoring Southeast region

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