MJ Windows Co.

Better Your Home With Windows From MJ Windows Co.

Our affordable windows offer tremendous value in improving your homes overall efficiency. 

Premium Windows, Expert Installation

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Frequently Asked Questions

Need help? Maybe we can be some assistance.

A replacement window is a window that’s custom built to fit within the opening of an existing window. It is a custom measured item designed to fit exactly and can be normally installed without removing or disturbing the interior and exterior stops/trim work around the window.

When your home was built, the window openings were made to accommodate a stock size window, whereas replacement windows are typically manufactured to custom fit existing openings. The biggest differences are reduced maintenance, ease of operation, and thermal performance features driven by new technologies.

Your house now has finished siding, walls, and trim which you probably want left intact after the windows are replaced to minimize disruption and cost. A replacement window is made to fit into your old window’s sash opening (the area of glass including its frame and any hardware) and doesn’t require the removal of interior or exterior casings. The installation of a new construction window (most likely what is being replaced) would require removal of the entire window including its jamb, head, sill, and casings to expose the stud opening. Although certainly an option, this method is more labor intensive and invasive and would involve walls and siding beyond the casings.

Friendly customer education—not high-pressure sales. Our expert Project Consultants create a laid back, informative, and enjoyable experience.

Our prices align with what it takes to pull off your project right. No more. No less.
That might not make us the cheapest, but it also means we don’t spike our prices to squeeze every last penny from you. When you choose MJ Windows Co., you choose the greatest value. It’s that simple.

As one of the Boston’s area’s most-respected and successful window companies, we have the resources to train a high-volume of smart, skilled, and passionate people.

To ensure a smooth and efficient installation process, a dedicated Project Manager will lead the planning and overall execution of your project. We make sure to dedicate the appropriate number of professionals to each and every job.

Yes! Not only are our consultations free, but they are also highly informative. Before your appointment, one of Project Consultants will come out to meet you regarding your project. These friendly and knowledgeable experts will help you decide on the look, style, and materials to be used for your particular project.

Sleep in Absolute Peace Wake up to Bright Sunshine

At MJ Windows Co, we are committed to providing our customers with top-of-the-line windows, professional installation, and exceptional customer service.