This place does not get enough credit. They are hands down the best service shop for your vehicle. Ive been to numerous shops for vehicle upgrades and I have never received such proper customer service, care, and at an unbeatable price. They recently did my Katzkins interior upholstery for both my front and back seats and they came out phenomenal. Brian was extremely helpful, and I apologize but I dont remember the females name at the front; Nonetheless she was as helpful as can be. They do not rip you off, they treat you like a human, and respect is a two way street that they recognize instantly before you even walk through the door. I have included some images of the upholstery they did, incredible work. I am returning next week for more work, I will definitely update with more pictures and Im sure another fantastic review.

I had a great experience getting my Katzkin seats done at GLM Security!! They were reupholstered perfectly, I love them so much. Drop off and pickup was seamless. I highly recommend this place.

I had a leather interior upgrade done on my vehicle the quality and service was more than expected i would recommend this shop hands down to anyone !!

Outstanding work Brian. I couldn’t be happier with my new system install and back up camera. The whole process was quick, transparent, and you created trust. Anytime I need work done on the car I know who to go to (for the direct work, or as a resource)!

I came here because blackboxmycar.com referred me to them to install my new front & rear dash cam. Exceptional service here, professional job, and very kind and patient with you. I forgot who the name of the guy that served me he was great but I’m sure whoever you’ll get here is great. They also took their time after installation to teach me how to use the app and set everything to my preferences!

Excellent service from Brian and co, they did a fantastic job with my head unit and backup camera install. Would definitely recommend!!!!

Words alone couldnt do GLM justice! Brian and his team are awesome!!! Top tier work, great prices and a friendly atmosphere is what you can expect at GLM.

Had my daughters 98 Avalon hooked up with an alarm that included remote start, replacing an old system in the car that didnt work, and they did an excellent job. Friendly staff and would highly recommend their services.

Great service, combined with a professional attitude, made this custom automobile facility the place to go. The options are plenty and the installation of my leather seats, along with my floorboard lights, were flawless.

I would recommend this business to anyone. I drove 1 1/2 hours to have my upholstery done. Brian and his staff are nothing short of amazing. My car came out absolutely beautiful. I am a 100% satisfied customer.

Brian is a very good man & the guys over there knows what they doing. They have done an excellent job for my leather interior. I will Highly recommend this place.

Very polite, nice service.

Such a wonderful experience! Brian and GLM installed a rear Dashcam into my Toyota RAV4. It was a perfect job. Brian was courteous and professional and answered all of my questions. It was worth the trip from Flushing to Lynbrook! Highly recommended!

I just visited this business today to install a Red Alert safety system in my husbands 2016 Subaru Legacy. Every employee was very friendly and professional. The place felt very modern and made me feel good to walk in there. One employee even showed me how to view the dash cam videos from my Thinkware F770 dash cam on my smart phone. Overall wonderful experience! Highly recommended for anyone who is conscious about safety and security.

Thanks for the great services. Nice and friendly employees.. they set up my remote start and they did it quick. Thanks 👍👍👍

I have always wanted to have leather seats in my car and THANK YOU VERY MUCH, GLM!!! for making my wish fulfilled. Brian T. was a very passionate, down to earth gentleman who took time to explain all the details about the installation process, what to expect and the post-installation care for my new 2016 ford fusion SE leather interior. A big thanks to Katzkin for their quality and craftsmanship that feels better than the factory leather. The staff at GLM has done a wonderful job after which I can highly recommend any New Yorkers to have Katzkin leather interior installed by highly experienced professionals @GLM Security and Sound.

Amazing!!! I love love love the new leather interior! Its perfect :-D Thanks

On August 5th, 2019 I visited this business to get a high-tech dash cam video camera, a back-up camera, and the Red Alert rear-end crash deterrent system professionally installed in my car. All the work was completed in less than 3 hours. The place was very clean and comfortable, and provided me with Wi-Fi access so that I could work on my laptop as I waited. This business did not try to sell me anything that I didnt need, and everything was clearly explained to me. The owner showed me how to view my dash cam videos on my smart phone, and explained to me how all the features work. I wish I had known about this place many years ago.On August 14th GLM Security and Sound modified the Thinkware dash cam in my newer car to continue recording even after I turn the car off. The BlackVue dash cam that they installed in my older car also has this functionality.On August 20th my wife returned to GLM Security and Sound with my older car to install a larger capacity internal memory card and a tamper proof case for my dash cam, a backup sensor system, and a GPS tracking system. All the work was completed in under 3 hours. Now my dash cam should be able to store a lot more footage internally, and I dont have to worry about someone messing around with it. The backup sensor system should easily pay for itself if one parking lot incident is avoided. The GPS tracking system provides an obvious security benefit in preventing vehicle theft, in addition to serving the safety function of allowing first responders to locate the vehicle quickly and render emergency medical assistance, if necessary.I now feel a lot less anxiety than I used to after experiencing numerous frightening incidents involving cars. I would refer anyone to this business to protect themselves and their families against threats of many sorts, with competitive pricing and service that goes above and beyond.I was recently advised by Black Box My Car, the largest dash cam retailer in North America, that GLM Security and Sound is one of the dash cam installers in the New York area that they recommend to their customers.

Great service

Nice products and very friendly atmosphere

Great place

It gives me lime to the heart