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Window Balances
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Not sure which balances you need? Coil balances are commonly used in tilt windows are are ideal for modern vinyl frames. They're compact, durable, and easy to replace, which is great for straightforward residential repairs. Channel balances, also known as block and tackle balances, are designed for non-tilt windows and handle heavier sashes with smooth, controlled movement. They're a popular choice for aluminum and vinyl windows. Spiral balances are a reliable, cost-effective option often found in older windows. They're simple in design and easy to adjust, making them a practical solution for many classic window systems.
Match your replacement to your existing balance to restore smooth, secure window operation without the cost of full window replacement. Not sure which part you need? Use our part finder here.
Channel Balances
Coil Balances
Spiral Balances
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Andersen Other Sash Balances F.A.Q's
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Window Balance FAQs
What does a window balance do?
A window balance counteracts the weight of the sash, allowing it to open smoothly and stay in place when raised. If a balance fails, the window may slide down, feel heavy, or refuse to stay open.
What’s the difference between channel, coil, and spiral balances?
- Channel balances (block and tackle) use a spring-and-pulley system housed inside a metal channel and are common in non-tilt aluminum or vinyl windows. They’re ideal for heavier sashes.
- Coil balances use a coiled spring system, typically found in tilt-in vinyl windows. They’re compact and designed for modern window systems.
- Spiral balances use a spiral rod inside a tube and are often found in older or non-tilt windows. They’re simple, durable, and adjustable.
How do I know which type of balance my window uses?
Remove the sash and look inside the window track. A long metal channel indicates a channel balance, a visible coiled spring system indicates a coil balance, and a tube with a spiral rod indicates a spiral balance.
Can I switch from one window balance type to another?
In most cases, no. Windows are designed for a specific balance system, and switching types typically requires significant modification. It’s best to replace your window with the same balance style it was originally designed to use.
What are signs that my window balance needs replacement?
Common signs include a sash that won’t stay open, drops suddenly, feels difficult to lift, sits unevenly, or shows visible damage to the balance mechanism.