Custom Arched Aluminum Security Door Installation in Brooklyn, NY

Quick Answer: Parker Custom Security recently completed a custom aluminum security door installation for a multi-tenant building in Brooklyn, NY. The project included heavy-duty aluminum framed doors, reinforced security hardware, and a custom arched transom system designed to match the building's original architecture while improving security and durability.

Many older apartment buildings throughout Brooklyn were built with beautiful architectural details that make modern security upgrades genuinely challenging. Standard commercial storefront systems are designed for square or rectangular openings — they don't account for the ornate arched entryways common in pre-war Brooklyn buildings. When a property manager needs to improve entry security without destroying the character of the building, the solution has to be custom.

This is exactly the situation Parker Custom Security was called in to handle. A multi-tenant apartment building in Brooklyn required a complete entry system replacement: new aluminum doors, reinforced security hardware, and a custom arched transom system — all engineered to fit a large, architecturally significant arched opening that no standard door system could accommodate.

The Challenge: A Custom Arched Entryway in a Pre-War Brooklyn Building

Pre-war apartment buildings across Brooklyn are full of architectural details that made them landmarks of their era — arched entryways, decorative stonework, ornamental facades. They're also full of security challenges that the original builders never anticipated.

This building's main entry was a wide, arched opening with significant height and a full curved transom above the door plane. The existing entry system had reached the end of its useful life. Hardware was failing, the door frames were compromised, and the building's tenants were experiencing both security and weather infiltration problems.

The property manager needed:

• A complete replacement of the entry system
• Custom fabrication to match the arched opening
• Heavy-duty commercial-grade security hardware
• A system built for high daily traffic in a multi-tenant building
• A finished result that respected the building's original architectural character

A standard aluminum storefront door system wouldn't work here. The opening required custom fabrication from the ground up.

Heavy-Duty Aluminum Doors Built for NYC Buildings

The replacement system specified for this project was built around commercial-grade aluminum framing — chosen for its strength, corrosion resistance, and long-term durability in New York City's climate.

Aluminum is the right material for multi-tenant building entry systems for several reasons. It doesn't rust, it holds up to the daily punishment of high foot traffic, it performs in freeze-thaw cycles and coastal humidity, and it's compatible with the access control and intercom systems that most NYC apartment buildings rely on. Unlike hollow metal or wood-framed entries, a properly specified aluminum system can last decades with minimal maintenance.

For this installation, the entry system included:

• Commercial aluminum framing — built to handle continuous use in a multi-tenant residential building
• Reinforced lock hardware — commercial-grade deadbolts and strike plates with proper security ratings
• Heavy-duty door closers — ensuring controlled, secure closure on every cycle
• Sidelight panels — flanking the main door panels within the framed system
• Security camera and intercom rough-in — the completed system includes a camera and intercom panel integrated directly into the finished entry

Every component was selected for durability and long-term performance, not just appearance.

Matching the Original Architecture

This is where the project gets technically interesting. The building's arched opening is substantial — a full semicircular arch rising well above the door panels themselves. The transom space between the top of the door frames and the apex of the arch had to be treated as part of the system, not left open or covered with a flat panel.

The solution was a custom-fabricated arched aluminum transom that follows the curve of the existing masonry arch exactly. The framing was bent and fitted on-site to conform to the opening, creating a continuous black aluminum border that outlines the full arch from the ground up.

The result is an entry system that reads as intentional and architectural. The black aluminum framing against the building's cream-colored masonry creates clean visual contrast. Natural light still passes through the transom glazing. The building's character is preserved.

This kind of outcome requires field measurement, custom fabrication, and experienced installation. It cannot be achieved with catalog products.

Security Upgrades for Multi-Tenant Buildings

A new entry system does more than replace a failing door. For multi-tenant apartment buildings, a proper commercial entry upgrade is a security infrastructure improvement.

The completed system at this Brooklyn building provides:

• Controlled single point of entry — all tenant and visitor traffic funneled through a properly secured vestibule
• Compatible hardware for future access control — the system is ready for keypad, card reader, or fob access integration
• Intercom panel integration — tenant intercom installed directly in the sidelight framing
• Security camera coverage — a camera is mounted within the arch at the entry, providing full visibility of the entry point
• Durable closers and latching hardware — preventing the propped-door security failures common in older, deteriorating entry systems

Property managers who upgrade aging entry systems typically see immediate improvements in tenant feedback around security — and measurable reductions in the maintenance calls that come with failing door hardware.

The Installation: A Real Brooklyn Project

The Parker Custom Security crew completed this installation over the course of the project day, working in an occupied building with active tenant traffic. The photos document the process from initial removal through finished installation.

Why NYC Property Managers Upgrade Entry Systems

Entry door replacement is one of the most common commercial security projects Parker Custom Security handles throughout New York City — and the reasons property managers initiate these projects are consistent:

• Aging hardware that fails repeatedly and becomes a maintenance burden
• Tenant complaints about drafts, security concerns, and door malfunctions
• Deteriorating frames that can no longer hold proper lock alignment
• Break-in attempts that have compromised existing hardware
• Lease renewal pressure from tenants who expect functional, secure building entry
• Insurance requirements that mandate functional, compliant entry systems
• Planned access control upgrades that require a compatible door system as a foundation

In most cases, continued repair of a failing system costs more over time than replacement. A properly installed commercial aluminum entry system, when correctly specified and installed, requires minimal maintenance for years.

Upgrade Your Building Entry System

If your apartment building, commercial property, or mixed-use building needs a custom security door installation, Parker Custom Security can help. From custom aluminum entry systems to reinforced commercial doors and security hardware, the team works with property managers and building owners throughout NYC, Brooklyn, Westchester, and Northern New Jersey.

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Frequently Asked Questions

How long do aluminum security doors last?

Commercial aluminum entry systems can last decades when properly installed and maintained. The material is corrosion-resistant, structurally stable, and holds up to the demands of high-traffic multi-tenant buildings in New York City's climate.

Can custom aluminum doors be made to fit arched openings?

Yes. Custom fabricated aluminum framing systems can be designed and bent to fit arched and non-standard architectural openings. This is a specialty application that requires field measurement, fabrication, and experienced installation — but it is a straightforward scope for a qualified commercial door contractor.

Are aluminum security doors good for apartment buildings?

Yes. Aluminum doors are the standard specification for multi-tenant residential buildings because they are durable, weather-resistant, low-maintenance, and compatible with intercom and access control systems. They outperform hollow metal and wood-framed alternatives in long-term cost and performance.

Can access control systems be added later?

Yes. Most commercial aluminum door systems can be integrated with intercoms, keypads, card readers, fob access, and other security systems after initial installation. The hardware prep for these integrations is typically built into the original installation.

Does Parker Custom Security work on occupied buildings?

Yes. The company regularly performs installations and upgrades in occupied apartment buildings and commercial properties throughout NYC. Projects are coordinated to minimize disruption to tenants and building operations.

Parker Custom Security serves property managers, building owners, and commercial clients throughout New York City, Brooklyn, Westchester, and Northern New Jersey. Services include commercial aluminum door installation, security hardware, access control systems, intercom installation, and door repair.