Window and Patio Door Replacement Made Easy in Boston

Your project, made simple with Infinity from Marvin. Let our team handle every detail. Get started with a free, no-pressure in-home or virtual consultation.

My Info
Yes! I’d like to hear about promotions, special offers, and news from Infinity. By leaving this unchecked, you’ll only receive information about your project.
By continuing, you agree to Infinity’s Terms of Use & Privacy Policy. By providing your phone number, you agree to be contacted by voice or SMS to schedule or follow up your appointment.

Limited Time Offer: Buy 4 Infinity windows or doors, get the 5th on us

The Infinity Difference

Black Marvin Replacement Sliding French door in a home dining room.
Replacing your windows and patio doors can be daunting, with many vendors to choose from, and dozens of choices to make. Here's what separates Infinity from the rest of the pack.

Speak with a design consultant, who then provides help in selecting the right windows and patio doors for your project.

Infinity products are all built using Ultrex® fiberglass for long-lasting performance and timeless design.

Installation is an easy and hassle-free experience. Our dedicated team handles it all for you, and makes sure you're satisfied.

Backed by a Limited Lifetime warranty on your new windows and doors, and a Lifetime Installation and Service Warranty.

Custom Windows

Energy efficient replacement windows in every style

Double-hung Window Product IconDouble Hung
Single-hung Window Product IconSingle Hung
Casement Window Product IconCasement
Slider Window Product IconSlider
Awning Window Product IconAwning
Bay Window Product IconBay
Bow Window Product IconBow
Round Top Window Product IconRound Top
Specialty Window Product IconSpecial Shapes
Double Hung Replacement Windows
Interior entry image featuring a Double Hung Window in Stone White interior finish with White hardware.
Infinity Double Hung Windows open by sliding up from the bottom and sliding down from the top. Double hung windows are a classic style, and are easy to clean from inside your home.
Custom Replacement Patio Doors

Patio doors to keep your home warm and inviting all year

Sliding Patio Door Product IconSliding Glass Replacement Patio Doors
Sliding French Door Product IconSliding Glass Replacement French Patio Doors
Inswing French Door Product IconInswing French Replacement Doors
Bi-fold Patio Door Product IconBi-Fold Replacement Patio Doors
Sliding Glass Replacement Patio Doors
Interior living room image featuring a Sliding Patio Door in Ebony finish with Matte Black Northfield hardware and a Bronze sill.
Infinity Sliding Patio Doors offer expansive views through glass panels that slide open horizontally. Sliding patio doors feature space-saving operation, making them a smart choice for any home.
Top quality 10+ on everything, starting with the initial salesman through the quality assessment at completion. BRAVO.
Patricia K.
Lynn, MA
Hassle-free process

Your replacement project, expertly handled

Infinity consultant speaks with couple about windows

Expert consultation

Start your project with a free in-home or virtual consultation. Your Infinity project consultant will meet with you to understand your specific project needs, then work to find the right style, colors, and features for your home.

Infinity windows installer installs a window

Professional installation

On installation day, your old windows and doors will be removed, and your new Infinity windows and doors will be expertly installed.

A woman drinking coffee on a deck with Marvin windows behind her.

Peace of mind

You'll get peace of mind with our industry-leading warranties. Your coverage will include a Limited Lifetime Warranty on your new windows and doors, and a Lifetime Installation and Service Warranty.

Schedule your free consultation


If you’re ready to get started, discuss your replacement window and door options with an Infinity design consultant. We’re here to answer any questions you may have, and help make your project easy.

Get Started