Commercial and industrial doors are some of the hardest working pieces of equipment in a building. In warehouses, factories, retail stores and distribution centres they may open and close hundreds of times each day.
Over time this constant use creates wear on moving parts, tracks, motors and safety systems. Without proper maintenance, small issues can quickly develop into larger problems that disrupt operations, create safety risks and lead to costly repairs.
While regular professional servicing is essential, there are also simple steps businesses can take to keep their doors operating reliably between inspections.
Here are ten practical tips to help maintain your commercial doors.
1. Carry out regular visual inspections
A quick visual inspection can help detect problems early before they become serious.
Look for signs such as:
loose bolts or fittings
damaged door panels
bent tracks
worn rollers or cables
dents caused by vehicle or forklift impact
Identifying issues early helps avoid unexpected breakdowns and reduces repair costs.
2. Listen for unusual noises
Commercial doors should operate smoothly and consistently. If you begin to hear squeaking, grinding, scraping or banging noises, it may indicate a problem.
These sounds can be caused by worn rollers, misalignment, loose hardware or lack of lubrication. Investigating unusual sounds early can prevent further damage to the door system.
3. Keep door tracks clean
Tracks often collect dust, stones, packaging debris and other materials, particularly in warehouse environments.
Dirty or blocked tracks can cause doors to jam or move unevenly. Regular cleaning helps maintain smooth operation and reduces unnecessary strain on the door mechanism.
4. Lubricate moving parts
Many commercial doors contain components that benefit from occasional lubrication, including hinges, rollers, bearings and pulleys.
Proper lubrication reduces friction and wear and helps doors move more smoothly. Avoid excessive lubrication as this can attract dust and debris.
5. Tighten loose hardware
Commercial doors experience significant vibration and movement during daily use. Over time, screws, hinges and other hardware can become loose.
Periodically inspect and tighten hardware such as:
hinges
handles
closers
mounting brackets
locking mechanisms
This simple step can significantly extend the lifespan of the door.
6. Check door alignment
If a door begins rubbing against tracks or fails to close evenly, it may be misaligned.
Misalignment can increase wear on rollers and motors and lead to premature failure if left unresolved. Doors that appear uneven or difficult to close should be inspected by a professional technician.
7. Inspect seals and weather protection
Weather seals play an important role in maintaining building efficiency and protecting internal spaces from dust, moisture and temperature changes.
Worn or damaged seals can allow water, dirt or cold air into the building. This is particularly important for warehouses, food facilities and temperature controlled environments.
Replacing worn seals can improve both energy efficiency and door performance.
8. Test safety sensors and controls
Automatic and access controlled doors rely on safety systems such as sensors, activation devices and emergency stops.
These systems should be tested regularly to ensure they respond correctly and stop the door when an obstruction is detected. Safety systems are essential for protecting staff, customers and visitors.
Regular checks also help ensure compliance with safety requirements.
9. Keep the doorway clear
One of the most common causes of commercial door damage is accidental impact.
Forklifts, vehicles, pallets and stored goods can easily strike doors when access areas become crowded. Keeping entrances clear and encouraging careful operation around doorways can prevent unnecessary damage.
10. Schedule regular professional servicing
While in house checks are valuable, professional servicing remains the most effective way to maintain commercial doors.
A professional maintenance programme helps to:
identify potential issues before they cause failure
extend the operational life of your doors
ensure safety systems are functioning correctly
reduce the risk of unexpected downtime
Professional servicing also includes detailed inspections of moving parts, structural components and safety systems.
Technicians can identify performance issues and provide reports that help building owners plan future repairs or replacements before major failures occur.
Keep your doors working reliably
Commercial doors play a critical role in the safety, security and efficiency of your building. With frequent daily use, regular maintenance is essential to keep them operating reliably.
By combining simple in-house checks with professional servicing, businesses can reduce breakdowns, extend the life of their doors and keep their operations running smoothly.
Duffett has more than 90 years of experience designing, installing and maintaining retail, commercial and industrial doors across New Zealand. Our trained technicians can service doors of all types and brands, helping ensure they continue to perform safely and efficiently.
If you would like expert support maintaining your doors, contact Duffett to discuss a servicing programme tailored to your facility.

