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Interstate Windows Reviews

Read 10 Interstate windows reviews to find out what contractors, consumers and industry professionals think about this North Carolina company and their composite and vinyl windows.

Have a question for our site editors, Dane and Tim? Email them and let them answer your specific project questions. Make sure to include your email address so they can get back to you directly (we never use or sell your email, we promise.)

Please note, our website is not affiliated with this window manufacturer.

6800 Series | 8300 Series

Compositwood 9800 Series | Insight Series | General Reviews


Interstate Window and Door Statement

Dane and Tim,

Hi my name is Nick Genovese. I am a customer service representative for Interstate Window and Door. Thank you for reviewing our website and giving your thoughts on our product from what you can see online.

We manufacture high performance vinyl and composite vinyl windows for both Residential and Commercial applications. The most recognizable Landmark that our windows are installed in is the Statue of Liberty. If you have any questions or anything I can help you out with please let me know. Thank You.

For other forms, brochures and general information it can all be found at https://www.interstatebldg.com/support-library/

Nick - Homeowner - from 2018

[Site Editor's Answer]

Nick, we will be sure to update the Interstate Windows review page with your statement.

If you have any energy and performance data on your individual windows you would like to share, we are always trying to provide consumers with as much information as possible.

I took a look at the support library. Great place for consumers information on your windows: lots of performance info, warranty info, etc. Good stuff for potetnial customers. Thanks.

Dane - Site Editor - from 2018



Interstate 6800 Windows Reviews


Interstate 6800 Windows Cost

I have a series of 18 double hung windows that need replacing. Here are my bids, I've gotten quite a few.

Polaris Ultraweld Model: $450 per window
Interstate 6800 Model: $500 per window
Okna 600 Model: $555 per window
Vytex Fortis Model: $600 per window
Soft lite Pro Model: $600 per window

Nick - Homeowner - from 2020

[Site Editor's Answer]

Nick, you have some really awesome per window pricing there. The Polaris Ultraweld is one of the best per window price I've seen, tough to get away from that.

Tim - Site Editor - from 2020


Interstate Insight 6800 Price Bid

I have six windows, all double hungs, all standard sizes, with no grids. I live near Atlanta and would love your take.

Sunrise Essential: $650 per
Great Lakes Comfort: $450 per
Okna 600: $600 per
Interstate Insight 6800: $470 per
Zen Nirvana: $675 per

Rohan - Homeowner - from 2019

[Site Editor's Answer]

Rohan, my picks would go Great Lakes, Okna 600, then the Interstate option.

Tim - Site Editor - from 2019






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Interstate 8300 Reviews


Interstate 8300 vs. Great Lakes

I know you had mentioned there is not much information about interstate windows but their efficiency seems better than great lakes without much cost difference.

Great Lakes Comfort Smart: U factor: 0.3, SHGC:0.2
Interstate 8300: U factor: 0.26, SHGC:0.21, Air leak 0.05cfm/ft2

Any thoughts on interstate?

Rohan - Homeowner - from 2019

[Site Editor's Answer]

Rohan, as I said I know very little about Interstate. I'm not as impressed with the U-factor difference, but I must say the air leakage on the Interstate of .05 is impressive. If that's with their standard double hung window, then I'd say go for it. Sometimes companies can use different tricky methods to achieve their performance data.

Tim - Site Editor - from 2019






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Interstate Compositwood 9800 Reviews


Interstate Compositwood 9800 vs. ViWinco Cambridge

Dane, I'm replacing 30 windows in a home on the Chesapeake bay, Sunrise and Softlite do not cover the eastern shore of Maryland or Virginia, the local installer recommends Interstate Compositwood 9800 with double pane low e on both panes @ $19,100 or Interstate Insight Vinyl 6800 double pane low e for $17,700. Do you have any recommendations or knowledge on these windows?

Another contractor is quoting ViWinco Cambridge, but after reading your reviews, I have since ruled them out.

Wayne - Homeowner - from 2018

[Site Editor's Answer]

Wayne, I hear very little about Interstate windows. I took a look at their website and they seemed quite credible, but I can't vouch for the quality of the windows they make. I would definitely stick with the higher end Compositwood 9800 if you do go with them. I would think that at least Okna would be available in your area. I'd love to see a comparison quote from them own the 500 or 800 series from them. I would think they would be similarly priced and Okna has a great reputation in the industry. I think you are right to rule out the ViWinco Cambridge, it is a subpar window compared to the two mentioned above.

Are you sure Sunrise and Softlite don't cover the Chesapeake? I found a couple of links to possible dealers in your area.

Tim - Site Editor - from 2018

[Wayne's Reply]

I have a request to Okna on availability here, haven't received a reply yet, I like what I'm reading about the Okna 800, I am looking for a very good or top quality window. I did speak to a Sunrise rep yesterday, he didn't think the See Thru Window company out of Waldorf, Md. would travel that far but is passing my info to them.

SoftLite is trying to use an installation contractor to sell their windows on the eastern shore of Maryland, but he is a very small company from eastern shore Virginia and has never installed their windows, I'm a little leery of him, reminds me a a used car dealer, he did quote the SoftLite LS at $20,000, it didn't sound like a bad price, 75% of the windows are 36" x 72", some larger, some smaller.

Wayne - Homeowner - from 2018

[Site Editor's Answer]

Keep me in the loop on the Okna 800 price. It seems odd that Sunrise doesn't have a presence in your area, but see if the See Thru wants the business and will give you a bid.

I agree with you on both points on the Soft-Lite dealer. If he sounds like a used car dealer, he probably operates his business that way. What happens if something goes wrong in ordering etc.? You're out of luck.

I also agree that the Imperial LS for $20K is a great price. Tough to beat that window...

Tim - Site Editor - from 2018


Interstate Replacement Windows

I am looking for replacement window and had a sales rep come by today, He has Interstate windows, both vinyl and composite. He made a very good sales pitch for this brand, with a lifetime guarantee. But this brand is not listed in the ones you reviewed, even though they have been in business since 1983. Do you know anything about this brand and would you recommend it?

Linda - Homeowner - from 2017

[Site Editor's Answer]

Linda, I don't know a ton about Interstate windows. I looked on what I believe is their website and found some performance data that is actually pretty impressive. I don't think the composite and vinyl windows are going to be considered top tier like an Okna or Soft-Lite, but I think you'd be right to consider it a solid mid range performer.

I looked at a few website forums and saw that some consumers and installers had an issue with how the windows looked, specifically with the top rail and thickness of the window frame. So assuming you don't have an issue with the overall aesthetics, I don't see why you wouldn't at least consider them. Of course, I'd like to see you get a couple more bids and compare the windows on the performance data.

Dane - Site Editor - from 2017






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Interstate Windows General Reviews


Interstate Vinyl Windows

Do you have knowledge about the quality of interstate vinyl windows as well as Revere Berkshire Elite? Thank you.

Iris - Homeowner - from 2019

[Site Editor's Answer]

Iris, I would say that Interstate is a solid mid range manufacturer. I'd go with one of their better series though. The Revere Berkshire is a solid model as well, a strong mid range vinyl window. Given solid installation from a reputable company, I'd say you should be good. The Preservation is the better window, but not by much. Pricewise, I'll bet these two are much lower.

Tim - Site Editor - from 2019


Interstate Windows Reviews

A lot of people think Interstate is a wood or wood composite window because it has a wood interior option. It's actually a cellular PVC composite. For the same material, Okna's Starmark is probably a better bet.

Wayne - Contractor - from 2010






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