If you’ve ever walked through a door that slowly and smoothly closes behind you, without slamming, you’ve experienced a properly working door closer in action. Door closers are one of the most important (and most overlooked) components of commercial door security and safety. Let’s dive into what a door closer is, why businesses need them, the three main types of door closers, and how Harry’s can help you.
What Is a Door Closer?
A door closer is a mechanical device that automatically closes a door after it has been opened. Most door closers use hydraulic pressure and spring tension to control the speed and force of the door closing.
Frequently Asked Questions About Door Closers
1. What is the purpose of a door closer?
To automatically close a door safely and securely after it is opened
2. Are door closers required?
In many commercial and fire-rated openings, they’re required to meet ADA, fire and life safety codes.
3. How long do closers last?
Depends on usage, quality and maintenance. (Ex. Grade 1 heavy-duty door closers are rated for millions of cycles.)
4. Can a door closer be adjusted?
Yes, most have adjustable valves for speed and force
5. What is the difference between latch speed and closing speed?
Closing Speed: Controls the main swing of the door
Latch Speed: Controls the final few inches before the door fully closes and latches
The 3 Main Types of Door Closers
Surface-Mounted Door Closers (Most Common)
Surface-mounted door closers are the go-to solution for busy commercial spaces, and a great option for retrofit applications.
Easy to install & adjust
Built to handle high traffic
Cost-effective without sacrificing quality
Keeps doors closing safely & consistently
Concealed Closers
Concealed door closers deliver a clean, modern look without sacrificing functionality. Perfect for glass storefronts and architectural spaces where design matters just as much as performance.
Completely hidden installation
Sleek, high-end appearance
Tamper-resistant for added security
Smooth, controlled closing every time
Overhead (High-Traffic • Architectural Performance)
Installed within the header or frame, overhead concealed closers deliver reliable, controlled operation without visible hardware. They’re a strong choice for entrances that need consistent performance with a refined, minimal look.
Floor Closers (Heavy-Duty • High Traffic)
Floor closers are built for maximum durability and strength, making them ideal for heavy or frequently used doors. Designed for demanding commercial entrances, they provide dependable performance where stability and long-term reliability are essential.
Common Door Closer Problems
(AND WHAT THEY MEAN)
Why is my door slamming?
Closing Speed Set Too Fast
The door is closing too quickly
Hydraulic Fluid Issue
Low or leaking fluid causes uncontrolled door movement
Why is my door slamming?
Latch Speed Not Adjusted Correctly
Latch speed too slow → door doesn’t fully close
Closer May be Too Weak
Not enough force to fully close and latch the door, door may be too heavy, or air pressure in building is too strong
Why is my door slamming?
Spring Tension Too High
The closer is set with too much force
Not ADA Compliant
Requires too much force to open & may not meet ADA standards
A properly adjusted door closer keeps doors safe, secure & easy to use.
Need help? Contact Harry’s Locksmith for expert door closeradjustments and solutions.