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MI Windows Reviews

Read 29 MI windows reviews to see whether this company and their Pro 5000, Energy Core, Homemaker 3, 1650, 4300 series, and Storm Armor window series.

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.)

MI Window Prices | 1650 Series | Storm Armor Series

Professional Series | Energy Core Series | General Reviews


Editor's MI Windows Reviews

The company started out in Florida and now operates three manufacturing plants in Arizona, Texas, and Pennsylvania. MI is quite a large operation and is widely known within the building and contracting world. Unfortunately, here is where the "accolades" stop for this window manufacturing company. For the most part, MI makes a low quality vinyl window that is mostly sold to large builders and contractors who are looking to put in a large number of run-of-the-mill vinyl windows at a low-per-unit price. Basically the company tends to use low quality components, parts, and features. The end result is a low end vinyl window that has sub par design, tolerance, fit, and finish.

The problem is that to look at the MI window on day 1, most consumers won't see much difference with other better-made vinyl windows. It's in year 8, 9, and 10 that balances, locks, seals, and glass will begin to display issues that then must be fixed or simply dealt with. It's very doubtful whether the MI windows warranty will apply to these issues after this many years.

The company does make a number of different models, including the Pro 5000, Energy Core, Homemaker 3, and 1600 series. Their top-of-the-line Energy Core does seem to offer some decent energy efficiency, but honestly I haven't the numbers personally so I can't speak to those with any authority. So unless you are getting this Energy Core model, I wouldn't put these windows in my house. The only caveat to this is if I were using them on rentals or I was flipping houses.

Check out our recommended windows page for a list of windows that will offer you some nice long term value. You will pay more up front for them, but you should save money in the long run and be happier over the course of the life of the windows.

Tim - Site Editor



MI 1650 Windows Reviews


MI 1650 Series vs. Simonton 5500

Hello, I am in process of doing roof windows and gutters and doors. I am ok with all with my contractor but had concerns about windows he selected in bid after reading reviews. He recommended mi 1650 I believe they were. Asked to quote different windows and he did. He came back with Provia Aspect and quoted both of an upgrade on 2500.00 more than original quote of 20k installed.

Roughly 40 windows not really sure when counting transom, half rounds etc. Most are standard size I guess with a few larger ones. Any advice on if contractor is pricing correctly and difference in windows listed above would be great. Thanks for your time.

Chris - Homeowner - from 2017

[Site Editor's Answer]

The move from the MI 1650 series to either the ProVia Aspect or the Simonton 5500 is without question worth the additional $2500. Frankly I'm surprised that the upgrade cost from a builder grade window to these mid range windows isn't more.

I like both the Provia Aspect and the Simonton 5500 window and I'm not sure which one I would recommend. I think they are pretty darn equal in terms of performance and craftsmanship. I would see which one your builder likes or has more experience. Obviously, if you like the look or feel or function of one over the other, then that should tip the scale one way or another.

I'm assuming you are doing new construction installation and paying $560 per window sounds about right to me. It's not cheap, but it certainly doesn't sound unfair either. It's always a little tricky dealing with a single contractor because you are already sort of bought in and can't leverage other window bids to lower his price.

Tim - Site Editor - from 2017


MI-1650 vs Atrium Windows

We are replacing 24 wood-frame windows -- mostly double-hung -- in a 19 - 20 year-old house in southeastern Virginia. One contractor quoted $11,900 for MI-1650 windows. Another quoted $14,300 for Atrium Series 40 windows. In general, MI windows appear to get a low quality rating on various websites. What do you think about these quotes?

Frank - Homeowner - from 2016

[Site Editor's Response]

Frank, you are right about the MI windows, they are builder grade windows and you can do better. Atrium makes a decent window, but I think you should keep going on your search for something that's going to offer you better long term value.

There are a number of other excellent vinyl window brands available in your area - you should be able to call up these companies and find out easily enough if they have a local rep who services your area - Okna, Polaris, Sunrise, Soft-Lite. All four of these brands that I mentioned are going to be a clear step above the Atrium, which again is not bad, just not the best. The brands I mentioned all have a few different windows series and models, one of which should be in your price range.

Tim - Site Editor - from 2016


MI Cutting Edge 1650 Windows

I had whole house window replacement (25 units) in September, 2008 with subject model. They had a ten year warranty. To date, three have failed seals. The installation contractor is no longer in business and unreachable. Can anyone suggest a reputable contractor to replace the windows? I would prefer the same model for conformity's sake. Otherwise, suggest a higher grade brand with a like or similar appearance to the subject model. Thanks.

