AHT Wisconsin Windows

Business Details

50+ Years

experience

Trusted Replacement Windows & Doors in Wisconsin

AHT Wisconsin Windows has been a family-owned and -operated home improvement company since 1967, dedicated to enhancing Wisconsin homes with durable, energy-efficient replacement windows and doors. Our proprietary composite frame technology, 400% stronger than vinyl, combined with triple-pane insulation, delivers unmatched durability and energy savings, earning us recognition as ENERGY STARs most efficient windows. With in-house installation teams and a 50-year non-prorated warranty, we ensure precision and reliability, serving communities across Madison, Green Bay, Appleton, and surrounding areas.

Our commitment to quality extends to custom solutions for entry doors, patio doors, and storm doors, all backed by decades of local expertise. We prioritize customer satisfaction through transparent consultations, low-payment financing options, and a proven track record of reducing energy bills while improving home comfort and value.

Services

Replacement Windows Entry Doors Sliding Glass Doors Storm Doors Triple Pane Windows Composite Windows Custom Windows Patio Doors Egress Windows Door Installation

Details

Year established: 1967

Highlights and features

Family-owned since 1967 with deep local expertise in Wisconsin weather challenges.
Proprietary composite frames 400% stronger than vinyl for unmatched durability.
50-year non-prorated warranties on both products and installation workmanship.
In-house installation teams ensure precision and accountability.
ENERGY STAR-rated windows reduce energy bills by minimizing heat transfer.

What people say

Looks great Efficient installation No draft Professional crew Energy savings

Website

Update Listing

Services

Replacement Windows

Our composite replacement windows feature triple-pane insulation and low-E coatings to drastically reduce energy loss. Designed for Wisconsins climate, they resist warping and cracking while requiring minimal maintenance. Homeowners enjoy quieter interiors and lower heating and cooling costs.

Entry Doors

Custom entry doors combine 22-gauge steel or fiberglass construction with compression seals for superior energy efficiency. Adjustable hinges and sills ensure a perfect fit, enhancing curb appeal while protecting against air leaks and weather damage.

Sliding Glass Doors

Sliding glass patio doors offer robust insulation and durability for Wisconsins climate. Their reinforced frames and triple-pane glass provide security and energy savings, seamlessly blending indoor and outdoor living spaces with unobstructed views.

Storm Doors

Heavy-duty storm doors add an extra layer of protection against harsh weather. Constructed from thick, reinforced materials, they improve energy efficiency while preserving the longevity of entry doors without compromising aesthetics.

Triple Pane Windows

Triple-pane windows feature two low-E coatings and gas-filled chambers to minimize heat transfer. These windows reduce condensation and noise, offering year-round comfort and significant energy savings for Wisconsin homeowners.

Questions

Do you offer financing options for window and door replacements?

Yes, we provide low-payment financing to make home improvements affordable for Wisconsin homeowners.

Are your windows and doors energy-efficient?

Our composite windows and triple-pane technology are ENERGY STAR-rated for maximum energy efficiency.

Do you install windows and doors in surrounding Wisconsin areas?

We serve Madison, Green Bay, Appleton, Clintonville, and nearby communities across Wisconsin.

Can I install AHT windows myself?

No, professional installation is required to maintain warranties and ensure optimal performance.

What warranties do you provide?

We offer a 50-year workmanship warranty and a 10-year glass breakage warranty.

Do you use subcontractors for installations?

No, our in-house team of factory-trained installers ensures quality and accountability.

Videos

Reviews (6)

Write a Review

C. Zeinert

Sep 30, 2021 Report

Positive:Quality,Value
Anissa was very friendly and infomative! She did a good job with her sales tactic as we will be getting a new patio door!
Service:Door installation

Josephine Holman

Jun 05, 2021 Report

Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Craig was amazing at his presentation! Very professional and very kind! We love the time he spent explaining their processes! We absolutely excited about our purchase!
Service:Door installation

Donna Macleish

May 31, 2021 Report

Positive:Professionalism,Punctuality,Quality
Energy efficient, warranty salesman with great personality and informative.
Service:Window installation

Molly Swanhorst

May 26, 2021 Report

We had one set of our windows replaced about a year ago and loved them so much we went back for the rest of our replacements! Scott is wonderful, and the installers are fast and professional.

Chris O'Neal

May 22, 2021 Report

Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Really like the ease of operation, energy efficiency and they look good
Services:Door installation,Window installation

Jackie B.

Apr 08, 2021 Report

We made a mistake signing up for their drawing at the Home show in Green Bay For free window. They called to verify information and tried to set up an appointment. We Advised them we were not interested at this point as we are not ready to start this project. They called again and on 3 calls we told them you already called us and we told you we are not interested. They Continued to call us every day for a few weeks leaving messages To call them back, Until we finally had to block their number. They would not leave us alone. If they are this pushy now there's no way we'd have them come