About A-Bell Alarms

Temecula Valley’s Trusted Security Experts

Welcome to A-Bell Alarms, where your security is our top priority. Serving the Temecula Valley since 1985, we specialize in crafting personalized security systems that fit your unique needs. Discover the pillars that make A-Bell Alarms more than just a security provider; we’re your neighbors committed to protecting our community.

Kathy and Chris Sizemore

About A-Bell Alarms

Service & Monitoring for Your Honeywell & Ademco Alarms

Is your Honeywell or Ademco alarm system in need of a tune-up? At A-Bell Alarms, we specialize in servicing and monitoring your existing security systems, extending their lifespans and ensuring top performance. Trust in our 40+ years of expertise with Ademco and Honeywell equipment.

Kathy and Chris Sizemore

About A-Bell Alarms

Service & Monitoring for Your Honeywell & Ademco Alarms

Is your Honeywell or Ademco alarm system in need of a tune-up? At A-Bell Alarms, we specialize in servicing and monitoring your existing systems, extending their lifespans and ensuring top performance. Trust in our 40+ years of expertise with Ademco and Honeywell equipment.

Kathy and Chris Sizemore

Temecula Valley's Local Security Company

Discover A-Bell: Setting the Standard for Security

Founded in 1971 by former police officer Gene Sizemore, A-Bell Alarms has grown into a second-generation, family-operated enterprise. Relocated to Temecula in 1985, we've been an integral part of this community’s safety for decades. Today, we're run by Chris and Kathy Sizemore, your dynamic duo in security systems.

Chris, steeped in the security industry from a young age, is dedicated to offering you top-notch service where you're always the priority. Kathy, driven by her own life experiences, is passionate about delivering foolproof Temecula security systems that never let you down.

Together, they bring over 60 years of collective experience to the table. You don’t just get a security system with A-Bell; you get a promise of integrity, dependability, and community support.

A-Bell Alarms: Award-Winning Security in Temecula

Your security is our top priority, and it's an honor when our dedication is recognized. A-Bell Alarms won the 2021 Bronze Business of the Year award from the Temecula Valley Chamber of Commerce. We also won the 2022 Light Industrial Installation of the Year award from Resideo Premier Security Dealers. These awards validate our commitment to providing superior security systems and services to our community in the Temecula Valley. Choose A-Bell Alarms for proven, award-winning security solutions and experience the peace of mind you deserve.

A-Bell Alarms recognized by Resideo as the Premier Security Dealer 2022 Light Commercial Installation of the Year. Award Winning Business Security Systems.
2021 Bronze Business of the Year Temecula Valley Chamber of Commerce

Our Mission

The mission of A-Bell Alarms is to be a trusted partner with families and businesses in our community, developing security solutions designed for their unique needs using high-quality, dependable security technologies, aiding them in protecting lives and securing valuables with confidence.

Our Core Values

Relationships: Long-term, personal relationships with our clients.With A-Bell Alarms, you're not a number, you're our neighbor.

Integrity: Being honest and trustworthy is the cornerstone of the long-term relationships we enjoy with our clients. At A-Bell Alarms, we understand that trust is earned and integrity is how we earn it.

Dependability: The products we install and the services we provide bring peace of mind to the clients we serve. We create Peace of Mind through dependable, high-quality products and reliable installation procedures."

Community: The community we serve is the very same community we call home. Being a trusted partner in our community means supporting its residents and business owners, giving back through volunteering, and contributing to the safety of the community by supporting the law enforcement officers who keep watch over it.

Temecula Valley's Local Security Company

Discover A-Bell: Setting the Standard for Security

Founded in 1971 by former police officer Gene Sizemore, A-Bell Alarms has grown into a second-generation, family-operated enterprise. Relocated to Temecula in 1985, we've been an integral part of this community’s safety for decades. Today, we're run by Chris and Kathy Sizemore, your dynamic duo in security systems.

Chris, steeped in the security industry from a young age, is dedicated to offering you top-notch service where you're always the priority. Kathy, driven by her own life experiences, is passionate about delivering foolproof Temecula security systems that never let you down.

Together, they bring over 60 years of collective experience to the table. You don’t just get a security system with A-Bell; you get a promise of integrity, dependability, and community support.

