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TRUSTED BY SULLIVAN, WI HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon72
    Verified window services reviews

Find Window pros in Sullivan

Avatar for B&K Glass and Door

B&K Glass and Door

4.97(
198
)
Approved Pro

B&K Glass and Door

4.97(
198
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
8 years of experience

Why replace the whole window when you can replace Just the Glass! Signs of a seal failure can be seen as "foggy" glass or a purple hue on the outside. A closer look can reveal mold spots or "dirty" glass that is on the inside of the thermopane. In most cases, just the glass can be replaced for a fraction of the cost of new windows. We provide free estimates and our lead time is short. We aim to have your project complete in 2-3 weeks from approval. Our glass is custom ordered locally right here in Wisconsin. Need a storm door installed or replaced? We can help with that too. We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We specialize in glass installation and repair. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"The guys were quick and professional Awesome job! We will be recommending to family and friends "

Clarence C on October 2025

Why replace the whole window when you can replace Just the Glass! Signs of a seal failure can be seen as "foggy" glass or a purple hue on the outside. A closer look can reveal mold spots or "dirty" glass that is on the inside of the thermopane. In most cases, just the glass can be replaced for a fraction of the cost of new windows. We provide free estimates and our lead time is short. We aim to have your project complete in 2-3 weeks from approval. Our glass is custom ordered locally right here in Wisconsin. Need a storm door installed or replaced? We can help with that too. We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We specialize in glass installation and repair. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"The guys were quick and professional Awesome job! We will be recommending to family and friends "

Clarence C on October 2025


Avatar for Infinity Exteriors LLC

Infinity Exteriors LLC

4.77(
543
)
Approved Pro

Infinity Exteriors LLC

4.77(
543
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
28 years of experience

At Infinity Exteriors, we set ourselves apart through our unwavering commitment to quality, craftsmanship, and customer satisfaction. Our comprehensive services include roofing, siding, windows, and gutters, all delivered with meticulous attention to detail. Our team consists of seasoned Project Advisors, Managers, and Installers who bring years of industry experience, training, and a dedication to high standards, ensuring every project meets our strict quality guidelines. What makes us truly unique is our focus on each customer’s specific needs. We provide honest and free estimates that help homeowners make informed decisions, backed by transparent pricing and detailed project timelines. Infinity Exteriors’ team members are community-centered and customer-focused, often involved in local events, youth coaching, and charitable initiatives. This connection to our communities fosters a deeper commitment to integrity and personalized service. To guarantee the quality of our work, we use premium materials from trusted manufacturers and conduct thorough inspections at every project phase. Our commitment to excellence is further reinforced by industry-leading warranties, giving customers peace of mind that their investment is protected. When you choose Infinity Exteriors, you're partnering with a team dedicated not just to completing the job but to exceeding expectations at every turn.

"Infinity Exteriors did a great of not only replacing my roof but also repairing the roof, especially around the Skylights. Anthony help me with the adjuster and inspection of the roof. Isaac and his crew were so wonderful in communicating what had to be done and the project was done in one day. Just a great job!"

Diana T on November 2025

At Infinity Exteriors, we set ourselves apart through our unwavering commitment to quality, craftsmanship, and customer satisfaction. Our comprehensive services include roofing, siding, windows, and gutters, all delivered with meticulous attention to detail. Our team consists of seasoned Project Advisors, Managers, and Installers who bring years of industry experience, training, and a dedication to high standards, ensuring every project meets our strict quality guidelines. What makes us truly unique is our focus on each customer’s specific needs. We provide honest and free estimates that help homeowners make informed decisions, backed by transparent pricing and detailed project timelines. Infinity Exteriors’ team members are community-centered and customer-focused, often involved in local events, youth coaching, and charitable initiatives. This connection to our communities fosters a deeper commitment to integrity and personalized service. To guarantee the quality of our work, we use premium materials from trusted manufacturers and conduct thorough inspections at every project phase. Our commitment to excellence is further reinforced by industry-leading warranties, giving customers peace of mind that their investment is protected. When you choose Infinity Exteriors, you're partnering with a team dedicated not just to completing the job but to exceeding expectations at every turn.

"Infinity Exteriors did a great of not only replacing my roof but also repairing the roof, especially around the Skylights. Anthony help me with the adjuster and inspection of the roof. Isaac and his crew were so wonderful in communicating what had to be done and the project was done in one day. Just a great job!"

