Callahan Enterprises


What We Are We Working On



Current Projects

8/20/2016 - Department of Energy

* Convertoutbuildings to Natural Gas, convert two outbuildings from heating oil to natural gas remove underground tank.

8/11/2016 - Department of Energy

* outbuildings roof replacement, replace roof systems on three existing outbuildings.

6/24/2016 - Department of Energy

* install Ext mass notification speakers, Design/Build speaker system to the existing fire protection/sprinkler system.

4/06/2016 - National Science Foundation

* Expansion of the VoIP Pilot at NSF headquarters, Install and implement VoIP system.

3/18/2016 - Andrews Air Force Base

* Multi-Door Preventative maintenance Inspection and repairs of overhead doors, electronic doors, turnstile, gates.

Past Projects

07/18/2016 - 12/05/2016 - Department of Energy

* Replace standard sprinklers heads; remove and replace standard sprinkler heads at the basement level.

08/07/2015 - 03/10/2016 - Department of Energy

* fire suppression system; design and install new fire suppression system for auditorium

10/08/2015 - 10/23/2015 - USDA

* conference room renovation; renovate conference room to create two separate offices.

04/22/2013 - 03/31/2015 - Centers for Medicare and Medicaid

* carpet and Paint; carpet and paint RENOVATIONS, GSA

09/23/2013 - 02/25/2014 - Centers for Medicare and Medicaid

* assistive Technology Center, Audio Visual Phase II; update audio visual equipment.

09/21/2012 - 03/18/2014 - Centers for Medicare and Medicaid

 * CMS  Sound Shower; provide and install video distribution of events in the LCF through digital signage displays throughout the CMS buildings.

09/27/2012 - 03/18/2014 - Centers for Medicare and Medicaid

* Assistive Technology Center; Audio Visual Phase I; Install audio visual equipment with integration and user training.