We're not a national chain — we're your Rockford neighbors. Since 1990, Advanced Window Systems has delivered honest work, fair prices, and top-quality products to thousands of Illinois homeowners.
Our Story
Advanced Window Systems was founded in 1990 with a simple belief: homeowners deserve quality products, honest advice, and fair pricing — without the pressure tactics of big national chains.
For over 30 years, we've served the northern Illinois and southern Wisconsin communities from our home base in Loves Park. We've helped more than 5,000 families improve their homes with energy-efficient windows, beautiful doors, and durable siding.
We're proud to be a local, family-operated business. When you call us, you talk to real people who know your neighborhood. When we show up, it's the same crew every time — experienced, careful, and respectful of your home.
Our formula hasn't changed in 30+ years: stock only the finest products, provide experienced service, and offer it all at a fair price.
What We Stand For
Everything we do comes back to these three principles — the same ones we've operated by since 1990.
We stock Lindsay Windows, Albany Door, and other top-rated brands. We never compromise on product quality — your home deserves the best.
No gimmicks, no bait-and-switch, no pushy sales. We give you honest recommendations and let you decide what's right for your home and budget.
We believe quality home improvement shouldn't cost a fortune. Our prices are fair, transparent, and itemized — no hidden fees, ever.
The People Behind the Work
Experienced professionals who take pride in every installation — and treat your home like their own.
Owner Photo
With 30+ years in the window and door industry, our founder built this company on the belief that every homeowner deserves honest service and quality products.
Lead Installer Photo
Our installation crew brings decades of combined experience to every job. Trained, licensed, and committed to leaving your home cleaner than they found it.
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From your first call to post-installation follow-up, our team is here to answer questions, schedule visits, and make sure you're completely satisfied.
Credentials
We back our work with industry credentials and manufacturer partnerships that protect your investment.
Fully licensed contractor in Illinois. Comprehensive liability insurance on every job.
Accredited member of the Better Business Bureau with an A+ rating since our founding.
Authorized installer of Energy Star certified windows and doors for Northern Climate zones.
Authorized dealer for Albany Door — "Doors finished with pride" since our partnership began.
Work With Us
Join 5,000+ satisfied Rockford-area homeowners. Get a free, no-pressure estimate today.
Loves Park, IL · Mon–Fri 8AM–5PM
