I have bought, sold, and installed thousands of windows in hundreds of homes that I have purchased from Eugene Lang and his family run organization. I came home from the Army in 1974 went to work for a company and we installed the Lang windows. In 1978 I went into business for myself doing handyman stuff from the basements to roof tops. Supporting my family and giving good honest service to all clients. We have installed the Lang windows in midwinter just placing them in the openings and coming back the next day to have the customers say how great they feel and we weren't even done yet. When we insulate and cap the outer trim with aluminum and caulk and seal inside and out the project and results are fantastic. These windows give the best BANG FOR YOUR BUCK BY FAR. The office and personnel are good people, yes they are hub of a company that serves and delivers a great product. If you can wait your turn you will get your satisfaction and service to perfection. These girls are professional counter people doing their jobs usually trying to do 2 at time. I place orders in all types of companies, HVAC, Roofing, Siding, Plumbing and Electrical. Over 50% of the time they tell me to HANG ON, and many of those calls get lost. I also have had callers or perspective clients give a bad review because I couldn't drop everything and give 100% of my time. You cant please all the people all the time !! BUT as everyone who has been PATIENT knows You will happily respect the results. Kind regards to all, Bob Hansen Hansen Brothers Exteriors read more

This is a great company for windows. Our contractor recommended that we go with them, and we couldn't be happier. Choosing windows is not exactly the most fun thing to do, but Lang's product lines make it a bit easier. For instance: There are tons of different kinds of ways a window can operate. This was news to me since I (like many homeowners) may not have paid the most attention to my windows before this experience. Once you select the way you want your windows to operate, now you need to decide on a color that fits your house. Now keeping in mind that windows are a long term investment; a lot of color options becomes pretty attractive I mean you do see them every day. Now in our search we found many companies that had 2-5 color choices. LANG HAS 37! What?! YES! So instead of your typical beige and grey choices we got a wood grain lamination inside and a bronze color outside. Oh but wait there's more... our contractor also mentioned energy efficient windows as well, now that really peaked my attention. Basically what we found out was there is a glass and gas combination that can insulate your windows and help save money on your energy bills. So we went with that. Now I know we can all appreciate a good product, but their pricing was also better than some of the other places we had looked at. Suffice it to say we are very happy with our purchase, and looking forward to having these windows for a very long time. read more

Special thanks to the girls at Lang exterior on Pulaski. Me and my wife are doing a total remodel on our older ranch in Glenview. We went to Lang with the recommendation from our contractor A-1 Pam , now we see why. We needed over 20 windows and patio doors. The amount can be overwhelming by itself. The girls were so helpful in explaining the different types and variations of windows they made.Did I mention Lang Exterior is one of verry few company's in the Chicago area that makes solid Black vinyl windows not painted. The black vinyl outside was a must to give our house that modern trendy look. After getting the new windows installed , the house looks great . Me and my wife were astonished how much better the house looks with the new windows. Apparently so have the neighbors, we've been picking up compliments daily. Once again thank you to the girls at Lang on Pulaski for making our window purchase go so smooth. For helping us make the right choices and decisions. I also couldn't believe , when they delivered the windows,all the windows were correct in sizes and colors.Thank you Lang. read more

My brother referred me to this company after replacing the windows in his own home. He said the window quality was amazing and the prices were extremely competitive. We contacted a few other companies to make sure Lang was priced right, not only were they competitve, they were more affordable than the rest. I cannot begin to tell you how many complements we received on all of our windows. The bow in the living room makes the room appear so much larger and provides so much ventilation from the picture window it replaced. We decided to install casements in the rest of the home which are not only gorgeous but function with ease. I would recommend this company without hesitation, in fact, my nephew just contacted them to replace the windows in the home he just purchased read more

I have been buying from Lang for ten years because the company I had been purchasing from closed. After installing and running my own company for over 20 years, I had to search for a new supplier and after looking at every one in the city and checking out at the warranties I chose to buy from Lang. They have a great frame, great glass package and very good price point. Last summer i finished installing in my last building and am proud to say they are all Lang. I noticed the poor guy with the condensation on the interior of the window. Here is a possible cause Brian, your contractor never caulked against the exterior stop, outside capping was never caulked. The icing gets worse with to much humidity or air leaks, and some times just because of the Vortex. read more

Great company and even better products. I've worked with several companies across the Chicago land area and they are the best. Prices are very reasonable and the products speak for themselves. They carry a great selection of window packages that one can choose from to get the most efficient window and have a variety of colors..For years I have been using their windows and am always satisfied. If on the very rare occasion there is something wrong with a window they are quite helpful in helping resolve the issue. As a contractor I use these windows in my own home and have not had any issue with them since they were installed about 7 years ago! Highly recommend them to all homeowners. Also extremely that they have a locations on the North and South Side. read more

I'm a General contractor and every now and then we install windows for our projects, I always go to the north side location on 2529 N Pulaski Rd. to place my order, the lady behind the desk is very professional and know to ask the right question to make sure your order is placed correctly. I had a large picture window that needed replaced and I had to take the sash to the south location on 2323 W 59th St, Chicago...I was pleasantly surprised of the large place and plenty of parking they have there. Mark was the person that helped with the order and he was very friendly and professional. The turn around was exceptional...got my replacement in 2 days. Thanks Lang Windows for a fast turn around. read more

