New Windows for Your Greenville Home

residents in Greenville deserve windows that do more than just style good. AHT Wisconsin Windows delivers thermally efficient window replacements that improve home comfort, slash utility bills, and handle the full range of Midwest weather extremes with ease.

Our team works with residents in Greenville to find the right fit, whether that means a full window replacement, a single entry door upgrade, or a combination of both. Every product we offer is designed to withstand everything from blizzards to heat waves.

Trusted Window Replacement in Greenville

There’s more to window replacement than curb appeal. Replacing old windows can recapture up to 30%% of the energy your home currently wastes. For Greenville, WI, that means upgrading to modern, thermally efficient windows is one of the most cost-effective home improvements available.

For Greenville homes, our windows provide:

Noise reduction for a quieter living space
Built to last construction with minimal maintenance requirements
UV protection to protect your interior furnishings from fading
Custom sizing available for older and non-standard Greenville homes

Over 55 Years of Trusted Service

AHT Wisconsin Windows has been helping residents since 1967. Over 12,000 satisfied customers later, our commitment to top-tier craftsmanship and dependable service remains as strong as ever.

Greenville customers also benefit from:

A 50-year warranty on door seals
A 50-year transferable, non-prorated warranty on components and workmanship

Upgrade Your Greenville Entry Door

A high-quality entry door makes a big difference in energy savings, security, and street presence. AHT Wisconsin Windows serves Greenville with fiberglass and steel entry doors, front doors, and storm doors built to perform through freezing temperatures and humid summer heat.

What makes our Signature Series entry doors stand out:

Significantly reduced air infiltration and water leak protection
Exceptional toughness in extreme temperature swings
Custom finishes and upgraded hardware options to match your home’s style
Professional installation by experienced Greenville-area technicians

Greenville homeowners can count on our 50-year transferable, non-prorated manufacturer’s warranty for complete peace of mind.

Upgrade Your Greenville Patio Door

Homeowners don’t have to sacrifice style for performance. Our replacement patio doors and sliding glass doors are engineered for energy efficiency, security, and effortless operation, all while enhancing the look of your home.

Our patio doors feature:

Warm-edge insulation technology to maximize energy efficiency
Multi-point locking systems with single-lever operation for easy, secure access
Weather-stripping designed to block drafts and moisture
Step locks for added security when doors are closed or partially open
Monorail sliding systems with top and bottom rollers for easy operation

Recent Window Replacement Projects Near Greenville

A look at recent window and door replacements we've completed for homeowners in the area.

3 photos

Peterson in Neenah, WI

Neenah May 2026

5 windows as well as a 2-lite slider

Installed 5 windows where we converted a double hung and a casement (crank-out) both into much wider 2 lite sliders complete with new headers for each. The other 3 windows were…

4 photos

Bohl in Appleton

Appleton June 2026

8 double-hung and picture windows as well as a patio door

In Appleton we installed four double hungs, two picture windows, two pentagon windows and a patio door. The windows went in as a standard install, however while removing the old…

Jacobson in Appleton, WI

Appleton May 2026

1 bay window

Installed a bay window today in Appleton WI. These windows featured our Dark Oak Woodgrain on the inside that brings the rich look of wood without the maintenance. It was…