4.4 
532 *The Angi rating for Window Service companies in Lannon, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
*The HomeAdvisor rating for Window Service companies in Lannon, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
Last update on February 17, 2026
Serving Lannon, WI and surrounding areas
Approved
In business since 1993
Warranties offered
Small jobs welcome
"These pros provided a clear estimate and when the windows were installed the job was done expertly. We love the new windows!!!"
+39
Serving Lannon, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Warranties offered
"Excellent contractor . Great to work with . B & K replaced the window glass in Five Thermopane windows. The window frames were still good so that is why I chose the glass replacement option. Cost, of course, is then far more reasonable. Our windows now are clear - no fogging anymore."
+36
Serving Lannon, WI and surrounding areas
Approved
Super Service Award Winner
In business since 1986
Free estimates
Warranties offered
"Fantastic service from start to finish. I had several windows installed by Stuart and he was always on time, very efficient and answered any question I had. He always cleaned up when he left for the day. He made sure I knew how the windows work before he left on the last day of the install. This is the second time I trusted Window Tight to install new windows for me. I definitely recommend them to anyone needing new windows."
+22
Serving Lannon, WI and surrounding areas
Approved
In business since 2007
Free estimates
Warranties offered
"The installers never took a break. One worked outside and the other installer carried the new windows to him andcarried all the old windows away. By 4:00 pm they had 8 windows done and working correctly."
+46
Serving Lannon, WI and surrounding areas
Approved (Corporate)
In business since 2006
Free estimates
Warranties offered
"Mr Atkins was very knowledgeable about the windows that he was selling, very friendly. Mr Atkins was not pushing me to buy the windows which I like. Once again thank you for your professionalism. I look forward to getting my new windows installed! Kelly"
+23
Serving Lannon, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2001
Free estimates
Warranties offered
"A very thorough job of installation of the windows. The windows look, and feel MUCH better than Our old windows."
+20
Serving Lannon, WI and surrounding areas
Approved
In business since 2007
Free estimates
Customers say: Terrific value
"I have an older house with some "troublesome" windows. The gentleman did a thorough job of cleaning them. He also was very patient with some of the problem windows. I was very pleased with the care he took in putting screens and storms back in the window frame. I would recommend him highly."
Serving Lannon, WI and surrounding areas
Approved
In business since 2006
Free estimates
Warranties offered
"Mr Atkins was very knowledgeable about the windows that he was selling, very friendly. Mr Atkins was not pushing me to buy the windows which I like. Once again thank you for your professionalism. I look forward to getting my new windows installed! Kelly"
+83
Serving Lannon, WI and surrounding areas
Approved
In business since 2018
Free estimates
Offers commercial services
"He was great! Fairly priced, responded quickly and did a great job replacing our broken windows."
Serving Lannon, WI and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"By far, Window Concepts beat out 3 other local companies in price. I needed new windows and patio door bad, but I didnâ t want to sell my first born to get them! Iâ m very, very pleased with my purchase and the crew who installed them were excellent. They worked together well, very clean and considerate. I will definitely suggest Window Concepts to anyone who needs new windows! Thank you!!!!"
+9
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