About Cornerstone
Built on a foundation of integrity and hard work, Cornerstone Window Cleaning is a local, family-run business serving Grand Island and the surrounding communities in Nebraska.
Cornerstone Window Cleaning is a family-owned business serving Grand Island, Nebraska, and the surrounding communities. We started this company with one simple mission: to bring more light into people’s homes and businesses through honest work, dependable service, and attention to detail.
For us, window cleaning isn’t just about glass. It’s about how people feel in their space once it’s bright, fresh, and clear. A clean window lifts moods, improves first impressions, and makes a home or business feel welcoming. That’s why we treat every property with the same care and respect as if it were our own.
Meet our team
At Cornerstone, our strength comes from a small but hardworking team committed to delivering consistent, high-quality results.
Renee Buchta — General Manager
Renee is the friendly voice making sure everything runs smoothly. She handles scheduling, communication, and the details that keep our service dependable and stress-free for every client.
Michelle Schrock — Lead Window Cleaner
Michelle is the one you’ll see bringing windows back to life. With a steady hand and an eye for detail, she takes pride in leaving every space brighter than she found it.
Why Choose Cornerstone?
When you hire us, you’re not just hiring a service, you’re partnering with a local team that cares.
Respect for your home and schedule.
Clear communication and fair pricing.
Consistent, high-quality results.
We’re guided by faith, committed to excellence in detail, and dedicated to serving our Grand Island Community with integrity.
