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This was easily the best and smoothest home renovation project that I have ever been involved in, and we have done a lot with our 115 yr old home. Generally I do most of my projects on my own, but with job responsibilities increasing I just didn’t have time to tackle installing 12 windows (10 of which are on the second floor). We contacted Dennis Riley, of Zen Windows, and within minutes we knew this was going to be a different, and positive, experience. Dennis was able to give us a quote for the job (which was spot on) and was eager to answer our questions. There was no pressure… NONE. Actually, that was the strangest part. We have been conditioned to expect companies to clamour for our business; Zen gives you all the information that you need to make your decision… And then they let you make your decision! Once we made our decision the process remained incredibly smooth. Eddie, the window installer, came out and measured our windows, windows were ordered and about two weeks later they were going in. Eddie, and his crew, were the most professional and pleasant group of guys I have ever had working on a renovation project. They explained the process, engaged in friendly conversation when they could, cleaned up after themselves as they went along and were extremely respectful of our home. AND THERE WAS NO FOUL LANGUAGE! This is huge! We are all adults and I understand how things can get (and I have been around my fair share of construction workers and laborers), but I did not hear one bit of questionable conversation all day. It does a lot to set a home owner at ease. The windows are in… And we have already seen a decrease in the AC usage, as the home is now more energy efficient. The street noise is almost non-existent. We have 7 more windows to do on the first floor. Initially, we were going to do them ourselves, but we will leave it in the capable hands of Zen Windows and their installation crew. If you are thinking about replacing your windows do yourself a favor and check out Zen Windows.
Ryan B.

Ryan B.

The owner came on site to supervise the installation. The door arrived damaged from the factory, but was quickly replaced with a perfect one. The installation is beautiful and a problem around the old door was repaired at no extra cost. The installer was excellent and detailed.
Philp R.

Philp R.

They were able to work my schedule and they were pretty quick about getting it done.
Andrew M.

Andrew M.

Went very well. Excellent communication, punctual and friendly staff. They used cloths to cover all my carpet and cleaned up all their mess. Left my house cleaner than it was when they arrived. Wow! Will use again or refer to others.
Sandra M.

Sandra M.

A week or so before, I saw the coupon on Angie’s list for this company and then googled pricing, etc. On April 30th, I emailed the owner, Dennis with a question and gave my phone number. He called that same evening, explained the offer and answered my questions. These are high quality double hung Energy Star windows with Low E coating and Argon gas in between the panes. I decided this was a good deal and purchased the coupon on Angie’s list. Dennis called the next day and we went over the type of windows I needed and said the installer would call to make appointment to come out and measure, etc. The installer, Ed, called me the next day and came out within the next day or two after I got home from work. Ed has been installing windows for 20 years. Both Dennis and Ed were a pleasure to work with from order to installation.

Dennis contacted me on 5/19 to let me know my order had arrived. Ed called same day and had an opening the next day, however I had a conflict so I set it up for the following week. Installation was set for 9am and Ed and Cody arrived promptly, were very courteous and friendly. They finished the job at 1:30p and the windows are beautiful. They are also tinted. Looking out from the inside, they look perfectly clear but looking in from the outside, you can barely see in although I’m sure you could at night with lights on inside. Ed showed me how to operate them and movement is effortless whether you’re opening/closing them or tilting bottom or top in for cleaning. They also have window stops (which you can hardly see when not activated). Ed and Cody had put down drop cloths in the work area and cleaned up very nicely inside and out.

Last year, I had 2 other windows replaced. They are good windows but like the Zen windows much better….wish I would have waited! I highly recommend this company!

Christine Y.

Christine Y.

Zen Windows replaced 9 windows in our home. The entire project went flawlessly. Dennis makes the selection process very simple. He was very quick and knowledgeable when answering any questions that we may have had. The install crew showed up on time and performed their job in a professional and timely manner. I would definitely recommend Zen windows for your future window projects.
David J.

David J.