Diana T on November 2025


Avatar for Wasco Windows

Wasco Windows

4.65(
132
)
Approved Pro

Wasco Windows

4.65(
132
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
68 years of experience

WASCO Windows opened in Milwaukee in 1957 as Wisconsin Aluminum Supply Company, and was purchased by Dave Paulus in 1983. At that time, the company manufactured aluminum storm windows, siding and awnings. Under Paulus’ direction WASCO became the first company in this area to manufacture then-new vinyl replacement windows. Since 1983 the Paulus family has transformed WASCO into a company that leads the industry in manufacturing and installing highly energy efficient window products, engineered for Wisconsin’s unique climate.

"Needed warranty repair on 11 windows. The Appleton service manager drove up to me, did all the work onsite. quick and efficient. Windows are like new again."

Mark M on October 2025

WASCO Windows opened in Milwaukee in 1957 as Wisconsin Aluminum Supply Company, and was purchased by Dave Paulus in 1983. At that time, the company manufactured aluminum storm windows, siding and awnings. Under Paulus’ direction WASCO became the first company in this area to manufacture then-new vinyl replacement windows. Since 1983 the Paulus family has transformed WASCO into a company that leads the industry in manufacturing and installing highly energy efficient window products, engineered for Wisconsin’s unique climate.

"Needed warranty repair on 11 windows. The Appleton service manager drove up to me, did all the work onsite. quick and efficient. Windows are like new again."

Mark M on October 2025


Avatar for Empire Home Remodeling

Empire Home Remodeling

4.96(
72
)
Approved Pro

Empire Home Remodeling

4.96(
72
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

Empire Home Remodeling, Inc specializes in windows, siding, roofing, creativity, customer service and project management necessary for success. Our most satisfied customers are those who want a company to manage their project, leaving the problem solving and details to the professionals, thus allowing them a worry-free experience.

"Alex was our salesperson he did a great job of showing us what needed to be done regarding our project, (which was installing a new rear door). He was very understanding of our needs and wants. They were the first company who came out and we went with them without getting any estimates from any other companies. GREAT JOB."

Jeff M on March 2025

Empire Home Remodeling, Inc specializes in windows, siding, roofing, creativity, customer service and project management necessary for success. Our most satisfied customers are those who want a company to manage their project, leaving the problem solving and details to the professionals, thus allowing them a worry-free experience.

"Alex was our salesperson he did a great job of showing us what needed to be done regarding our project, (which was installing a new rear door). He was very understanding of our needs and wants. They were the first company who came out and we went with them without getting any estimates from any other companies. GREAT JOB."

Jeff M on March 2025


Avatar for Empire Home Remodeling, Inc.

Empire Home Remodeling, Inc.

4.83(
82
)
Approved Pro

Empire Home Remodeling, Inc.

4.83(
82
)
Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
19 years of experience

With over 25 years of experience in the remodeling industry, Empire Home Remodeling, Inc., is your industry leader in the Milwaukee metro area. We pride ourselves on our extreme professionalism and attention to detail. As a professional company, you can trust that we will treat your home as we would treat our own. Our customer satisfaction guarantee will assure you that we will not leave your property until you are completely satisfied with our work. Give us a call today, we look forward to working with you!

"Amazi g service a d follow up. Kept us informed all throughout the entire process. Highly recommended."

Betty E on March 2025

With over 25 years of experience in the remodeling industry, Empire Home Remodeling, Inc., is your industry leader in the Milwaukee metro area. We pride ourselves on our extreme professionalism and attention to detail. As a professional company, you can trust that we will treat your home as we would treat our own. Our customer satisfaction guarantee will assure you that we will not leave your property until you are completely satisfied with our work. Give us a call today, we look forward to working with you!

"Amazi g service a d follow up. Kept us informed all throughout the entire process. Highly recommended."

Betty E on March 2025


Avatar for Mad City Windows & Baths

Mad City Windows & Baths

4.74(
624
)
Approved Pro

Mad City Windows & Baths

4.74(
624
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
24 years of experience

To learn about Mad City Windows and its history, you need to start back in 1998 when our family-owned company first opened its doors and changed the face of home remodeling in Wisconsin. From the beginning, our business has been built on a foundation of friendship and trust and, in return, local homeowners have come to know they can place their trust in us. In order make certain that we consistently earn that trust, we are dedicated to ensuring the expert, seamless delivery of high-quality products and remodeling solutions to homeowners throughout our service area. Today, we expand our home remodeling expertise across Wisconsin, Minnesota, Iowa and Illinois. With over 50,000 completed projects, we take our 2+ decades of experience to serve the communities of Minnesota, Iowa and Illinois. They can expect our highest standard of service and professionalism.

