Your Trusted Window Contractors in Marlborough, MA

At Capitol Siding & Home Improvement Company, we take immense pride in being the premier window contractor in Marlborough, Massachusetts, and nearby areas. With over 70 years of experience and a commitment to excellence, we have earned our reputation as the leading window company in the community.

For you, this means when you hire us, you can expect quality and precision that maximizes your investment and elevates the beauty, efficiency, and value of your home. You’ll also get honest answers, straightforward recommendations, and transparent pricing throughout the process. Getting new windows has never been this easy!

Custom Window Replacements

When you choose our team as your window contractor, you can rest assured you’ll get top-quality, energy-efficient windows. In fact, the replacement windows we install are custom-made and meticulously crafted by Harvey Industries. They feature low-E coatings, dual panes of glass, and a warm edge spacer system. This all combines to ensure your home remains comfortable year-round, with the added benefit of energy-efficiency and minimal maintenance.

A Wide Range of Colors and Styles

In addition, we offer a wide range of styles, colors, and finishes for your window replacements. Whether you prefer a classic, traditional look or a more contemporary aesthetic, our options will perfectly complement both the interior and exterior of your home.

Expert Window Installation

When it comes to window installation, our team stands apart from other window contractors. We offer the finest craftsmanship from skilled technicians who work with care and diligence to make certain every window has an airtight, leak-free seal.

Let’s Get Started!

If you’re looking for a window contractor you can count on in the Marlborough, MA, area, contact Capitol Siding & Home Improvement Company. With over seven decades in business and more than 23,000 satisfied customers, we stand as the largest and oldest window contractor in the area.

Plus, our A+ rating with the BBB, along with numerous awards and recognitions, reflects our unwavering commitment to excellence and customer satisfaction. Your home deserves the Capitol Siding touch! Contact us today to learn more.

“They are truly professionals and craftsmen in their trade and take pride in their work. It was amazing what they accomplished each day and how they left the grounds and their equipment in such an orderly fashion at day's end. ”

David & Betty J.
Getting Started Is Easy

No Deposit Required!

Click the button below to get a free quote.
Get a Quote
Getting Started Is Easy

No Deposit Required!

Click the button below to get a free quote.

Get a Quote

“They are truly professionals and craftsmen in their trade and take pride in their work. It was amazing what they accomplished each day and how they left the grounds and their equipment in such an orderly fashion at day's end. ”

- David & Betty J.

“I have used Capitol Siding many times for siding, roofing and storm doors. Every time they have exceeded my expectations. Excellent product, excellent install and service. ”

- Paul T.

“We used Capitol Siding to replace all of our windows and had a fantastic experience with them. Our entire home was completed in 2 1/2 days and and we are so thrilled with the final project! ”

- Rosie F.
View more