Alpen Windows Prices
Explore Alpen Windows prices from this Colorado-based window manufacturer. Alpen High Performance Products manufactures highly energy efficient windows and doors for commercial and residential purposes. The company has gone through a few ownership hiccups, but has been pretty solid since 2012.
The company makes two lines of windows, the Zenith and Tyrol Series. The Zenith series is a fiberglass window that is available in 5 different model options, all of which get impressive performance data. The Tyrol Series is a vinyl window that comes in 3 different model options, as well as an optional PH+ foam upgrade.
In general, Allen HPP manufacturers windows that are going to be on the high end of the price range, but also very well made and incredibly energy efficient.
Review By John M. - Site Editor - Updated In 2024
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Alpen Windows Prices
Consumers can expect Alpen HPP windows to run 8 to 9 out of 10 when compared with other fiberglass window manufacturers. Comparable windows include the Marvin Infinity and the Inline fiberglass windows.
Guessing at exact pricing for new construction and replacement windows is tricky business, for two main reasons. One, window companies are able to bid out projects at any price they want. Some throw out very high prices initially, just to see if consumers will sign the work orders then and there. Two, there are so many factors that go into pricing that it is nearly impossible to throw out a one-size-fits-all price for homes that may be older, window configurations that may be more complex or simply larger.
This is why we always tell homeowners to collect multiple bids prior to signing any work orders. This allows you to compare prices and to find the best window for your situation.
Alpen HPP Window Ratings
The Alpen Zenith Series is divided up into 5 different product lines, including the ZR-5 of 525, ZR-6 or 626, ZR-7 or 725, ZR-9 0r 925, and the ZR-10 or 1025 series. For instance, the "contractor" horizontal slider model of the Zenith 525 has a DP70, U-0.17, and VT of .43 and air infiltration of .07. Those are really really solid numbers for a builder grade product. In fact, many window manufacturers would like those numbers for their premium models.
The Tyrol series is divided up into the T6, T7, and T9 models. There is an optional upgrade to any of these called the PH+, which is a high end foam insulation on the main frame. The T6 tilt/turn model, for instance, delivers a .18 U-factor, .35 SHGC, .48 VT and a .03 AI. Impressive.

Alpen HPP Warranty
The windows and doors come with a limited lifetime warranty for the original owner. It only applies to subsequent owners for a period of 10 years. The warranty does not include any provisions for the cost of reinstallation should a problem arise.
All in all, not the best warranty out there. Seems a bit skimpy to me, especially for fiberglass and vinyl windows that seem to be well made.

Alpen Window Reviews
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Alpen Fiberglass Triple Pane Windows
I have a bid on Alpen fiberglass triple pane windows. Any experience or knowledge on these windows out of Louisville, CO? Click for triple pane windows cost information and consumer pricing.
Dickie - Homeowner - January, 2023
Website Editor's Answer
Dickie, Alpen windows make an EXCELLENT fiberglass window. One of the best in the business. Ironically, I hear about them very infrequently, but you should definitely get a bid as they are a quality company.
Editor John - January, 2023
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