The answer to 'gutter installation warranty' is that most professional gutter installation companies offer a warranty on their workmanship, typically ranging from 5 to 20 years. This warranty covers any issues with the installation, such as leaks, sagging, or improper drainage. The warranty may also cover the materials used, such as the gutters and downspouts, for a certain period of time.
The length and coverage of the warranty can vary depending on the company and the specific products used. It's important to ask about the warranty details when getting a quote for gutter installation, as this can help ensure that your investment is protected in the long run.