4.3 
178 *The Angi rating for Home Security System Service companies in Delaware, OH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Home Security System Service needs.
*The HomeAdvisor rating for Home Security System Service companies in Delaware, OH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Home Security System Service needs.
Last update on May 22, 2026
Serving Delaware, OH and surrounding areas
Approved (Corporate)
In business since 2010
Free estimates
Emergency services offered
"SafeStreets security system is incredibly reliable and easy to use. The app is intuitive, and the home automation features are a game-changer. I love being able to monitor my home from anywhere. Great service all around."
+1
Serving Delaware, OH and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1874
Free estimates
Emergency services offered
"ADT has exceeded my expectations! The system is reliable, the app is easy to use, and the customer service team is always helpful. I appreciate the environmental monitoring features, which go beyond just security. Knowing my home is protected 24/7 is priceless. I highly recommend ADT to anyone looking for a trustworthy security provider."
+35
Serving Delaware, OH and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
Serving Delaware, OH and surrounding areas
Approved
In business since 1950
Free estimates
Warranties offered
Trusted smart home security and small business security, Guardian Protection is the nation's largest privately-held security company helping to protect more than a quarter-million customers. Guardian Protection is a company dedicated to life safety and monitoring of property. We provide an extensive array of security and monitoring services to more than a quarter-million residential and commercial customers. Guardian is the nation's largest privately-held security company, but we weren't always that way. We do business today with the same integrity, attention to detail and commitment to customer service that was present when the company was founded back in 1950. We're a security company you can depend on. Call today for a FREE quote or in home security assessment.
+1
Serving Delaware, OH and surrounding areas
Approved
In business since 2004
Emergency services offered
Warranties offered
"Terry came by and got the work done. I'm very happy with the experience, it was fast and easy. And no one else could service my phone system before we found Terry. Thanks!"
+43
Serving Delaware, OH and surrounding areas
Approved
In business since 2016
Free estimates
Small jobs welcome
Centurion was founded in 2016. As a young company, we maintain traditional values: honesty, integrity, and service. We want to help you protect the things that you love the most whether that's your family, your home, or your business. Give us a call, we'd love to work with you.
Serving Delaware, OH and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"Hired Sean to take care of cameras, doorbell, thermostat, tv mounting and other electric work inside the house. Great professional, knowledgeable. Will accommodate your requests. Will call him for sure for any upcoming projects"
Serving Delaware, OH and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"The gentlemen from Simon Integration was professional and prompt. He installed my security camera with ease and recommended the ideal position to install my security camera. I have already recommended Simon Integration to friends."
+3
Serving Delaware, OH and surrounding areas
Approved
In business since 2005
Free estimates
Small jobs welcome
"SERVICE TECHS WERE VERY RESPECTFUL OF MY HOME"
Serving Delaware, OH and surrounding areas
Approved (Corporate)
In business since 1966
Free estimates
Credit card accepted
Thinking about adding new tech or appliances? Get a free In-Home Consultation from Best Buy. A Best Buy, In-Home Advisor can visit your home, show you what is possible, and create a customized plan. Best Buy, works hard every day to enrich the lives of consumers through technology, whether you come to us online, visit our stores or invite us into your homes. We do this by solving technology problems and addressing key human needs across a range of areas, including entertainment, productivity, communication, food, security and health. Call today! \n\n
+5
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