Roger - Homeowner - from 2014






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MI Storm Windows Reviews


MI Storm Armor Windows

I'm looking to purchase a home from a builder in Fl. who has won "Builder of The Year" awards on multiple occasions. Im a bit concerned because he will be using the MI high impact windows (Storm Armor)if I purchase the home. I cannot find any reviews on these MI windows and was wondering if these are rated any better than the non-impact windows they sell. Thanks for your feedback on these windows.

Don - Homeowner - from 2016

[Site Editor's Response]

Don, MI does not have a stellar reputation in the industry, but I know lots of builders like them, I'm assuming because they get them at a good price and they figure the windows are "good enough." I don't know much about the Storm Armor series. I'm sure they are better than the standard MI vinyl windows, but that isn't a recommendation by any means.

I would ask the builder for two other impact options or brands that he could order. If he does, see if you can compare the performance to the Storm Armor, specifcally the Design Pressure Rating, U-factor, Air Infiltration Number and Condensation Resistance Rating.

I would ask if he has access to PGT, Custom Window Systems, Stanek or the Simonton StormBreaker Plus window. Without knowing anything about the Storm Armor, I would think that the options I mentioned would be a better long term solutions than the MI. Each of the companies makes a very solid impact window that will be more expensive than the MI, but isn't going to be exorbitant.

Dane - Site Editor - from 2016






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MI Energy Core Windows Reviews


MI Energy Core vs Simonton Windows

Dear Dane, we are in the process of replacing windows and have gotten a quote from an installer for MI Energy Core windows. However, after doing some research online, it appears that MI windows are a lower quality window and have gotten some bad reviews (as well as a class action lawsuit).

We are looking for a good quality mid-range window. We basically need 8 23"W x 59"H double-hung windows and 10 23"W x 59"H single hung windows. Looking at your website, Simonton appears to be a good brand. However the series names that are listed on the website do not match up with the collection names on the Simonton website. I'm assuming they just came out with new names? Can you recommend which Simonton collections are the better quality ones and which to stay away from? Is there another brand that you recommend over Simonton?

We live in the mountains outside of Albuquerque, NM. Our house is pretty shaded, but we do get quite a bit of sun, as well as 19" on average of rain and 59" of snow (not sure if any of this matters). Also, do you recommend vinyl over aluminum (or fiberglass)? Thank you very much for your time,

Melissa - Homeowner - from 2015

[Site Editor's Response]

Melissa, I would have to agree to the MI is not typically on many contractors top 10 list. The Energy Core is not bad though, although I haven't seen numbers on it. In terms of good mid range vinyl windows on the west, I would say look at Milgard, Amerimax and Anlin. Milgard will be available for sure, Amerimax possibly and I don't know whether Anlin has reps in your area.

I would say stick with vinyl, although fiberglass is certainly an option. Aluminum is really only something you should consider if you are in very hot climates, which Albuqueque is not based on the fact that you get that much snow. Fiberglass options should include Marvin Infinity, Inline, and Milgard Ultra.

Simonton is a good brand, probably not as good as the ones I mentioned, although it all depends on which model you select. I like their 9800 Impressions, and their Reflections 5300 and 5500 series.

Tim - Site Editor - from 2015


MI Energy Core Windows

I like the new Energy Core better than their old lines, but they still can't compete with most other brands. Builders go with low quality windows because they're cheap, and when you buy thousands of windows the money adds up. You want a real window for your house, not cheap junk that's only made to look good long enough to sell. Go with Sunrise, Gorells, Okna, SoftLite, they're all great.

Matt - Installer - from 2012

Read more Gorell Windows Reviews


MI Energy Core Windows Reviews

MI has a new Energy Core line that looks like it might be good. My biggest problem is it has a pocket sill, which I really don't like unless you have an impact window or some other good reason. Their other lines are nothing special. You can find plenty of others for around the same price with a much better track record as far as satisfaction, efficiency, and performance.

Holland - Contractor - from 2012






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MI Professional Series Reviews


MI Windows

My MI windows are leaky and now I have lots of damage to the walls and frames and sills. Need professional opinion so we don't repeat. My daughter bought a "flipped house" last April in Northern California. Flippers replaced old aluminum windows with MI Professional Series retro fit windows into old frames. The rains came and water flowed into interior of walls around frames and when vinyl white cover strip at top of window was pulled back water flowed in when tested.

