Garage Door Spring Repair Service
Broken garage door spring
Replaced door spring
How to Replace a Garage Door Spring
The garage door spring is the most important component of your door system. A wound torsion spring stores tremendous force to balance the weight of your garage door. Through the shaft, drums, cables, and brackets, this force makes it possible to lift and lower the door smoothly.
When the spring is properly adjusted, it offsets the heavy weight of the door, allowing easy operation. But when the spring breaks, no lifting force exists—your garage door becomes heavy, difficult, and dangerous to open.
Safety First
Warning: Replacing garage door springs is extremely dangerous due to the high tension involved. Do not attempt repairs unless you have the proper tools, experience, and safety equipment.
Steps for Replacing a Broken Garage Door Spring
If you are experienced and equipped with the right tools, here’s a simplified guide:
Wear protection – Use safety goggles and gloves at all times.
Close the garage door – Ensure it’s fully shut and resting on the ground.
Release spring tension – Use professional winding bars (never screwdrivers) to safely unwind remaining spring tension.
Remove hardware – Unscrew spring drums and release bearing plates.
Take out the torsion shaft – Remove the shaft and slide out the broken spring.
Measure the broken spring – Note the diameter, thickness, length, and winding direction.
Purchase a replacement spring – Get one that matches the exact specifications.
Reassemble components – Install the new spring, drums, and bearing plates back on the shaft.
Tighten hardware – Secure all screws and nuts to the tracks and brackets.
Secure cables – Lock the shaft with pliers, then tighten both cables.
Wind the new spring – Use winding bars to safely add tension.
Test door balance – Release pliers and check door balance. Adjust spring tension as needed.
Congratulations! Your garage door spring replacement is complete.
Professional Garage Door Spring Replacement
If you are unsure or don’t feel confident handling high-tension springs, it’s best to call a professional. Attempting DIY repair without proper tools and training can cause serious injury.
At JT Garage Door, we specialize in broken garage door spring replacement and repair. Our expert technicians respond quickly, use quality replacement parts, and ensure your door operates safely and smoothly.
Need expert garage door spring repair in Mississauga, Oakville, Brampton, Milton, Etobicoke, or the GTA? Call us today at 416-887-0248 or fill out our Contact Form here. We’re always happy to help.