Since 1947, Capitol Fireproof Door has been manufacturing and installing the highest quality fireproof doors, frames, and kalamein lot-line fireproof windows. Family owned and operated for three generations, Capitol Fireproof Door provides free estimates and site surveys.  We offer custom solutions and designs to meet fire code and safety requirements, while maintaining the integrity of your building’s architecture. We provide solutions for fire code violations.





1-Capitol_Fireproof Door_Hollow Metal Exit Door with Continuous Hinge
2-Capitol_Fireproof_Door Aluminum Door and Frame Duronotic Half Glass
3-Capitol_Fireproof_Door Aluminum Entrance Door Pair
4-Capitol_Fireproof_Door Aluminum Entrance Door with Arched Transom – Newark
5-Capitol_Fireproof_Door Aluminum Inner Vestibule Door with Attached Sidelights
6-Capitol_Fireproof_Door Aluminum Vestibule Door
7-Capitol_Fireproof_Door Auth Chime_Viewer Hardware
8-Capitol_Fireproof_Door Building Entrance Door
9-Capitol_Fireproof_Door Detex Alarm Panic Lock Hardware
10-Capitol_Fireproof_Door Fire Code Violation Removal
11-Capitol_Fireproof_Door Fire Rated Birch Door with two Locks
12-Capitol_Fireproof_Door Hollow Metal Flush Door Installed
13-Capitol_Fireproof_Door Hollow Metal School Entrance Doors with Side Vision
14-Capitol_Fireproof_Door Kalamein 5-panel door unprimed door
15-Capitol_Fireproof_Door Kalamein Door Refinished
16-Capitol_Fireproof_Door Kalamein Door with Frame and Top and Bottom Louvers
17-Capitol_Fireproof_Door Kalamein Door with Mail Slot Hardware
18-Capitol_Fireproof_Door Kalamein Door with Side Vision Glass and Mortise Lock
19-Capitol_Fireproof_Door Kalamein Door with Side Vision
20-Capitol_Fireproof_Door Kalamein Exit Door with Closer
21-Capitol_Fireproof_Door Kalamein Flush Apartment Door with Angle Iron Inside View
22-Capitol_Fireproof_Door Kalamein Oversized Exit Door with Side Vision Glass
23-Capitol_Fireproof_Door Kalamein Pair of Exit Doors with Vertical Panic and Side Vision Glass
24-Capitol_Fireproof_Door Kalamein Panel Apartment Door copy
25-Capitol_Fireproof_Door Kalamein Panel Apartment Door
26-Capitol_Fireproof_Door Kalamein Recessed Apartment Door with Angle Frame and Dead Bolt
27-Capitol_Fireproof_Door Kalamein Recessed Panel Door with Angle Frame
28-Capitol_Fireproof_Door Kalamein Roof Door with New Welded Masonry Frame
29-Capitol_Fireproof_Door Kalamein Two Seam Door Refinished
30-Capitol_Fireproof_Door Kalamein Two Seam Door
31-Capitol_Fireproof_Door New Door and Frame Installation – Wood Forms Attached
32-Capitol_Fireproof_Door Retro-fitting door into existing frame
33-Capitol_Fireproof_Door Stainless Steel Pull Handles Hardware
34-Capitol_Fireproof_Door Steel Kickplate Hardware
35-Capitol_Fireproof_Door Three Panel Wood Veneer Door
36-Capitol_Fireproof_Door Wood Half Door
37-Capitol_Fireproof_Door Wood Veneer Door
39-Capitol_Fireproof_Door_Hollow Metal Six Panel Door Pair
40-Capitol_Fireproof_Door_Kalamein Apartment Door with Mortise Lock and Chrome Lever Handle
41-Capitol_Fireproof_Door_Kalamein Door and Masonary Frame with Full Wire Glass
42-Capitol_Fireproof_Door_Kalamein Double Egress Vision Light Push Pull Door
43-Capitol_Fireproof_Door_Kalamein Flush Apartment Door with Angle Iron Frame
44-Capitol_Fireproof_Door_Kalamein Terrace Door with Full Glass
45-Capitol_Fireproof_Door_Pair of Fire Exit Doors with Vertical Exit Device
46-Capitol_Fireproof_Door_Recessed Panel Kalamein Door with Angle Iron Frame with Closer
47-Capitol_Fireproof_Door_Vertical Panic Top Rod Hardware




Serving the New York Metropolitan and surrounding areas since 1947, our team at Capitol Fireproof Door/Mercury Lock & Door Service prides itself in exceeding the expectations of our customers. We can manufacture and install fireproof doors and windows for all types of businesses and residences including apartment buildings, office buildings, nursing homes, hospitals, senior housing, hotels, schools, churches, corporations, private residences, factories, medical labs and government and public institutions.

