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Sprint Security has been protecting homes and businesses since 1978. Founded by Greg Smizer, our commitment to providing personal safety and peace of mind for each of our valued clients remains paramount. The Sonos Wireless HiFi System delivers all the music on earth, in every room, with warm, full-bodied sound that's crystal clear at any volume. The Charlestown project wraps up.

Episode 8 included: restoring the exterior with a new dormer, windows, shutters and front entry; System Integrator Greg Smizer of Sprint Security Systems will be testing the security system and showing the new wireless music system; visiting the mechanical room in the basement; spotlighting the completed master suite.
Reviews (5)
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Ed L.
Apr 06, 2022
Greg and his staff installed our security system in our home back in 1987. With the exception of having to replace the battery backup perhaps five times during the past 30+ years, which is essentially maintenance, the system has been extremely reliable. No service calls have been necessary since the installation. Whenever I do have any questions about the system, Greg responds very quickly. It is nice to have this system in place particularly in this day and age. Ed L.
Natalie W.
Apr 17, 2020
Greg did an amazing job helping us fix our fire/alarm system. He was attentive, on time, helpful, and kind. I would recommend him to anyone in the area.
Da S.
Nov 11, 2019
Slow to respond to calls, have had them at house multiple times and still getting frequent false alarms, don't follow up on incomplete work (like getting my alarm system on line as promised months ago)
Thomas K.
Sep 17, 2016
I have used Greg and Sprint security for alarms in 2 commercial spaces as well as 2 residences. In addition I have recently had them install internet and audio visual gear in my house. Sprint Security is pretty much my dream contractor. Greg who runs the shop is as smart as they come, and is frankly just a joy to be around. On top of that his knowledge of the products is second to none. Lastly his workmanship is impeccable.

He just does not tolerate shoddy workmanship and it really shows. Everything he works on is installed just properly, every wire in its place everything that needs a label has one. All in all, they are the prefect combination, of friendly, smart, talented and meticulous contractors. Wish others could be half as good as they are.
Colin G.
Jul 16, 2015
Sprint Security is great. Greg and his team handle alarm monitoring/maintenance/repair services for the condo association (12 units), that I live in in Waltham. They are extremely prompt (more often than not even same-day service), and do a great job keeping our alarm system in good working order, and the building occupants safe.