Rusted locks, snapped sash cords, or corroded hinges can make windows and doors difficult or dangerous to operate. Repair vs. Replacement: Making the Choice

| Scenario | Recommendation | Rationale | | :--- | :--- | :--- | | | Repair | Replacing the glass is roughly 25-40% of the cost of a new window installation. | | Hardware Failure (Locks/Cranks) | Repair | Hardware is modular. Replacing a lock set extends the life of the door/window indefinitely. | | Severe Wood Rot (>30% of frame) | Replace | Structural integrity is compromised; epoxy repairs are labor-intensive and risk future failure. | | Single-Pane Windows | Replace | Long-term energy savings from double/triple pane upgrades outweigh repair costs. | | Antique/Historic Windows | Repair | Preservation value is high; modern storm windows can be added to improve efficiency without altering the historic aesthetic. |