"High pressure sales person which ended up with a mismatch of the rest of my bathroom. They refuse to make it right. . I would recommend that you go with a different company. "

Karen P on November 2025

To learn about Mad City Windows and its history, you need to start back in 1998 when our family-owned company first opened its doors and changed the face of home remodeling in Wisconsin. From the beginning, our business has been built on a foundation of friendship and trust and, in return, local homeowners have come to know they can place their trust in us. In order make certain that we consistently earn that trust, we are dedicated to ensuring the expert, seamless delivery of high-quality products and remodeling solutions to homeowners throughout our service area. Today, we expand our home remodeling expertise across Wisconsin, Minnesota, Iowa and Illinois. With over 50,000 completed projects, we take our 2+ decades of experience to serve the communities of Minnesota, Iowa and Illinois. They can expect our highest standard of service and professionalism.

"High pressure sales person which ended up with a mismatch of the rest of my bathroom. They refuse to make it right. . I would recommend that you go with a different company. "

Karen P on November 2025


Avatar for Home-Pro Handyman

Home-Pro Handyman

5.00(
12
)
Approved Pro

Home-Pro Handyman

5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 years of experience

With years of experience serving the area, we are your solution for all your (PWC) needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Satisfaction guaranteed!

"Matt is good with communication. Did work for a fair price."

Paul D on April 2024

With years of experience serving the area, we are your solution for all your (PWC) needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Satisfaction guaranteed!

"Matt is good with communication. Did work for a fair price."

Paul D on April 2024


Avatar for Bulldog Builders LLC

Bulldog Builders LLC

4.65(
55
)
Approved Pro

Bulldog Builders LLC

4.65(
55
)
Approved Pro
Customers say: Quality work
11 years of experience
Free onsite estimate

We are a full service construction company based in Southeastern Wisconsin. We specialize in insurance restoration work including: wind, hail, tornado, fire and water losses. The owner is an ex 20 year property claims adjuster that can navigate you through the complex world of property claims and offer superior service.

"It was by far the best contracting company I have ever worked with. The project manager Andy was very knowledgeable, professional and stayed with my project until the fininsh. If I had any questions not only did he answer them but came to the house every step of the way. I can't say enough about this company - they were great"

c p on May 2025

We are a full service construction company based in Southeastern Wisconsin. We specialize in insurance restoration work including: wind, hail, tornado, fire and water losses. The owner is an ex 20 year property claims adjuster that can navigate you through the complex world of property claims and offer superior service.

"It was by far the best contracting company I have ever worked with. The project manager Andy was very knowledgeable, professional and stayed with my project until the fininsh. If I had any questions not only did he answer them but came to the house every step of the way. I can't say enough about this company - they were great"

c p on May 2025


Avatar for Exterior Pros, LLC

Exterior Pros, LLC

4.56(
36
)
Approved Pro

Exterior Pros, LLC

4.56(
36
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
13 years of experience

We are a family owned home improvement company out of Sussex Wisconsin. We service Waukesha, Milwaukee, Washington, & parts of Ozaukee, Dodge, Racine, and Kenosha counties. We focus on the quality products we install & service, while maintaining a high level of customer service. We are proud to be recognized as a GAF Master Elite Contractor for roofing projects. We also provide fantastic siding & windows, as well as entry doors. We also specialize in bathroom and shower areas, converting tubs to showers or showers to tubs. Beautiful acrylic shower surrounds or tub liner inserts make any old bathroom wet space new again. We work efficiently with our resources to ensure your project is completed on time and on budget. We bring old-world, quality craftsmanship to every unique project we take on. We are licensed and insured & look forward to building strong, long-lasting relationships with our clients and guarantee your satisfaction. Call today for a Free Estimate 262-456-3530

"Very good team of worker, and efficient! All responsibility were cover by the group! A bit hard to communicate, but was able to get a understanding met! Very happy and impressed! Need a bit more focus on clean up, and keeping neighbors in mind! All in all a Great Job!!"

