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Renewal by Andersen® Window Replacement & Patio Door Installation in Dover, DE

At Renewal by Andersen, we offer Dover residents professional window replacement and door installation services in Delaware.

Renewal by Andersen® Signature Service

Superior product.

Our Fibrex® material, made of 40% recycled wood, stands out with its unmatched strength when compared to standard vinyl windows. This makes it twice as durable, offering homeowners a long-lasting solution.

Hassle free process.

Work together with our trained professionals who will guide you through the entire window and door replacement process. Our industry-leading, full-service approach is designed to provide a smooth experience from start to finish.

Unrivaled beauty.

With the help of Renewal by Andersen designers, customize a replacement window or patio door that matches your personal style. Explore our window and door styles and customization options to find that perfect fit for your Dover home.

Long term value.

Renewal by Andersen windows and doors are built to last. They can brave extreme weather conditions for over two decades while maintaining their pristine look and full functionality. Our commitment to quality is further reflected in our comprehensive warranty coverage, which includes glass, Fibrex® material, and labor costs.

4-Step Process

Design Consultation

Engage in a free design consultation with our specialists. Here, you can envision and design your ideal window, get an estimate, and understand the expected installation timelines.

Project Planning

Precision is key. Our expert project managers carefully measure your current window and door spaces to guarantee the perfect fit. Then, our master craftsmen build your window with all your customizations in mind, ensuring accuracy every step of the way.


Experience a hassle-free installation day. Our Renewal by Andersen Certified Master Installers, along with a dedicated team, prioritize the protection of your home interiors, from furniture to flooring. With a proven method in place, we aim for efficient and spot-on installations each time.

Customer Care

Our commitment doesn’t end post-installation. Our customer care team remains at your service, ready to assist with any queries, be it about maintenance, warranty, or any other details related to your window and door replacement. We’re here to support every Dover homeowner on their journey to a more beautiful and efficient home.

Our Products

Replacement Windows

Renewal by Andersen is known for industry-leading window replacement services nationwide. Our full-service process allows homeowners to design custom windows in Dover. With seven window styles to choose from, you can select the best style for your home and add design options, such as colors, hardware, and grille designs. Master craftsmen design each window style with Fibrex® material, a composite material that outlasts and outperforms standard vinyl windows. Browse our galleries for inspiration or call our local office today to learn more! Transforming your home is truly one call away.

Awning Windows

Awning windows open outward from the bottom, using a simple crank mechanism. This design allows for better airflow, even during light rain, as the open window acts like an awning to keep rain out. They’re great for places where you want controlled ventilation, like above a kitchen sink. Plus, their tight seal helps keep your home comfortable and energy-efficient.

Bay & Bow Windows

Bay and Bow windows project outward from your home’s exterior. Bay windows typically have three panels with a larger central window flanked by two smaller ones at angles, while bow windows have four or more panels in a gentle curve. Both styles add depth and space to a room, making it feel larger. They also allow more natural light to flood in, brightening up your living spaces. The added shelf space can be used for seating or décor.

Casement Windows

Casement windows are hinged on the side and open outward using a crank handle. This design provides maximum ventilation since the entire window can be opened. When closed, casement windows have a tight seal, which helps in keeping out drafts and improving energy efficiency. Their easy-to-use mechanism makes them suitable for hard-to-reach places.

Sliding Windows

Sliding windows, or gliding windows, open horizontally with one sash sliding over the other. This design is ideal for homes with limited exterior space, as the window doesn’t project outward. They’re easy to operate and provide ample ventilation. Plus, with fewer parts than some other window types, maintenance is minimal.

Double Hung Windows

Double hung windows have two sashes (top and bottom) that move up and down. This flexibility allows you to open the window from the top or bottom, providing varied ventilation options. The sashes also tilt inward, making cleaning a breeze. Their classic design fits well with most architectural styles, and the tight seal contributes to energy savings.

Picture Windows

Picture windows are large, stationary windows designed to frame an outside view, much like a picture frame. They don’t open, which means fewer parts that can break. This simplicity offers a clear, unobstructed view and lets in a lot of natural light. Since they’re sealed, picture windows are also highly energy-efficient, helping to keep your home’s temperature steady.

Specialty Windows

Specialty windows come in unique shapes and sizes, tailored to fit specific spaces or design preferences. Whether it’s a circular window for a loft or a triangular one for an attic, these windows add a touch of individuality to your home. Besides their aesthetic appeal, they’re crafted to meet the same energy efficiency and durability standards as other window types.