First, I contacted Dennis, owner of Zen Windows in St. Louis, via e-mail asking for an estimate to get my windows replaced. Dennis replied via e-mail with an estimate within 15 minutes. I then called Dennis and talked with him directly. He seemed to be the real deal so I agreed to the deal and accepted his bid. He had his lead installer, Eddie, come by my house and measure the window sizes. Eddie was very friendly, knowledgeable, and capable. Dennis oredered the windows from the Zen shop in Columbus, Ohio. An installation date and time was set. Dennis and his side kick, Cody, arrived at our house 30 minutes late due to a problem with lack of supplies that they had to pick up on the way to my house. When they arrived, they went straight to work. Cody laid down drop cloths while Eddie took out the first of the nine windows. They worked steady for until 4:30 pm. Cody ate his lunch while working and Eddie ate his lunch while he watched Cody work. After the work was finished, they cleaned up their whole mess, including vacuuming the house and picking up the scrap outside. They asked me to inspect their work. They told me about the warranty and asked if I had any questions. I told them know and I shook their hands. They make a good team. After they left, I called Rhonda, Dennis’s wife and co-owner of Zen Windows, and gave her my credit card number to pay for the windows. Rhonda asked if I had any questions. She told me that the windows were guaranteed for life, to include parts and labor. The friendliness and professionalism of everyone at Zen Windows was very impressive. Also, I got other estimates for the work done by Zen Windows. All estimates were similar. I think I made the right decision in choosing Zen Windows.
Albert A.

Albert A.

I used Zen Windows to replace a window in the kitchen with a sliding glass patio door. Dennis was very easy to work with, and Ed did a great job of expanding the window opening into a space big enough for a door. It looks great and as if the door was always there. Would definitely hire again for any window or glass door work.
Chris R.

Chris R.

Zen was great to work with! Everything was just as promised. No complaints. Will do business Witt ZEN again.
Keri R.

Keri R.

We took advantage of the big deal. We had some old windows replaced. Dennis had us set for success right from the start. Couldn’t be happier with the results. We just had 3 windows replaced this time and we intend to have another section done by Zen in the near future.
David C.

David C.

Provider offered glass replacement in existing windows instead of full window replacement as a cheaper alternative. Resulting effort cost less than half of what a window replacement job would have cost. Outstanding job. So happy the provider recommended the solution, even though it meant little or no profit for them. Truly appreciated the honesty and integrity to sell me only what I needed to solve my problem.
Michael M.

Michael M.

They were supposed to arrive early afternoon but the job prior to mine took much longer than they expected so I okay-ed them to come at 5pm. (They called continually through the afternoon to apologize and keep me updated). It was supposed to be a 1-2 hour job but like most improvements to my house (1960 brick tri-level), this job took much longer than they thought as well. They worked until about 11pm until the job was finished. I didn’t mind because I was staying up late and had the next day off. I’m sure they would have rescheduled if they had any idea it would take this long but they persevered and the window is top quality and the new casing looks great. I need to replace all my windows and I like how Zen stayed in communication with me up until the job date and they followed up to make sure I was satisfied. They also sent me a lifetime guarantee which can be transferred to the buyer of my home should I want to sell it.
Jon H.

Jon H.

I don’t usually write a lot of reviews, but what a pleasant experience dealing with Zen Windows. From dealing with the owner over the phone, to meeting with the installer, the customer service of this company was excellent. My calls to the office were answered promptly and their installer called ahead to let me know what time he would be coming. And he even showed up on time! It definitely wasn’t one of those companies where you needed to be home and they would arrive sometime between “8:00 am and 5:00 pm.”

The installer came to examine the windows from the outside and inside of the house. I was shocked as the installer entered our home and removed his shoes at the door, so that he would not track dirt in from other jobs he had been doing outside that day. He inspected the windows and showed us what parts would be more expensive to repair then to replace. We were hoping that the windows would be able to just be repaired. It was determined that some of the windows that had excessive drafts, broken hardware and broken ballasts were beyond repair and would be cheaper to replace than repair in the future, although they remain functional (but not energy efficient) at this time.

The no-pressure quote that we received over the phone was fast and painless. We are now budgeting to replace these windows in the future. We were pleased with the options in price and quality of the replacement windows, too. And I really liked that their windows come with a life-time warranty.

Overall, we really appreciated:

–Dealing directly with the owner when we called the company
–A quick, zero-pressure quote that included a set price for each window, installation and life-time warranty
–The ease of getting someone out to our house quickly, and not having to wait a long time on a waiting list
–A timely and courteous installer, who respected both our home and our busy schedule
–Great information on what we need to do in the future
–Not feeling like the company was trying to sell us something that we didn’t actually need
–A company that we know in the future will work within our schedule, budget and timeline

We will not only be returning customers, we will definitely be recommending Zen Windows to our family and friends. They were really great.

Jill W.

Jill W.

What a great way to buy windows, I was able to get a quote and buy windows over the phone without having a salesman come to my house. I would defiantly recommend Zen Windows St. Louis and will be using them again.
Stephen R.

Stephen R.