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4.6

(154 reviews)

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Avatar for Wasco Windows
Wasco Windows
4.6(
157
)

Serving Sullivan, 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++"
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+7

Response time2 days
13 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for B&K Glass and Door
B&K Glass and Door
5.0(
208
)

Serving Sullivan, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Small jobs welcome

"Brian and Kurt were great. We had our 30 + year old Anderson windows removed and replaced with new glass. This is much less expensive than a full window replacement, and is possible when the basic window frame is still in good condition. Super happy with the result."
Calhoun Residence
Calhoun Residence
Calhoun Residence
Calhoun Residence
Calhoun Residence

+36

Response time5 hrs
Response rate86%
76 neighbors recently requested a quote
Avatar for Mad City Windows & Baths
Mad City Windows & Baths
4.4(
830
)

Serving Sullivan, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"We replaced the windows in our 1933 home through the services of MadCity Windows. From the initial contact with their sales representative to final installation, the company provided top notch professional work. With the draft from the old windows and the cold of the glass, we are already saving on our energy bills. Our house had old, large windows, so they had to be custom made. As an industrial designer and interior designer, we find our windows to be of excellent quality."
windows
siding
siding
siding
windows

+20

Response time10 mins
4983 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Empire Home Remodeling, Inc.
Empire Home Remodeling, Inc.
4.7(
120
)

Serving Sullivan, WI and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"Met with Alec about 3 windows. He was so enthused and confident about the windows his company sells, we agreed to go with them. Price was good, time out for delivery seemed good. Alec was very easy to work with, explained everything we needed to know. Thanks and can't wait for the windows."
Asphalt Roof
Basement Hopper Windows
Bay & Bow Windows
Casement & Awning Windows
Concrete Driveway

+83

Response time1 day
78 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Empire Home Remodeling
Empire Home Remodeling
4.7(
87
)

Serving Sullivan, 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"
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+9

Response time2 days
Response rate94%
23 neighbors recently requested a quote
Avatar for 5 Star Window Cleaning LLC
5 Star Window Cleaning LLC
4.7(
18
)

Serving Sullivan, WI and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"5 Star Window Cleaning is by far the most professional window cleaning business I’ve ever had the pleasure to hire. Mr. Orr is very professional and pays very close attention to detail. I highly recommend 5 Star Cleaning to everyone. You will not be disappointed!"
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Response time1 day
Response rate99%
1 neighbors recently requested a quote
Avatar for Renewal by Andersen
Renewal by Andersen
3.8(
124
)

Serving Sullivan, WI and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2007

Free estimates

Warranties offered

"Renewal by Andersen of Wyoming did an incredible job with installing windows in our home. Thank you to the team who did the install and to the company for creating these exceptional windows."
Brighten up your office space!
City Apartments
Create an oasis in the primary bedroom
Create a nice beach view
Floor to ceiling sunlight

+2

Response time10 mins
5646 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Infinity Exteriors, LLC
Infinity Exteriors, LLC
4.9(
21
)

Serving Sullivan, WI and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Warranties offered

Infinity Exteriors protects communities from unscrupulous contractors by delivering top-quality roofing, siding, windows, and gutters with integrity and precision. Our expert team of Project Advisors, Managers, and Installers ensures every project meets the highest standards. We provide honest, free estimates, transparent pricing, and detailed timelines so homeowners can make informed decisions. Deeply rooted in our communities, we support local events, youth programs, and charitable initiatives. Using premium materials from trusted manufacturers and backed by industry-leading warranties, we guarantee long-lasting results. With thorough inspections at every phase, we ensure superior craftsmanship and customer satisfaction. When you choose Infinity Exteriors, you're not just upgrading your home—you’re partnering with a company dedicated to protecting your investment and installing peace of mind for years to come.

LP SmartSide
LP SmartSide
LP SmartSide
LP SmartSide
LP SmartSide

+16

Response time5 days
14 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Ridge Top Exteriors
Ridge Top Exteriors
4.3(
198
)

Serving Sullivan, WI and surrounding areas

Approved (Corporate)

In business since 2002

Free estimates

Warranties offered

"The sales person, Kyle Walsh, was friendly, knowledgeable, on time and gave us a good price with no up-selling. If you want quality windows without being had, definitely give them a call."
Aging siding Before Photo
Renewed Siding After Photo
128 neighbors recently requested a quote
Recommended by92%of homeowners
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Windows questions, answered by experts

Adding windows to a house is expensive. Budget roughly $5,800 to add a single window, and double or triple that to add two or three. In some cases, adding a single window can exceed $20,000, depending on the type of exterior wall, the size of the window, the type of window, local permit costs, and other factors.

The maximum protruding distance allowed for a bay window is determined by its flank angles. 30-degree flanks can extend about 13 to 14 inches. If the angle is 45 degrees or larger, then the bay window can stick out about 19 inches. If the window extends too far out, it would cause structural instability and safety concerns.

Sometimes, you can buy windows directly from the manufacturer, and it may be cheaper than buying through a third party or wholesaler. Manufacturers may also offer more options, including custom shapes and features, or better warranties if you purchase through them directly. 

However, some companies limit the ability to buy from them, especially if you need standard pre-fabricated sizes, so don’t expect this service from every manufacturer.

Garden windows last about 15 to 30 years, depending on the materials, ongoing maintenance, and local climate. Fiberglass and wood windows tend to have the longest life spans as long as you keep up with cleaning, lubricating, and refinishing them. Make sure to inspect your windows about once a year for signs of trouble, like worn-out seals, frame damage, or cracks in the panes.

The rough opening refers to the framed space in the wall where the window will be placed. That means the full size of the space will be filled with both glass and frame once the new window is installed. For a standard window, a rough opening adds 1/2 inch to 3/4 inch to both the length and width.

The Sullivan, WI homeowners’ guide to window services

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