- Homeowner - from 2017

[Site Editor's Answer]

Hi, I would get a bunch of window companies out there to take a look and let them give you their bids and see what brands they carry.

There's quite a bit of work there so make sure you get five or six bids as I can imagine they are going to vary widely.

Once you collect all of the bids, feel free to shoot me another text with the bids and brand of windows and I can give you my two cents!

Dane - Site Editor - from 2017



MI General Windows Reviews


Pella 350 vs MI Windows

Dear Sirs, we are building a new house in Kansas City and our builder uses M&I and Pella windows in his model homes. The house ours is patterned from used M&I. We are struggling to get comfortable with them and are leaning toward insisting on using the Pella brand. We have never heard of M&I and my research shows a class action suit brought in 2012 and settled in 2015. Red flag indeed. Can you give us your opinion of both M&I and Pella and your recommendation, please.

Morey - Homeowner - from 2017

[Site Editor's Answer]

Hi Morey, I would agree with you that there are immediate red flags when it comes to MI windows. They are a builder grade windows for the most part, meaning builders buy them because they are cheaply made and they save money by using them. The problems often rear their heads come year 7 or 8 or 9 when you begin to get little things happening (I'm not saying this will happen to you, but I deal with enough consumer's complaints to say this CAN happen) -- broken seals, locks that don't work right, sashes that don't smoothly open, etc. By this point, your builder has obviously moved on and MI isn't overly concerned about addressing your problem because they are in the business of selling more vinyl windows.

I would say that MI's premium vinyl windows are better, but it's still not a brand I would feel comfortable with in my home if I were interested in long term value.

Pella used to be just as bad when it came to vinyl windows. The Pella Thermostar was one of the worst vinyl windows ever made in my opinion. However, the company has certainly improved with their 250 and 350 series a few years back. They aren't the best vinyl windows on the market, but I would probably feel comfortable with the 350 Pella in my home.

They wouldn't be my first pick, but if my choices were MI and Pella, I would go with the Pella 350 series with a nice low-e glass package. The installation of the windows is important so be the squeaky wheel when they are installing it so the installers bring their A game and don't cut any corners.

Tim - Site Editor - from 2017


MI Windows Quality

Hi Dane & Tim, I am having a room addition done on my house. The GC stated in the contract that Miguard Tuscany window and sliding door would be installed. He brought out and installed Mi window and slider, when I asked what was up, he said they are comparable. As I have started researching online, I do not see a lot of favorable reviews of Mi, and a class action suit. I am unable to find a head to head comparison. Any thoughts would be greatly appreciated. Thank you.

Tom - Homeowner - from 2017

[Site Editor's Answer]

Tom, I don't know that many people who would consider MI windows to be comparable to Milgard. MI is typically thought of as selling mostly builder grade windows, i.e. poor quality windows. I think the only exception I might put here is their Energy Core series. So what MI window did he put in? If the contract says Milgard and suddenly you have MI windows in your house, that's a serious red flag.

One of two things, assuming you have this in writing. One you tell him to take them out and put in the window that you specified in the contract. Two (and much more plausible), you get a significant break on the price he quoted you on the windows themselves. That is bait and switch, plain and simple.

Tim - Site Editor - from 2017


Mi Windows vs Milgard

Are MI windows comparable in quality to Milgard window?

Yvette - Homeowner - from 2016

[Site Editor's Answer]

Yvette, the Milgard windows are going to be better than MI windows in my opinion. I really like the Milgards, while the MI is considered more of a builder grade option.

Dane - Site Editor - from 2016


MI or Ply Gem Windows

We are in the process of renovating a 1950s mid century modern house in Houston, TX. Our builder has given us the option of MI or Ply Gem windows. Can you tell me which would be better? Thanks!

Katherine - Homeowner - from 2016

[Site Editor's Answer]

Katherine, Ply Gem is clearly the better of those two window brands. Frankly, MI is a builder grade window that is not particularly made well in terms of long term durability. I would avoid the Ply Gem Contractor and would insist on either the Ply Gem Pro or better yet the Premium Ply Gem vinyl window. It's quite good.

