Testimonials

E.J. – Thank you to you and your crew for a job well done installing the 10 foot front window. I won’t hesitate to suggest your company to friends and neighbours.
- Gail B., Windsor, On

Just wanted to let you know we LOVE the new doors you installed. You and EJ are a pleasure to deal with and the installers were awesome. My husband even mentioned the first thing they asked was if we had pets and if they were safely put somewhere so they wouldn’t get out while the doors were open. Of all the contractors that have been in our house since this renovation process started 3 months ago, they were the first ones to ask that  – and he was impressed. They left the jobsite clean and tidy and explained everything to my husband.
We’ll be back when the time comes to replace the last two living room windows. They are now the only two in our house that are NOT from Great Lakes.
Being that I am in the service industry myself, I know how quick people are to let you know when they are not happy, but we hear so little of when they are. I just wanted to let you know that we were more than happy with your company and its employees.
- Andy and Carolyn S., Windsor, On

Thank you to a wonderful staff with a great product.
My new Renaissance patio door is even nicer than I expected!
- Elenor M., Windsor

Honestly, from the first moment I contacted them, I was delighted and repeatedly surprised by the way each person I dealt with exceeded my expectations.
They were all professional,courteous, on-time, and made the whole process enjoyable.

And on top of that, the product has been exceptional. I am thrilled with the way this company conducted themselves in every step in the process. I highly recommend them. If you need windows or doors, make Great Lakes your first call!
– Ben K., Windsor

Thanks for everything. We love our new front door. We’re really happy with the windows too and the customer service has been first class. Best Regards,
– Heather P and Bill D., Windsor

After deciding to replace the seven windows at the back of our house, we asked friends for recommendations, researched online and visited many window retail businesses.  After our first visit to Great Lakes Windows and Doors, we knew we had found the company for us.  Cathy met us in the showroom and was professional and well-informed.  She answered all our questions and discussed issues we hadn’t considered.  The estimate was done on the spot and we were pleasantly surprised at the cost.
When the day came, the crew was right on time obviously skilled.  The results were wonderful!  We are very pleased with the look and the quality of the windows and installation. 
We will definitely recommend Great Lake Windows and doors to our friends.  Thanks!
– Michelle H., Windsor

I’m sending you a letter to let you know how impressed my husband and I were with our experience with Great Lakes Windows. When we initially met with Cathy she gave me a complete install price on the spot for my new front entry door… no salesman showing up at our door a week later to give us a price…that was a huge bonus for us as we are working people.
The installers were on time did an amazing job and and did a great job cleaning up afterwards. My husband was very impressed with their work ethic. They were finished in record time!
We will definitely recommend them to anyone we know that needs windows and doors replaced. Thanks again to Cathy and all the gang!
– Donna L., LaSalle

We had a 10 year old patio door become completely rotten. Being on a limited budget because we’re retired, we were at a loss of what to do. Great Lakes not only came in to do the replacement work, they also contacted the manufacturer of the original patio door to get them to supply a replacement door at no cost! They not only fought for us, but were clean, on time and did a wonderful job installing the new door!
— Joanne, LaSalle

When we were in the market to have some of our windows & doors replaced in our 90-year-old home, I ‎was referred to E.J. at Great Lakes. After he completed a thorough review of our home, we received a very reasonable price and went ahead with it. The craftsmanship and professionalism of him and his crew was very impressive from start to finish.
I have nothing but greats things to say about their company and I am extremely comfortable referring them to anyone in the market for their services. Thanks!
— Ryan L., Kingsville
Great Northern Insulation

The minute I walked into Great Lakes, I felt like I was with friends.
I told Cathy what I wanted and It was done! And reasonably priced.
The workers who installed my windows and shutters were friendly, fast, and very neat. They know what they’re doing. I just love my new windows and shutters.
I’ve had them here twice and I intend to have them here again to replace my front door. It was a real pleasure to deal with Great Lakes. I would highly recommend them.

— Linda D., Windsor

We are extremely happy with our new front door. It has enhanced the curb appeal of our home immensely. The service provided by Great Lakes was outstanding and we would highly recommend them to our friends and family.
— Ted L., Windsor

Staff and installers are very congenial and willing to answer any question we had. They did such a great job tearing out the brick wall to install a new patio door, and ensuring that it looked as though it has always been a part of the house, that we had them back to replace our other patio door
— Bob M., St. Joachim

A big thank you!
I had been shopping around for new windows for a number of weeks when a friend recommended Great Lakes Windows and Doors. After much consideration and a little trepidation, I gave them the go-ahead.
Yesterday they installed two bedroom windows and a Bay type window. I am so very pleased with the windows overall and with the whole installation process.
The workers were very neat and clean, they used drop sheets throughout the house, and they cleaned up any mess that had been made.
I can already notice a difference in the house. The bedrooms are not nearly as drafty. They even repaired an older window for me at no charge.
THANK YOU to the staff for the excellent service and workmanship that they provided. I highly recommend using this company for new windows and doors.

— David S., Tecumseh

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