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Our Story
JJM Construction began with a general contractor, Jim McGrath.
While working in the commercial construction industry, Jim found ways to expand his brand and began to sell access doors and other construction supplies.
He secured a patent on his design of the JJM Fire Rated Access Enclosures.
Each JJM Fire Rated Access Enclosure is designed and custom fabricated for each project, to be used mostly in Group 3 Hyro-Electric Elevator Hoistways to house smoke detectors/heat sensors.
We Sell Direct, Contact Us at:
jjmconstruction.net
(909)518-1804
Christina@jjmconstruction.net
Our Products:
• FIRE RATED ENCLOSURES - Protective Guards (cages)
* Access panels by others
Rated UL10-B Fire Doors for up to 1-1/2 hours for 2 hour fire barriers for vertical surfaces. All models feature a 2” thick insulated door, 20 gauge steel with continuous piano hinge, self closing slam latch with spring-assisted closer, self locking with a universal lock. and welded-on masonry anchors.
Frame & Trim: 16 gauge steel with a paint able 1” flange.
Door: 2” thick, insulated 20 gauge steel with continuous hinge, universal lock.
Finish: White powder coat is standard.
Option: Stainless steel - Satin finish.
Attached to the door is a Protective Guard (Cages) made from 16gauge Expanded Metal.
16gauge Steel Shelf not attached for the sensors that allow you to
hinge the door in any direction.
Other Options:
Such as special length and Gasketing
To fulfill the State Elevator Inspector and State Fire marshal requirements on your projects, JJM Construction provides an approved method for allowing smoke detectors and heat sensors
inside restricted areas while remaining serviceable from outside.such as:
• inside elevator hoist ways
• machine rooms
• and other restricted areas
What We Do
Commercial Experience
Regions & Counties Serviced
- California-Los Angeles and Vicinity
- Orange, Riverside and San Bernardino Counties
- San Francisco, Oakland, San Jose
- Georgia
- Arizona
- San Diego and Imperial Counties