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TRUSTED BY CORTLAND, IL HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon78
    Verified window services reviews

Verified Reviews for Window Service pros in Cortland, IL

*The Angi rating for Window Service companies in Cortland, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.

*The HomeAdvisor rating for Window Service companies in Cortland, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.

Last update on May 10, 2026

Find Window pros in Cortland

Avatar for Windo-Well Cover Company
Windo-Well Cover Company
4.9(
56
)
Window Well Covers - Install or Repair

Serving Cortland, IL and surrounding areas

Approved

In business since 1957

Free estimates

Credit card accepted

"I highly recommend Windo-Well Cover Co. They were here when they said they would be, came prepared do the job even if it rained, and went above and beyond by cleaning out the window well before installing the cover. I am happy with the look of the cover, but am especially pleased with the strenth and durability of the cover. We will use them again to cover additional window wells."
Custom made to any size.
open wells are unsafe
special situation cover
"Z" Flashing
On paver bricks

+9

Response time10 hrs
Recommended by98%of homeowners
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Avatar for F and A Window Cleaning
F and A Window Cleaning
5.0(
28
)
Window Cleaning

Serving Cortland, IL and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Prompt and professional window cleaning. They went above and beyond and our windows looked great"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+31

Response time7 hrs
Response rate100%
Recommended by100%of homeowners
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Avatar for Mad City Windows & Baths
Mad City Windows & Baths
4.4(
832
)
New Windows - 6 +New Windows - 3-5New Windows - 2

Serving Cortland, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"A very thorough job of installation of the windows. The windows look, and feel MUCH better than Our old windows."
windows
siding
siding
siding
windows

+20

Response time10 mins
6987 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Renewal by Andersen
Renewal by Andersen
3.8(
126
)
New Windows - 6 +New Windows - 3-5New Windows - 2

Serving Cortland, IL and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2007

Free estimates

Warranties offered

"The installers were great. The salesperson made promises that he did not keep and he missed a window. When the person came to measure he also didn’t catch that I was having all my windows done except one. The windows look great. The response when I notified the co that one window was missed was very fast but added to my cost."
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
5374 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Prime Time Window Cleaning, Inc.
Prime Time Window Cleaning, Inc.
3.9(
2,357
)
Window Cleaning

Serving Cortland, IL and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"They cleaned our 8 Pane windows on our two story 1940â  s house perfectly with the exception of one window which it seems they forgot and I missed when I inspected before they left. The guy that came out was professional and did great work. He stuck with our original quoted price even though upon arrival he realized that this was an old house me with multi pane windows and outdoor storm windows on each. Windows looks ok great and I will give a second review after I hear back on the missed window from the company"
Quality Work
Experienced Crews
Professional Friendly Technicians
Pressure washing the sidings
Commercial cleaning

+58

Response time6 hrs
440 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for J&K Home Improvement & Restoration
J&K Home Improvement & Restoration
5.0(
8
)
New Window - SingleNew Window - Single - For BusinessNew Windows - 2+5 more

Serving Cortland, IL and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"We have once again reached out to Joe Kim at J & K Home Improvements when we had a new project planned. We were completely satisfied when we replaced our siding and roof with Joe. Now Joe and his professional crew have replaced all our windows . There are never surprises or additions from when the job is quoted. Once again we are totally satisfied and delighted with their work!! It has been a stress free experience each and every time."
Roofing
Siding Job
GAF Shingles
Siding job site
Modifed Bituman

+2

Recommended by100%of homeowners
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Avatar for WindowWorks Chicago
WindowWorks Chicago
5.0(
1
)
New Windows - 6 +

Serving Cortland, IL and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

Window Works is the best choice for all of your replacement window needs. From energy efficiency to beauty and durability, our products are made to last and improve the look and value of your home. Our glass systems can help reduce fading of carpets, drapes and furniture, all while keeping you comfortable inside no matter the weather. From traditional double-hung windows to fancy bow & bay windows and even sliding patio doors, Window Works is your one stop shop for window replacement. Our products are made in America and come with exceptional warranties. With over 21 years' experience, we can do it all. We take pride in our highly trained, experienced, expert installation teams and our knowledgeable and friendly staff. Call us today! We look forward to working with you!

Response time30 mins
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Windows questions, answered by experts

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.

Depending on material and size, costs range from $300 to $800 per window.

Yes, but professionals use specialized equipment and cleaning solutions to safely achieve streak-free, long-lasting results.

Windows can crack for various reasons. Common causes include aging glass, physical impact, and temperature stress. A less common reason is pressure changes, which are far less predictable. Pressure changes often happen because of poor window placement.

Yes, professional window cleaning is worth the investment. Regular deep cleanings help keep your windows looking new, extend their lifespan, and boost your home's curb appeal. By removing dirt, dust, and other debris, you can reduce the risk of damage and accelerated wear to window frames and components. It also improves your home’s energy efficiency by keeping insulation and weatherstripping in good working order, potentially lowering your energy bills. Furthermore, annual or bi-annual cleanings can help identify problems like leaks or cracks early, before they escalate into expensive water damage. You can often recuperate the cost of cleaning through energy savings and by avoiding premature window replacement.

The Cortland, IL homeowners’ guide to window services

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

See all articles