How much is a window regulator replacement?
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between $300 and $450
On average, a new window regulator will cost between $300 and $450 and sometimes more, depending on the make and model of the car you drive. Windows that move most frequently, namely the driver’s side front window, will require replacement before the others.
How does a window regulator fail?
The window regulator can overheat from excessive use and stress over time, which can lead to a complete failure of the regulator. If a motor starts to overheat, the best practice would be to let it cool down before trying to use it again. Freezing temperatures can cause a window to disconnect from a window regulator.
What are the common problems with window regulators?

Window regulator common problems. A broken window regulator cable can cause the window to jam or fall down inside the door. See this example, where the cable broke and the power window stopped working. Worn out cable guides or a frayed window regulator cable can cause abnormal noises when the window is moving.
What is a power window regulator?
The mechanism which allows power windows to work their magic is called a power window regulator. Every door with a power window has an electric motor built inside of it. This motor is connected to the window by the regulator.

Is it time to replace your window motor/regulator assembly?
Many of today’s popular cars, trucks, and SUVs have a combined motor and regulator assembly that needs to be replaced together if one of the components is not functioning correctly. However, there are a few warning signs that the components inside the window motor/regulator assembly are beginning to wear out.
What are the symptoms of a bad motor on a window?
Symptoms of a Bad or Failing Window Motor / Regulator Assembly. Cost of Replacing a Bad or Failing Window Motor / Regulator Assembly. Common signs include having to press multiple times to roll the window up or down, slower or faster window speed, and clicking sounds from the door.