HiMark 400 Windows Reviews

The HiMark 400 window series is the entry level vinyl window in this somewhat exclusive line of windows. HiMark is an Okna window series that is sold through a somewhat more exclusive list of dealers, and the installation is done by factory trained installer (and must be installed by these Okna trained teams.)

The 400 series uses a slightly more narrow frame than the upgraded HiMark 500 series, which provides for more glass area, but at the cost of a bit of durability in the extrusion and a slight decrease in the overall energy efficiency of the window. The 400 HiMark has a few other very subtle differences, including weatherstripping and a couple little differences in available components and hardware options.

Consumers can expect good energy efficiency, especially with the DX model; .28 U-value, .30 SHGC and .05 air infiltration. In general, the HiMark 400 window is considered a good quality vinyl window that is on par with many manufacturers mid range to even premium offerings.
The HiMark 400 Window Series gets a 4.3 out of 5 star rating.

Review By Jim R. - Site Editor - Updated In 2023

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HiMark 400 Windows Costs

Consumers can expect the HiMark 400 replacement window cost to run approximately $50 - $60 per square foot for the window itself. Comparable windows include Okna 400 windows prices and Soft-Lite Classic window cost.

-- Window Itself: $50 to $60 per square foot --

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HiMark 400 Window Ratings

The HiMark 400 window with the foam fill insulation, low-e glass and argon fills will deliver the following performance numbers: .28 U-value, .30 SHGC, DP45, .54 VT, and .07 air infiltration.

If you opt for the Deluxe package upgrade, you can expect the the U-factor to low to .22. These are excellent numbers for an "entry level" window, comparable to many other manufacturer's premium vinyl window offerings.

HiMark 400 Window Warrranty

The HiMark 400 window comes with a limited lifetime warranty that applies to the vinyl sash and mainframe, the hardware, as well as all of the components on the window. This is one of the better warranties in the industry and includes a transferable clause to a subsequent homeowner.

As with any vinyl window warranty, homeowners need to make sure to read the warranty in its entirety prior to purchase to make sure they understand all of the exclusions and limitations that may apply.

HiMark 400 Reviews Or Question

Do you have questions about the HiMark 400 series replacement window? If so, our site editors are here to answer any questions you may have.

Have you purchased the HiMark 400 series window and have a review to post online? Reviews are an excellent way for other consumers to better understand the pros and cons of the specific vinyl window.