Specialties
At Cornerstone Window Cleaning, we specialize in delivering crystal-clear results with professional care and attention to detail. Our focus is simple: spotless windows and dependable service you can count on.
We provide residential and commercial window cleaning throughout the Pittsburgh area using both traditional hand-cleaning methods and purified water-fed pole systems for higher windows. This allows us to safely and effectively clean glass, frames, and sills while leaving a streak-free finish.
Whether it’s a storefront that needs to make a great first impression, a home that deserves more natural light, or routine maintenance to keep your property looking its best, Cornerstone Window Cleaning is committed to quality work done right.
Our services include:
• Residential window cleaning
• Storefront and commercial window cleaning
• Interior & exterior glass cleaning
• Screen cleaning
• Frame and sill detailing
• Hard-to-reach window cleaning with pure water systems
We take pride in honest work, clear communication, and results that speak for themselves.
Cornerstone Window Cleaning – Clarity Without Compromise.
History
Established in 2022.
Cornerstone Window Cleaning was built on a simple idea: do honest work, do it well, and treat every customer’s property with respect.
After years working in hands-on trades and service industries, I saw how much people value reliability and attention to detail—especially when it comes to their homes and businesses. Window cleaning might seem simple, but doing it right takes experience, the proper tools, and pride in the work.
Cornerstone Window Cleaning was started to bring a higher level of professionalism and care to the trade. From storefronts and offices to residential homes, the goal is always the same: deliver crystal-clear results without cutting corners.
The name Cornerstone reflects the foundation the business is built on—integrity, consistency, and service you can count on.
As a locally operated business serving the Pittsburgh area, every job is an opportunity to earn trust and build long-term relationships with customers who appreciate quality work.
Meet the Business Owner: Billy S.
Hi, I’m Billy
I started this business because I believe there’s real value in honest work done the right way. I’ve spent most of my life working in hands-on trades—from construction and maintenance to exterior cleaning—and I’ve always taken pride in doing a job thoroughly and treating people fairly.
Cornerstone Window Cleaning was built on that same foundation. My goal is simple: show up when I say I will, do the work carefully, and leave every window crystal clear.
As a local Pittsburgh-area business owner, I take every job personally. Whether it’s a small storefront, a family home, or a larger commercial property, I approach each project with the same attention to detail and respect for your property.
When you hire Cornerstone Window Cleaning, you’re not getting a big franchise or a revolving crew—you’re working directly with the owner who stands behind the work.
I appreciate every customer who trusts me with their home or business, and I look forward to earning your business.
