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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon268
    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

"From beginning to end this was a complete good experience. John came out and showed us the window and explained the process. After doing my research I have found the windows he uses to be excellent quality. Ordered the windows, 12 weeks to the date they were installed. The install was done in half a day. They team was very clean, helpful and complete. They answered all my questions and even let me watch! We noticed a difference within hours of sealing up the windows how cool my second story remained with the Energy Efficient windows in. I cleaned all of them with an easy process of sliding the clips and opening them. What a dream window and only wished we had done this ten years earlier. The windows were 29 years old, solid wood and clad. From the outside you can hardly tell the difference. These were a great purchase, and we are looking forward to having the other 13 windows done with Best Windows."
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

"Cwynar Home Service repaired and replaced several windows at my office. They were prompt with their service, fairly priced and gave excellent communication along the way. I recommend them for any commercial window or glass needs."
Glass replacement
Glass replacement
Glass replacement
Glass replacement
Glass Replacement

+54

14 neighbors recently requested a quote
Avatar for Power Home Remodeling
Power Home Remodeling
4.3(
6,546
)
New Windows - 6 +New Windows - 3-5

Serving Winthrop Harbor, IL and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1992

Free estimates

Warranties offered

"Excellent workmanship and products I have had three installations with Power in the past two years. I first used them for a new roof and gutters. The workers were all knowledgeable in their area of work. Clean up was good although some nails kept showing up over time. Next I had the 2nd floor windows and some 1st floor windows replaced, 9 in total. Installation went well and they cleaned up beautifully afterwards. I love the windows! They are a beautiful and energy efficient product. Lastly, I recently had a bay window replaced in my kitchen with the same type window. The workers ere all friendly and explained what would be done. The area was draped with plastic to cut down on dust. Clean up was excellent inside and outside! The window is beautiful and the framing on the outside of the window matches the other windows and the small roof above the bay window was replaced with the same roofing as the rest of the house. I would choose them again for any future projects."
Double Hung & Double Hung W/ Half Round
Double Hung W/ Half Round
Double Hung W/ Half Round
Double Hung
Double-Hung Window

+24

1640 neighbors recently requested a quote
Recommended by85%of homeowners
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!

Additional Photos
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+84

Response time2 days
Response rate100%
4 neighbors recently requested a quote
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Windows FAQs, answered by experts

If the existing frame around the window sash is completely structurally sound, it's possible to save money by swapping out the sash for a new one instead of getting a new window. Keep in mind that it will be necessary to find a new sash that perfectly matches your existing window structure. In general, consulting a window pro to help you find the right match is the best way to ensure you're doing this project correctly.

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.

Because bay windows are a combination of three windows, there are many options for how wide or tall they can be. That said, individual windows come in standard sizes, and you can use those as a guide for the width and height of your bay window.

The gas between window panes, typically argon or krypton, acts as a barrier to heat transfer. This means it helps keep your home warmer in the winter and cooler in the summer by preventing heat from passing through the glass. This gas layer also reduces condensation by stabilizing the temperature across the window and helps minimize noise. Essentially, it’s all about improving energy efficiency and comfort while lowering those utility bills.

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 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.