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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon532
    Verified window services reviews

Top-Rated Window pros in Lannon - Updated Nov 2026

Avatar for Weather Tight Corporation
Weather Tight Corporation
4.5(
545
)
New Windows - 6 +New Windows - 3-5New Window - Single+9 more

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!!"
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+22

Response time12 hrs
Response rate100%
14 neighbors recently requested a quote
Avatar for B&K Glass and Door
B&K Glass and Door
5.0(
210
)
Window Glass - Install or Replace

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."
Calhoun Residence
Calhoun Residence
Calhoun Residence
Calhoun Residence
Calhoun Residence

+36

Response time5 hrs
Response rate86%
74 neighbors recently requested a quote
Avatar for HomeSealed Exteriors, LLC
HomeSealed Exteriors, LLC
4.8(
168
)
New Windows - 6 +New Windows - 3-5New Window - Single+9 more

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."
Additional Photos
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+46

Response time1 day
105 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Empire Home Remodeling
Empire Home Remodeling
4.7(
90
)
New Windows - 3-5New Windows - 2New Windows - 6 ++7 more

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"
Before
After
Before
After
Before

+23

Response time2 days
Response rate100%
10 neighbors recently requested a quote
Avatar for Mad City Windows & Baths
Mad City Windows & Baths
4.4(
838
)
New Windows - 6 +New Windows - 3-5New Windows - 2

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!"
windows
siding
siding
siding
windows

+20

Response time10 mins
7602 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Squeegee Wonders
Squeegee Wonders
4.8(
31
)
Window Cleaning

Serving Lannon, WI and surrounding areas

Approved

In business since 2007

Free estimates

Customers say: Terrific value

"They were very pleasant and very meticulous. My windows have never been this clean. They cleaned the windows, screens and wiped out the window wells. Were there for a long time but cannot really complain as they provided a wonderful service!"
Commercial Window Cleanin
Window Cleaning
Occasional Window Cleanin
Recommended by100%of homeowners
Avatar for Empire Home Remodeling, Inc.
Empire Home Remodeling, Inc.
4.7(
120
)
New Windows - 6 +New Windows - 3-5

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."
Asphalt Roof
Basement Hopper Windows
Bay & Bow Windows
Casement & Awning Windows
Concrete Driveway

+83

Response time1 day
165 neighbors recently requested a quote
Recommended by86%of homeowners
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Windows FAQs, answered by experts

Bay windows and garden windows differ in both size and window angle. Garden windows are smaller than bay windows and extend from the house at 90-degree angles, creating a box-like shape. Bay windows, often much larger than garden windows, consist of three windows set at 25- to 45-degree angles to jut out from your home.

When it comes to your pocket, opting for energy-efficient windows can lead to an average of 12% in energy bill savings. That totals to yearly energy savings between $100 and $600. However, the exact amount you’ll save hinges on factors like your local climate and the number of windows in your home.

Most manufacturers have their name imprinted somewhere on the window, such as the spacer bar, hardware, or frame. Other manufacturers will include an identification number printed on the glass itself. If you’re unable to find either of these, then your window was manufactured locally (oftentimes called a “shop window”). 

With a manufacturer name (or even better, the identification number) you can attempt to research the information to find out when the product was made. Keep in mind this won’t tell you when the window was installed on your home, but can get you close.

To ensure the longevity and smooth functioning of new windows, regular maintenance is essential. This includes cleaning the glass and frames, inspecting seals for leaks or damage, and reapplying caulking as needed. It is also important to lubricate all moving parts and operating mechanisms to ensure they continue to operate smoothly.

Clean with non-abrasive cleaners and a soft cloth, avoiding ammonia-based products that can degrade the film.

The Lannon, WI homeowners’ guide to window services

From average costs to expert advice, get all the answers you need to get your job done.