Why Choose Our Downers Grove Window Repair Services
1
We provide permanent, not temporary, fixes that extend the life of your windows for years
2
Our craftsmen use accurate techniques and materials to preserve the character of your house
3
Enjoy significant energy savings and improved comfort with our precision window sealing and repair
4
Get a transparent, upfront quote with no hidden fees and a clear timeline for your project
Professional Window Services in Downers Grove
When your windows are drafty, damaged, or simply failing to perform, you need a local expert you can trust. Window repair and restoration is our specialty. We understand the unique architectural styles found throughout Downers Grove, IL, and we are committed to providing solutions that enhance your home’s efficiency, aesthetic, and value. Whether you live in a historic property or a modern build, our team has the skills to handle any challenge.
While many companies are quick to suggest a full window replacement in Downers Grove, we often find that a professional repair or restoration is a far more cost-effective and historically sympathetic solution. We meticulously assess each window to determine the best course of action, ensuring you invest only in the services you truly need.
From a simple glass replacement to a comprehensive window restoration, we treat every job with the utmost care and attention to detail.
Services We Offer
Window Sash Repair
A malfunctioning sash can prevent your window from opening, closing, or locking properly. We repair stuck, wobbly, or unbalanced sashes, replacing broken cords, weights, or balances to restore smooth, secure operation.
Window Frame Repair
The structural integrity of your window depends on a solid frame. We expertly repair frames that are warped, cracked, or out-of-square, ensuring a tight fit for your sashes and eliminating drafts that drive up your energy bills.
Window Sill Repair
Your sill endures constant exposure to moisture and sun. We repair sills that are cracked, rotted, or water-damaged, using durable wood epoxy or custom-fabricated replacements to prevent further water infiltration and restore a finished look.
Rotten Wood Window Repair
Don’t let rot compromise your windows. Our specialized rotten wood window repair in Downers Grove involves carefully removing decayed sections and rebuilding them with two-part wood epoxy or dutchman repairs. This process strengthens the wood, stops rot progression, and saves you the high cost of a full frame or window replacement.
Window Restoration
This comprehensive process brings old windows back to their original glory. We disassemble the window, repair all components, replace broken glass, restore the wood, and apply new weatherstripping and hardware. The result is a like-new window that performs beautifully and preserves your home’s historic charm.
Window Replacement
When a window is damaged beyond repair or you desire an upgrade, we offer expert window replacement in Downers Grove. We help you select energy-efficient, style-appropriate new windows and ensure a flawless installation that protects your home from the elements.
Window Caulking & Sealing
Ineffective sealing is a leading cause of drafts and high energy costs. Our technicians meticulously inspect and replace failed caulk and seals around your windows, creating an airtight and watertight barrier that enhances your home’s comfort and efficiency.
Glass Replacement
We offer fast and professional glass replacement in Downers Grove for broken, fogged, or outdated panes. Whether you need a new insulated glass unit (IGU) or a custom piece of historic glass, we handle it with precision to ensure a perfect fit and clear view.
How we work
Inspection
Diagnosis
Repair
Warranty
Contact Us
Professional window repair, restoration & replacement in Downers Grove
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
