Replacement Windows Wausau

When homeowners in Wausau, Wisconsin and surrounding areas are in need of a window replacement company, they choose AHT Wisconsin Windows. Whether you are building new construction or just looking at making your home more energy-efficient, our replacement windows and doors are durable, energy-efficient and customizable. We are proud to say our replacement doors and windows are built “frozen tundra tested tuff” and can withstand brutally cold temperatures, snow, ice, and help keep the inside of your home at a comfortable temperature year round. Contact us today; we are looking forward to serving you with excellence as we have more than 12,000 homeowners.

Local Window Replacement Company Wausau

We understand the homeowner’s frustration with high heating and cooling bills. With windows in the home accounting for 30% of your home’s heating and cooling energy loss, it is essential to install energy-efficient replacement windows in Wausau. We are proud to offer the most innovative, energy-efficient replacement windows available on the market today. Features of our replacement windows include:

  • Insulates 214% better than hollow rigid vinyl windows
  • Insulates 62% better than wood windows
  • Will not rot, chip or fade
  • Resists insects, molds, mildew, and fungus
  • Surface hardness and screw holding power is superior to pine
  • Carries UL-VO-94 fire rating – The Best!
  • Passed salt-water exposure of 1,000 hours
  • Expansion / Contraction rate is well below rigid vinyl
  • Durable 3-1/4″ master frame and welded corners deliver years of strength and beauty
  • Warm edge spacer system provides additional insulation value
  • Low-E glass package virtually eliminates heat convection
  • Triple weather stripping and full depth interlock on sashes virtually eliminate drafts
  • Full slope sills for a classic window look
  • Sound absorbent materials for peace and quiet
  • Tilt-in sashes allow for easy cleaning from inside your home. No ladders needed.
  • High-security ventilation locks help protect your family and home.
  • Maintenance-free for years of value and enjoyment

Entry Doors Wausau

When you need to replace an entry door, AHT Wisconsin Windows has energy-efficient exterior doors that will help keep your home in Wausau warm and comfortable during our Wisconsin winters. We have a wide selection of replacement exterior doors, front doors, fiberglass entry doors, storm doors or entry doors. Our replacement front doors are:

    • Available in steel or fiberglass construction
    • ENERGY STAR qualified home improvement products
    • Offered in multiple different style collections, a wide selection that gives you the opportunity to choose front doors that suit the look and architectural character of your home in the Wausau area
    • Completely customizable, thanks to options like decorative glass, a wide range of finishes, and upgraded hardware


For new sliding glass doors that will enhance the beauty of your home in Wausau, the name to trust is AHT Wisconsin Windows. We are proud to offer Wausau and surrounding areas with the most durable and energy-efficient sliding glass doors and replacement patio doors on the market today.

Some features of our sliding glass doors are: steel reinforced for security and structural integrity, multiple-point locks with single-lever operation for increased security, monorail gliding system for easy operation, warm-edge insulated glass for incredible energy efficiency, and feature triple-pane glass packs with Low-E coatings and proprietary gas fills, which helps reduce heat transference and keeps the inside of your home feeling more comfortable throughout the year.

At AHT Wisconsin Windows, not only do we offer outstanding energy-efficient replacement windows, exterior doors, storm doors and sliding glass doors, but we also provide customer service that is second to none. Contact AHT Wisconsin Windows today for more information about replacement windows, replacement doors or replacement sliding glass doors that we install at homes in Wausau, Edgar, Mosinee, Wittenberg, Birnamwood, Marathon, Rothschild, Schofield, Tigerton, Shawano, Bonduel, Stevens Point, Wisconsin Rapids, Plover, Amherst and all nearby communities in Wisconsin. Proud to serve the following zip codes with all of their window and door needs – 54401, 54403, 54426 ,54455, 54448, 54474, 54476, 54499, 54414, 54486, 54166, 54107, 54481, 54494, 54495, 54467, 54406