Dane - Site Editor - from 2016


Mid Range Vinyl Windows

We had Oxford windows but had a house fire and the basement windows need to be replaced. There are 3 smaller windows, and we will now have 2 egress windows. Our contractor wants to replace them with MI windows, but from the reviews I've been reading, it's not a good nor comparable replacement. What would you recommend that would be in the mid-range and still look nice?

Lisa - Homeowner - from 2016

[Site Editor's Response]

I would agree with you that MI windows are not a high quality window and I would recommend using another replacement window for your project. Several excellent vinyl window manufactures that produce numerous models (one or two of them will be their mid range series) include Sunrise, Soft-Lite, Okna and Polaris. These brands tend to be located in the mid west and northeast states and will not be available in the west.

For west region options, I would consider looking Milgard, Anlin and Amerimax. Ask your contractor if he can get you quotes on several of their mid range windows to get some comparison pricing that contains your specific product needs. You will be amazed at the price differences!

Dane - Site Editor - from 2016


MI And CertainTeed Windows

Have you heard of MI Windows? www.miwd.com

Mark - Homeowner - from 2016

[Site Editor's Response]

Mark, I have heard of MI windows, although they don't have a very good reputation either. They are a large building supply company that owns CertainTeed. While CertainTeed has a good reputation in terms of their siding products, their windows do not have the best reputation in the industry. The company manufactures a lower end vinyl window that isn't going to provide very good long term value. They are well priced of course. I would suggest looking at the window brands I mentioned - if you are looking for more of a budget priced window, I would go with these company's entry level windows, they are still going to be better than an MI window in my opinion.

Tim - Site Editor - from 2016


MIWD In The Desert

Dane, We need to replace all of our windows in a twleve year old house that was built on speculation and now has water coming in through the frames where the joints have opened up. We have spoken to an MIWD representative, but I see that you don't particularly like those windows. We are not looking to go "cheap" here, but we do want to make sure we don't throw our money away. The windows we now have are Jeld-Wen and they have not held up well in this relatively new house.

So...with the understanding that we live in the Sonoran Desert and we have south and west facing windows, what would be your recommendation for a quality window that will last a long time and be as energy efficient as possible? Thank you for your considered opinion.

Jeff - Homeowner - from 2016

[Site Editor's Response]

Jeff, if you are looking for the strongest windows that can hold up to harsh conditions, you may want to look at an aluminum clad window. The problem is they aren't very energy efficient. Milgard makes a good aluminum window, Don Young out of Houston might be available in your area and they make a good aluminum window as well.

You can also go with a good quality vinyl window. In Arizona, I would recommend Milgard, Amerimax and Anlin. All three of these brands will have companies in your area that carry and install these windows and they are my west coast go to vinyl window companies.

I would suggest getting 4 or 5 bids and trying to get a consensus as to what the local companies think is the best window option for your climate and environment. The desert is a tough place so finding the best fit is key - the local companies should have a better idea of the right fit.

Tim - Site Editor - from 2016


MI vs American Jewel Windows

I need to replace an old bathroom metal frame slider window. I have quotes at the same price for an American Jewel 1500 vinyl double hung with standard double insulated clear tempered glass. For the same price, I have an MI Windows and Doors series 1555 vinyl double hung insulated glass. Which window is better? I see many of your reviews do not like the American Jewel.

Trudy - Homeowner - from 2016

[Site Editor's Response]

Trudy, neither MI or American Jewel tend to get very good marks in terms of a quality vinyl replacement window. You are obviously on the East Coast and there are some nice options, including Soft-Lite, Sunrise and Polaris. These three vinyl window manufacturers should be available through one or more local companies who service your area. I would suggest continuing your search in order to at least see how the prices compare, they are going to be more expensive, but I can pretty much guarantee that these windows will provide better long term value for you over time.

If I had to pick between the MI and American Jewel, I would have to go with the American Jewel windows. However, I think you can do better for hopefully not THAT much more in terms of cost.

Dane - Site Editor - from 2016


MI vs Sunrise Windows

Which window would you recommend? Sunrise, BF RICH OR MI ?

Chris - Homeowner - from 2016

[Site Editor's Response]

Chris, you've asked an easy question to answer. The Sunrise is the better brand by far over the MI. BF Rich is not bad, but no where near the Sunrise. Sunrise offers a number of different models, all of which are very good except perhaps their entry level Essentials model. The Standard Sunrise is a very good window. You can order this and then choose any ala carte upgrades that suit your particular needs and budget.

Let me know how it works out! Good Luck!

