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 2000
Free estimates
Warranties offered
"Milwaukee Windows was fantastic! They were easy to work with and professional during the whole process. We absolutely love our new windows. We highly recommend Milwaukee Windows!"
+5
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
In business since 1957
Free estimates
Warranties offered
"Working with Wasco was a great experience all around, both sales and installation. We intend to use them again in the future to replace additional windows. They were incredibly knowledgable and professional. We would rate them an A++"
+7
Serving Lannon, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Small jobs welcome
"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
"We love our new front window and siding. It looks like a brand new house."
+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
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
"They really go after you for the sale but after the sale is made they really fall apart. I got an email that my windows were ordered over a week after I ordered them, and an email 5 or 5 weeks later saying they came in. It took them another month to install them. Nearly all the quotes I got were the same but Empire used ?sign now? tactics to get my sale. If I could go back I would not have signed for the small discount and I would have gone with another company offering the same price with no pressure. My windows are fine and the subcontractors that they sent to install them were friendly."
+83
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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