Should You Replace Both Garage Door Springs if One Breaks?
If your garage door uses two springs and one breaks, Door Doctor replaces both springs to maintain equal tension and help the door lift evenly. Springs installed as a pair usually go through the same opening and closing cycles, so the remaining spring may have similar wear even if it has not broken yet. The new springs also need to be correctly matched to the weight and setup of the garage door.
Why Are Both Garage Door Springs Usually Replaced Together?
Two-spring garage doors depend on both springs to share the work of lifting and balancing the door. When the springs were installed together, they have usually experienced the same number of door cycles and similar amounts of wear.
If one spring reaches the end of its service life, the other may also be worn. Replacing the pair provides two springs with matching condition and helps restore even lifting across the door.
Door Doctor’s garage door spring replacement service includes matching the spring system to the door rather than simply installing a spring that looks similar to the broken one.
Why Does Matching the Springs Matter?
Garage door springs need to provide the correct amount of lifting assistance for the weight and design of the door. A spring that is too weak or too strong can affect how the door balances and moves.
On a two-spring system, the springs also need to work together. Matching the replacement pair helps distribute the lifting load evenly instead of relying on an older spring on one side and a new spring on the other.
After replacement, the door should be checked for smooth movement and proper balance before normal operation resumes.
Is Replacing Both Springs Just an Upsell?
It is reasonable for homeowners to ask why two springs are being replaced when only one is visibly broken.
For Door Doctor, replacing both springs on a two-spring system is intended to maintain equal tension and avoid pairing a new spring with another spring that may already have substantial wear. The recommendation is based on how the springs work together, not simply on the fact that two springs are present.
A technician should still be able to explain what type of spring system the door uses, what failed, and why the recommended replacement matches the door.
What Is Different About a Single-Spring Garage Door?
Not every garage door has two springs. Some doors use a single spring system, so there is no second spring to replace when that spring fails.
That is why the spring setup should be identified before deciding what the repair requires. The replacement spring still needs to match the door’s weight, dimensions, and lifting requirements.
The number of springs alone does not determine the correct replacement. The complete spring system and garage door need to work together.
Why Does Garage Door Balance Matter After Spring Replacement?
A garage door can be heavy, and the spring system provides the lifting assistance that allows the door and opener to move it normally.
When the spring system is properly matched, the door should travel smoothly without one side lifting faster than the other. Poor balance can make the door feel unusually heavy, move unevenly, or place unnecessary strain on the opener.
Checking balance after the new springs are installed helps confirm that the repaired system is supporting the door correctly.
What Should Be Checked When a Spring Breaks?
The broken spring is not the only part worth inspecting. Other lifting and moving components may also show wear, especially if the door was operated after the spring failed.
| Part of the System | Why It Should Be Checked |
| Remaining spring | May have similar age and cycle wear |
| Cables | Can loosen or become damaged when lifting changes |
| Drums | Help guide the cables during movement |
| Rollers | Should move smoothly through the tracks |
| Tracks | Should remain properly positioned and free of damage |
| Opener | May have been strained while trying to lift an unbalanced door |
| Door balance | Confirms the new spring system is supporting the door correctly |
An inspection helps separate normal spring failure from additional problems that may affect how the door operates after the repair.
Should You Keep Using the Door After One Spring Breaks?
No. If a spring breaks, stop repeatedly operating the garage door until the lifting system can be checked.
A broken spring can leave the door much heavier than normal. The opener may still run, but it may only lift the door a short distance or struggle against the added weight.
Do not use repeated opener cycles as a way to force the door open. If the door becomes crooked, unusually heavy, or difficult to control, leave it in place until the spring system can be inspected.
How Can You Tell if a Garage Door Spring Has Broken?
A loud bang followed by a garage door that suddenly becomes heavy or difficult to open is a common warning sign. A visible gap in a torsion spring above the door can also indicate that the spring has separated.
The door may rise only a few inches even though the opener is running. Loose cables or uneven movement may appear as well.
Look from a safe distance and avoid touching the spring, cables, drums, or brackets. Garage door spring repair involves components under significant tension and should not be treated as a DIY adjustment.
Frequently Asked Questions About Replacing Garage Door Springs
What Should You Do When One of Two Springs Breaks?
If one spring breaks on a two-spring garage door, stop operating the door and have the complete spring system checked. The springs, cables, related hardware, and door balance should be evaluated before normal use resumes.
Door Doctor serves McLean and surrounding Northern Virginia communities. Learn more about garage door service in McLean or contact Door Doctor at 703-709-7933 if you suspect a broken garage door spring.