Alpha Locks replaced all the locks in our office building. They were punctual, professional, and their prices were very reasonable. Will definitely use them again for our other locations!
Service
Door Closers and Security Bars
Door closer and security bar installation in Westchester County. Improve safety, controlled closing, and after-hours protection for commercial doors.
- 24/7 emergency locksmith support
- Licensed and insured technicians
- Upfront pricing before any work begins

About this service
Door closers and security bars are essential components of commercial building safety — they control how doors close, stay latched, and resist unauthorized entry. Alpha Locks and Safe supplies and installs commercial-grade door closers and security bars across Westchester County for offices, retail stores, warehouses, schools, and healthcare facilities.
A properly adjusted door closer ensures the door shuts fully and latches every time, which is critical for fire safety, climate control, and security. We install surface-mounted, concealed, and overhead closers from trusted brands and adjust them to meet the specific needs of each door — including closing speed, latching speed, backcheck resistance, and delayed-action settings for ADA-compliant entrances.
Security bars — including crossbar devices, security gate arms, and reinforcing hardware — add a physical barrier against forced entry on vulnerable doors and storefronts. We help you choose the right device based on door type, threat level, and local code requirements. Installation includes mounting, alignment testing, and verification that the hardware functions smoothly while maintaining compliance with fire and accessibility codes.
What's included
- Door closer installation/adjustments
- Security bar options for after-hours
- Alignment and closing force tuning
- Recommendations for high-traffic doors
Why customers choose us
- Fast dispatch and honest time estimates
- Upfront pricing before any work begins
- Professional tools and careful work
- Help across Westchester County and nearby areas
Frequently Asked Questions
What is a commercial door closer and why do I need one?
A door closer is a hydraulic device mounted on or inside a door that ensures it shuts automatically and at a controlled speed. Commercial doors require closers for fire safety, ADA compliance, energy efficiency, and security.
How do I know if my door closer needs replacement?
Signs include the door slamming shut, closing too slowly, leaking hydraulic fluid, not latching properly, or requiring excessive force to open. We inspect and advise whether repair or replacement is the better option.
Do you install security bars and gates for storefronts?
Yes. We supply and install security bars, roll-down gates, and fixed window grilles for retail stores, warehouses, and commercial properties across Westchester County.
Can you adjust my door closer so it meets ADA requirements?
Absolutely. ADA requires doors to open with no more than 5 lbs of force and close at a controlled speed. We calibrate closers to meet these standards during every installation and service call.
How much do door closers and security bars cost?
Door closers and security bar installation starts at $1,349. The price varies based on door size, closer type (surface-mount vs. concealed), and the number of units. We provide an upfront quote.
Need Door Closers and Security Bars today?
Call +1 (929) 367-6689 for immediate help or request service online.
We called Alpha Locks for an emergency lockout at our store on a Sunday morning. They arrived fast and got us open without any damage. Highly recommend for any business.
Had them install a master key system for our office suite. Very organized, explained everything clearly, and the whole job was done in one visit. Great commercial locksmith.
Need help right now?
Call our 24/7 locksmith team at +1 (929) 367-6689 or request a service visit online.