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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

"Very professional and got the work done as promised in a timely and efficient manner. Highly recommend them for your window well cover needs."
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 Home Genius Exteriors
Home Genius Exteriors
4.8(
305
)
New Windows - 2New Windows - 3-5New Windows - 6 +

Serving Cortland, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Great Company. Fast Efficiant work. Shawn the Window Technician was great, and Devan who was helping him install and we learned that he was actually a Production Manager. Both were great. The completed all of our windows. 7 standard, and a picture window in less than two days. Great company. Great customer service. Shawn,Devan, and Lauren were all amazing."
Recommended by77%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

"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
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

"Spectacular job on the windows. Cleanest they've EVER been."
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 Prime Time Window & Gutter Cleaning Inc
Prime Time Window & Gutter Cleaning Inc
3.7(
422
)
Window Cleaning

Serving Cortland, IL and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Prompt, courteous service. The washer told me which windows he would suggest replacing which will be a large savings for me. I would definitely recommend them and use them again."
Removing the debris
Pressure washing the sidings
Pressure washing the sidings
Cleaning interior windows
Commercial Window Cleaning

+85

Response time7 hrs
8 neighbors recently requested a quote
Recommended by71%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

When your double-hung window upper sash keeps falling down, it means you could be letting out warm air in the winter or cool air from the AC in the summer. That means your HVAC system works harder to warm or cool the house, costing you extra on electric bills.

If the lower sash continues to fall down, it means when you’ve popped open the window for fresh air, it could slam shut. In addition to being inconvenient, this could be dangerous if you have small kids, children, or pets that like to hang out by the window.

Mulled windows are no less efficient than individual windows, provided the wall opening is the same size. Larger wall openings filled with glass will always reduce overall energy efficiency, as glass transmits heat more readily than a solid wall. If the windows that are mulled together have the same square footage as individual windows, you might actually see a small decrease in your electric bills, as mulled windows let in more natural light that can reduce interior lighting costs.

Arched windows used to be most prevalent in more traditional home styles, like Spanish colonial and Gothic, but they are becoming increasingly popular in modern design. You’ll often find arched windows in new home builds across many styles, including farmhouse and contemporary architecture. This represents a more general trend toward more unique houses with interesting features.

To lower your home’s humidity level overnight, you can open your windows when the air is less damp. This tactic allows air to circulate around the window, preventing condensation from forming. However, you should consider the disadvantages of leaving your windows open overnight, including safety risks and pest intrusions.

There are a few reasons your crank windows might not close. First, determine if your window crank is working properly and opening and closing the window when you turn it. If it’s not, the crank may need replacing, cleaning, or lubricating. Another reason your windows aren’t closing could be dirt and debris in the window hinges or sash. Finally, make sure your window lock operator is set in the unlocked position and isn’t blocking the window from fully closing. If you’re still having trouble closing your window, it may be worth consulting a local window contractor.

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.

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