Patio Doors in Dover, DE

Renewal by Andersen patio doors transforms Dover homes with expansive views and easy access to your backyard oasis. Our company provides custom sliding patio doors and hinged patio doors that enhance the look and function of your home. In addition to durable, energy-efficient glass doors, you’ll also receive a full-service installation from industry-leading experts. Need some design inspiration? Browse our galleries or schedule a free consultation with our professional designers today.

Sliding Glass Patio Door

For Dover homeowners who value a blend of modern design and space efficiency, the Contemporary Sliding Patio Door is an ideal choice. Its sleek design offers expansive views of the outdoors, making your living space feel more open and connected to nature. The sliding mechanism is smooth, requiring minimal effort, which is especially beneficial for homes with limited space. Additionally, its energy-efficient construction helps Dover residents combat the varied Delaware weather, keeping homes cozy in winter and cool in summer.

French Sliding Patio Door

The French Sliding Patio Door combines the elegance of French doors with the practicality of a sliding system. This design is perfect for Dover homeowners looking to add a touch of sophistication to their homes. The large glass panels not only enhance the aesthetic appeal but also allow an abundance of natural light to brighten up interiors. Despite its elegant appearance, this door is built to withstand Dover’s weather conditions, offering both beauty and durability.

French Hinged Patio Door

For those in Dover who prefer a classic touch, the French Hinged Patio Door is a timeless choice. Its swinging design can be customized to open inward or outward, providing flexibility in how you utilize your space. The door’s wide panels give an unobstructed view of the outdoors, creating a seamless indoor-outdoor connection. Built with Dover’s climate in mind, this door style offers a tight seal to keep out drafts, ensuring your home remains energy-efficient throughout the year.

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Entry Doors

In Dover, where every homeowner seeks a blend of security, style, and durability, Renewal by Andersen’s entry door installation services stand out. We understand the importance of making a great first impression, and our range of entry doors is designed to do just that. Beyond aesthetics, our doors are crafted to withstand the test of time and the challenges of Dover’s weather. Whether you’re looking for a door that offers enhanced security, energy efficiency, or a design that complements your home’s architecture, we have a solution tailored for you.

Legacy Steel

ProVia’s Legacy Steel entry doors stand out as a prime choice for homeowners seeking both security and elegance. Crafted from high-quality galvannealed steel, these doors offer an unmatched level of strength and protection. But it’s not just about robustness; they’re also designed with energy efficiency in mind. Their insulating foam cores effectively reduce heat transfer, helping Dover homeowners achieve savings on their energy bills.

Renewal by Andersen Storm Doors

Add a layer of protection for your custom front entry door with a storm door. Renewal by Andersen conducts comprehensive storm door installation, and ProVia offers durable, protective storm doors.

Dover homeowners choose aluminum storm doors to reinforce the durability of their steel or fiberglass entry doors. ProVia storms doors are the best glass screen doors on the market. With 20% thicker aluminum walls, these doors surpass industry-standard storm doors. Customize the best height, style, glass inserts, and self-storing screens.

Learn more about our storm door installation service when you call Renewal by Andersen in Dover today!


The people, product, and installation surpassed all my expectations. Home is noticeably quieter, cooler in the daytime, and each window has a beautiful view as compared to the old aluminum frame.

John H.

I love my new windows, made a HUGE difference in the drafts, keeping wind noise out, and keeping heat in. I also choose a different style and the view is much nicer, easier to open and close

Tonya B.

We are extremely pleased with our large dining room window. The old window was not efficient; letting cold air into the house in the winter as well letting heat from the furnace outside! The installer was very professional, efficient and cleaned everything up nicely. The entire experience from sales to installers through follow-up was a pleasure.

Seth Y.

Proudly Serving Dover and the Surrounding Areas

Looking for a reliable, full-service window replacement company? Renewal by Andersen delivers durable, energy-efficient replacement windows and patio doors to North Delaware, including cities like Camden, Dover, Woodside, and more! Transform the way you live with Renewal by Andersen® replacement windows and patio doors. Set up a free design consultation today to get started!

Renewal by Andersen Signature Fibrex® Material

The Andersen-exclusive Fibrex® material brings together recycled wood and vinyl to create a composite material that outlasts and outperforms standard vinyl windows.
With twice the strength of vinyl windows, our master craftsmen can build narrower window frames that hold larger panes of glass.
Fibrex® material never requires painting and will not crack, pit, corrode or rot.
Twenty years after installation, test results show that our windows stand the test of time.

Get in Touch with Us

Call Renewal by Andersen in Delaware to schedule your in-home consultation today. Our professionals are committed to simplifying every step of the process, so you can enjoy your new home improvement sooner than you think. Contact us to learn more about our hassle-free, 4-step process.

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