Windows play a vital role in both the appearance and protection of any property. Over years of exposure to harsh weather—sun, rain, wind, and fluctuating temperatures—glass, frames, and seals naturally begin to wear down. Instead of committing to a full window replacement, which can be costly and disruptive, repairing your existing windows is often the more efficient and budget‑friendly solution.
At WindowQW, we specialize in restoring and revitalizing windows for homes and businesses throughout Lake Forest, IL. Our team brings aging wood windows back to their original strength and beauty, carefully repairing everything from glass and sashes to frames and hardware.
Complete Window & Glass Restoration Solutions
Every project begins with a detailed assessment to determine the most effective repair strategy. We restore structural components, replace damaged parts, and ensure the window maintains its original style and functionality. Whether your property features modern windows or historic architectural designs, we provide reliable, long‑lasting restoration.
Our services include:
Windowsill Repair & Replacement
Deteriorating sills can lead to moisture issues, drafts, and energy loss. We repair or replace sills made of wood, vinyl, or metal to prevent further damage.
Sash Repair & Replacement
A sturdy sash is essential for proper window operation. We restore worn or broken sashes to improve stability, appearance, and ease of use.
Skylight Repair
From damaged seals to cracked glass, we address skylight issues that can cause leaks or reduced insulation.
Patio Door Repair
We fix damaged frames, malfunctioning mechanisms, and worn seals. When necessary, we also replace patio door glass.
Window Glass Replacement
Our team installs single-, double-, and triple-pane units, along with insulated, tempered, annealed, and low‑E glass options.
Glass Repair
Minor cracks and chips can often be repaired quickly, restoring safety and clarity without replacing the entire pane.
Foggy Window Restoration
We remove moisture trapped between panes to restore visibility and improve insulation.
Why Window Repair Is the Better Choice
Full window replacement can be expensive, time‑consuming, and unnecessary. Our repair services offer a practical alternative that preserves your property’s character while improving performance and efficiency.
Key advantages of repairing your windows:
- Maintains original charm: Restoring existing windows keeps the architectural style intact.
- Extends lifespan: Quality repairs can add many years of reliable use.
- Improves energy efficiency: Fixing seals, frames, and glass reduces heat loss and enhances comfort.
- Significant cost savings: Repairs can be up to 75% more affordable than full replacement.
How we work
Inspection
Diagnosis
Repair
Warranty
Contact Us
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
