Welcome to Lakeside Window Company

Turn to Lakeside Window Company for assistance on choosing windows for your next building or remodeling project. Our team of window experts provide services tailored to meet your specific project needs. From conception to completion, we're here to help you achieve your goals for your project. We offer almost 30 years of experience in the building industry. We pride ourselves on our knowledge of the products we carry. Our attention to detail saves homeowners and builders time and money. Our showroom includes a variety of Marvin and Integrity Windows and Door displays. Our experts will walk you through and help you to understand the latest technology and options so that you can make the best choice for your project.


All fields with an (*) are required.

Integrity from Marvin made with Ultrex

What’s Your Reputation Worth?

New construction, remodeling, replacement – no matter the project, the products you recommend for your customers are a make-or-break proposition. That’s why building professionals like you have chosen Integrity® windows and doors, job after job. Learn how Integrity from Marvin can benefit your customers and your reputation.

Integrity Ebony and Bronze All Ultrex Interior Finishes
You Don't Have to Compromise Style for Performance

Integrity windows and doors are made with Ultrex® , a pultruded fiberglass we’ve patented that outperforms and outlasts vinyl, roll-form aluminum and other fiberglass composites. We use Ultrex and our proprietary pultrusion process to manufacture high-demand windows and doors that endure all elements without showing age or wear. Now, you can have Bronze and Ebony interior finishes on All Ultrex windows, maintaining the strength and durability of Ultrex with finishes relevant to today’s design trends.

Marvin and Integrity Voted "Best In Quality"

Builders Vote: Best In Quality

Each year, BUILDER Magazine asks professionals to weigh in on their brands of choice, from those they recognize and those they use to those they trust to perform when they need them the most. This year, Marvin and Integrity led once again in quality, and Integrity was voted the brand in its category that builders used the most.

Marvin Windows and Doors and This Old House team up

Encore Please: We're Joining This Old House for their Most Innovative Season Yet

Designing for the Future

Once again, we’re sponsoring the This Old House crew as they spend the fall renovating an 1879 Newton, Mass. home to meet the multigenerational needs of a modern family. Coming up this spring, Marvin Windows and Doors will help revive an additional historical home in Charleston, SC.

Supporting "Generation Next”

We’re joining This Old House in their quest to close the skills gap by encouraging young people to pursue a hands-on career. For the first time, our sponsored seasons will feature young apprentices getting a once-in-a-lifetime chance to learn the craft – the right way – and become part of an amazing tradition.

The Advantages of Working with a Marvin Dealer
The advantages of working with a Marvin Dealer

Whether you're building a new home, remodeling or making home improvements, we understand that choosing windows and doors can be a big decision. Our Marvin experts will walk you through the options - including energy-efficient glazing, hardware finishes, clad colors and other design features. We'll be there to answer your questions and help you make the right choices for your project.

Integrity Windows and Doors 20 Years Promo

20+ Years of Residential Remodeling and Replacement Experience


Every remodeling project has its own unique requirements and Integrity is equipped to meet those challenges. Two distinctive series, All Ultrex® and Wood-Ultrex®, provide an abundance of sizing, performance, and configuration capabilities to meet your needs. The Ultrex material pioneered by Marvin Windows and Doors, combines proprietary pultruded fiberglass and finish technologies that deliver proven energy efficiency and sustainable performance advantages. Our experts can guide you through even the toughest projects.

Marvin Windows and Doors - Tradition that never goes out of style

Tradition that Never Goes out of Style

The double hung window has been a prominent feature in American architecture for centuries. At Marvin®, it is part of our heritage of providing industry-leading products, and quality windows and doors for the American home. We are proud to make an American classic, handcrafted in America. With advancements in engineering the Marvin Ultimate Double Hung window now integrates a classic look with state-of-the-art durability, versatility and ease of use. Smooth operation, tilt-in convenience and extensive size, shape, and finish options make this the perfect window for remodeling, replacement, historic renovation or new construction projects.

Wide Open Possibilities with Scenic Doors from Marvin

Wide Open Possibilities

There's a magnificent vista on the horizon. You want to knock down a wall to turn an ordinary room into an extraordinary one and redefine your family room to include indoor and outdoor living spaces. And after all that, you don't want anything to stand between you and your view. That's why Marvin designed a line of Scenic Doors. The Ultimate Lift and Slide and Bi-Fold doors are available in stunningly large sizes and numerous panel configurations, they allow for a seamless transition from the exterior to the interior of your home. Marvin's industry-exclusive hardware virtually disappears, giving you an incredibly clean and unobstructed view with simple, effortless operation.