Window Replacement

At Four Twelve, bring expert workmanship and customer service to every aspect of exterior remodeling. We provide industry-leading window replacement in Baltimore City and the surrounding communities, including Anne Arundel, Baltimore, Howard, and Harford counties. 

Unbeatable Service for Windows in Baltimore

Since 2013, Four Twelve has been making the lives of home and business easier across the greater Baltimore area. We built our company as experts in every aspect of exterior remodeling, from roofing and framing to siding, and of course, window replacement and installation. Through every step of our process, we promise excellent service, clear communication, detailed craftsmanship, and product selection that will keep your home beautiful and functional for years to come. 

Whether you need replacement windows in Baltimore or replacement windows in Columbia MD, we have the capacity and expertise to take on projects of all kinds. Our commitment to service starts from the moment we pick up the phone, and continues to after the project has been completed. Our exterior remodeling team is experienced in a variety of installation types, so regardless of the window you choose you can be confident that you’ll receive a great final product. 

Our Gallery

Windows Tailored To Your Needs

Four Twelve’s Commitment to quality comes out in every project we undertake. We’re proud of our track record, with over 250+ five-star reviews of our work on Google. 

However, quality is only one aspect of our window replacement in Baltimore. We also bring the flexibility to tailor the project to your individual needs with a huge variety of window options. From bay and casement windows to awning and double-hung, our varied options allow you to find options that fit any window shape and home style. 

Vinyl Window Options

At Four Twelve, we want to bring options that fit a wide range of budgets, needs, and design options. We carry two distinct lines of vinyl window products. 


Our economy range of vinyl windows bring excellent quality at a reasonable price point. Durable and reliable, these are a great option for those who don’t want to break the bank but still want a great window option. With a fusion-welded frame, they will withstand through the years and elements. With a variety of exterior and interior color options, grid designs and patterns, you can truly build the windows that work right for your home. 


Our luxury window options bring all of the benefits of our economy options, but with substantially increased energy efficiency that will help you save on your power bill over time. The dual-pane insulated glass technology allows the windows to meet Energy Star requirements while still providing superior sightlines. This efficiency is matched with a fantastic aesthetic and wide range of customizability. 

Specialty Windows

In addition to our standard vinyl window options, we have a variety of specialty window options to choose from as well. These meet the unique needs of clients all over, whether you’re searching for replacement windows in Frederick MD or window installation in Bel Air MD. 


Wood-framed windows are an all-time classic that has made a huge comeback. Many homeowners love the beautiful appearance wood windows bring to their homes. And modern advancements in sealant and varnish have more wood windows more durable and long-lasting than ever before. 


When upgrading your windows, you may want to consider the efficiency of what you choose. Windows can have an outsized effect on how your home retains heat and cold air. We offer a line of windows that bring enhanced energy efficiency to help lower your energy bills down the road. 

home that received roofing in Catonsville MD

Types of Windows

At Four Twelve, we work with a variety of different window types that fit different homes. This design flexibility allows you to have options when choosing the right replacement windows in Baltimore and the surrounding areas. Our expert team can guide you through the selection and design process, ensuring you choose the windows that will be right for your home. 

Awning Windows

Awning windows provide superior airflow thanks to their unique method of opening 

Bay Windows

Enjoy beautiful outside views and extra shelf space with expansive bay and bow windows. 

Casement Windows

Enjoy a clean, modern spin on a classical design style all while boosting energy efficiency

Double-Hung Windows

Double-hung windows are built with design flexibility, with top and bottom openings for increased air flow

Expert Contractors for Window Replacement in Baltimore and the Surrounding Areas

Since 2013, the Four Twelve team has been committed to quality service and excellent workmanship. Our experienced team will guide you through the window process from start to finish, ensuring you end with a finished product you love. Fill out the form to get started today. 

How Did You Hear About Us?(Required)