My husband and I bought a house near St. Louis, MO and have lived in it for about 11 years. The windows had been replaced with Lang Exterior windows by the previous owners prior to us moving in. The weather stripping has cracked and is falling apart (because it's old, old, old). We did some research and couldn't find a carrier in our area. We called one of the stores in Chicago and talked to Beth. We then sent them a couple emails with pictures and they are sending us the weather stripping in the mail. Should be easy to put in ourselves. We had a great experience with their customer service and support staff. They were very helpful and made sure that we were satisfied. read more

I have been using lange since opening my business. It is always a great pleasure working with them! The office staff are all very professional, knowledgable and friendly with excellent customer service skills. Everytime you walk through the door they make you feel like family. I have purchased windows, had them relgaze windows and complete screen repairs. All the products are of the highest quality with fast turnarounds on production. Most importantly all of my customers are always very happy with the products! I will defintely be a lifelong customer of Lange Windows! Highly Recommend as the best window supplier in IL! read more

As a contractor, i have known Lang Exterior windows company for more than ten years. I give them five stars for the quality of their windows, the price of their windows, the customer service, the personal care my clients and i receive and most of all my clients satisfaction. I had installed Lang exterior windows in my own home. ( many years ago), till now zero problem. That is a fact. When i call the office to order windows or check on an order, i receive royal treatment. They are always cheerful, helpful, informative and appreciative of my business. God bless Lang Exteriors American windows. Five Stars. read more

Nasty attitude and horrible customer service from their front desk person. She wouldn't tell me her name, but if you're so nasty , you shouldn't be in customer service. I would've otherwise purchased over 15k in windows from your company for my entire house. Your loss, not mine. I will simply take my money and business elsewhere .. Lang, If you are the owner and read this review, you can start by improving the customer service at the front desk. It's where it all starts and matters the most. Do not put a chick in the front with nasty attitude that constantly argues with the customers. read more

absolute junk!! 4 didfferent contractors, 3 different window companies have seen this garbage and all, every single one, say that lang exteriors sells the worst windows. they rip off families who have been through tragedy! uneducated, morally corrupt, thieves! contact me for photo proof, within a week a site is being developed to specifically stop lang exteriors as well as lawsuits! ALL 7 PEOPLE HAVE SEEN THEY WERE PROPERLY INSTALLED, THEY ARE JUST JUNK THEY USE TO STEAL YOUR MONEY THEY BLAME EVERYONE ELSE FROM BEHIND A LAZY PERSONS CUBICLE NOTICE THAT THE HOMES HUMIDITY IS NORMAL! read more

Loyal to their customer needs. They did everything they could to help me get my order in. I highly recommend working with Beth, her front desk staff, and even the order attendant that greets you in the parking lot. Every person helped me with my order and any issues that came up. I custom ordered 30 windows and Lang worked with me to decrease the stress of issues that arose on my end. I cannot sing their praises more at this point as I ran into some property issues with the windows and Beth each time helped me resolve each issue. read more

I have been working with Lang for years. Superior products at fair prices. I mostly work out of their South Location, but have recently been ordering from the North location. A few months back, I screwed up an order; I placed the order, paid for it & confirmed it. Once I realized I made a mistake, I called immediately. After confirming that the the order had "not yet been put into production"; the team was able to correct my order which saved me time and money...Allowing my job to flow smoothly. Great Job North Side Team! read more

I've been using Lang's windows for years now. Though a lesser known maker of windows, I will stand by the fact that their windows are superior in quality to any of the national brands like Anderson, Pella, etc for about 1/2 the price. Fast turnaround and extremely knowledgeable employees at the desk. I'm a huge fan of their black vinyl windows because they literally don't fade. I love that you can design your own grill and the windows are fully customizable. read more

One of the best services in Chicago! I am the owner of a family owned building company and have worked with Lang Exterior on numerous occasions. The workers are extremely helpful and never fail to get the job done in the best manner possible. The staff is extremely helpful and kind as well. The quality and pricing of their products are well worth your while, especially if you are in the building and renovation industries. -Lucy from L.A. Development read more

I wasn't looking forward to the process of replacing 4 windows. With the winter coming, and knowing my old windows, my heating bill would have been outrageous if I had not made the move for new windows when I did. I got in touch with a local contractor, and requested the Lang product. He confessed that to his surprise Lang was actually a better deal than his usual supplier! I guess a little research really paid off! read more

My name in Pat Anderson, I am a home owner and my contractor just installed Lang Exterior windows. I read the review on Yelp about these windows and I was a little nervous, but to my surprise these windows are " beautiful "!!!!!! They work perfect, they are so perfectly made and I love the color. I will tell my family and friends to buy these window. Lang exterior in my opinion are the best windows in the world!!!! read more

Lang Exterior is top notch! Their windows far supersede any other window manufacturer and are made with excellence. Their windows stand the test of time and I wouldn't use any other window company! They also provide great service and turnaround time! I deal with the south side location and cannot express enough of how pleased I am with their service and how easy they are to work with! Great windows! Great service! read more