We had a very poor experience with another company when researching windows and installation and…read morewere a bit cynical of contacting another business. However, the process of obtaining a quote was indeed as easy as Zen Windows website makes it out to be; check out their website and watch the videos. I completed their form with the number of windows, approximate size and the requirement that the windows must meet a minimum efficiency. A reply was quick and thorough and above all easily understood and answers to questions were immediate. Dennis provided all the information needed should a permit have been required. Once accepted, Kevin came out within a few days to take specific measurements needed for ordering the windows. Within just over a month, we received a call asking if the installation could take place within 48 hours as they had an opening. Ed, Jimmy and Daryl were the installation crew who arrived promptly and you could not ask for a more conscientious and professional team. They seemed to get along and worked well with each other. Care was taken to protect floors and carpet, the installation and operation of the windows was explained, and clean up was meticulous. I had planned to shampoo my carpets after they were finished and Daryl did such a good job of cleaning up the floors I did not have to vacuum first! We had 6 windows replaced and opted for the Endure EN600 series double hung, Energy Star Certified windows. These windows were installed on a warm day in rooms that get the afternoon sun and it was immediately apparent that the sun gain was much lower than the previous windows. The wind is gusting today and there are no drafts! The total cost was a bit above some of the other estimates but after our previous experiences as well as the ease of the ordering process, the personable and professional installers- much less the quality of the windows- it has been well worth it.

Dennis and Rhonda were quick and fully responsive to my questions and made the whole purchasing and…read morescheduling process very easy. Their seasoned installers were very professional, prompt, and respectful of our home. They worked hard to replace our entire two story home in one day before bad weather was supposed to hit the next day. We feel like we got a great product that will last for many decades which also has a great warranty. I would definitely recommend them to anyone wanting the best customer service and no pressure sales with a great buying experience.

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.

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.

Had Chaney install a Provia front door on our home. Fantastic job. Greatest company in st louis…read morefor windows and doors. House looks like a million dollars . Will easily recoup cost plus some when we sell . Stay away from big box stores with there terrible installers. Can't say enough good about this company.

Had all new windows put in a while back. I tweaked one while cleaning it and couldn't get it…read moreclosed. I called and got an immediate response. They sent Ben out to fix it for me. He was so kind and patient in explaining how to avoid the problem in the future. Love these people !

We are happy repeat customers with Masonry & Glass Systems. Our first experience was with having…read moreglass block installed in two of our basement windows. This time around we hired M&GS to install new windows with new sills, front doors and storm doors off our family room. All the work was done with quality and class and we couldn't be happier with the outcome. Our house was built in the late 60's and we have those dreaded double front doors. I call the one side a dummy door because it's unusable since the back of it is the wall to a bedroom closet. We'd been dreading having this replaced because we watched our neighbor have the same type door replaced and his contractor (not MS&G) had a really hard time of it. Not the case with MS&G. They have experience with these doors and had ours installed with ease. I hope this review helps you in your home remodel journey

Absolute waste of my companie's time. I requested a quote for replacement windows on a rental home…read morewe manage. That was on the 3rd of January. To this date, now the 20th, I have no quote and after calling three times to follow up, no call back or resolution from anyone in the company. I now have to start over with another vendor. If I cant even get the quote, I can only imagine how installation would go. Very disappointing. Surprised at their current high mark ratings

Jared Hoffman was so friendly, patient and kind with my crazy household while providing a quote…read more I enjoyed the details from the company information, door and glass information. Jared was very informative. Love the samples between the digital views and glass samples. Highly recommend this family owned company

I hired STL Windows and Doors to replace 28 storm windows on my home because they were highly…read morerated. I was told that the windows would be fully custom to fit my existing custom interior windows, however, the storm windows I received are not custom and do not line up with my existing interior windows (see photos below). Honestly, I just wanted this fixed as it degrades the look of our home and is not what I ordered. What the company will tell you: 1. They tried to remedy the situation, but the company they use is no longer making storm windows so there is nothing they can do. 2. They apologize if the windows are not aesthetically pleasing or do not meet my expectations (disregarding the fact that they are not what I ordered). 3. They pride themselves on customer service, their reputation, and their customer's satisfaction. What I will tell you: 1. When I alerted them to the issue, they said, "It is what it is." They also told me that the storm windows only came in a 50/50 split (and not custom). I contacted the supplier myself and confirmed that the windows are available to order in custom sizes. When I told the company this, they said that they had reached out to the supplier and since they were no longer making storm windows, there was nothing they could do. I asked if there were other solutions, such as contacting another supplier, but I never received an answer to that. They also claim that I didn't tell them of the issue until the job was complete, but I told the installer (who happens to be the owner's sister) at the beginning of day two and her fiancé (the salesman) came out at the beginning of day three to see what the issue was. The job was not completed until the end of day three. I did not correspond with the owner until I filed complaints and contacted a lawyer. 2. "Apologies" aside, I must now pay another company considerably more money to fix the issue caused by STL Windows and Doors. 3. Their actions do not align with priding themselves on customer service. To outline a few of the particulars (without going into too much detail): they've blamed the original salesperson who no longer works for the company, they lied about the windows not being available in custom sizes, they then blamed me after I found out that they are available in custom sizes, a window was installed broken and has not been fixed. Please SHARE this with family and friends to help them avoid losing money to false promises. Thank you!

We just had several windows replaced by Windows, Doors & More at our home in the St. Louis area…read more To say we are pleased with the result would be a vast understatement. Dan carefully walked us through the many product and pricing options and explained trade-offs with each - in an informative, no-pressure way. His advice was invaluable and we are just really pleased with the outcome. The installation process was efficient and with care and attention to detail. All done in less than a day. So, a resounding recommendation to Dan and his team. Great job - thank you!

From the owner: We specialize in helping our customers get an exact fit with their window and door needs.read more