Capitol Fireproof Door proudly serves all 5 boroughs of New York City: Manhattan, the Bronx, Staten Island, Queens and Brooklyn. We also serve Westchester, Long Island, Nassau County, Suffolk County, Rockland County, Orange County and Putnam County in New York, as well as Bergen, Passaic, Essex and Hudson counties in New Jersey.


“You guys are true professionals. You’re really great to work with!”

M. Milstein
M. MilsteinNew York, NY

After numerous attempts and many hours searching the Internet to find a reliable, honest and reputable door company, I discovered Capitol Fireproof Door and had the pleasure of speaking to the owner, Howard.

We ordered two custom-made Kalamein doors. These were produced with quality craftsmanship in a very timely manner. This company is truly an oasis in the desert!  Attached to this email is a picture of one of the doors installed. We will definitely be using Capitol in the near future as we only use top of the line products in our company.

D. Panza
D. PanzaScotch Plains, NJ

Dear Howard:

I want to thank you for your patience and the several phone calls you made to get the measurements right. I wasn’t able to install the doorframe until just before the Holidays, but it was a damn near perfect fit.

I’ve already told the story to the local building supply company which had previously satisfied all my DIY needs for 31 years, and left them one of your business cards. I will send another to the other supplier that tried to help me with this project.

A.G. Newman
A.G. NewmanVerona, NJ

Hi Howard:

The door looks great. It looks so good in fact that we may leave it as is and not paint it. I have only compliments for the look and quality of the door and how it fits and closes.

M. Brahms
M. BrahmsHarrison, NY

I am a resident of Tiffany House in Cedarhurst, NJ. Today I had my front door of my apartment replaced by your company. I want to tell you that the two fellows that installed it did an excellent job. I do recommend you very highly for the excellent job done. Thanks.

T. Intrator
T. IntratorCedarhurst, NY

Hi Howard:

I have just joined Benchmark Property Management and thought I should send you this welcome note. The doors at Brooklands look great! I trust all is well and look forward to working with you.

Benchmark Property ManagementMamaroneck, NY

Dear Howard,

Just wanted to let you know that the “continuous hinge” repair your guys made on our entry door is fabulous! They did a quiet and efficient job of it. It blends right in with the door color and propped the door back up so it can close properly again. You saved us buying a whole new door.

Also, when your crew got the hinge on and the door upright again, they discovered they did not have to replace the threshold as expected so they left the old one in place.

Thanks and than your crew for me.

A. Lynn
A. LynnNew York, NY

I can’t express in words how happy I am with the door, including the paint job (and I’m not just saying that because of my notarized letter). And your staff who installed the door were incredibly professional, friendly, and helpful.

Every person I dealt with at your company, have been great and I tremendously appreciate your work and would highly recommend you in the future.

A. Vent
A. VentBronx, NY


The new door looks nice in my lobby and the long window will make a difference. I had your installer take measurements for another door in the rear of the building.

V. Rapolla
V. RapollaCliffside Park, NJ

Howard, the door looks great; thanks for all your help!

G. DeamNew York, NY
Thanks for the prompt response. I continue to see why your company has been viable since 1949! Sincere customer service is always appreciated. Your guys surveyed the situation and indicated that they could remove the metal saddle and replace it with cement. The other option would be to chip off the remaining piece of concrete and for me to just paint the saddle when I paint the door. As the structural integrity of the door installation was not compromised and thus was not in question and it is more for aesthetics than anything else that I wanted it to be “made whole”, the painting solution is definitely a viable option so I opted for the latter. Once again thanks for your professionalism and to those on your team.
C.V. RogersNew York, NY
© Copyright - Capitol Fireproof Door