Updated
What commercial security systems cost in 2026
Most commercial security systems land between $3,000 and $25,000 installed, plus $30 to $150 a month for monitoring. That spread is the honest answer, and the guides below are the arithmetic behind it: one per system, each with the range in the first sentence, per-unit prices, what moves the number, and where the figures came from.
At a glance
Commercial security cost by system
The headline range for each system, with the guide behind it. Every figure is a labeled ballpark for planning, not a quote.
| System | Installed | Recurring | Priced per |
|---|---|---|---|
| Commercial security system cost | $3,000 – $25,000 | $1 – $5 | Per square foot, installed |
| Security camera installation cost for a business | $3,000 – $9,000 | $300 – $1,500 | Per camera, installed (labor plus hardware) |
| Access control installation cost per door | $1,500 – $3,500 | $3,000 – $5,000 | Per door, installed (standard opening) |
| Commercial fire alarm system cost | $1 – $3 | $4 – $12 | Per square foot, new construction |
| Business alarm monitoring cost per month | $30 – $75/mo | $60 – $150/mo | Per month, basic commercial intrusion |
| Commercial alarm system cost | $1,500 – $4,000 | $4,000 – $10,000 | Per alarmed opening (door or window contact, installed) |
The guides
One cost guide per system
Each guide is dated, sourced, and revisited quarterly. The date at the top of a guide moves only when its numbers do.
Commercial security system cost in 2026
$3,000 – $25,000
Commercial security system cost in 2026: $3,000 to $25,000 installed for most businesses, plus $40 to $150 a month. Per square foot, per door, per camera.
Read the cost guideSecurity camera installation cost for a business in 2026
$3,000 – $9,000
Security camera installation cost in 2026: $3,000 to $9,000 for a 4 to 8 camera system, $300 to $1,500 per camera installed. Per-unit and storage math.
Read the cost guideAccess control installation cost per door in 2026
$1,500 – $3,500
Access control installation cost in 2026: $1,500 to $3,500 per door installed, $3,000 to $5,000 all-in with first-year software. Hardware and cloud costs.
Read the cost guideCommercial fire alarm system cost in 2026
$1 – $3
Commercial fire alarm cost: $1 to $3 per square foot new build, $4 to $12 retrofit, roughly $2,000 to $250,000+ installed, plus monitoring and inspection.
Read the cost guideBusiness alarm monitoring cost per month in 2026
$30 – $75/mo
Commercial alarm monitoring costs $30 to $75 a month for basic intrusion, $60 to $150 with fire, and $150 to $500+ for video-verified or multi-site accounts.
Read the cost guideCommercial alarm system cost in 2026
$1,500 – $4,000
Commercial alarm system cost in 2026: $1,500 to $4,000 installed for a small business, $4,000 to $10,000 mid-size, plus $30 to $150 a month monitoring.
Read the cost guide
Get your building priced.
Ranges tell you what to expect. A licensed contractor who has seen the building tells you the number. One short form, no obligation, no fee.