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Reviews From Lasalle
Products & Services
Replacement Windows 
Aluminum Windows
Bay & Bow Windows
Picture Windows
Sliding Windows
Vinyl Windows
Replacement Doors 
Aluminum Doors
Entry & Front Doors
Fiberglass Doors
French Doors
Patio Doors
Siding Doors
Steel Doors
Storm Doors

Premium Replacement Doors & Windows in Lasalle, ON

Happy Customers Surrounding Lasalle, ON
Work Requests

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Lasalle, ON Replacement Windows and Doors

Sentry Windows and Doors is your leading local expert in replacement windows and doors throughout Lasalle and the nearby areas. If you're looking to improve the insulation of your home as well as its overall aesthetic appeal, Sentry Windows and Doors has the wide product selection that can meet your every need. Customer service and satisfaction are our number one priority, and our installers will work with you throughout the entire project to make sure you're satisfied!  

Replacement Windows

At Sentry Windows and Doors, we provide a product line that comes straight from the industry's best manufacturers and stand ready to make an immediate impact. No matter what your reason for replacing your windows, whether it's greater comfort and energy efficiency, less maintenance or improved appearance our professionals are trained to help you find the solution that meets needs. If you're thinking about replacing your windows, consider these benefits that a new installation can bring: 

  • Fewer drafts
  • Less maintenance
  • Reduced noise
  • Energy savings
  • Added security
  • Enhanced curb appeal
  • And More! 

Replacement Doors

Sentry Windows and Doors also installs quality entry and patio doors in custom sizes and finishes. If you're interested in further improving the security of your home or boosting the aesthetic appeal of your exterior, our professionals are ready to handle the process from start to finish. Our goal is to find the selection that perfectly fits your needs and to give you the best experience possible. Our company offers a wide selection of doors, including:

  • Vinyl doors
  • Aluminum doors
  • Fiberglass doors
  • Wood doors
  • Steel doors
  • Entry & front doors
  • Patio doors
  • Sliding doors
  • French doors
  • Storm doors

If you need any replacement windows or doors in Lasalle, ON, call Sentry Windows and Doors today for a free estimate!

Work Requests From Lasalle, ON
Merrill Ave in Lasalle
Looking for quote for 2 storm doors
Carriage Lane in Lasalle
We just need new screens on all of our house windows. We have 10 windows. We aren't sure if you can help us with this. We have contacted another company that has done work for us previously, but it has been months and they still haven't given us a date when they can come by. Please let us know if this is a job you can do. Thanks so much
Oxley Ave. in Lasalle
Original windows in house. some no longer open and close. need estimate on replacing or upgrading.
Golfview Drive in Lasalle
Front Door replacement with possibility of adding window above door
Suzanne in Lasalle
New windows and doors
Serving the following Lasalle, ON postal codes
N9H 0A1, N9H 0A2, N9H 0A3, N9H 0B6, N9H 0B7, N9H 0B8, N9H 0C1, N9H 0C2, N9H 0C3, N9H 0C4, N9H 0C5, N9H 0C6, N9H 0C7, N9H 0C8, N9H 0C9, N9H 0E1, N9H 0E2, N9H 1N9, N9H 1P1, N9H 1T8, N9H 1X6, N9H 1X7, N9H 2A9, N9H 2K6, N9H 2N8, N9H 2N9, N9H 2P5, N9H 2P6, N9H 2P8, N9H 2S8, N9J 0A3, N9J 0A4, N9J 0A5, N9J 0B9, N9J 0C1, N9J 0C2, N9J 0C3, N9J 0C4, N9J 1R3, N9J 1R4, N9J 1W4, N9J 1W5, N9J 2E1, N9J 2E2, N9J 2H3, N9J 2K4, N9J 2K5, N9J 2P7, N9J 2P8, N9J 3G4, N9J 3G5, N9J 3H3, N9J 3H5, N9J 3L4, N9J 3L6, N9J 3L7, N9J 3P9, N9J 3R1, N9J 3X8