If you are tired of seeing your energy bills climb each year, we have the solution to immediately save you a substantial amount of money. Since 1989, Calandra Contracting has proudly offered homeowners quality energy saving windows and professional installation at a great price!

WindowsOur constant attention to quality and detail has allowed us to become the replacement window leader throughout suburban Maryland and DC metro area.

But What’s This All Mean to You?

Replacement windows, on average, pay for themselves through reduced heating and cooling expenses.They also dramatically improve the appeal and value of your home both inside & out while providing more comfort through the dog days of summer, and those long winter nights.Your new windows will be energy efficient and beautiful at the same time!

So What’s the Best Replacement Window?

We have replaced many of windows over the years, and we have come to realize that each window replacement project is like a snowflake in that no two are the same.

That’s why each window is custom-made with the latest in insulated glass technology to ensure the best possible insulation performance and seal strength, and that means more money in your pocket.

Not only are they functional, but the look great too!

We feature a wide array of styles, decorative options, complementary trim selections and performance packages for a fully customizable product to suit your personal style. 

Our windows are custom-made to fit your current window openings precisely. They are easier to install because they require no additional wall construction, in comparison to stock windows found at your local retailer.

Featuring a broad range of styles; from single- and double-hung, sliding, fixed, casement and awning, bay, bow and garden window models – and even patio doors; we understand that your vision has no limitations.

Without compromising performance or beauty, our unlimited choice of products are designed to bring your vision to reality.

If you would like to see some of our work, click here to visit our gallery, if you would like to find out a little more about us, click here. If you would like to drop us a line and schedule a free, no obligation consultation, click here, and thank you for visiting, we hope to hear from you!

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Calandra Contracting

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