Milwaukee Fiberglass Replacement Windows: Protective & Cost-Effective

Fiberglass Window Installation in Wisconsin

For top-notch durability and a lifetime of energy savings, contact our Wisconsin window contractors for fiberglass window installation. Fiberglass windows are known for their elegant appearance, strength & low-maintenance. They’re a common alternative to clad wood since they offer the same look without the high-end price point. Fiberglass is stiffer, lighter, and more resistant to water & temperature changes than wood. While fiberglass typically costs about 25% more than vinyl windows, they offer extreme durability and a longer lifespan. We can install fiberglass casement windows, sliding windows, awning windows, hopper windows, picture windows and more.

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Fiberglass Window Benefits

Cost of Fiberglass Replacement Windows in MilwaukeeFiberglass frame window installation by Milwaukee contractors

A typical fiberglass window project ranges between $600 and $1000 dollars fully installed. Keep in mind the additional costs of trim, molding, or any decorative fittings. We can't set a fixed price on fiberglass window installation because it varies on a case-by-case basis. For an exact price on your project, we'll send a window professional to your home or business for an inspection. Invest in your home at an affordable price with Infinity's window replacement & installation financing.

Milwaukee Fiberglass Window Repairs

Fiberglass windows used to be rarely manufactured and were only available in one color (white). Now they’re distributed nationwide and come in a range of interior/exterior colors. The frames are as easy to paint as wood if you’re looking for a change. This means that replacing your fiberglass windows isn’t always necessary. If you need a repair on your existing fiberglass windows, contact Infinity Exteriors.

Window Replacement by Milwaukee’s #1 Exterior Remodelers

To ensure your new construction or replacement window installation goes smooth, hire our professional window contractors. Faulty installation can cause leaks, bad insulation, and a shorter lifespan. Infinity Exteriors is Wisconsin’s best exterior remodeling company. To showcase our performance in the Milwaukee area, we invite potential customers to check out our customer reviews, interactive exterior map, and before & after gallery.

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Contact Infinity Exteriors for fiberglass replacement windows. Get a free estimate on warrantied window installation in Milwaukee, Wisconsin.
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Common Window Types and Styles:

Bow window installation, replacement, & repair in Milwaukee, WI


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.

Brands: Great Lakes, Pella, Marvin, Richlin


Add more indoor space to a room and bring in more natural light with bay windows. These windows are often made with three panes to form an arc that extends your home's exterior.

Brands: Great Lakes, Pella, Marvin, Richlin

Double Hung Window Installation Milwaukee, WI

Double Hung

Most double hung windows provide multiple ventilation options - lower the window from the top or raise up from the bottom.

Brands: Great Lakes, Pella, Marvin, Richlin


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.

Brands: Great Lakes, Pella, Marvin, Richlin

Sliding Window Installation & Replacement in Milwaukee, WI


Slider, or glider, windows are opened and closed simply as the glass seamlessly moves across a track.

Brands:  Great Lakes, Pella, Marvin, Richlin


Awning windows feature a hinge on the top and swing outward to allow for proper ventilation even if it's raining. These windows are commonly used in basements, bathrooms and kitchens.

Brands: Great Lakes, Pella, Marvin, Richlin

Skylight Replacement & Repair in Milwaukee, WI


Skylights are great for increasing the amount of natural light in your home, and, when placed correctly, can provide natural heat for your home.

Ask Infinity about available options.

Picture Window Installation in Milwaukee, WI


Picture, or fixed, windows are completely sealed shut, making them highly energy-efficient. These windows can come in many shapes for the perfect accent.

Brands: Great Lakes, Pella, Marvin, Richlin


Custom and specialty window shapes are available to suit the needs of your home's design.

Brands: Great Lakes, Pella, Marvin, Richlin


Egress windows are emergency exit windows commonly installed in bedrooms and basements. Instead of style, these windows are defined by dimensions that meet building code regulations.

Brands: Great Lakes, Pella, Marvin, Richlin


Composite windows are built to look like wood windows, but will never warp or absorb moisture. These windows are incredibly durable and feature fully welded construction, ensuring energy efficiency and durability for years.


Vinyl windows are made from incredibly durable PVC. These windows have high resistance to heat transfer, making them extremely energy efficient.

Brands: Great Lakes, Pella, Marvin, Richlin


Wood windows can be stained or painted to match your home's decor. Wood windows from Pella come with optional aluminum clad protective exteriors to keep your wood windows in excellent condition all year.

Brands: Great Lakes, Pella, Marvin, Richlin


Fiberglass windows are extremely durable and low-maintenance. These windows will withstand Wisconsin's extreme temperatures and weather conditions from Spring to Winter.

Brands: Great Lakes, Pella, Marvin, Richlin

Oriel bay windows in Milwaukee


Oriel windows brighten up spaces and make interiors look larger. Curb appeal skyrockets at the sight of an elegant oriel window.

Brands: Great Lakes, Pella, Marvin, Richlin


These three-part windows have a central arched window with square side sections. Palladian windows are a formal, Renaissance-era focal point for many historical homes and add tremendous curb appeal.

Window Installation FAQ

Getting started with the window replacement process can be challenging. We're here to make it easier.

We carry Pella, Richlin, Marvin, Sierra and more. We also carry FlexScreen flexible and invisible window screens to help you get the most out of your new windows. Infinity can accommodate any custom need.
Infinity’s windows come with a lifetime frame warranty, lifetime glass breakage warranty and a lifetime screen warranty. Most window installers are just passing off the manufacturer warranty as their own.
Infinity offers 3 easy payment options. Check out our financing page for more details.
Infinity has completed thousands of window remodeling jobs throughout Wisconsin.
Very impressed with my initial correspondence with Infinity Exteriors Office representative Julia and Project Coordinators Sam and Isaac. All have been very pleasant and informative. When Sam and Isaac came to the home to the discuss the project in detail they arrived punctually, were very knowledgeable and were great to deal with. Looking forward to working with this company on our home improvement.
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Brookfield Franklin Grafton Milwaukee Madison Muskego New Berlin Oconomowoc Pewaukee Racine Sheboygan Shorewood South Milwaukee Waukesha Wauwatosa West Allis
and throughout Southeast Wisconsin.


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and throughout Northeast Wisconsin.


Madison Sun Prairie Waunakee Fitchburg DeForest Stoughton
and throughout Central Wisconsin.