Fort Collins Window Replacement, From Old Town to Harmony

Fort Collins Has Great Homes with Old Windows

Fort Collins grew in rings: Old Town originals from the early 1900s, mid-century blocks around City Park, the 80s and 90s spread through Midtown, and newer builds out toward Harmony and Timnath. Every ring has the same problem at a different age: windows that were fine for their decade and are not fine for Larimer County winters, canyon winds, and high-plains sun today.

Ameritech has replaced windows across northern Colorado since 1994, over 100,000 installed. Custom hybrid vinyl and composite frames, built to each opening, with triple-pane glass at the price most companies charge for double.

Why Fort Collins Homeowners Choose Ameritech

• Custom built to the opening. Essential in older homes where no two windows measure the same, and the reason the character of an Old Town house survives a window project.
• Triple pane where winter is longest. Northern Colorado gets the coldest stretch on the Front Range; the third pane earns its keep here.
• 2026 energy code handled. HB 23-1161 requires U-factor 0.30 or better; ours clear it and we handle the paperwork. Our energy code guide has the details.
• 4.7 stars across 900+ Google reviews and a lifetime warranty. See our reviews.

Every Style, Every Era of Home

Double-hungs that keep a craftsman looking right, casements for kitchen reaches, bays and bows, egress for basement bedrooms, and specialty shapes. Browse window types or the full product story.

Serving Northern Colorado

Fort Collins, Loveland, Windsor, Wellington, Timnath, Laporte, and Greeley. Full service area here.

What Do Replacement Windows Cost in Fort Collins?

Count, sizes, and glass package set the price, and older homes sometimes add prep work worth pricing honestly up front. That is why we quote in person, free, with a firm price that holds and financing available.

How It Works

1. Free in-home quote. We measure every opening, you choose styles and glass, you get a firm number.
2. Custom build to your exact openings.
3. Professional installation, most homes in one to two days, year-round.
4. Lifetime warranty, registered and backed locally.

Fort Collins Questions

Can you replace windows in an older Old Town home?

Yes, and we do it a lot. Every window is custom built to the existing opening, so original openings, weights-and-pulleys frames, and non-standard sizes are normal work for us, and the look of the house stays intact.

How long does window replacement take in Fort Collins?

Most homes are completed in one to two days once your custom windows arrive.

Do your windows meet the 2026 Colorado energy code?

Yes. Our windows meet or exceed the U-factor 0.30 requirement (Colorado HB 23-1161) that applies to replacement windows in Larimer County jurisdictions.

Is triple pane overkill for Fort Collins?

The opposite. Northern Colorado winters are the longest on the Front Range, and the third pane is the difference between a window seat you avoid in January and one you use.

How do I get a price?

Call (303) 444-1998 or use the quote form on this page. The in-home visit and the quote are free.