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    Zen Windows St. Louis

    5.0 (6 reviews)
    Open 9:00 am - 7:00 pm

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    Dennis R.

    Thank you! It was a pleasure working with you on your project.

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    Mills Window & Door

    Mills Window & Door

    4.3
    (6 reviews)

    I would highly recommend using Mills Window and Door. We needed 3 windows replaced in our house…read moreand are very glad that we went with them. The free estimate was easy to schedule. The installation went smoothly, and the price was very reasonable. I really appreciated that they were responsive to all of my questions and were flexible when I needed to reschedule the installation date. They turned what could have been a very unpleasant process into something relatively easy. If I ever need a window replaced again, I will be calling Mills Window and Door.

    I recommend homeowners do some research before working with this company. I found their business…read morepractices to be sketchy but do your own homework and decide for yourself. The company does not appear to be transparent. The website and rep claim their office is in Fenton but the business addresses registered with the Secretary of State are as follows: James & Kimberly Mills who filed articles of organization in 2015 (not 20 years ago as I was told by the rep) is at 438 E Clinton Place in Kirkwood. Another "Mills Window and Siding" company is registered with a fictious name located at 5355 Hagemann Crossing, Sunset Hills, MO 63128. I recently met with a rep from Mills Window and Door after getting a coupon in the mail. I was told the 40% coupon for siding would be from the "suggested manufacture price" and ultimately the bid would be competitive - so the coupon is merely a "bait and switch". I was told I would be paying 3% more if I used their "interest free financing" or a credit card. Mills Window and Door policy is to get 50% down but the work won't start for 2 months and they control the scheduling. When I questioned my concerns about paying 50% up front then having to be held hostage for at least 2 months to get the work done is not a benefit to me as a customer. One would hope a siding company would stock standard white siding. I was told they have been around for 20 years and have tons of great reviews. The original company was registered with Missouri Secretary of State in 2015. The "fictious company" was registered in 2022. Reviews can be manipulated as we all know and I would recommend homeowners get names and phone numbers from actual customers they have done work for in the past 3 months or don't use them. I informed the rep I would do my research to ensure I am dealing with the original company that has been around that long and he quickly skedaddled stating we were not a good fit. I agree.... I don't like working with companies who are not transparent and want to charge up front then not deliver the service for 2 months. I found the lack of transparency, multiple addresses and business practices unacceptable and felt it important to warn other homeowners to do your research and get actual recent referrals and bids from other companies.

    Martin Door

    Martin Door

    4.3
    (30 reviews)

    Contracted with them at the end of December for new entry/storm doors. It'll be a couple months,…read moregreat, fine. (little annoying the "remeasure tech" was HOURS late but whatever) Got a call mid February, doors are here, we'll be there 02/24 to install. Again, great, fine. They show up, on time, said they wanted to re-measure to make sure everything was to spec. Um, ok - why wouldn't it be? They ripped off all of my door trim/casing and sat in their trucks for *90 MINUTES* without a word. Came back: "we have a problem". The brickmold is a quarter inch off - the manufacturer (ProVia) has a software problem and even though we gave them the correct measurements... blah blah, whatever. So, wait two weeks to get the corrected brickmold. Fine, stuff happens. 03/05! Called them 03/06. Guess what? STILL WRONG! No apologies, no anything. Wait two more weeks, no biggie, this is the way stuff works. March 20 it is! NOPE! March 16 and get an email that the manufacturers internet is down. No idea what that has to do with anything... how many times can you fail a customer and just tell them to wait two more weeks? Anyway, now I'm scheduled for April! Of what year I have no idea. Pathetic.

    Garage door would not close properly. It would go half-way down and return. Called Martin, they…read morewere here next day. Matt saw that the 25 year old double door had a 3 inch sag in the center when in upper position, and along with other worn parts, caused it to bind. He secured a metal brace across door. Fixed in 30 minutes. Thanks Matt and Martin Door.

    Zen Windows St. Louis - windowsinstallation - Updated August 2026

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