Windows, Doors, and Insulation
Traditional Home With Sliding and arched Windows

Connecticut Window Installations

Are you looking to upgrade the windows in your Connecticut home? Millstream Construction is a leading window installation company serving homeowners across the state. We specialize in premium window replacements that improve energy efficiency, enhance curb appeal, and increase the value of your home.


Why Get Your Windows Replaced?

Installing new windows is one of the best home improvement investments you can make. Outdated windows can be a significant source of energy loss, leading to higher utility bills and discomfort from drafts.

Replacement windows provide superior insulation to keep your home warmer in the winter and cooler in the summer. Along with lowering your energy costs, new windows also reduce exterior noise, increase natural lighting, and require less maintenance. If your current windows are difficult to operate or showing signs of wear, like fog between panes, it’s time for an upgrade.

Home with Double Hung Windows and Diamond Shaped Window

Our Window Selection

At Millstream Construction, we understand the importance of having well-insulated and properly sealed windows and doors. These components play a crucial role in maintaining your property’s comfort and energy efficiency. Our team of experienced professionals is dedicated to providing high-quality installation services for windows, doors, and attic insulation in Connecticut. Whether you’re building a new property or upgrading an existing one, we have the expertise to ensure your home or business is properly equipped to maintain a comfortable indoor environment while minimizing energy loss.


Bay windows provide a unique architectural feature that extends outward from your home’s exterior wall, creating extra interior space and allowing abundant natural light.

Awning windows are hinged at the top and open outward from the bottom. Their versatile design makes them ideal for areas where ventilation is needed.

Casement windows are hinged on the side and open outward with a crank operation. Their contemporary style and maximum ventilation make them a popular choice.

Casement windows are hinged on the side and open outward with a crank operation. Their contemporary style and maximum ventilation make them a popular choice.

Double-hung windows have an upper and lower sash that move vertically. This timeless and energy-efficient style is perfect for bedrooms, living rooms, and offices.

A garden window is a box-like structure that projects outward from the home, great for growing plants and offering a sunny spot in the kitchen.

Picture windows are larger fixed windows that don’t open, designed to provide an unobstructed outdoor view and let in natural light.

Single-hung windows have a stationary upper sash and a moveable lower sash, making them an affordable option for bedrooms and bathrooms.

Sliding windows open horizontally and work well in areas with space limitations. Their simple design makes them cost-effective replacements.

We also offer specialty architectural shapes like arched, round, hexagonal, and octagonal windows to complement your home’s unique style.

Our Window Installation Process

At Millstream Construction, we meticulously ensure your new windows are installed with the highest levels of craftsmanship and attention to detail. Our trained crews follow rigorous procedures honed over years of experience.

The installation begins with carefully removing your old windows while protecting your home’s interior from dust and debris. We then prepare the openings, making any repairs necessary to create a clean, level surface for the new window to be secured against.

Next, we install the new energy-efficient window unit using premium materials and methods that exceed industry standards. This includes insulating around the entire perimeter with high-performance materials to prevent drafts and noise transfer. We also apply a protective trim capping around the exterior for long-lasting weather resistance.

Throughout the installation, we regularly inspect our work to verify that everything is structurally sound, properly sealed, and operating smoothly. The windows are tested to ensure a weathertight fit.

Finally, we thoroughly clean up the job site inside and out, ensuring no mess is left behind. We take the time to demonstrate how to operate your new windows and address any final questions you may have.

Our certified window installers take pride in their superior workmanship on every job. You can rest assured that your windows will function beautifully and stand the test of time when installed by Millstream Construction’s skilled contractors.

Take Advantage Of Our Window Promotion

Millstream Construction is offering a special window promotion for a limited time – buy 4 windows and receive the 5th one free! Upgrading your home’s windows is a significant investment, so take advantage of this great deal. Ask your window consultant for complete details.

Milstream Team infront of truck

Contact Millstream Construction For High-Quality Window Installation

When it comes to window installations in Connecticut, no one beats Millstream Construction for quality products, expert installation, and outstanding customer service. We’ve helped countless homeowners throughout the state with their window replacement projects.

Contact us today for a free, no-obligation consultation and quote. Our window specialists will work with you to find the perfect style and design to complement your home.


call today 1-860-748-3459
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