Their team were very responsible and did an amazing job with the repairs. I appreciate their crew excellent craftsmanship and professionalism throughout the entire process.

Worked in our office. Did such a good job that when they were done I hired them again for my home. Installed intercom and cameras. Both jobs were done on the most professional way.

The best in the Island. I contacted Long Island Security Systems after they did a good job at my sister’s home. I ended up having the same great experience using them to upgrade my alarm system. My old company wanted to charge over $3K for a few simple upgrades. Long Island Security Systems replaced my old system, and added extra features for far less. Plus, Lance was very knowledgeable about everything concerning alarms systems. There was no salesman to talk to. He had everything he needed on t