One or two garage door springs: questions for the technician

Whether to replace one or both garage door springs depends on the actual system, manufacturer guidance and condition. The answer should explain the door and proposed arrangement rather than apply a universal spring-count rule.

Count the system, not just visible coils

Some doors are designed with one spring, some with more, and some use enclosed or proprietary equipment. Do not remove covers to count them or assume a double-width door always has the same arrangement. The correct configuration follows the door and its engineered counterbalance requirements. Tell the technician about accessible labels, previous spring work and modifications to sections, glazing or insulation that could affect the existing specification.

Ask why the companion spring is included

When one spring in an existing multi-spring arrangement fails, the remaining spring's age, use and condition matter. Clopay's safety guidance recommends replacing both for its applicable two-spring doors, but the actual manufacturer's guidance and system still need to be identified. Ask which recommendation applies to your equipment. A clear explanation should distinguish replacing a companion spring from converting a door that was designed for a different arrangement.

Compare complete specifications

The number of springs is not a direct measure of quality or a guarantee of longer service. Two proposals may use different compatible arrangements or cycle specifications. Ask what each proposal changes, how it is matched to the door and which related components are included. Do not choose a part by wire appearance or a rough length. Installation and final balance checks matter alongside the named spring and any documented rating.

Keep necessary work and optional changes separate

If a higher-cycle option or system conversion is offered, request the reason, compatible hardware and price difference as a distinct alternative. Ask what is required to restore the current door and what benefit the optional change is intended to provide. Actual written coverage terms should be reviewed separately from claims about life. A recommendation should not depend only on replacing the maximum number of parts or choosing the least expensive visible item.

Leave the failed system out of use

Do not continue using the opener because another spring remains intact. Avoid manual lifting, tension adjustments and cable or bottom-bracket work. Keep the opening clear and report the current position. Contact I-95 Garage Door with your city and safely known system details to confirm supported assessment options. Ask for installed part records and the final balance and opener safety checks after the appropriate work is completed.

For model-specific operating and troubleshooting information, use your manufacturer’s manual. See LiftMaster’s service guidance and Clopay’s repair information.