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TRUSTED BY WINTHROP HARBOR, IL HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon235
    Verified window services reviews

Top-Rated Window pros in Winthrop Harbor - Updated Nov 2026

Avatar for Best Windows Inc
Best Windows Inc
4.6(
239
)
New Windows - 6 +

Serving Winthrop Harbor, IL and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"I hate writing bad reviews, especially when we had a great experience with them 3 years ago. We had all our windows replaced in 2014. They did a great job installing, price was great. The installers completed job in one day. Had no problems with windows until now. One window is leaking around the wall into our master bedroom. Called John to see if he could have someone come out to look at the window (supposed to have a "lifetime" warranty). First he said it was probably not the window but the caulking around the window(which isn't covered by the warranty) and do I have a ladder to go up (20 ft) to look at it. I told him no and that I would prefer he send someone out to look at it. He asked that I send pictures and my address and he would send "Steve" out to take a look when he is in the area. Three months and still no one out to look at it (had someone else fix the leak). Apparently we are "too far" for anyone to come out. So, just a warning, make sure to be in their local vicinity to have any follow up with any issues after installation. Never mind the lifetime guarantee, isn't worth much if you can't even get anyone out to check the windows. Would be happy to put back the A review I gave them in 2014 if only the "LIFETIME" guarantee was worth anything."
3 lite bay
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+53

Response time5 hrs
14 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for EcoChamp Windows and Siding
EcoChamp Windows and Siding
5.0(
60
)
New Windows - 6 +New Windows - 3-5New Window - Single+9 more

Serving Winthrop Harbor, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Warranties offered

"It went very well Gus explained everything from process, how long it would take and pricing. Once the windows arrived they did the job in 1 day very quickly. Love the new windows and for sure I will call again to complete another project in our home. Great work done. From: Leo & Rosy"
Window Project
Pella Windows in Lincoln Park
Window Project
Pella Windows in Lincoln Park
Window Project

+62

Response time2 days
Response rate100%
12 neighbors recently requested a quote
Avatar for Cwynar Home Service
Cwynar Home Service
4.9(
48
)
Window Glass - Install or Replace

Serving Winthrop Harbor, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"I have been rehabing my moms home to sell and thing have been REALLY stressful. I had two windows that were cracked that I have been looking to get fixed for more than two months. I have had several window companies tell me it was “impossible’ to replace glass panes in thermo sealed windows. I was quoted $10k for one window replacement 😬 Jon showed up like a miracle! He was extremely responsive to my initial inquiry, was onsite promptly to assess the two cracked windows and noticed another window that had a broken seal. He provided a reasonable repair estimate for the three windows and was back to complete the work within three business days! Jon was a lifesaver, his responsiveness allowed me to get the house listed yesterday ! I am SO grateful for Jon!!! If you have windows that are cracked, call Jon to get them repaired!!!"
Glass replacement
Glass replacement
Glass replacement
Glass replacement
Glass Replacement

+54

14 neighbors recently requested a quote
Avatar for 123 Exteriors
123 Exteriors
5.0(
9
)
New Windows - 3-5New Windows - 6 +

Serving Winthrop Harbor, IL and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"We want to thank Dominik for his expertise and advice when choosing our windows. We needed 12 original windows replaced, and he helped us choose windows that give the house a clean, refreshing look. He was very professional and explained the energy benefits we should expect to see."
Window
Avatar for Franos Roofing
Franos Roofing
4.9(
197
)
New Windows - 6 +New Windows - 2New Windows - 3-5

Serving Winthrop Harbor, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Emergency services offered

Welcome to Franos Roofing Wind and Hail damage specialist.The roofer Chicagoland and Northwest Indiana home owners and businesses have trusted more than 10 years to provide full service of both residential and commercial roofing projects.We built our reputation on quality workmanship,reliability and competitive prices. We doing all kinds of roofs from shingles to slate Franos Roofing has the innovative materials and expertise necessary to complete your roof correctly,on time and with in your budget. Beyond roofing Franos offers a full complement of related services to meet the needs of customers throughout Chicagoland and Northwest Indiana.We feature a wide selection of beautiful siding options,as well as an impressive line of replacement gutters,soffit and fascia installations and gutter protection.Family owned and operated company found by Arek Franos in 2007.Our goal is make our customers happy!

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+84

Response time2 days
Response rate100%
2 neighbors recently requested a quote
Avatar for JCA Windows and Gutter Cleaning
JCA Windows and Gutter Cleaning
4.9(
21
)
Window Cleaning

Serving Winthrop Harbor, IL and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

We're a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of Gutter projects, Window cleaning and our services are customizable to each individual project. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

Gutter cleaning
Window and Gutter Cleanin
Window and Gutter Cleanin
Power washing
Power washing

+11

Response time2 days
Response rate86%
1 neighbors recently requested a quote
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Windows FAQs, answered by experts

Basements are generally required to have windows for your safety. At a minimum, windows should provide an egress in the event of a fire. But basement windows do more than offer a way out; basement windows also offer natural light and ventilation in an area of your home that is otherwise dark and musty.

Whether you need a permit to install a bay window depends on the project's scope. Replacing an existing bay window typically does not require a permit. However, if you are adding a new bay window, requirements can vary. Adding a new bay window to the front of your house usually requires a building permit, while adding one to the side or back of your house often does not. It's always best to check with your local municipality to confirm the specific requirements in your area. Additionally, if you live in a historic district, you should consult your neighborhood association to ensure your project complies with their construction guidelines. If you're unsure about the process, a professional can provide guidance.

Yes, it is generally better and more cost-effective to replace all your windows at once. Contractors often lower the per-window labor and material costs for larger projects, saving you money in the long run. Installers may also quote a flat rate for overhead, making multiple small jobs more expensive than one large one.

Replacing all windows simultaneously offers other advantages:

  • Aesthetics and Home Value: It creates a cohesive style and uniform energy efficiency, which is appealing to potential home buyers.

  • Efficiency: The entire replacement process, which can take several weeks, is completed in a single, more efficient project.

However, replacing all windows requires a significant upfront investment. While you can replace just a few windows, experts recommend replacing at least five to eight at a time to avoid high overhead costs. An exception is when a single window is damaged; in that case, it can be replaced on its own.

It is generally recommended to remove window screens for the winter, especially in climates with heavy snow, freezing rain, or frigid temperatures. Removing them helps prevent damage to the screen mesh and frames that can be caused by ice and moisture buildup between the screen and the window. Taking out the screens also allows more natural light and warmth into your home during shorter winter days and makes it easier to clean your windows thoroughly. In warmer climates where harsh weather is not a concern, the decision is more about personal preference; some homeowners prefer the clearer view, while others leave them in for convenience.

Look for stickers at the top or inside of the frame, like in the tracks when the window is open. Some brands also stamp their name onto the frame itself or place it between the panes of glass, although this is less common. If you can’t find the info on the window itself, consider asking your neighbors or HOA.

The Winthrop Harbor, IL homeowners’ guide to window services

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