J&M Security LLC

J&M Security LLC Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from J&M Security LLC, Locksmith, Windham, NH.

🔒 Home, Commercial, and DoD Locksmith Services
🔒 Access Control Systems
🔒 CCTV Surveillance
🔒 Intercom Systems
🔒 Burglar Alarms

Secure your property with J&M Security

Only certified Dealer, Installer, and Service Tech in NH for ossi-usa.com

07/29/2026

Hello All,
Business is pushing in a real positive direction. Commercial Fire Alarm along with Residential and Commercial Burg is in full swing.

Call for an estimate on ANY type of system takeover, new installations and service of any type.

Thank you all who have entrusted me with your security needs! You all ROCK!!

04/13/2026

Watch, follow, and discover more trending content.

Fire Alarm System replacement. Nashua NHFireLite ES Series with isolated input modules
03/30/2026

Fire Alarm System replacement. Nashua NH
FireLite ES Series with isolated input modules

We got a little Elevated yesterday…. Installs are year round. Not just when the weather is nice.
01/20/2026

We got a little Elevated yesterday…. Installs are year round. Not just when the weather is nice.

Some recent work. OSSI-USA access control system
12/19/2025

Some recent work. OSSI-USA access control system

12/16/2025

Great News! We are now BBB accredited. Great services rely on great resources!

Address

Windham, NH
03087

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