Austin Pro Calender Icon
Appointment
phone icon
Call Us
Austin Pro Siding, Windows, Roofing, Patio Covers Logo
Over 406 Google Reviews with a 4.9 Rating!
Financing
Contact Us(512) 550-0000

Why Do Windows “Sweat” During Summer?

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

Heading 1

Heading 2

Heading 3

Heading 4

Heading 5
Heading 6

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.

Block quote

Ordered list

  1. Item 1
  2. Item 2
  3. Item 3

Unordered list

  • Item A
  • Item B
  • Item C

Text link

Bold text

Emphasis

Superscript

Subscript

Are your windows frequently fogging up? Do you see moisture collecting on panes of glass as water droplets? This event is likely a case of condensation. In this post, Austin Pro Siding, Windows & Roofing — a local provider of window maintenance and siding repair services — discusses why windows form condensation in the summer months.

What Is Window Condensation?

Condensation occurs when warm, humid air comes into contact with colder surfaces. In the winter, when the heat is cranked up, it causes the humidity level indoors to increase. When the heated air comes into contact with cooler surfaces like windows, condensation takes place on their interior surfaces. Meanwhile, as the weather heats up outside during summer, the air inside your home becomes cooler. Water droplets, which appear like “sweating”, then form on the exterior surfaces of your windows.

Is Window Condensation Bad News?

While condensation on windows may look unsightly for some homeowners, it is not a reason to feel alarmed or think like your windows are not efficient at all. In fact, it is quite the opposite. According to window companies, condensation indicates that the airtight seals of your windows are doing their job. Weatherstripping, vapor barriers, insulation, and new installation techniques are a few other factors responsible for locking moisture inside your home, which drives up the chances of condensation.

The Purpose of Energy-Efficient Windows

Energy-efficient windows minimize unwanted heat transfer between the indoors and outdoors through the glass. They are commonly designed with low-E coatings which allow natural sunlight to flow into your home while deflecting ultraviolet and infrared light. This feature also keeps the exterior surface of the window at the same temperature as the air outside and the interior surface of the window at the same temperature as the air inside.

If your windows are not showing any sign of condensation during summer, it may be time to replace them. Austin Pro Siding, Windows & Roofing is one of the premier window replacement and vinyl siding contractors in Austin, TX. Our reliable team of professionals is committed to providing the comfort and efficiency that every homeowner is looking for in an exterior improvement project. Call us today at (512) 550-0000 or fill out our contact form to request a free, no-obligation quote.

Damaged Roof Decking: Why You Can’t Repair It
January 29, 2026
Damaged Roof Decking: Why You Can’t Repair It

The foundation of your roof matters. Learn why damaged decking requires replacement rather than repair to ensure structural integrity.

3 Myths About Patio Doors, Debunked‍
January 29, 2026
3 Myths About Patio Doors, Debunked‍

Don't let common misconceptions hold you back. We separate fact from fiction to help you choose the best patio doors for your home.

Top 10 Roof Replacement Signs Every Austin Homeowner Should Know
February 3, 2026
Top 10 Roof Replacement Signs Every Austin Homeowner Should Know

specific to Austin weather, here are the top 10 signs your roof needs immediate attention.

4 Ways Siding Protects Your Home
January 29, 2026
4 Ways Siding Protects Your Home

Siding is more than just curb appeal. Discover the four key ways quality siding defends your home against weather, pests, and energy loss.

Brick Exterior Painting: Benefits and Considerations
January 29, 2026
Brick Exterior Painting: Benefits and Considerations

Thinking of painting your brick? Weigh the pros and cons of this popular trend to decide if it's the right choice for your home's exterior.

What Causes Your Wood Doors to Expand and Contract?
February 3, 2026
What Causes Your Wood Doors to Expand and Contract?

Door sticking? We explain the science behind wood movement and how to prevent it.