Keith S on July 2023

We are a family owned home improvement company out of Sussex Wisconsin. We service Waukesha, Milwaukee, Washington, & parts of Ozaukee, Dodge, Racine, and Kenosha counties. We focus on the quality products we install & service, while maintaining a high level of customer service. We are proud to be recognized as a GAF Master Elite Contractor for roofing projects. We also provide fantastic siding & windows, as well as entry doors. We also specialize in bathroom and shower areas, converting tubs to showers or showers to tubs. Beautiful acrylic shower surrounds or tub liner inserts make any old bathroom wet space new again. We work efficiently with our resources to ensure your project is completed on time and on budget. We bring old-world, quality craftsmanship to every unique project we take on. We are licensed and insured & look forward to building strong, long-lasting relationships with our clients and guarantee your satisfaction. Call today for a Free Estimate 262-456-3530

"Very good team of worker, and efficient! All responsibility were cover by the group! A bit hard to communicate, but was able to get a understanding met! Very happy and impressed! Need a bit more focus on clean up, and keeping neighbors in mind! All in all a Great Job!!"

Keith S on July 2023


Ken Abrahamson Services

4.76(
85
)
Approved Pro

Ken Abrahamson Services

4.76(
85
)
Approved Pro
Customers say: Quick response
22 years of experience
Free onsite estimate

Abrahamson Services provides a wide range of services to the 4 county Milwaukee area. Anything from windows, doors, roofs, gutters/toppers/cleaning, to roof raking, ice removal and interior work

"Ken was fantastic from start to finish. I hired him to remove an old basketball hoop, pour new cement, and install a new one. The job turned out to be much tougher than expected—the old cement was nearly impossible to break up and the clay ground was hard to dig deeper for the required dept —but Ken handled it like a pro, using a jackhammer and digging through hard clay soil without complaint. Despite the extra work and materials needed, he stuck to his original price even when I asked to pay him more, which speaks volumes about his integrity. He returned a few days later to assemble the hoop, and the final result was perfect—every measurement was spot-on. Ken went above and beyond, and I wouldn’t hesitate to hire him again. Highly recommended!"

Jeffrey M on May 2025

Abrahamson Services provides a wide range of services to the 4 county Milwaukee area. Anything from windows, doors, roofs, gutters/toppers/cleaning, to roof raking, ice removal and interior work

"Ken was fantastic from start to finish. I hired him to remove an old basketball hoop, pour new cement, and install a new one. The job turned out to be much tougher than expected—the old cement was nearly impossible to break up and the clay ground was hard to dig deeper for the required dept —but Ken handled it like a pro, using a jackhammer and digging through hard clay soil without complaint. Despite the extra work and materials needed, he stuck to his original price even when I asked to pay him more, which speaks volumes about his integrity. He returned a few days later to assemble the hoop, and the final result was perfect—every measurement was spot-on. Ken went above and beyond, and I wouldn’t hesitate to hire him again. Highly recommended!"

Jeffrey M on May 2025

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FAQs for window service projects in Sullivan, WI

If you have a problem with your window, such as broken glass, minor leaks, or a problem with your window being stuck, repairing the broken part might be a cheaper option than replacing the entire window. However, if you have a deteriorating window frame or major leaks, buying a new window will be the better long-term solution.

Window replacement can become costly, especially if you’re replacing your whole home. There are a few steps you can take to help save money on the bottom cost while still giving your windows a facelift. 

  • Replace multiple windows at once to bundle your purchase 

  • Inquire about discounts, coupons, or special offers

  • Consider window repair as soon as you see damage to help prevent the need for replacement

  • Maintain your windows often by inspecting your windows for drafts, leaks, and cracks

There are certain window repairs that are cost-effective to DIY and relatively simple for homeowners to tackle themselves. Tasks like replacing a screen, replacing a lock, or sealing a window are typically under $30 and take minimal time to do yourself. However, if you need to replace your window or repair a broken double pane, it’s best to call in a professional window replacement installer to lend a hand. Replacing the majority or all of the windows in your home is a time consuming job and best left to a professional.

Window replacement costs between $180 and $410 per window, or an average of $280 per window. However, your specific replacement job could cost as little as $100 or as much as $750. Factors such as frame material, the number of windows you need, and the type of glass you order all impact the overall cost. For example, simple double-glazed windows will cost $3 to $6 per square foot, but the stronger tempered glass ranges from $12 to $14 per square foot.

The time it takes to replace a window is a total of four to 15 weeks. This time includes your initial consultation, appointments for measuring, as well as ordering and manufacturing your windows. For a smaller job, you can expect the total timeline to be on the shorter end, but for a whole house window replacement, it might take longer (or be split into multiple install appointments). Once your windows are created and ready to be installed, your window installer will take 30 to 60 minutes per window to install.

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.