Window Installers
Every installer is factory-trained and experienced in handling even the most complex window shapes to ensure long-lasting performance and a seamless look.
Every window replacement is backed by our exclusive lifetime workmanship warranty for lasting peace of mind.
We provide transparent, no-pressure consultations right at your home, so you can make the best decision without guesswork.
We only install windows from proven brands with superior insulation, durability, and style options tailored to Wisconsin’s climate.
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We've completed 665 window jobs in Janesville
Your window project is only as good as the team behind it. Our crews specialize in energy-efficient window installations for every style of home in Janesville, from 100-year-old bungalows to new construction near Harmony Township. We take the time to get every measurement and detail right the first time.
When you choose Infinity, you’re investing in more than just new windows – you’re getting the security of our lifetime workmanship warranty. If a window we install ever fails due to an installation error, we’ll fix it free of charge. It’s our promise to every homeowner we serve in Rock County and beyond.
Casement windows can be used alone or in a series to create a bow window. These windows usually feature a hinge on one side and can often be opened outward or inward.
Slider, or glider, windows are opened and closed simply as the glass seamlessly moves across a track.
Egress windows are emergency exit windows commonly installed in basements. Instead of style, these windows are defined by dimensions that meet building code regulations.
Create more space and let more natural light in with bow windows. These windows are usually made up of multiple casement windows that stick out from the exterior of your home.
Picture, or fixed, windows are completely sealed shut, making them highly energy-efficient. These windows can come in many shapes for the perfect accent.
Most double hung windows provide multiple ventilation options - lower the window from the top or raise up from the bottom.
Composite windows are built to look like wood windows, but will never warp or absorb moisture. These windows are incredibly durable and are energy efficient.
Awning windows swing outward to allow for proper ventilation. These windows are commonly used in basements and bathrooms.
These three-part windows have an arched window with square side sections. Palladian windows are a focal point for many historical homes and add tremendous curb appeal.
Oriel windows brighten up spaces and make interiors look larger. Curb appeal skyrockets at the sight of an elegant oriel window.
Bay windows are outward-projecting architectural features with a series of windows, creating a bay or alcove. They enhance views, natural light, and aesthetics, usually with a central window flanked by angled side windows.
Skylights are great for increasing the amount of natural light in your home, and, when placed correctly, can provide natural heat for your home.
A smart, budget-friendly solution with modern looks and dependable performance. Brilliance windows are ideal for homeowners looking to upgrade without overspending.
One of the most trusted names in the industry, Pella offers high-performance fiberglass, vinyl, and wood windows with stylish design flexibility and ENERGY STAR efficiency.
Marvin’s premium windows are designed for those who want it all – luxury aesthetics, industry-leading energy ratings, and lasting performance. Perfect for custom homes and statement remodels.
Submit a free estimate form with your window project requirements.
Call our Janesville office at (608) 400-8008 and ask us anything.
Live chat with an Infinity Exteriors representative right now.
Window replacement projects in Janesville typically range from $9,600 to $27,872 depending on the number of windows being installed, their style, and the frame material selected. Vinyl windows are commonly the most budget-friendly option, while premium vinyl and fiberglass frames increase the overall project cost.
| Window Material | Avg Cost |
|---|---|
| Vinyl | $9,600 - $15,840 |
| Premium Vinyl | $12,800 - $21,120 |
| Fiberglass | $14,080 - $27,872 |
Homeowners in Janesville can take advantage of flexible financing options that allow exterior improvement projects to be completed without paying the entire cost upfront. Many loan programs include short-term repayment options along with extended terms up to 120 months, helping spread project costs into predictable monthly payments.
| Pay in Full Cost | Est 12-month Payment | Est 120-month Payment |
|---|---|---|
| $7,111 - $42,667 | $593 - $3,556 | $59 - $356 |
