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Expertise in Wood Windows. We specialize in wood window repair in Naperville, IL, including rotted sash and frame restoration
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Fast & Reliable Service. From window screen repair to emergency glass replacement, we respond quickly and professionally.
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Local Focus. As a local business, we know what Naperville homes need—and we tailor our services accordingly.
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Transparent Pricing & Warranty. No surprises. You get upfront pricing and a satisfaction guarantee on every window replacement in Naperville.
Professional Window Services in Naperville
If your windows are foggy, drafty, broken, or rotted, we’re here to help. Our team has proudly served Naperville homeowners for years, delivering trusted window repair and replacement services that keep homes safe, energy-efficient, and beautiful.
We work with all types of windows, including historic wood frames and modern insulated glass units. Whether it’s a minor screen repair or full sash restoration, expect results that last.
Window Repair & Tune-Up
We fix common problems like drafts, stuck sashes, broken locks, and deteriorated frames. From minor adjustments to complex hardware repairs—we keep your windows working like new.
Window Restoration
Preserve the beauty of original wood windows with our full restoration services. We repair rotted sashes and sills, reglaze panes, refinish surfaces, and upgrade energy performance—while keeping the historic character intact.
Glass Replacement
Cracked, foggy, or broken? We replace single- and double-pane glass, Low-E units, custom shapes, and safety glass in all types of frames—wood, vinyl, or aluminum.
Caulking & Sealing
Boost energy efficiency with professional sealing. We eliminate air and water leaks, replace old caulk, and prepare windows for harsh Illinois winters with long-lasting weatherproofing solutions.
Whatever your window needs—from window screen repair in Naperville to full window glass replacement—we provide lasting solutions with expert craftsmanship and local care.
How we work
Inspection
Diagnosis
Repair
Warranty
Window repair cases in Naperville
Glass Replacement Case Study
3h
Naperville, IL
before
after
Before
The homeowner in Naperville contacted us with a common issue: one of their large living room windows had a foggy appearance and visible condensation between the panes. This not only obstructed the view but also significantly reduced the energy efficiency of the home. The original glass had lost its seal, and replacing the entire window unit would have been costly and unnecessary.
Our Work
Our team conducted a detailed inspection and confirmed that only the insulated glass unit (IGU) needed replacement. Within 48 hours, we custom-ordered the exact size and type of energy-efficient double-pane glass to match the existing window frame. The installation was completed in less than two hours with minimal disruption to the homeowner’s routine.
We carefully removed the damaged glass, cleaned the sash and frame, and installed the new unit with a high-performance sealant to ensure long-term durability. Our technicians also checked the surrounding windows for potential future issues.
After
The result was a crystal-clear, energy-efficient window that instantly improved the room’s appearance and comfort. The homeowner was thrilled to avoid the cost of full window replacement while achieving a like-new look and restored thermal performance.
Sash Replacement Case Study
4h
Naperville, IL
before
after
Before
A homeowner in Naperville reached out to us after noticing that one of their upstairs double-hung windows was no longer opening properly. The sash had become warped over time due to moisture damage, making the window difficult to operate and compromising its seal. Cold air drafts were noticeable during the winter, and the homeowner was concerned about energy loss and indoor comfort.
Our Work
Our technicians inspected the window and confirmed that a full window replacement wasn’t necessary—the frame and exterior components were in good condition. The issue was isolated to the sash, which had visible signs of warping and a failing seal.
We measured and ordered a custom sash that matched the existing frame and glass type. Once the new sash was ready, our team returned to the site and replaced it within an hour. We ensured smooth operation, proper alignment, and a tight seal. The lock mechanism was also tested for safety and functionality.
After
The window now opens and closes effortlessly, with a secure seal that eliminates drafts. The appearance of the window was fully restored, matching the home’s aesthetic. Most importantly, the homeowner regained full use of their window without the expense of replacing the entire unit.
Reviews of our Services
Lucie Ziebicki
I am so impressed with the team that came to replace my window. Not only was the workmanship superb—leaving me with what looks like a brand-new window—but the two gentlemen were incredibly polite and respectful. They even took off their shoes without me asking, which shows a real respect for your client's home. A fantastic experience all around!
21 October, 2025
Chicago
Bob Browne
Window Quality Works has been our trusted partner for three separate projects over the years. Simply put, they do amazing work. They've restored a variety of our wooden windows to look and function like new, and now they stand strong against Chicago's tough weather. Beyond the impeccable quality, they are a pleasure to work with—excellent communicators, efficient, and they always leave the workspace spotless. You can't ask for more.
18 September, 2011
Chicago
Lia Sampara
I had a couple of wooden windows with significant rot damage. WindowQW provided a fast estimate and then performed a beautiful restoration and repair. The results speak for themselves—I'm very satisfied with how they turned out!
15 September, 2025
Nappervile
Erika Zubkovska
I had a serious issue with rotted wooden sashes and sills. The team replaced them with new ones, and then carefully sealed and painted everything to ensure long-lasting durability. The pricing was reasonable, the estimate was fast, and the service was highly effective. They truly did an amazing job and gave me complete peace of mind!
29 August, 2020
Aurora
Chris McGrath
These guys were a lifesaver when we needed to get our windows fixed quickly before selling our house. They responded immediately, came out, and fixed everything in just one day. The price was more than reasonable for such prompt and quality service. Thanks again for your help!
8 August, 2025
Plainfield
Diego E
I contacted them for an estimate on my historic wooden windows, and the results exceeded all expectations. They didn't just give me a quote; they conducted a meticulous assessment of each window and offered thoughtful solutions. The care they took in restoring the sashes and sills was evident. My windows now operate smoothly and look beautiful. It's refreshing to find a company that still takes such pride in their work.
15 July, 2025
Aurora
Anastasiia Vatsyk
My search for a reliable sash repair company ended with WindowQW. From the beginning, they were transparent, walking me through the entire process and clearly explaining what could be salvaged versus what needed replacement. True to their word, they stuck to the agreed timeline and budget. They replaced rotting sills, freed up stuck sashes, and even upgraded the old ropes and pulleys. I'm thoroughly impressed and highly recommend them!
8 July, 2025
Nappervile
David Langowski
They See What Others Miss. Trustworthy and Skilled.
We had a few Pella windows with bad rot. The team didn't just fix what we pointed out; they did a full inspection and identified a couple of other issues we had missed. This is the second time we've used them, and once again, they did a fantastic job. They are highly recommended for their honesty and expertise.
26 July, 2025
St. Charles
Paul Wysh
I hired Window Quality Works to handle window replacements and rot repair on two of my Chicagoland properties. They did a thorough and efficient job, working quickly without sacrificing quality. I was very satisfied with their work and will highly recommend them to other property owners. I look forward to working with them again in the future.
6 May, 2025
Joliet
