Schedule Appointment
Austin Pro Calender Icon
Appointment
phone icon
Call Us
Austin Pro Siding, Windows, Roofing, Patio Covers Logo

A Look at Double-Pane Window Discoloration

By
austin pro
Written by Austin Pro Management
July 22, 2024

Window replacement contractors know that double-pane windows are one of the most important inventions in the history of home construction and improvement. Windows are often the weak link in the thermal envelope of a building, but with double-pane, gas-filled windows, that has changed.

These windows are not immune to problems, though. One of the most common issues is discoloration. This can mean the window is damaged.

What Does Window Discoloration Look Like?

You might find streaks on the surface of the window. There are different colors of mildew and mold, and one or several may appear on a damaged window. The dark streak may not be wet to the touch.

What Causes Window Discoloration?

Moisture. It’s highly likely that there is a high level of humidity in your home, a high level of humidity outside your home, and the air exchange rate in your home; that is, the speed at which the damp air indoors is replaced by fresh air. Not only does this cause discoloration, but it can also cause other problems like mold growth, wood rot and allergic reactions.

Should You Replace Your Windows?

It’s highly unlikely that you can get rid of the stains, so call your window installers to replace your windows. Don’t try to repair the windows yourself. Ask your window contractors about discoloration-resistant window film.

However, while replacing your windows can take care of the stain problem, it’s not permanent. If your windows are not the only ones causing the moisture problem in your home, your new windows will stain again over time. It’s advisable to have your home audited for any air leaks or thermal bridging to take care of the issue once and for all.

To replace your windows, get in touch with Austin Pro Siding, Windows & Roofing. We are also one of the most trusted roofers in the area. Call us today at (512) 550-0000 or fill out this form for a free estimate.

The Enduring Beauty of James Hardie®’s ColorPlus® Technology
February 28, 2026
The Enduring Beauty of James Hardie®’s ColorPlus® Technology

See how ColorPlus® technology keeps your siding vibrant and fade-resistant for years.

Why the Roof Is the Most Important Part of a Home Exterior
February 28, 2026
Why the Roof Is the Most Important Part of a Home Exterior

It protects everything else. We explain why the roof is the single most critical component of your home.

Windows and Energy Efficiency: A Clear Path to Lower Bills
February 28, 2026
Windows and Energy Efficiency: A Clear Path to Lower Bills

Connect the dots. We show exactly how energy-efficient windows lead to lower monthly utility bills.

Navigating Roofing Challenges: A Homeowner's Guide
February 28, 2026
Navigating Roofing Challenges: A Homeowner's Guide

From leaks to pests, we guide you through overcoming common homeowner roofing challenges.

Choosing the Perfect Window: A Homeowner's Guide
February 28, 2026
Choosing the Perfect Window: A Homeowner's Guide

Navigate the world of window styles, materials, and features with our comprehensive guide to finding the perfect windows for your needs.

Why James Hardie Siding Is a Smart Choice for Homes
February 28, 2026
Why James Hardie Siding Is a Smart Choice for Homes

A smart investment. We summarize the ROI, durability, and warranty benefits of James Hardie siding.