A-Bell Alarms: Award-Winning Security in Temecula

Your security is our top priority, and it's an honor when our dedication is recognized. A-Bell Alarms won the 2021 Bronze Business of the Year award from the Temecula Valley Chamber of Commerce. We also won the 2022 Light Industrial Installation of the Year award from Resideo Premier Security Dealers. These awards validate our commitment to providing superior security systems and services to our community in the Temecula Valley. Choose A-Bell Alarms for proven, award-winning security solutions and experience the peace of mind you deserve.

A-Bell Alarms recognized by Resideo as the Premier Security Dealer 2022 Light Commercial Installation of the Year. Award Winning Business Security Systems.
2021 Bronze Business of the Year Temecula Valley Chamber of Commerce

Our Mission

The mission of A-Bell Alarms is to be a trusted partner with families and businesses in our community, developing security solutions designed for their unique needs using high-quality, dependable security technologies, aiding them in protecting lives and securing valuables with confidence.

Our Core Values

Relationships: Long-term, personal relationships with our clients.With A-Bell Alarms, you're not a number, you're our neighbor.

Integrity: Being honest and trustworthy is the cornerstone of the long-term relationships we enjoy with our clients. At A-Bell Alarms, we understand that trust is earned and integrity is how we earn it.

Dependability: The products we install and the services we provide bring peace of mind to the clients we serve. We create Peace of Mind through dependable, high-quality products and reliable installation procedures."

Community: The community we serve is the very same community we call home. Being a trusted partner in our community means supporting its residents and business owners, giving back through volunteering, and contributing to the safety of the community by supporting the law enforcement officers who keep watch over it.

Temecula Valley's Local Security Company

Discover A-Bell: Setting the Standard for Security

Founded in 1971 by former police officer Gene Sizemore, A-Bell Alarms has grown into a second-generation, family-operated enterprise. Relocated to Temecula in 1985, we've been an integral part of this community’s safety for decades. Today, we're run by Chris and Kathy Sizemore, your dynamic duo in security systems.

Chris, steeped in the security industry from a young age, is dedicated to offering you top-notch service where you're always the priority. Kathy, driven by her own life experiences, is passionate about delivering foolproof Temecula security systems that never let you down.

Together, they bring over 60 years of collective experience to the table. You don’t just get a security system with A-Bell; you get a promise of integrity, dependability, and community support.

A-Bell Alarms: Award-Winning Security in Temecula

Your security is our top priority, and it's an honor when our dedication is recognized. A-Bell Alarms won the 2021 Bronze Business of the Year award from the Temecula Valley Chamber of Commerce. We also won the 2022 Light Industrial Installation of the Year award from Resideo Premier Security Dealers. These awards validate our commitment to providing superior security systems and services to our community in the Temecula Valley. Choose A-Bell Alarms for proven, award-winning security solutions and experience the peace of mind you deserve.

A-Bell Alarms recognized by Resideo as the Premier Security Dealer 2022 Light Commercial Installation of the Year. Award Winning Business Security Systems.
2021 Bronze Business of the Year Temecula Valley Chamber of Commerce

Our Mission

The mission of A-Bell Alarms is to be a trusted partner with families and businesses in our community, developing security solutions designed for their unique needs using high-quality, dependable security technologies, aiding them in protecting lives and securing valuables with confidence.

Our Core Values

Relationships: Long-term, personal relationships with our clients.With A-Bell Alarms, you're not a number, you're our neighbor.

Integrity: Being honest and trustworthy is the cornerstone of the long-term relationships we enjoy with our clients. At A-Bell Alarms, we understand that trust is earned and integrity is how we earn it.

Dependability: The products we install and the services we provide bring peace of mind to the clients we serve. We create Peace of Mind through dependable, high-quality products and reliable installation procedures."

Community: The community we serve is the very same community we call home. Being a trusted partner in our community means supporting its residents and business owners, giving back through volunteering, and contributing to the safety of the community by supporting the law enforcement officers who keep watch over it.

