Double Hung
Casement
Single Hung
Round Top
Slider
Awning
Bay
Special Shapes
Bow
Single Hung Round Top
Front Doors
Sliding French Door
Outswing French Door
Inswing French Door
Bi Fold Patio Door'%3e%3cpath fill='none' stroke='black' stroke-linecap='round' stroke-linejoin='round' d='M29.94 20.83a9.95 9.95 0 1 0-15.62 8.15c.44.31.71.82.71 1.36v1.26c0 .46.37.83.83.83h8.28c.46 0 .83-.37.83-.83v-1.26c0-.54.27-1.05.71-1.36a9.92 9.92 0 0 0 4.26-8.15Zm9.11 0h-4.97m-33.14 0h4.97M34.05 6.77l-3.51 3.51M5.94 6.77l3.52 3.51M20 .94v4.97m4.14 29.83h-8.28m6.63 3.32h-4.97'/%3e%3c/g%3e%3c/svg%3e)
Knowledge Center
Why Fiberglass'%3e%3cpath d='M.71 21.02 19.09 2.64c.24-.24.57-.38.91-.38s.67.13.91.38l18.38 18.39m-5.14-5.15v19.3a2.57 2.57 0 0 1-2.57 2.57H8.43a2.57 2.57 0 0 1-2.57-2.57V15.87' class='prefix__cls-2'/%3e%3cpath d='M19.71 15.2a.63.63 0 0 1 .54-.31h3.13a.6.6 0 0 1 .54.32c.11.2.11.44 0 .63l-3.2 5.27H24a.61.61 0 0 1 .45 1.04l-7.81 8.29a.32.32 0 0 1-.4.05.3.3 0 0 1-.12-.38l2.58-6.52H16a.63.63 0 0 1-.54-.31.62.62 0 0 1 0-.62l4.25-7.45Z' class='prefix__cls-2'/%3e%3c/g%3e%3c/svg%3e)
Energy Efficiency'%3e%3cpath fill='none' stroke='black' stroke-linecap='round' stroke-linejoin='round' d='m14.34 23.35.9 2.44 2.4.91-2.4.91-.9 2.44-.9-2.44-2.4-.91 2.4-.91.9-2.44Zm8.26-13.4 1.8 4.87 4.8 1.83-4.8 1.83-1.8 4.87-1.8-4.87-4.8-1.83 4.8-1.83 1.8-4.87Zm-2.59 29.31C30.5 39.26 39 30.64 39 20S30.49.74 20 .74 1.01 9.36 1.01 20 9.51 39.26 20 39.26Z'/%3e%3c/g%3e%3c/svg%3e)
Care + Maintenance
Marvin Heritage
Why Marvin Replacement'%3e%3cpath fill='none' stroke='black' stroke-linecap='round' stroke-linejoin='round' d='M20 18.66c2.58 0 4.68-2.28 4.68-5.08S22.59 8.5 20 8.5s-4.68 2.27-4.68 5.08 2.09 5.08 4.68 5.08ZM20 .87c6.46 0 11.7 5.69 11.7 12.71 0 6.01-8.58 20.98-11.04 25.16-.14.24-.39.39-.66.39s-.51-.15-.66-.39C16.88 34.56 8.3 19.59 8.3 13.58 8.3 6.56 13.54.87 20 .87Z'/%3e%3c/g%3e%3c/svg%3e)
LocationsARCH WINDOW REPLACEMENT AND ROUND TOP
Marvin Replacement Arch and Round Top windows are arch-shaped fixed windows that add traditional character and additional sunlight to your home.
MARVIN REPLACEMENT ROUND TOP WINDOW FEATURES
20 round top shapes available
Available in custom sizes
Expands viewing areas
Additional curb appeal
Line Break
Get your project started by booking a free appointment with one of our design consultants.
WHY CHOOSE MARVIN REPLACEMENT ARCH + ROUND TOP WINDOWS?
Style
Arch and round top windows fit perfectly with classically styled homes.
Elegance
Arch and round top windows add elegance and character with curved design.
Low Maintenance
Our tough acrylic finish resists fading, dents, and cracks.
Replacement Round Top Window Design Options
Replacement Round Top Window Styles
Marvin Replacement Round Top windows feature a variety of styles that impact the design of your home. Our round top windows elegantly break up the sharpness of straight lines and fit stylishly into areas to provide a bigger view, like a front door arch window.
Round top and arch windows come in 20 styles, including:
Eyebrow
Eyebrow Above Springline
Full Circle
Half Round
Half Round Above Springline
Quarter Eyebrow
Quarter Eyebrow Horizontal
Quarter Eyebrow Above Springline
Quarter Round Above Springline
Selected: Eyebrow
Configurations
Round top windows can come as a round top double hung mull where a round top sits above a double hung window.
A half round can fit above a casement window for a half round over casement assembly.
A half round over picture assembly can place a half round window above a picture window.
A round top casement three-wide mull can have casement windows at each end and a picture window in the middle with a round top above it.
Exterior Colors
Our finish stands up to the elements, so much so that 48,000 hours of sun can't fade our finish* and our fade-resistant acrylic finish resists scratches, chalking, chipping, denting, and peeling. Choose from seven stunning exterior colors to boost your curb appeal.
