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Iowa’s Best Window Co. – Our Manufacturer

The windows we install are manufactured by Great Lakes Windows. Iowa’s Best Window Co. locations have the ability to choose from a few of the top window manufactures in the country, so why Great Lakes? Great Lakes Windows is a branch of PlyGem windows, one of the top 5 window manufacturers in the world. This gives consumers the comfort of knowing that their Iowa’s Best Window Co. lifetime warranty is backed by a manufacturer who has been in business for decades.

Like Iowa’s Best Window Co., Great Lakes has built its reputation on keeping things simple. As one of the most respected vinyl replacement window and patio door brands in the country, Great Lakes Windows have been helping homeowners save on energy costs for almost 40 years. Great Lakes has built a reputation for using state-of-the-art technology, modern equipment, and cutting edge operational techniques. With history backing their products all the way back to 1981, Great Lakes Windows will continue to provide the best high-performing windows in the industry.

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Great Lakes Windows Affiliations

When buying new windows, you want to make sure you’re investing in high-quality products. Windows from Great Lakes Window are affiliated with ENERGY STAR, the Window & Door Manufacturers Association, the National Fenestration Rating Council, the National Accreditation and Management Institute, and a member of the United States Green Building Council. You can trust that the windows and patio doors you purchase from Great Lakes Window are built to last from years to come.

When checking out reviews on Great Lakes Windows, first go to a trusted source – the BBB. Great Lakes Window has A+ rating with the Better Business Bureau. Some other sources – You can also google Great Lakes Windows reviews for real customer experience reviews. Most of Iowa’s Best Window Co. locations nationwide use Great Lakes as their preferred manufacturers as well so check out some of the over 35 locations personal company reviews.

Our Promise

We promise, with a manufacturer like Great Lakes, you’ll always receive top-notch materials at the best price and with a warranty to give you peace of mind.

The Best Rated Window Company in Reinbeck

4.8 Review on google

See Our Reviews

  • Tom & Kent did a great job installing my new windows! And Mike & Tanner did a great job with the white cladding around the windows! They cleaned up everything! The windows look so good! I highly recommend them if you are considering getting new/ replacement windows!

    R Shock
  • 3 windows purchased and installed. Very happy with all aspects of this purchase. Excellent customer service and very personable young men to work with. Tom was excellent as was Tanner. Excellent workmanship. Would highly recommend this company for anyone. You won't be disappointed. Competitive pricing and excellent customer service. Doesn't get any better than that !! Thanks guys !!

    Richard Smith
  • I would recommend these guys to anyone. The dot com guy came and rechecked our measurements before we ordered our windows and the salesman was up front and honest about everything. When they installed the windows they had the upmost respect and honesty out of any crew I have seen. Tanner, the installer, let my kids ask him a million questions and was always happy to answer. If something was wrong they made sure it was fixed the correct way and didnt rush through to get it done. Will definitely be doing business with them in the future.

    Brandon Pecha
  • Fast, efficient, great pricing!

    Eric Landergott
  • The windows on our house had been installed a bit incorrectly leaving some exposed wood and a terrible caulk job. We had Tom come over and install some new window caps around the trim of the windows. They were able to come and complete the job in a matter of a few hours (15 or so windows). They installed a storm door for us as well and to top it all off even hauled away our cardboard recycling for us. That's what I call going the extra mile. Call these guys, you won't regret it.

    Nathan Buss
  • Absolutly great people to do business with!!!!! good quality products , we couldn't be happier.

    Dan Rice
  • Very happy with the windows n Service. The installation crew did a great job very professional. looks great

    Jason Pedersen
  • Kent and his crew were very professional and easy to work with through the whole process of getting information and recommendations for getting our new doors for our house! It was a very smooth process from initial inquiry on the doors through the completion of the installation! I would highly recommend using this company if you are looking to get new doors and windows!

    Aaron Middendorf