At Rotten Window Repair Company, we take glass seriously. Choosing the right materials isn’t just a technical decision — it’s a commitment to quality, safety, and long-term performance for every homeowner we serve. Cardinal IG Company is our choice!
That’s why for over 9 years, we’ve partnered with one of America’s most respected glass manufacturers: Cardinal Glass Industries. In this article, we’ll explain why we trust insulated glass units from Cardinal IG Company and why you can trust us to deliver results that last.
Who is Cardinal Glass Industries?
Cardinal is a leading U.S. manufacturer of high-performance glass for windows and doors. Their products are used by top window brands across the country and backed by rigorous testing, innovation, and verified environmental standards (EPD).
Their flagship product is a warm-edge double-glazed unit designed for maximum durability and energy efficiency.
Why do we use insulated glass units from Cardinal IG Company?
- Double silicone sealant: ultra-low failure rate: just 0.20% over 20 years
- Stainless steel spacer: blocks moisture, retains argon
- Warm-edge spacer design: resists condensation, improves edge temperature
- Polymer-free construction: no chemical fogging
- P-1 tested: survives extreme heat (140°F), humidity (100%), and UV exposure
- Improves U-Factor to 0.005: meets modern building codes
- Compatible with LoĒ coatings: reduces heat loss and solar gain
- Cardinal currently has over 400 million IG units under warranty: a testament to their reliability. Their 20-year thermal seal warranty speaks volumes about the confidence they have in their product.
What types of glass do we install?
We offer a full range of Cardinal glass options to match your window type and performance needs:
Annealed Glass
Standard glass that’s easy to cut and shape. Used as a base for other types. Not recommended for high-impact or safety-critical areas.
Tempered Glass
Safety glass that’s heat-treated for strength — 4x stronger than annealed. Breaks into small, less dangerous pieces. Used with caution in commercial settings.
Insulating Glass (IG)
Two or more panes of glass, separated by a spacer, with a sealed air or argon space between them. This construction improves thermal comfort, reduces noise, and boosts energy efficiency.
Low-Emissivity (Low-E) Glass
Energy-saving glass with a thin metallic coating. Reflects infrared heat, keeping warmth inside in winter and outside in summer.
Colored & Patterned Glass
Available by request, ask our manager for the current catalog of decorative options.
Not sure what you need?
No problem. Our technician will help you choose the right glass during your free estimate. You can also check out our blog article: «Types of the Window Glass: What Should I Choose?»
Why choose Rotten Window Repair Company?
- Friendly, detailed communication — we answer all your questions
- High-quality work delivered on time
- 20-year warranty on thermal seals
- Transparent pricing — no hidden fees
Ready to replace your window glass with confidence?
We’ll guide you from free consultation and measurements to expert installation — quickly and professionally.
Call us at +1 630 716 6181 or fill out the form on our website. Let’s restore clarity to your windows and peace of mind to your home!
