top of page
  • Writer's picture

What are the Common Causes of Window Leaks?

Windows are not meant to last forever. And unfortunately, most homeowners tend to take their windows for granted unless something major goes wrong. And because replacement windows in Pleasanton, CA are such a big investment, most homeowners put off the project as long as possible. Instead, they put up with faulty windows until they have no other choice. What they don’t understand is problems usually start small, but can quickly progress into a more serious problem if a leak develops. Here are some of the most common causes of window leaks:

Low Quality Products

It all starts with the materials and quality of the window. Most builder-grade windows are stripped down. They are made of lower quality materials with very few upgrades. This saves the contractor money but doesn’t do much to help the homeowner in the long run. New-construction windows typically last anywhere from five to fifteen years before needing replacement.

Faulty Installation

Improper installation is another leading cause of window leaks and premature window failure. Window installation is meticulous work. It requires special training, skill, attention to detail, and the right tools. This is why it is important to hire a professional to install replacement windows.

Accidental Damage

Accidents happen and sometimes they can break the glass on your windows. Even just a small crack on the inside or outside pane can compromise the seals and reduce efficiency, durability, and safety.

Neglected Maintenance

Regular cleaning and maintenance are important in prolonging the life of windows. But while taking care of windows may seem like a basic chore, many people get it wrong. There is no need to use harsh chemicals, abrasives, or power washers on windows. These can scratch the coatings or ruin the seals. Most modern windows only require mild detergent, water, and a soft cloth to keep the frames clean.


Too much moisture can cause any number of problems. And because windows are one of the weakest points in the exterior envelope of a home, they are a common place for moisture damage to occur. Signs of a leak include discoloration, warping, peeling paint, or fog between the panes. It is important to find and repair the leak before it causes more serious damage.

Wear and Tear

Fluctuations in temperature, exposure to the elements, and routine use all cause windows to age and wear out over time. And windows that see the most use tend to wear out the fastest. These windows might develop leaks before others in the home, but for the most part, you can expect windows to last from 15 to 30 years depending on the quality. Beyond that point, it is time to start looking at replacement windows.

If your old windows develop leaks contact Quality Windows & Doors, Inc. for a quote on replacement windows in Pleasanton, CA. With over 20 years of experience our experts can walk you through the pros and cons of different window materials and styles. For more information about our products stop by 3732 Stanley Blvd. Ste. B, Pleasanton, CA 94566 or call (925) 484-1747.

8 views0 comments
bottom of page