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
"Very friendly. Windows came in before expected. Steve was right on time."
+39
Serving Lannon, WI and surrounding areas
Approved
Super Service Award Winner
In business since 1986
Free estimates
Warranties offered
"Everything went very smoothly. Our installers were: Luke, Colin, Chris, and Hector. They were at our place from November 2-5. All of them were very polite. The game plan we were given at the outset of the project went exactly as proposed. There was one minor glitch with the bay window installment, but that was corrected on December 16th, and of course it was a superb job. Since the installment, we've been extremely happy with the appearance of the new windows. We will need to wait for spring to start opening and closing them. We can't wait...no more sticks to hold up the windows!! All in all, looking back at the research we did on new windows, eventually having Sam over to give his presentation, and ultimately choosing WeatherTight, we are very satisfied with our decision!! Thank you!!"
+22
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
In business since 2007
Free estimates
Warranties offered
"They did a great job for a several windows installation. They have a reasonable prices and the materials they used are excellent quality. The people they have are pro's and top notch and they cleaned up their mess."
+46
Serving Lannon, WI and surrounding areas
Approved (Corporate)
In business since 2006
Free estimates
Warranties offered
"great experience, initially had two windows replaced in upper level, they look and work great, so good that i have already hired Empire again for the rest of my windows"
+23
Serving Lannon, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2001
Free estimates
Warranties offered
"The installers were wonderful. Friendly, knowledgeable, fast and CLEAN! Youâ d barely know theyâ d been there!. And our sales person really helped us understand the best, but not most expensive windows for our house. If I need more windows they will be back!"
+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 2018
Free estimates
Offers commercial services
"Excellent service and work done in a timely manner. Would most definitely use JB GLASS for future window repairs and will be recommending them to all our friends. Great job Joe! Adrian Voeller Port Washington, WI"
Serving Lannon, WI and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"very helpful providing info on window options. happy with the pricing."
+9
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