Selected: Stone White
Marvin's Ultrex® fiberglass finish is verified to the American Architectural Manufacturers Association (AAMA) 624 specification. Achieving AAMA 624 verification means that our Ultrex finish has passed rigorous tests that simulate the harsh conditions a finish can encounter throughout the life of a window or door.
*Average sunlight exposure per 10 years
Interior Colors
We use the same tough acrylic finish on our four interior color options that we use on our exterior colors. You can also choose our stainable EverWood® finish for the look of wood without the maintenance.
Selected: Stone White
1. Bronze interior is only available with Bronze exterior
2. Ebony interior is only available with Ebony exterior
3. Sierra interior is not available with Ebony exterior
Finish samples are approximate. Schedule a design consultation for an up close view of color options.
Glass Coatings
Our experts will walk you through energy efficient glass options to find the right selection for your home and the best windows for your climate. Choose from four glass coatings, plus decorative glass options, and specialty glass choices.
Low E-1
Primarily used in colder climates, Low E1 allows more heat in to warm a room while blocking heat loss.
Low E-2
Low E2 offers year-round performance in moderate climates. It will help retain heat in your home during the winter and keep heat out during the summer.
Low E-3
Low E3 rejects solar heat while letting light in, resulting in increased performance in climates with intense sun exposure.
Low E-3/ERS
Low E3/ERS provides maximum efficiency year-round in all conditions.
Selected: Low E1
Decorative Glass
Decorative glass options are ideal for spaces like bathrooms to balance natural light and privacy.
Selected: Rain
Specialty Glass
Marvin Replacement offers specialty glass to best suit the needs of your home. You can choose tempered glass, laminated glass, and STC/OITC glass for specific windows and rooms.
Tempered Glass
Tempered glass increases glass strength to help prevent breakage. Tempered glass is ideal for windows close to the floor or located in high-traffic areas.
Laminated Glass
Even more durable than tempered glass, laminated glass is often referred to as impact resistant or safety glass due to its vinyl inter layer that tends to remain in place when shattered.
STC/OITC Glass
Sound Transmission Class and Outdoor-Indoor Transmission Class glass has increased pane thickness on the room side and works in areas where exterior noise is a concern.
Divided Lites
We offer various divided lite patterns so you can replicate the look of your original windows and doors. Or, add new architectural interest to your home. Choose from Simulated Divided Lites for classic appeal or Grilles-Between-the-Glass for easy cleaning.
Patterns include: Circle Dual Hub Six Spokes, Equal Rectangular, Half Round Above Springline Dual Hub Three Spokes, Half Round Above Springline Open Hub Three Spokes, Half Round Solid Hub Three Spokes, and Quarter Round Open Hub.
Selected: Grilles-Between-the-Glass
Maintenance
Since Round Top and Arch windows come as direct glaze windows, they do not require any maintenance for hardware or weatherstripping. You can clean them occasionally, and maintain the surfaces on the same schedule as your other windows.
ROUND TOP WINDOW DESIGN
Round top windows can add natural light and architectural interest to your home with arched windows. They fit perfectly above windows to create unique style for your home and break up straight lines. Round top windows are fixed windows glazed directly into the frame.
Marvin Replacement Double Hung windows have two sash in the frame that slide up and down. Enjoy a cool breeze through the bottom, while warm air escapes out the top.
We know cleaning isn’t fun…but our easy tilt operation allows you to clean your window from inside your home.
Marvin Replacement Double Hung windows are built with Ultrex® fiberglass to pair lasting performance with timeless design.
Frequently Asked Questions
What’s the difference between a round top and arch window?
Arch and round top windows can be used interchangeably to describe windows with a curve at the top. They’re inoperable windows and get installed above casement, double hung, single hung windows.
Which windows do round top windows look best on top of?
Arch and round top windows can get installed above several types of windows. Common assemblies include installing arch and round top windows above double hung and single hung windows, casement windows, and picture windows.
Can you open round top windows?
Round top and arch windows remain inoperable because they get direct glazed into the frame.
What is a Palladian window?
A Palladian window is large window with an arch window in the middle, flanked by two narrow rectangle windows. The windows take their name from 16th century architect Andrea Palladio, who included symmetry and proportional style.
Arch and Round Top Window Project Transformations
Old round top and picture window
New Marvin Replacement Round Top and Picture Window
Added Assurance
Marvin Replacement windows and patio doors come with a limited lifetime warranty as well as a 5-year installation warranty to provide additional peace of mind.
Looking for more window information?
Discover more about the benefits of Marvin Replacement windows and patio doors for your home.
Best Windows for Air Circulation
Learn more about the best windows to improve air circulation in your home.
Windows to Improve Air Circulation
Fiberglass vs. Vinyl Windows
Discover the differences between fiberglass and vinyl windows, and why fiberglass windows have more strength.
Fiberglass vs. Vinyl WindowsSchedule Your Free Consultation
If you’re ready to get started, discuss your replacement window and door options with a Marvin Replacement design consultant. We’re here to answer any questions you may have, and help make your project easy.
