Skip to Main Content Skip to Footer Content

Glass Doctor Blog

Custom Glass

How To Identify And Repair A Failed IGU

Identify & Repair Failed IGU

Glass Doctor explains how to spot and fix a failed insulated glass unit (IGU).

  • Look for foggy or hazy windows as a key sign of IGU failure
  • Confirm moisture or condensation between glass panes
  • Remove and replace the failed IGU for best results
  • Consult Glass Doctor for professional repair or replacement

As a homeowner, regular household maintenance is crucial in the prevention in costly repair bills. Although we enjoy all of nature’s four seasons, we also need to remember that constant weather changes have an impact on our home, especially our windows. A lot of homeowners are unaware that our windows are what help maintain temperate levels in our home. That’s why it’s recommended to inspect your windows regularly to see whether they need to be replaced or repaired.

Routine inspection of your IGU’s (Insulated Glass Units) is very important. One of the most obvious things to monitor on your IGU is the amount of condensation around the windowsills. Condensation will appear as excessive beads of sweat around the windows. Although condensation is rather normal in times of seasonal change, be aware that you should not have puddles around your windowsills.

One of the main reasons IGUs have issues is because the caulking around the windows is not installed correctly. Another reason for an IGU to fail would be due to “Solar Pumping”. Solar pumping is caused from the windows contracting at night, which allows air to enter. The constant contraction and expansion weakens seals around the windows, which allows moisture to enter and causes your IGU to fail.

For more information, contact your local Glass Doctor® who will be happy to assess your window needs.

Let Us Call You

Service Type*

By checking this box, I consent to receive automated informational and promotional SMS and/or MMS messages from Glass Doctor, a Neighborly company, and its franchisees to the provided mobile number(s). Message & data rates may apply. Message frequency may vary. Reply STOP to opt out of future messages. Reply HELP for help or visit https://glassdoctor.com/. View Terms and Privacy Policy.

By entering your email address, you agree to receive emails about services, updates or promotions, and you agree to the Terms and Privacy Policy. You may unsubscribe at any time.

About Glass Doctor

Brick storefront with outdoor seating and floor to ceiling glass windows and door.
Established in 1962 with 270+ trusted locations, Glass Doctor provides complete glass repair, replacement, and installation services to residential, automotive, and commercial customers across North America. Glass Doctor is a subsidiary of the Neighborly® family of service franchises.
Learn More

Find a Glass Doctor Near Me

Let us know how we can help you today.

Choose a Glass Type:*

*Indicates a required field

Call us at (833) 974-0209
Glass Doctor van.