DIY Window Repair: Fix a Window That Won't Stay Up (Spiral Balances)

Updated at: 18/05/2025

Frustrated with a window that stubbornly refuses to stay open? A common culprit is a malfunctioning spiral balance, the often-overlooked spring mechanism within your window frame. These vital components are responsible for the smooth, effortless operation of your window, allowing it to gently rise and fall. When a spiral balance breaks or becomes unattached, your window becomes a frustrating inconvenience, potentially leading to drafts, security concerns, and even damage to the frame itself. Fortunately, repairing this issue is often simpler than you might think, saving you the expense of a professional.

This DIY guide provides a clear, step-by-step approach to tackling a window that won't stay up due to faulty spiral balances. We'll walk you through identifying the problem, sourcing replacement parts, and safely installing them, all with readily available tools. Ready to reclaim the smooth operation of your window and avoid costly repairs? Let's get started!

Preparation and Safety Guidelines

Tools Needed
  • Spiral balance charging tool
  • Screwdriver
  • Ratchet
  • Clamp or stick
Safety Guidelines
  • Always wear safety glasses to protect your eyes from broken glass or spring fragments.
  • If you're uncomfortable working at heights, use a sturdy ladder and have someone assist you.
  • Before starting any repair, take photos of the existing setup to help with reassembly. If you have trouble identifying the components, consider bringing images to a hardware store for assistance.

Step-by-Step Instructions

  1. Prepare the Window

    • Remove window blinds or curtains.
    • Pry off or unscrew the stop blocks at the top of the window frame.
    • Prop the window open using a stick or clamp.
    Prop the window open using a stick or clamp.Prop the window open using a stick or clamp.Prop the window open using a stick or clamp.
    Prepare the Window

  2. Remove Old Balances

    • Use a spiral balance charging tool to remove the old spiral balances. Loosen the screw holding the balance in place and pull it out.
    Use a spiral balance charging tool to remove the old spiral balances. Loosen the screw holding the balance in place and pull it out.
    Remove Old Balances

  3. Order Replacement Balances

    • Measure the old balances (tube length and diameter, and bottom bracket type) to order replacements.
    Measure the old balances (tube length and diameter, and bottom bracket type) to order replacements.
    Order Replacement Balances

  4. Install New Balance (Side 1)

    • Insert the new balance into the channel, clip side down.
    • Tighten the quarter-inch screw to secure the balance.
    • Push the bottom of the balance up to engage it with the window sash. Use the spiral balance tool to hook into the hole at the bottom of the balance and turn it clockwise to add tension (5 turns).
    • Slowly raise the window until the balance hook snaps into place.
    Slowly raise the window until the balance hook snaps into place.Slowly raise the window until the balance hook snaps into place.Slowly raise the window until the balance hook snaps into place.Slowly raise the window until the balance hook snaps into place.
    Install New Balance (Side 1)

  5. Install New Balance (Side 2)

    • Repeat steps 6-9 for the other balance, ensuring equal tension.
    Repeat steps 6-9 for the other balance, ensuring equal tension.
    Install New Balance (Side 2)

  6. Final Steps

    • Replace the safety stops at the top of the window frame.
    Replace the safety stops at the top of the window frame.
    Final Steps

Read more: 3M Thinsulate Window Film Installation: A Step-by-Step Guide

Tips

  • Make sure you order the correct replacement spiral balances with the matching bottom bracket style.
  • Adding equal tension to both balances is crucial for proper window function.
  • If the window starts to fall, simply use your tool to add a few more turns to the balance.

Common Mistakes to Avoid

1. Incorrectly Measuring the Spiral Balance

Reason: Using an improperly measured spiral balance will result in the window not staying up or staying up at the wrong height.
Solution: Carefully measure the length of the old balance and match it precisely with the new replacement.

2. Forcing the Spiral Balance into Place

Reason: Forcing the balance can damage the window sash or the balance itself, leading to further issues.
Solution: Gently guide the balance into its channels, ensuring it's properly seated without excessive force.

FAQs

Where can I find replacement spiral balances for my window?
Most home improvement stores (like Home Depot or Lowe's) carry replacement spiral balances. You'll need to measure the length and diameter of your old balance to find the correct replacement. Alternatively, you can search online retailers specializing in window parts, providing the measurements will help you find the right match.
My window is still sticking even after replacing the spiral balances. What could be wrong?
If the problem persists after replacing the balances, several other issues could be at play. Check for obstructions in the window track (dirt, debris, paint), ensure the window sash moves freely, and verify the balances are correctly seated and tensioned. If the problem continues, a more significant issue with the window frame or other components might require professional attention.