Infinity by Marvin for London OntarioInfinity from Marvin® is a line of fiberglass replacement windows and patio doors designed by the experts at Marvin Windows and Doors and installed by the experts at Lakeshore Windows and Doors. Created for the London Ontario homeowner who wants low-maintenance, high energy efficiency and traditional beauty, all Marvin Infinity window products are sold by Lakeshore Windows and Doors as a complete, installed package to provide you with a high-quality, hassle-free experience.

Watch videos to learn more about the Infinity by Marvin Window line


Make the Smart Window Replacement Choice London Ontario

London Ontario homeowners when considering fiberglass window replacement, you’re demonstrating the total pride and commitment to the investment you made in your home. As you research fiberglass window products available to London Ontario residents, consider the following to make the right window choice:

Installation Experience

Infinity Windows by MarvinLondon Ontario homeowners choose a brand recognized as a leader. Infinity products represent nearly a century of innovation and uncompromising performance — the legacy of Marvin Windows and Doors.

Your Home’s Curb Appeal and Appearance

Infinity Replacement Windows by MarvinLondon Ontario residents choose replacement windows and doors made in custom sizes with options and features that meet your expectations. Infinity from Marvin’s thoughtful designs, appearance, and options allow you to match the style of your home.

Built for Longevity

Infinity Fiberglass Windows London OntarioLondon Ontario residents choose windows and doors that are durable and will stay weathertight. Infinity products are made from patented Ultrex® pultruded fiberglass. Ultrex is so much stronger and superior than other materials, we back our products with a limited lifetime warranty.

Ultrex is as strong as low carbon steel and 8x stronger than vinyl. It’s so tough we have to use diamond-edge blades just to cut it to size. The strength of Ultrex translates into superior stability, long-term ease of operation, low-maintenance, and superior performance

Vinyl Replacement Windows London OntarioFiberglass Replacement Windows London Ontario

Advantages of Ultrex fiberglass windows for London Ontario Homeowners

  • Low maintenance
  • Base material is silica sand — an abundant natural resource
  • Intricate profiles replicate the look of traditional wood windows
  • Low expansion provides easy operation for the life of the window
  • Strength keeps windows square and true
  • Narrow profiles allow for more visible glass area and expanded views
  • Long-term stability reduces the risk of seal failures and air leakage through the window
  • Patented, mechanically bonded inline acrylic finish is up to 3x thicker than competitive finishes, providing superior resistance to discoloring, scratching, and denting
  • Ultrex fiberglass is 8x stronger than vinyl and one square inch can support 34,000 pounds!*
  • Fiberglass windows have a 38% longer useful life expectancy than vinyl.**
  • Infinity windows with LoĒ glazing can reduce your heating and cooling bills by up to 30%.***