Loy Miller
Loy Miller
2023-08-04
I have had A-Bell Alarms for my residence for more than 10 years. They have always been responsive and professional. The personalized service they provide is great. Good Job!
Rico Suave
Rico Suave
2021-11-23
Chris called me back shortly after leaving him a voice mail. He helped me setup an existing but unused system in the house and I was able to get up and running in a very short period of time with a minimal cost. Would highly recommend to anyone interested in good customer service. Chris was punctual, helpful and I got exactly what I was looking for.
Jennifer Nelson
Jennifer Nelson
2020-10-15
We have been using A-Bell alarms to secure our medical practice for many years. They are an extremely professional, attentive, responsive, local company. Just recently their high quality sensor alerted us to water dripping in the early stages of a water heater leak saving us from a massive flood and saving us from a huge expense. I would recommend A-Bell alarms to any business or residential customer. We are so happy with their service and will be their customer for many years to come.
Jon Gerke
Jon Gerke
2020-09-11
I am so pleased and overly satisfied with the service A-Bell alarms has given us. They're professional and reliable, always willing to fix a problem. I've been with them ever since I opened my business in 1998. Great service and great communication!
Tina Gottlieb
Tina Gottlieb
2020-08-25
A-Bell alarm made sure we had a system that met our needs and was very professional and personalized. I am so pleased with the service.
KR Lewis
KR Lewis
2020-08-18
Both of our family businesses have been using A-bell alarms for our security monitoring for many years. They are very knowledgeable about what they do and always respond quickly when we need help. I highly recommend them!
LEWIS DRY CLEANERS LEWIS DRY CLEANERS
LEWIS DRY CLEANERS LEWIS DRY CLEANERS
2020-01-24
We have been using A Bell security for over 30 years for both of our businesses and home I can sleep peaceful at night knowing they’re on watch the bad guys better look out👍
Judy Zamiski
Judy Zamiski
2017-12-02
This companies customer service is phenominal. We have been with A-Bell Alarms since 1989 and have never had a problem with the company. They are honest people and help you at a moment's notice.

Professional Memberships

A-Bell Alarms is proud to be a member of the following local, state, and national organizations.

Inland Empire Alarm Association Member Logo
2023 Murrieta Wildomar Chamber of Commerce Member
2023 Temecula Valley Chamber of Commerce Member

Temecula Valley’s First Alert Pro

Kathy and Chris Sizemore, Owners of A-Bell Alarms

Kathy and Chris Sizemore — Temecula Valley’s “Dynamic Duo of Security”

Your Local Security Provider

Choosing A-Bell Alarms means choosing safety, expertise, and personalized service. As First Alert Pro Resideo Premier Security Dealers, we offer you the advantages of the latest security technologies provided by highly skilled security technicians. We serve Southwest Riverside County, including Temecula, Murrieta, Wildomar, Lake Elsinore, and Menifee. With us, you’re not just a client but a valued neighbor, benefitting from hands-on service and tailored security solutions. Experience the First Alert Pro difference with A-Bell Alarms.

Temecula Valley’s First Alert Pro

Kathy and Chris Sizemore, Owners of A-Bell Alarms

Your Local Security Provider

Choosing A-Bell Alarms means choosing safety, expertise, and personalized service. As First Alert Pro Resideo Premier Security Dealers, we offer you the advantages of the latest security technologies provided by highly skilled security technicians. We serve Southwest Riverside County, including Temecula, Murrieta, Wildomar, Lake Elsinore, and Menifee. With us, you’re not just a client but a valued neighbor, benefitting from hands-on service and tailored security solutions. Experience the First Alert Pro difference with A-Bell Alarms.

Temecula Valley’s First Alert Pro

Kathy and Chris Sizemore, Owners of A-Bell Alarms

Your Local Security Provider

Choosing A-Bell Alarms means choosing safety, expertise, and personalized service. As First Alert Pro Resideo Premier Security Dealers, we offer you the advantages of the latest security technologies provided by highly skilled security technicians. We serve Southwest Riverside County, including Temecula, Murrieta, Wildomar, Lake Elsinore, and Menifee. With us, you’re not just a client but a valued neighbor, benefitting from hands-on service and tailored security solutions. Experience the First Alert Pro difference with A-Bell Alarms.

Secure Your Peace of Mind with A-Bell Alarms

With over 50 years of experience, we’re Temecula Valley’s trusted local security partner.

Ready to experience the A-Bell Alarms difference?

Secure Your Peace of Mind with A-Bell Alarms

With over 50 years of experience, we’re Temecula Valley’s trusted local security partner.

Ready to experience the A-Bell Alarms difference?

Secure Your Peace of Mind with A-Bell Alarms

With over 50 years of experience, we’re Temecula Valley’s trusted local security partner.

Ready to experience the A-Bell Alarms difference?

Ready to experience the A-Bell Alarms difference?