Les Grumdahl Window & Siding

Reviews

• BR

  Blake Romenesko

  Jan 23, 2026
  5.0
  They were great! From seeing mixed reviews and hit pieces about Les Grumdahl, I had my doubts. I ultimately chose them because I wanted Marvin Infinity windows and their prices were quite reasonable compared to other quotes I got. They did not disappoint! From working around the historic details and quirks of my old house to my various customization requests, I couldn’t be more pleased. Tim was phenomenal to work with from beginning to end.
• CH

  Connie Hobbs

  Jul 27, 2023
  5.0
  We had almost all of our windows and doors replaced in our house. Les and his employees from the office to the installers and in between were all a pleasure to work with. I’ve had a lot of bad luck with contractors, the work, timelines and cleanliness in the past. Les Grumdahl and his team were wonderful! We would highly recommend and would definitely hire them for future projects!
• JW

  Jeremy W

  Oct 5, 2022
  5.0
  Window installation. There was some issues initially but they came back out and fixed it and it looks great now.
• LF

  Lauren F

  Apr 9, 2022
  5.0
  I used Les Grumdahl Window & Siding to replace 13 windows and my siding on my house. The wait list was long, but they were upfront about that from the start and it was with all the supply chain issues. I ended up having the work done in the winter which was fine. The crew who did the windows were fast and they made sure to clean up after themselves. It was done pretty quickly once it started. The siding was a one man job. He did a fantastic job! My house had been looking old and worn down, but with the new siding and windows, it looks brand new! Les Grumdahl himself took my calls and answered my questions. He made sure to update me about delays and any other updates. I'm super happy with the end product and thought that the money was reasonable and well spent. Definately reccomend Les Grumdahl and his crew to anyone looking for good quality work!
• HM

  Heike McDonald

  Jun 6, 2019
  5.0
  We recently purchased three new windows to replace our old painted shut windows in our new house. The service we got from Les Grumdahl was outstanding, free estimate, good prices, prompt and fast installation. Nice work! Highly recommended !