Les Grumdahl Window & Siding Staff,

We have a whole new, uplifting feeling about our day-to-day life due to the beautiful work done on our home by you.

We were guided through the selection process for windows and siding by patient, knowledgeable staff. There were so accommodating, with samples for color and style selection and accurate pricing information. Thank you. We are so satisfied with the design results.

On the window replacement and siding preparation crew, chief Jamie inspired total confidence in his accuracy and expertise. We were happy to have been able to utilize a quality Minnesota product in the Marvin Window EverWood Infinity Complete Replacement Units.

The U.S. Seamless Steel siding in a natural grain TruCedar finish is even more handsome than we thought it would be, and the trim work is perfect. During the application of our new siding Terry & Paul worked together as one! Remarkable! Chief Terry framed out our older, lower lever windows as only an innovative master craftsman could have done.

The courtesy and diligence of your crews was exceptional and there was careful, precise workmanship throughout.

We don't have what some would call a "fancy" place, but your makeover makes us feel like we do! Thank you so very much, one and all.

- Gary & Ellen H.


Thank you. We love the siding on our house and garage. Terry is a skilled craftsman! He is friendly and courteous. 

- Paul & Mary

Ryan, Jamie, & LGWS

Thank you very much for installing a new window in the snack shack at the  rink. Your kindness and generosity are greatly appreciated.

- Sincerely, Jes (Two Harbors Youth Hockey)

Les & Team,

Duane and I can't thank you enough for your quick response to our need for a contractors help! When we saw the extensive damage when opening up our wall - we knew it was beyond a homeowner's repair job. You guys were amazing! Thank you so much for coming quickly to assess the problem and put a plan in place for the repairs and doing the work quickly! 

You guys are the best! - Duane & Mel

Les Grumdahl & "Crew",

We want to thank you for the beautiful and functional windows. Being that this was our second window purchase from you, we were still pleased with your process. 

Your "crew" was outstanding, they were friendly, respectful, and fun to have around during the process. Their workmanship and attention to detail was appreciated and completed to perfection. 

Thank you for your honesty, integrity, and beautiful product. It was indeed a pleasure to do business with you and your crew.

Sincerely, Bob & Darlene D. (March 2018)


March 14th, 2019

Hi Les,

I want to thank you for replacing our living room window last December. we were shocked to return home from being away for 10 days and to have the house coldand the furnace running. you had the solution and didn't hesitate to make it right. 

I hope you have a pleasant spring and a prosperous summer season.

My regards,


June 3rd, 2019

Thanks, your team did a great job!

Dave & Peggy B.

I purchased gutters and a window, both installed quickly and correctly. Very good service and prices.

- Andrew