General Contractors

Offer owners a better solution. Integrated Window Systems’ patented, punch-window installation process offers a higher-quality, longer-lasting solution with a shorter construction timeline. Plus, by removing costs in unnecessary labor and outdated installation techniques, the owners can afford additional windows in their building. You save money; they save money. That’s a win-win!

The responsible solution for punch-window installation

We understand you’re in the business of making everyone profitable! IWS offers an innovative solution that accelerates completion time, increases profitability, improves installation methods, eliminates future repair costs, IWS offers an innovative solution that accelerates completion time, increases profitability, improves installation methods, eliminates future repair costs, and allows coastal markets to avoid aluminum corrosion. That benefits everyone!

Let’s Get Started!

We’ll send you the specs, dimensions, and ASTM information you need to get started with approvals! 

For immediate needs, please call Ken Stranz today at 515-782-9965 or email at kstranz@iwstilt.com.

Integrated Window Systems

Custom sizes available.
Call for a quote!

We can meet your glass requirements, both functional and aesthetic.

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3 Simple steps

STEP 1: SET

STEP 2: PLACE

STEP 3: LIFT

Cost Savings

“Choosing to embed versus forming, true cost savings were realized from labor and material in excess of 3 hours per window installation for the entire building. Moving forward, IWS windows is my first choice when it comes to punch windows.”

– Customer Review