Security Systems Unlimited is a locally owned and family operated business for over 30 years and has provided our customers with professional and personal service. Our customers have access to ADT's state of the art U.L. listed Customer Care Centers 24 hours a day, 7 days a week. We are Northern California's most experienced dealer and we offer professional quick and easy next day installation!

Buy Local & Save Money

Proudly Serving

  • Sacramento
  • Stockton
  • Galt
  • Elk Grove
  • Folsom
  • El Dorado Hills
  • Rancho Cordova
  • Rocklin
  • Roseville
  • Natomas
  • W. Sacramento
  • Davis
  • Lincoln
  • Vacaville
  • Reno
  • Sparks
  • Carson City
  • S. Lake Tahoe
  • Fernley
  • Fallon
  • Spanish Springs
  • Sun Valley
  • Minden
  • Gardnerville
  • Silver Springs
Wireless Package starting at #35.99 per month

ADT is the #1 home security company in America, helping protect over 5 million American homes and families, 24 hours a day, 7 days a week. At Security Systems Unlimited we offer a variety of home security products and services to meet your needs and keep you and your loved ones safe.

Join ADT's network. Your family is Our family!

Don't Become a Statistic

According to the Federal Bureau of Investigation, 2006 National Crime Report, in the time it takes you to read this sentence, one burglary will be committed in the United States. In this same time a fire department will be responding to a fire somewhere in this country.

  • One out of every five homes will experience a burglary, fire or carbon monoxide poisoning within the next six years.
  • 38% of assaults and 60% of rapes occur during a home invasion.
  • Twenty people die by fire in their homes every 24 hours.
  • More than 1,800 deaths occur each year from carbon monoxide poisoning.
  • One out of every three homes will have a medical emergency this year.
  • ADT monitored residential security systems can help prevent you and your family from becoming a statistic!
Call Today, Install Tomorrow 
(916) 922-3733 CA
(775) 747-6150 NV
*$99.00 Customer Installation Charge. 24 Month (CA) Monitoring Agreement required at $36.99 per month ($887.76) or 36 Month (NV) Monitoring Agreement required at $36.99 per month ($1,331.64). Form of payment must be by credit card or electronic charge to your checking or savings account. Offer applies to homeowners only. Local permit fees may be required. Satisfactory credit history required. Certain restrictions may apply. Offer valid for new ADT Authorized Dealer customers only and not on purchases from ADT LLC.. Other rate plans available. Cannot be combined with any other offer. CA Contractors License 884812 / Dept. of Consumer Affairs ACO #6248 / NV Contractors License 68510.