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Window Installation


  • All MARVIN windows purchased by A Custom To, LLC come from our authorized dealer which allows us to pass along a limited warranty directly through the manufacturer. A Custom To, LLC installs windows throughout the greater Milwaukee area.
  • All Crystal extruded vinyl window sashes and main frames are warranteed against cracking, peeling, flaking, blistering, or corroding. Glass is warranteed against hermetic seal failures and stress cracks. This is a 100% replacement cost the first 20 years during the original purchaser’s ownership and 50% the next 20+ years after.
  • Viewpoint 3000 Vinyl Replacement Windows are energy-efficient, low-maintenance and surprisingly affordable. Replacement Windows come with a standard Lifetime Limited Warranty and a Lifetime Warranty against glass breakage.
  • Velux skylights are designed for Residential applications and come in a variety of shapes and sizes. They provide a 10 year product and installation “No Leak” warranty with a 20 year glass replacement warranty.
  • LARSON storm windows are available in a wide variety of styles and colors and are made of 100% aluminum metal.
  • ALSCO and Mastic (Trim Coil) brand products come with a Lifetime Limited warranty.
  • We also offer other brand name products, at no additional cost, which allows us to offer a large variety of trim colors for you to choose from.
  • All new work is backed by 10 year craftsmanship warranties.


  • All size windows to meet your needs. Brand names include MARVIN, Crystal, Skyline & more.
  • Specialty Windows by MARVIN. Styles include windows with arches, specialty grid options, specialty window styles & more.


Our Exterior Repair Team is ready to work on your residential project today. Our expertise includes all window repairs, siding repairs, trim and wrap repairs, roofing repairs & much more.
Take a look at some of our finished window installations and then call us today! (414) 376-5568 


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