Okna 500 Windows Reviews

The Okna 500 window, also known as the Insul-Tec Series is the mid range vinyl window option from Okna and can be ordered as a double hung, single hung, picture, slider, or hopper window. It is also available as a replacement or in a new construction set up. The Okna Insul-Tec window is one of my top selections for best long term value window.

The 500 offers several improvements over the entry level Okna 400 window, including an improved sill wall, spacer and several additional features and upgrades. The result is a better looking and performing window from the 400 model.

Standard features include a 3¾" depth mainframe, beveled colonial frame, optional auto-lock, Heatseal spacer , full integral interlock, fiberglass mesh half screen, double weather-stripping, and fully extruded sash handles.

The 500 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 - 2015

Okna 500 Window Prices

Consumers can expect the Okna 500 window costs to run approximately $55 to $65 per square foot for the window itself. Comparably priced windows include Soft Lite Pro pricing and Kensington windows prices.

-- Window Itself: $55 to $65 per square foot --

» More On Okna 500 Costs

Okna 500 Windows Ratings

The Okna 500 window with foam fill insulation, argon gas and low-e glass will deliver a .25 U-value, .30 SHGC, .54 VT, DP50 rating and .02 air infiltration.

Upgrading to the Deluxe package will lower the U-factor to as low as .18. These are excellent numbers, all of which are available on the nfrc.org website, which provides testing for hundreds of window and door companies.

Okna 500 Windows Warranty

The Okna 500 carries the same warranty as the Okna 800 Enviro-Star, including a lifetime on all vinyl such as the mainframe, sash and all components. The IGU or insulated glass unit is covered for the original homeowner's lifetime, as is all hardware. (The IGU on homes located near the east coast are covered for 10 years). Factory paint colors are cover for 10 years from the date of purchase.

The Okna 500 warranty is fully transferable. There are a number of exclusions that apply to this warranty so we would recommend that consumers read the single page document in full prior to buying their windows.

Okna 500 Windows Reviews

Do you have an Okna 500 Insul-Tec window review to share? Let others know about your experiences with this window, regardless if they were good or not so good.

Questions for our site experts? Jim and John can answer all of your toughest replacement window questions and queries and help you get the best deal possible.

Reliabilt 3900 vs Okna Insultec

After many weeks of researching replacent vinyl windows, I've narrowed my choices to the Okna 500 Insul-Tec series, Reliabilit 3500 series and 3900 series. We're replacing 19 windows. The Okna and Reliabilt 3900's are only $400 apart. However the 3500's are 3K less.

Mark - January, 2016

Site Editor's Reply

Mark, I would say go with Okna Insultec, it's probably my number one pick for best valued vinyl window out there. Reliabilt windows are the best of the "retail windows" - i.e. windows that consumers can buy off the shelf at HD or Lowes, but I've never heard any contractor claim that Reliabilt is a first tier window manufacturer (Reliabilt doesn't even make their own windows, they are simply a relabeled Atrium window.)

Unless the $3K is just too good to pass up, I'd say the Okna is the clear winner.

Jim R. - January, 2016