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Thank you for visiting our page. At Semko, we are proud to offer you the best window and door replacement service in Chicago. We've been in business for over 30 years, and don't plan on slowing down anytime soon! Thanks to our thousands of satisfied customers, we have been the leader in the home improvement industry of Chicagoland. When you call Semko, you get to speak with a family that cares about your needs and desires.  If you're curious about how happy our customers really are, check out our reviews on Yelp!

We Offer the Best Replacement Windows in Chicago & the Chicagoland area

The Semko company has been an integral part of your community since 1989. Family owned and operated, Semko was founded by Hal and his son, Jason.  His wife Diana & three other sons Adam, Dave & Bobby also continue to work hard at Semko & will consistently put their expertise to work for you on your next important Chicago window replacement project!

Semko can bring samples of vinyl windows and wood windows directly to your home allowing you to thoroughly evaluate your individual project needs right on the spot.  Or, you and your family can stop by and visit the Semko showroom, filled with samples of the newest Chicago replacement window products available.

Semko Chicago Replacement Windows - Outstanding Service and Quality

We are proud of our reputation for incredible service and quality.  We stand behind our work and take full responsibility for all of our house window replacement products and installation.  Always remember, go to Hal. We use only the best materials and utilize the finest installation techniques to make your house a home!

Whether you need replacement windows or new windows in Chicago and Chicagoland for your home or a commercial building, you can come to us. Our windows will make your Chicagoland house a great home. Our home windows are quality windows and we have energy efficient windows for your needs.

 Call us today at (773) 631-6666 or fill out a brief form to set up a Chicago replacement window quote.

Chicago's energy efficient replacement windows

Semko's energy efficient windows help with the extreme temperature changes in Chicago and the northwest suburbs. Energy efficient window replacements for your home save money in the long run, and are a wise investment in the age of helping both the environment and your energy costs!

Check out our showcase page to find out what local customer's think about Semko.

We are rated at the top for yelp in Chicago home window replacement companies.

If you are searching for other cities i.e. not Chicago replacement window companies,  please click on the link.


Chicago Replacement Windows

We specialize in exterior house refurbishment including:

- Chicago Replacement Windows

- Chicago Replacement Doors

- Chicago Replacement Siding


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Check out our reviews on Yelp. Leave us a review on Google+

Chicago home windows

Replacement Windows

One of our many styles of high efficient vinyl replacement windows. 

home replacement doors


We carry all styles of french doors, patio doors & steel doors.

vinyl replacement siding


High quality Vinyl siding is a great way to enhance your home's appearance.

4/25/2017Star ActiveStar ActiveStar ActiveStar ActiveStar Activejoseph J. Morton Grove, IL Updated review

Purchased windows and patio door in 2014 and gave them a five star review for product and installation..After 4 yrs, we noticed a small crack in one of the windows, one call and we were told that the window would be replaced at no week later, they arrived and replaced the window in about 10 minutes...Great service is no wonder why they have stayed in business so long...Great customer service and stand by their product..

Original Review 8/26/2014Star ActiveStar ActiveStar ActiveStar ActiveStar Activejoseph J. Morton Grove, IL

Spoke with Jason on the phone and explained to him what we needed....Jason arrived at our home a couple hours after our phone call.....measured our windows and patio door....gave an estimate..and completed the order....Very friendly in explaining how long they had been in business and what the complete cost would be.....Weeks later we got a call to set up a installation time and the crew arrived as scheduled...completed the install.cleaned up all the debris, and explained the operation of the new door and windows....Very pleased with the quality of the work as well as the product....

3/6/2017Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveJack M. Lakeview, Chicago, IL

11/20/2016Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveCrone D. Chicago, IL

10/11/2016Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveSamuel C. Chicago, IL

9/26/2016Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveLynn S. Chicago, IL

10/19/2015Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveDonna S. Harwood Heights, IL

7/21/2016Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveSteve L. Chicago, IL



So you can see why SEMKO is such a breath of fresh air (pardon the pun!).

Semko is amazing- my husband and I had a very bad experience with another window replacement company so we were very wary.  As an experiment we replaced just 3 windows and the results are FANTASTIC.  We had special concerns and they were accomplished - Semko will now do the entire back porch next year.  5 stars. This company listens and is very helpful.  Go local!!

8/18/2016Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveAlan P.  Chicago, IL

I called another company for replacement windows. The salesman was very nice, but he was in my house for almost two hours, and his initial estimate was a bit high. I called Semko. The son of the owner was the salesman (Sorry, can't remember the name). He spent all of fifteen minutes at my house measuring each window, and then he gave me a price. About twenty percent under the other company. The windows were installed two weeks later by a very efficient crew, and the windows themselves are almost exactly the same as the windows another company showed me. Excellent company.

4/6/2016Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveChristine S. Chicago, IL

2/26/2016Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveBertha C. Elmwood Park, IL

12/11/2015Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveDave R. Chicago, IL

11/29/2015Star ActiveStar ActiveStar ActiveStar ActiveStar ActivePinar A. Chicago, IL

10/29/2014Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveTom R. Chicago, IL

10/22/2014Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveMonika S. Arlington Heights, IL


9/16/2016Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveSteve J. Chicago, IL

OUT-KCUFING-STANDING!  If you go anywhere else for windows your a fool.  From the moment I made the first call to Semko to they walked away when the job was done I've been in awe of their professionalism with a no pressure laid back attitude.  The quality of the workmanship and windows is top notch and only took a month to have the windows custom made and only 6 hours to install.  We had priced other companies and they were almost twice as much AND sent a pushy salesman with smarmy tactics like attempting to play off of two people and refusing one on one quotes.  When I need the other half of my house windowed I know where I'm going: Semko

4/14/2015Star ActiveStar ActiveStar ActiveStar ActiveStar ActiveLeslie R. Chicago, IL

Not only did they replace 10 windows in my house, they also created a hole in the wall to add one more. They did a terrific job! The workers are considerate and professional, and the price is very fair. Very good quality windows. No hassle, just straightforward and honest. Jason is a down-to-earth, responsive and friendly representative for this local, family-owned business.