Alpen Windows Reviews

Alpen Windows is a fiberglass window and door manufacturer that has been in business since 1981 (although their story is quite a ride). The company specializes in ultra high energy fiberglass windows and doors that are very well built and quite expensive. Browse below for all of our Alpen Windows reviews.

Company Rating: 8.5 out of 10

Price Point: 9.0 out of 10

Replace Your Window Starter Guide

Questions? We’ve got you covered – Bill – Site Editor


Alpen Windows Reviews

Alpen Windows Reviews

Alpen made windows and doors from 1981 too 2008, at which time Serious Materials bought the company. Unfortunately, just four years later, Serious Windows had to declare bankrupt. Alpen HPP then bought their assets out of bankruptcy and has been making highly efficient fiberglass windows and patio sliding doors ever since. The company is widely regarded as one of the best fiberglass windows on the market today.

Alpen HPP has thtree main residential series – Zenith, Tyrol, and winSert. The Zenith is available in the ZR-3 (U-vaue .26), ZR-5 (U-value .17), ZR-6  the improved (525 Series), ZR-9, and ZR-10. The Tyrol Series is available in either the TR-6 or TR-9. The company also offers their Winsert replacement windows and their Aspekt+ passive house windows and doors.


Alpen Windows Dealers

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Alpen Cost Estimator

Polaris Windows Pricing ValuSmart Series: $750 installed

Simonton Window Pricing 6500 Series: $825 installed

Harvey Window Prices Classic Series: $875 installed

Anlin Windows Price List Catalina Series: $900 installed

Okna Windows Cost 700 Series: $950 installed

Alpen Windows Cost: Zenith Series: $1600 installed

PGT Windows Prices WinGuard Series: $1800 installed


Alpen Windows Reviews

Hi Dane, thanks for the information. Do you have any recommended installers in the Washington D.C / Baltimore area? I’ve reached out to Windows on Washington and several other local companies, but if you know of any highly reputable companies, I would appreciate your insight. I had heard about Alpen windows, but I’m not sure they are available in this area.

John – Homeowner – from 2024

Editor Reply

John, nothing specific, but definitely look up Ideal Windows and see if you can get a bid from a local Ideal dealer. Alpen Windows is based out of Louisville, but I agree that they are probably not available in the area.

Bill – Site Editor – from 2024


Alpen Windows Dealers

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