Window Repair and Glass Replacement Services in Oak Brook, Illinois
If you’re searching for a reliable window repair and glass replacement company in Oak Brook, look no further. Rotten Window Repair Company proudly serves Oak Brook, Illinois, and the surrounding areas with top-quality window and patio door repair services.

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Expert Window Repair Services
Our team specializes in wood window repair. If your wooden windows are showing signs of damage — such as rotting wood, cracks, or structural issues — it’s time to consider repairs. Damaged window frames, sills, and sashes can affect both the appearance and functionality of your windows. By repairing these issues, we help restore their integrity, improve insulation, and prevent future moisture-related problems.
Comprehensive Window Restoration
Damaged or deteriorating windows can increase energy bills and put extra pressure on your HVAC system. Our window restoration services include repairing or replacing glass, frames, sashes, and sills, ensuring your windows remain durable and long-lasting. At Rotten Window Repair, we pride ourselves on being a trusted name in window repair and restoration.
Sash and Sill Repairs
The sash is the part of the window that holds the glass and slides within the frame. Over time, wooden sashes may suffer from rot, warping, or operational issues due to worn components. Similarly, window sills play a vital role in supporting the sash, providing insulation, and serving as a decorative surface. The most common issue with wooden sills is rot, but often they can be repaired rather than replaced.
Rotten Window Frame Repair
Each case of window frame damage is unique. Depending on the extent of the damage, our solutions may include partial wood replacement, glass and frame repair, or full frame replacement. When we replace glass, we use high-quality Cardinal Insulated Glass units, which enhance performance and energy efficiency. We also offer a 20-year warranty on the thermal seal for added peace of mind.
Patio Door Repair
Patio doors face constant exposure to weather and daily wear and tear. This can lead to issues such as cracked glass, damaged frames, sticking doors, or unusual noises when opening and closing. Minor repairs can often be completed in just a few hours, while more extensive work — like rebuilding rotted sections — may take longer.
New Window Installation
Repaired windows and doors can greatly improve your home’s appearance, energy efficiency, and security. We work with:

Awning windows
Awning windows are hinged at the top and open outward, forming a protective “awning” when open. They are perfect for areas that need ventilation even during light rain.

Bay windows
Bay windows consist of three or more panels arranged at angles, extending outward to create additional interior space. They bring in more natural light and provide a panoramic view of the outdoors.

Bow windows
Bow windows are made up of four or more panels that curve outward, creating a rounded appearance. They enhance the sense of space and offer a wider view of the surrounding landscape.

Casement windows
Casement windows are hinged on the side and open outward, making them ideal for tall, narrow spaces. They provide excellent ventilation and a sleek, modern look.
Sliding windows and doors, such as french doors and patio sliding doors.

Sliding windows and doors, such as patio sliding doors or French doors, open horizontally along a track for smooth operation. They are ideal for creating seamless indoor-outdoor transitions and saving space.

Double-hung windows
Double-hung windows are constructed of two sashes. Both the top and bottom sashes can slide up and down within the frame, offering improved ventilation. You can open the bottom sash to bring in air from below and the top sash to allow air to escape from above. This style is popular in both classic and modern homes.

Garden windows
Garden windows extend outward from the home, creating a small, enclosed space perfect for growing plants or displaying decor. They allow for maximum sunlight and add charm to kitchens or other living spaces.

Picture windows
Picture windows are large, fixed windows designed to frame the outdoor view like a picture. They do not open but provide ample natural light and a clear, unobstructed view.

Single-hung windows
Single-hung windows have a fixed upper sash and a lower sash that slides vertically to open. They are a cost-effective and space-saving option for any home.
Glass Replacement Services
Cracked or broken glass not only affects your home’s comfort but also poses a safety risk. We specialize in high-quality glass replacement for:
Cracked or
broken panes
Scratched
glass
Foggy
double-glazed
windows
Foggy windows typically indicate a failed seal between panes, allowing moisture to enter. In such cases, replacing the insulated glass unit is the best solution.
Trusted Window Experts in Oak Brook
With over 8 years of experience, Rotten Window Repair Company has served clients in Oak Brook and more than 34 other service areas. Our team handles all types of window and patio door challenges — from minor repairs to full replacements — with consistent quality and attention to detail. We believe in finding cost-effective solutions for our customers. Whenever possible, we recommend repair instead of replacement to help you save money.
We are your local window repair solution!
Windows are essential to your home’s comfort and curb appeal — even those made by well-known brands like Andersen, Marvin, and Pella. With regular use, even the highest-quality windows may need repair. Our local team in Oak Brook, provides fast, affordable, and reliable repair services to keep your windows functioning at their best.

Why Regular Window Maintenance Matters
Avoid costly structural damage: Ignoring window issues can allow water infiltration, leading to rot, corrosion, and potential damage to your home’s structure.
Ensure smooth operation: Well-maintained windows open and close easily, without jamming or draft issues.
Reduce noise pollution: Properly sealed windows provide better sound insulation, creating a quieter indoor environment.
Protect your health: Rotting wood and mold growth around windows can contribute to allergies and respiratory problems.
Save on energy costs: Efficient windows reduce heat loss and lower your utility bills by maintaining stable indoor temperatures
Get Your Custom Quote
Whether you need emergency repair or routine maintenance, we’re ready to help. Contact us today for a free estimate and consultation. Call us directly at +1 630-716-6181 or visit rottenwindowrepair.com to schedule an appointment. Let us help you preserve the value, comfort, and beauty of your home with expert window repair services.
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