Window and Patio Door Replacement
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Schedule Your Window & Patio Door In-Home Consultation
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Getting started
Your design consultation
Infinity Replacement sells and installs custom-built Infinity by Marvin windows and patio doors tailored to your home with expert guidance and a dedicated customer success manager handling every detail.
Assess current windows and doors
Your consultant will evaluate your current windows for moisture issues, water damage, rot, or structural concerns. They'll also note any energy efficiency or functional issues.
Select installation method
Depending on the condition of your existing windows, they will determine if it's a redesign with a full-frame replacement or one-for-one insert replacement.
Select the right options
From window style to performance glass to hardware finishes, your consultant will walk you through all the design options.
Understand replacement costs
Your consultant will help you price out your replacement and understand how to budget for your project.
Take measurements
Your project manager will visit your home to measure openings, accounting for variances. These measurements will be used to place your order and custom-build your new windows and doors for a proper fit.
Plan an installation timeline
When placing your order, your consultant will give you a detailed timing estimate. We will be in touch with you over the weeks your order is being custom built, keeping you posted on progress and confirming installation dates with you.
Door and Window Installation
What to expect on installation day
Walk-through
Your project manager will conduct an initial walk-through on installation day and introduce you to your Infinity Replacement installers.
Remove old windows or doors
Our installers will carefully remove your old windows and doors before preparing the opening for new windows and doors.
Installation
Installers fit windows and doors securely. They’ll use flashing and caulk to prevent air and water leaks.
Final walk-through
Your project manager will conduct a final walk-through. We’ll explain how to operate your windows or doors and answer your questions.
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Window Installation Services
Infinity replacement windows
Limited Lifetime Warranty for your Infinity windows and doors for as long as you own your home
Five-year installation warranty for peace of mind
An experience that is designed to give you assurance at every step of the way
Our core value: Do the Right Thing
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Ultrex® Fiberglass
Strength and look of fiberglass replacement windows
8x
Ultrex is 8x stronger than vinyl
Millions of fiberglass strands lend strength to your windows for slimmer profiles and broader views.
3x
Acrylic finish is 3x thicker compared to the competition
Infinity's proprietary finish provides a cleaner, smoother look that resists fading — even with the darkest colors.
Built for life®
Infinity's Ultrex fiberglass offers lasting performance
5k less conductive
Ultrex fiberglass is 5,000x less conductive than aluminum
Materials like fiberglass help insulate your home, retaining more heat in the winter and helping you stay cooler in the summer.
Outlasts 48K
UV hours
Smooth, lasting finish
Low-maintenance acrylic finish is 3x thicker than all other options, creating a polished look that resists scratching, denting, and fading, even after 48,000 hours of sunlight.
87% less expansion
Maintains leak-proof fit
Expanding less than both vinyl and Fibrex®, Ultrex frames stay tight and true to your glass panes, maintaining an energy-efficient seal year after year.
Fibrex is a registered trademark of Andersen Corporation.
Enhance your home's views
Picture your window replacement project
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Explore Infinity's replacement fiberglass window and door collection
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Awning window
Maximize light and airflow in tight spaces with a top hinge.
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Bay window
Open your space with more dimension and natural light.
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Bow window
Create airier rooms with a gentle curve that captures more light and fresh breezes.
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Casement window
Enjoy uninterrupted views and inviting breezes with a standard Easy Wash® hinge for simple cleaning.
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Double Hung window
A classic look with more ventilation and easy-clean tilt operation.
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Round Top window
Brighten any room while making a statement with elegant curves.
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Single Hung window
Traditional fixed-top-sash style with seamless contemporary performance.
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Single Hung Round Top window
Single-hung operation with custom character.
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Special Shape window
Fixed windows lend architectural interest while inviting natural light.
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Sliding French door
Classic design with effortless sliding provides more expansive views.
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Sliding Patio door
Sleek profile with compact operation expands your space and fills your room with light.
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Swinging French door
Fixed windows lend architectural interest while inviting natural light.
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Bi-Fold doors
Designed for true indoor-outdoor living with configurations up to 22-feet wide.
Infinity Replacement reviews
Don't take our word for it. Read what our customers say.
Frequently asked questions
Wondering if the issue you’re facing means it’s time for replacement? Here are some clear signs it’s time to replace your windows:
Broken or damaged windows
Water issues
Home update
Foggy window glass
Drafty windows
Windows won't open or close
High energy bills
Several components make a window energy efficient. First, Low-E glass coatings play a role in reducing heat transfer to make your home energy efficient. Windows have microscopic thin metallic coatings designed to reduce energy loss. The coatings can reflect solar heat away from a home, or when applied on the interior side of the glass, reflect heat back into a room. Second, double pane windows can reduce heat transfer. Third, the window frame material adds heat transfer resistance. Ultrex fiberglass is 5,000x less conductive than rolled form aluminum, meaning greater resistance to heat transfer.
Ultrex is a custom reinforced fiberglass composite used to create windows and patio doors. Ultrex has superior strength, stability, and durability to other window and patio door materials. Ultrex won’t melt or lose its shape, even when exposed to extreme temperatures of up 285° F.
Here's a breakdown of Ultrex fiberglass construction:
Raw fiberglass strands:
The process starts with thin strands of strong glass cables and saturate them with specifically compounded resins.
Pultruded fiberglass:
The strands are pulled through a heated die and cut them with diamond-edged blades to form Ultrex.
Proprietary acrylic finish:
Ultrex is topped off with a proprietary acrylic finish that is smoother and 3x thicker than competitive options.
Infinity Replacement has a worry-free limited lifetime warranty for as long as you own your home and a five-year installation warranty. You can learn more about each below.
Here are the areas we serve:
Kentucky: Lexington, Louisville
Massachusetts: Boston
New York: Long Island, Lower-Hudson Valley, Mid-Hudson Valley
North Carolina: Charlotte, Greensboro, Raleigh
Ohio: Cleveland, Cincinnati, Columbus, Toledo
Oregon: Portland
Pennsylvania: Philadelphia
Washington: Seattle
Not Seeing Your Location?
Infinity has a well-established dealer partner network across the country. Find a consultant.
Infinity by Marvin has an established network of independent partners who provide Infinity windows. Infinity Replacement is Infinity's direct-to-consumer retail business that provides homeowners with full-service window and patio door replacement. Marvin Replacement and Infinity from Marvin - Ohio locations became unified under the name Infinity Replacement in 2026. Whether working with an independent dealer partner or with Infinity Replacement directly, you will find the level of outstanding customer satisfaction you've come to expect from a Marvin brand.
You can expect a seamless window and patio door installation process with Infinity Replacement. Once you've ordered your windows or doors, an Infinity Replacement customer success manager will work with you to provide updates and helpful information as your order gets custom built.
When your windows and doors arrive, a project manager will conduct an initial walk-through and introduce your installers. The crew will remove your old windows and doors and prepare the space for the installation of your new windows and doors. The installers will ensure a proper and plumb fit with proper flashing and caulking to seal your home against air leaks and water infiltration. The installers will clean up the work space once their work is done and a project manager will conduct a final walk-through following the installation to ensure everything meets your satisfaction.
Schedule your in-home design consultation
Our design experts will provide helpful guidance and a price quote tailored to your style and budget.