For many years, Rotten Window Repair has been assisting homeowners in Lemont, IL with restoring and maintaining their windows. Our team has completed numerous projects, including replacing shattered panes, repairing wooden frames, sashes, and sills, and installing new window systems. With more than nine years of daily hands‑on experience, we confidently handle both routine tasks and complex restoration work.
Full-Service Window, Door & Glass Solutions
When you contact us, you receive support from specialists who work with a wide range of window styles — double‑hung, single‑hung, casement, sliding, bay, bow, garden, picture windows — as well as French and patio doors. We service aluminum, vinyl, and wooden constructions and offer multiple glass options, from tempered and insulated units to low‑emissivity, patterned, or tinted glass. We clearly explain the advantages of each choice and help you select the best solution for your home.
Protecting Lemont’s Architectural Character
If your property reflects a historic architectural style and you want to preserve its original appearance, we provide careful restoration services. Our team has experience working with older homes and understands how to maintain authenticity while improving functionality.
Common Misconceptions About Window Care
Myth 1: Rain can replace proper window cleaning. Natural rainfall does not remove dirt or buildup. Regular, gentle cleaning helps maintain appearance but does not extend the lifespan of the window — that belief is simply a marketing trick.
Myth 2: A cracked pane is nothing to worry about. Even a small crack compromises insulation and can quickly worsen. Delaying repairs often leads to a full glass replacement.
Myth 3: Fog inside a double‑pane window is harmless. Moisture between panes indicates seal failure. Once the seal is damaged, the unit loses its insulating properties and should be replaced.
Myth 4: Rotten wood can be fixed with a coat of paint. Paint only hides the problem. Rot continues to spread, weakening the frame. Proper restoration involves removing damaged areas and reinforcing the structure.
Fix Today — Don’t Wait for Bigger Problems
We tailor our solutions to your home’s style, your budget, and your expectations. If your windows show cracks, moisture buildup, or wood deterioration, it’s best to address the issue before it becomes more costly. Contact Rotten Window Repair at +1 847 979‑0316, and we will restore comfort, warmth, and clarity to your home in Lemont.
How we work
Inspection
Diagnosis
Repair
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Professional window repair, restoration & replacement in Geneva
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
