Okna 400 Windows Reviews

The Okna 400 window, also known as the Precision Weld Series, is the economy vinyl window option from Okna. The 400 Precision Weld model can be ordered as a double hung, picture, slider, or hopper window. It is also available as a replacement or in a new construction set up. The Precision Weld is one of our top selections for the best cheap replacement window currently available on the market.

The Okna 400 Precision Weld includes standard features such as a fusion welded frame, 3.25" depth frame, a Heatseal spacer, a full integral interlock, double weatherstripping and fully extruded sash handles.

In terms of color options, the 400 model can be ordered in an interior white, almond or cocoa. On the exterior, it comes in white, brown, bronze, cocoa, sandstone, almond, as well as a number of additional custom colors. Hardware comes in the three interior frame colors.

Review By John M. - Site Editor - Updated In 2023

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Okna 400 Window Pricing

Consumers can expect Okna 400 window prices to run $500 to $800 fully installed. (Please note: this is ballpark pricing only. The only way to truly know the fair market price of your replacement window project is to collect local bids.) Comparably priced windows include Sunrise window prices and Polaris Thermalweld costs.

-- Installation: $100 to $300 per opening --

-- Fully Installed: $500 to $800 -- *

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Okna 400 Windows Ratings

The Okna 400 window with foam fill insulation, argon gas and low-e glass will deliver a .28 U-value, .30 SHGC, .54 VT, DP45 rating and .07 air infiltration.

Upgrading to the Deluxe package will lower the U-factor to as low as .22. These are good numbers for an economy level window, all of which are available on the nfrc.org website, which provides testing for hundreds of window and door companies.

Okna 400 Windows Warranty

The Okna 400 window series comes with a limited lifetime warranty and that includes all of the components, sash and mainframe. And insulated glass unit also carries this original homeowner lifetime provision as does all of the hardware on the vinyl window. However, homes located on the east coast are only covered for 10 years on both the IG you and factory paint colors.

One nice thing is that the Oak now 400 window warranty is completely transferable, although there are a number of exclusions and limitations that apply. This is one reason why we suggest that consumers read this document in full prior to purchasing their windows.

Okna 400 Windows Reviews

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