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Understanding Milgard Window Balances: A Comprehensive Guide

If you're looking for new windows or trying to repair your existing ones, you may have come across the term "Milgard window balancer." In this article, we'll explore what Milgard window balancers are, how they work, and why they're an important component of your windows.


What are Milgard Window Balances?

Milgard window balances are mechanisms that help to balance the weight of your windows so that they can be easily opened and closed. They are typically installed in double-hung or single-hung windows, which are windows that have two sashes that move up and down.   

How do Milgard Window Balances Work?

Milgard window balances work by using a spring or other type of tension device to counterbalance the weight of the sash. When you open the window, the balance extends and the sash moves upwards. When you close the window, the balance retracts and the sash moves downwards. The tension of the balance is carefully calibrated to ensure that the sash stays in place at any height.

Why are Milgard Window Balances Important?

Milgard window balances are important because they help to ensure that your windows are easy to use and function properly. If your windows are difficult to open or close, it can be frustrating and even dangerous. Additionally, if your windows are not properly balanced, they can cause damage to the frame or the glass, leading to costly repairs.

Types of Milgard Window Balances

There are several types of Milgard window balances, including:

Constant force balances use a spring or other tension device that provides a constant amount of force throughout the entire range of motion of the window. This type of balance is typically the most reliable and durable.

Block and tackle balances use a pulley system to balance the weight of the sash. This type of balance is typically less expensive but can be less reliable over time.

Spiral balances use a spiral-shaped spring to balance the weight of the sash. This type of balancer is typically used in windows with a tilt-in feature.

How to Maintain Milgard Window Balances

To ensure that your Milgard window balances continue to function properly, it's important to perform regular maintenance. Here are some tips:

  • Clean the Tracks

Dirt and debris can accumulate in the tracks of your windows, making it difficult for the balances to function properly. Clean the tracks regularly to prevent this from happening.

Apply a silicone-based lubricant to the balances to ensure that they move smoothly.

  • Check for Damage

Inspect the balances regularly for signs of damage, such as rust or corrosion. If you notice any damage, it's important to replace the balances as soon as possible.


Milgard window balances are an essential component of your windows that help to ensure they function properly. By understanding how they work and performing regular maintenance, you can keep your windows in top condition for years to come. For more information about Milgard window balances or to order replacements, Contact the WHD Team! Our experts will be more than happy to assist you. 


      • How do I know if my Milgard window balances need to be replaced?

If your windows are difficult to open or close, or if you notice signs of damage to the balances, such as rust or corrosion, it's time to replace the balances.

      • Can I replace Milgard window balances myself?

While it's possible to replace Milgard window balances yourself, it's typically best to hire a professional to ensure the job is done properly if you're not confident in your DIY skills.

      • How often should I perform maintenance on my Milgard window balances?

It's a good idea to perform maintenance on your Milgard window balances at least once a year to ensure they're functioning properly.

      • Can I use any type of lubricant on my Milgard window balances?

No, it's important to use a silicone-based lubricant to ensure that the balances move smoothly without attracting dirt or debris.

      • Do all Milgard windows come with balances?

Not all Milgard windows come with balances. It depends on the style and design of the window. It's best to check with the manufacturer or a professional installer to determine if your windows have balances.

Updated on 16 Jan 2024