About Us

The Team You Can Count On

At Advanced Window Systems, we want your window replacement, door replacement, vinyl siding installation, and shower/bath installation to be an easy and worry-free experience!

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Leadership|Accountability|Integrity|Innovation|Growth|Teamwork|Positive Attitude|
Leadership|Accountability|Integrity|Innovation|Growth|Teamwork|Positive Attitude|


Advanced Window Systems is a family-owned and -operated business with over 40 years of experience. We are one of the most highly respected, trusted, and regarded companies in our industry and are fully licensed and insured in both Connecticut and Massachusetts. We treat all of our customers as individuals, not just as numbers so when you sign on with us, you become a valued member of the AWS family. Our professional and polite employees will do everything in their power to establish a repertoire with their customers, facilitating easy communication and business transactions.

We offer our customers outstanding value by providing premium products and superior customer service, specializing in windowssidingdoors and now shower & bath! We back both our products and our expert workmanship with the strongest lifetime warranty on the market, giving our customers the utmost peace of mind. Any product of ours comes with a guaranteed standard of quality that you just can’t find anywhere else.

We ensure each project is performed by a qualified team of experts with our factory trained installation crews. Not only are our employees great workers, they’re great people too! We understand the subtleties in working in private residences, so our employees are sensitive to the client’s needs on a case by case basis. If you have any special requests regarding how our employee’s conduct themselves during the installation process, don’t hesitate to ask.

Why Choose AWS?


We Provide Premium Products

Home remodeling products, professionally installed.

Superior Customer Service

Updating your home should be easy and affordable.

40+ Years Experience

As a local family-owned business AWS has completed more than 20,000 jobs and earned over 400 5-star reviews from proud homeowners.

Qualified Team of Experts

From our sales team to the installers, our employees are trained, knowledgeable, and experienced.

This Is Our Story

Joe LaVoie starts replacing windows, siding, roofing, and doors, working out of his Marlborough, CT home.
Joe names the business Advanced Window Systems, LLC and moves to a building where he can manufacture his own windows.
AWS outgrows their manufacturing operation. Joe decides to hire another family-owned company to produce his exclusive window, and the company moves to their building in Berlin, CT.
AWS has grown to become one of the Top 500 home improvement companies in the nation.
Our Community

The Ways We Give Back

Advanced Window Systems Partners with Habitat for Humanity to help people in the community and all over the world build or improve their homes.
Advanced Window Systems donates a portion of their proceed on every job to help feed American families in need. 148,153 meals provided to American families so far!
Advanced Window Systems partners with Rebuilding Together in order to help low-income homeowners through home renovation and repair. They do this by donating time and resources every year on Rebuild Day where they get together and help improve homes in our community.

Over 10,000 homeowners

have taken advantage of our AWSome warranty that’s unmatched in the industry.



Free Shop-At-Home Convenience

Making it easy to see styles, colors, and options.

Fast & Easy Financing Options

Can fit any budget to make your home improvement project affordable.

Professional Installation

Backed by our Lifetime Warranty

What Homeowners Are Saying

"Had the team out to replace an old cast iron tub and tile surrounding. Thank you to Kelly for coming to the home and introducing your product. Thank you to Kressimire and his team for the installation. All members of the AWS team were professional and courteous from start to finish. Would absolutely hire AWS in the future.”

- Ursula W.

"I had really old windows and the difference with the new windows is amazing. Instantly felt the difference without the draft. I would highly recommend AWS!”

- Lynn R.

"We love our door more every time we look at it. It really opens up the area, the drafts are gone forever. I will recommend AWS to anyone I meet or know that needs new doors, windows, or siding. ”

- Debbie K.

"Crew was fantastic showed up exactly when they said they would! Very professional very clean awesome job. Couldn't be more happy - highly recommend. ”

- Jimmy S.