Dane - Site Editor - from 2016


MI Windows vs PGT

I am building a new home and looking at windows. The sub originally quoted MI windows, now Jeldwen and PGT, all vinyl, Should I go with Vinyl or another type and which would be rec. pending pricing.

Rob - Homeowner - from 2015

[Site Editor's Response]

Rob, congrats on building a new home, that's exciting stuff...and also very stressful so I hope you are enjoying the process as much as possible. In terms of quality, MI windows are near the bottom and not a brand I would ever recommend. Jeld Wen has an okay reputation in terms of windows, and a very good reputation in terms of doors. I like PGT a lot, obviously depending on the model and features you choose.

As far as materials go, vinyl runs the gamut. A low quality vinyl window is not going to hold up over time and can cause you lots of problems and headaches - poor seals, poor weatherstripping, clogged weep holes, overall poor air infiltration.

On the other hand, a high quality vinyl window will provide more long term value than almost any other material out there - wood, aluminum, composite, fiberglass. Good vinyl windows are not the best looking windows out there, but they have excellent energy efficiency ratings, are quite durable, and they are one of the most affordable windows on the market.

A mid range or high end PGT window, along with proper installation and quality glass and features, should serve you well for the next couple of decades. This would be my selection, no questions asked (actually you should ask as many questions as you can think of to your builder to make sure he feels comfortable installing the particular window you select....). Let me know what you decide!

Tim - Site Editor - from 2015


MI Windows vs Viwinco

Viwinco makes a lower end window. They're on par with Silverline or MI. If you need a cheap window, they aren't the worst you can do, but if you're going to live in the home for a while, try for something a little better. Oknas or Sunrise, Himark, Softlite, all of them are so much better in terms of performance and looks. Of course, sometimes that just is out of budget, and you have to do what you have to do. Really, you want a window with a u-factor of .28 or lower, a DP rating of at least 50, and air leakage under 0.07.

Michael - Contractor in New Jersey - from 2012


MI vs Milgard

I'm getting two windows replaced and every quote I get seems to confuse me more. I can't afford to do all of the windows at once so I am only doing the two worst "leakers". I have quotes for 3 Milgards or an Amerimax with 2 MIs. But when I went to look at the Milgards again to try and decide, I saw the Andersen Series 100 and loved them. One installer said they are really good for the weather here in Arizona.

Al - Homeowner in Arizona - from 2012

[Contractor Response]

I'm in LA, not exactly the same weather but not too far off. The Milgards and Amerimax are all good choices. The Andersens, I'm not so sure about. They have a new Silverline that might be worth it and might not.

Jeff - Installer - from 2012

Builder Grade Windows

MI windows are made for builders. They're cheap, designed to look good just long enough to sell the house. They aren't a window that anyone wants to live with. You'll be stuck dealing with flimsy materials and poorly made frames. You'll be replacing them in 5 years.

Mike - Contractor - from 2011


MI Window Warranty

My house has MI windows that are about 15 years old. I've heard they have a lot of problems, but I've been impressed with mine. Their warranty was better than a lot that I looked at and when I did have a minor problem they stood by it with no arguing. They replaced 15 year old glass at no cost to us, and not everyone would do that.

Grant – Homeowner – from 2011


Xacts vs Ply Gem

Allied Building Products has a private label window called "Cutting Edge" and I'm trying to figure out who manufactures it. Any ideas?

Jay - Homeowner from 2010

[Contractor Response]

They're made by MI. They are also sometimes called Xacts. They are a cheap, builder grade window designed to be the lowest cost possible. If you have your heart set on Allied, look at the Ply Gem Premium or Great Lakes 5000. Before you buy anything take the time to check out Okna, Sunrise, Polaris, and SoftLite. With any of those, you'll be getting a window that's worth your money and won't fall apart in five years.

Holland - Contractor - from 2010


Good Customer Experience

We looked at three options when we got our windows. Pella from Lowes, Simonton or CertainTeed from Home Depot, all with a local installer. We liked the Simontons, but finally decided on MI Xacts, which are made by the same guys who make CertainTeeds. They are identical to the Bryn Mawr IIIs. The installation was great, plus the installer had worked with the windows before. He didn't cut corners and the whole thing was done neatly and carefully. He did the trimming and priming and some really nice caulking and touch up work. The windows all work really well and look great. Plus it only cost us $3600 for 9 windows.

Steven - Homeowner in New Jersey - from 2008






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