Security & internet

Alarm systems, local alarm rules, and your internet bill

Monitoring costs $20 to $60 a month, and false alarms can cost far more than that if you don't know the local rules. Internet is usually the easiest bill to cut with one phone call.

Last checked Oct 20, 2026

Alarm rules in Mountain View

Alarm permit$20 a year, required
False alarm feesFirst false alarm free in a rolling 12 months, then $100, $150, $250 and $500+
Who respondsMountain View Police Department

146 residential burglaries in 2024 (137 in 2023, 222 at the 2020 peak): roughly 1.8 per 1,000 residents a year (California DOJ).

What monitoring costs

ServiceMonitoring per monthContract
Ring Protect~$20None
SimpliSafe~$22–32None
ADT (professional install)~$25–61Often 36 months

Prices from comparison sites, not the companies. A monitored burglar and fire alarm often earns 5–15% off home insurance, which is $125–375 a year on a $2,500 policy: real money, but rarely enough on its own to pay for monitoring.

Internet

Available here: Xfinity cable everywhere; AT&T Fiber in much of the city; Astound fiber in about a fifth of it; Verizon and T-Mobile 5G home internet; Starlink.

Call when your promo price ends

$360–720 a year

Introductory prices typically jump $30–60 a month after 12 months. Calling to ask for a current offer, or switching to fiber where available, usually brings it back down.

Low-income plans

Xfinity Internet Essentials: $14.95/month (75 Mbps) or $29.95 (100 Mbps). Access from AT&T: for households in a qualifying program or below 200% of the poverty line.

Mountain View's utility users' tax is 3% on landlines and 2.5% on mobile phones. Internet access isn't taxable under federal law. We found no senior exemption.

Sources
  1. Mountain View Police: alarm permits · Sunnyvale DPS: alarm permit · Cupertino fee schedule 2023–24
  2. California DOJ OpenJustice crime data
  3. FCC broadband data via broadbandmap.com · Xfinity Internet Essentials · Access from AT&T

Facts are checked against the public sources listed on each page. Rates change every year; each page shows when it was last checked. Individual bills are confidential in California, so personal numbers are estimates from public rates. Nothing here is legal, tax or insurance advice.