Troubleshooting Common Issues with Commercial Doors

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Commercial doors play a critical role in businesses, providing security, accessibility, and even contributing to energy efficiency. However, they’re not immune to wear and tear, and problems can arise over time. Whether you manage a retail store, office building, or industrial facility, understanding how to troubleshoot common door issues can save you time and prevent costly disruptions. Here are some common issues and practical tips to resolve them.

Automatic Door Problems

uneven commercial overhead door that won't close all the way

Automatic doors are a convenient feature for businesses, but they can encounter issues like sticking, slow operation, or failure to open altogether.

Issue: Door Won’t Open or Close

First, check the power source. Ensure the door is plugged in and receiving electricity. If the door still doesn’t work, examine the sensor for dirt or debris that may be blocking it. Clean the sensor with a soft cloth and test the door again.

Issue: Door Operates Slowly

This is often caused by misaligned tracks or worn-out rollers. Inspect the tracks for debris or damage and remove any obstructions. If the rollers appear worn or damaged, contact a professional for replacement.

Tip: Regularly clean sensors, tracks, and moving parts to avoid operational issues.

Hollow Metal Doors

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Hollow metal doors are popular for their durability and security, but they can develop problems over time.

Issue: Door Doesn’t Latch Properly

Misaligned hinges or a damaged latch can cause this problem. Check if the door is sagging by observing if it aligns with the frame when closed. Tighten any loose hinges and adjust the strike plate if needed.

Issue: Rust or Corrosion

Rust can compromise the door’s structural integrity. If you notice rust, sand it down and apply a rust-inhibiting primer and paint. For severe corrosion, consider replacing the door.

Tip: Schedule routine inspections to identify and address rust early.

Glass Doors

Glass doors provide a modern and professional aesthetic, but they’re prone to unique issues.

Issue: Cracks or Chips

Cracks in glass doors aren’t just unsightly—they’re a safety risk. Small chips can sometimes be repaired with a resin-based solution, but larger cracks often require replacing the glass.

Issue: Door Sticking or Dragging

Check the bottom of the door for debris or damage. Clean the threshold and inspect the door closer for leaks or malfunctions. Adjusting the closer or replacing worn seals can resolve the issue.

Tip: Use tempered or safety glass to reduce the risk of injury if the door breaks.

Fire Doors

Fire-rated doors are essential for safety and compliance, but they require proper maintenance to perform their function.

Issue: Difficulty Closing or Opening

Fire doors must self-close and latch completely to meet regulations. If the door isn’t functioning properly, check the hinges, door closer, and latching mechanism for damage or misalignment.

Issue: Damaged Intumescent Seals

Inspect the seals for wear or gaps. These seals expand during a fire to block smoke and flames. Replace damaged seals immediately.

Tip: Schedule regular inspections to ensure fire doors meet code requirements and perform as designed in emergencies.

When to Call a Professional

While minor issues can often be addressed with routine maintenance, some problems require the expertise of a professional. Attempting complex repairs on your own can worsen the issue or void your warranty.

Contact Union Door for Expert Commercial Door Services

If you manage a commercial property in the Bay Area, or you’re dealing with a sticking automatic door, a rusting metal door, or a misaligned glass door, Union Door is here to help. We specialize in repairing, maintaining, and installing all types of commercial doors for businesses across the San Francisco area. Don’t let door problems slow you down—contact us today to schedule service and keep your business running smoothly!

January 23, 2025