| Item | Typical range | What it covers |
|---|---|---|
| Alarm system (equipment) | $200 – $600+ | Sensors, control panel, and keypad — DIY kits at the low end, professional installs higher. |
| Professional monitoring (per month) | $15 – $60 / mo | A 24/7 center that verifies alarms and can dispatch. Watch the contract length. |
| Security cameras (per camera) | $50 – $300 | Indoor, outdoor, or doorbell cameras, plus any cloud storage fee. |
| Professional installation | $100 – $400 | One-time labor for a professionally installed system. DIY avoids this. |
| Smart lock / access control | $120 – $500 / door | Per door for keypads, smart locks, or fobs that control who gets in. |
| Security guard (per hour) | $20 – $50 / hr | Unarmed on-site or mobile-patrol officers. Armed and event rates are higher. |
Estimates only — confirm the price, the monitoring terms, and the cancellation terms in writing before you sign.
Start with the parts that affect price
A basic setup costs less because it covers fewer doors, windows, and areas. A larger home or business usually costs more because it needs more devices, more labor, and sometimes stronger networking or power backup.
Typical ranges help you plan, but they are not quotes. In general, alarm equipment often runs about $200-$600+. Security cameras often run about $50-$300 each plus any cloud storage fee. Professional monitoring is often about $15-$60 per month. Professional installation is often about $100-$400 one time. Smart locks or access control are often about $120-$500 per door. Unarmed guards are often about $20-$50 per hour, with armed or event coverage often higher.
Price usually goes up or down based on:
- Property size and layout
- How many entry points need protection
- Indoor vs. outdoor equipment
- Wired vs. wireless equipment
- Local storage vs. cloud storage for cameras
- Self-monitoring vs. 24/7 professional monitoring
- Basic app features vs. advanced automation
- Business needs like access control, multiple users, or after-hours alerts
If you are still deciding what makes sense, start with home security systems or review broader costs.
DIY vs. professionally installed and monitored
DIY can cost less up front. Professionally installed and monitored systems often cost more, but some people prefer them because setup is handled for them and alerts may be reviewed by a monitoring center.
A simple DIY setup may include a starter alarm kit and a few cameras. A professionally installed setup may include sensor placement, device testing, app setup, and training. Neither option can guarantee that crime, loss, injury, or property damage will not happen. No security measure can promise safety.
When comparing DIY and professional options, ask:
- Who installs it, and what is included? Mounting, wiring, app setup, testing, and cleanup are not always included.
- What happens if internet or power goes down? Ask about cellular backup and battery backup.
- Can you add devices later? Good systems should be able to grow with your needs.
- Who owns the equipment? Make sure the contract says whether you own it outright or are paying over time.
- Can you use your own phone for alerts without monthly monitoring? Some systems allow this, some do not.
For a deeper look at tradeoffs, see DIY vs. professional security and professional monitoring.
What the monthly monitoring fee really covers
Monthly monitoring is usually a separate cost from equipment and installation. Typical monitoring ranges are about $15-$60 per month, but the real price depends on the level of service, the equipment, the area, and whether a contract is required.
A higher monthly fee may include:
- 24/7 professional alarm handling
- Cellular communication backup
- App alerts and remote arming/disarming
- Video verification or camera integrations
- Extended warranties or service plans
Read the contract carefully before signing. Focus on:
- Contract length
- Auto-renewal terms
- Monthly fee and any increases
- Cancellation policy
- Early-termination charges
- Service or repair fees
Do not sign on the spot because of a door-to-door pitch or a phone offer that pressures you to "act today." If you want help knowing what to check, use the alarm contract checklist.
If you request to be matched with local companies, KeepWatchly's matching service is free to you. Participating companies pay a flat fee. If you choose to let companies contact you, remember that consent to be contacted, including by autodialer, prerecorded or artificial voice, and SMS, is not a condition of any purchase, and you can opt out anytime.
Cost by item: where people often under-budget
Many buyers focus only on the starter package price. The add-ons are often what change the real total.
Alarm devices: Door/window sensors, motion sensors, glass-break sensors, keypads, sirens, and panic buttons add up quickly when you protect more rooms or a larger storefront.
Security cameras: One camera may be affordable, but four to eight cameras, better night vision, weather-rated housings, recording storage, and pro mounting can change the budget fast. Learn more about security cameras.
Smart locks and access control: For small businesses, one front door is simple. Multiple doors, multiple users, schedules, audit trails, and remote credential management raise cost. Residential smart locks are usually simpler, but the door type and existing hardware still matter.
Installation: A one-story home with easy mounting points costs less than a brick building, a finished space where wiring is harder, or a site that needs ladders, conduit, extra drilling, or network upgrades.
Ongoing fees: Cloud video storage, service plans, extra app features, and monitoring can make a low up-front price more expensive over time.
For businesses, after-hours response plans, access control, camera retention needs, and guard coverage can all affect budget. If you need broader options, see business security.
How to compare quotes line by line
The best way to avoid overpaying is to compare the same scope from more than one licensed, insured company. You compare quotes. You choose who to hire.
Use this simple checklist:
- List the exact equipment: number of sensors, cameras, smart locks, keypads, and any backup devices.
- Separate one-time and monthly costs: equipment, installation, activation, training, cloud storage, and monitoring.
- Check model names and features: resolution, night vision, mobile access, cellular backup, warranty length.
- Ask what is not included: permit fees, ladder work, patching, networking, batteries, or service calls.
- Verify license and insurance yourself: hire only licensed, insured, properly registered security companies. Some states also license or register alarm-company solicitation and installation.
- Read cancellation terms before signing: especially if the deal includes a long monitoring agreement.
If you want a starting point, KeepWatchly can help you get matched with local companies at no cost. Only share basic details about what you want to protect and your contact information. Never hand over sensitive information like SSNs, financial account numbers, or immigration records just to get pricing.
Start with the areas you actually need to protect, compare the same setup from 2 to 3 licensed local companies, and separate one-time costs from monthly fees. Read the contract, auto-renewal, and cancellation terms before you sign, and remember that all prices are estimates, not guarantees.
Common questions
What is the cheapest reasonable way to start with security?
For many homes, the lowest-cost starting point is a small alarm kit or one to two cameras covering the main entry areas. Typical alarm equipment may run about $200-$600+, and cameras may run about $50-$300 each, plus any storage fee. The real price depends on the property, the devices, installation, monitoring, and your area.
Is professional monitoring worth the monthly cost?
It depends on your budget and what kind of response you want. Some people prefer self-monitoring through app alerts. Others want 24/7 professional monitoring, which often runs about $15-$60 per month. Ask exactly what the fee includes, whether there is a contract, how long it lasts, whether it auto-renews, and what cancellation or early-termination charges apply.
How many quotes should I get before I hire a company?
Usually at least 2 to 3. Make sure each company is quoting the same scope so you can compare fairly. Verify that the company is licensed, insured, and properly registered in your state or local area, and read the full contract before signing. Do not let a door-to-door or phone salesperson rush you into a same-day decision.