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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
)

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 Mad City Windows & Baths
Mad City Windows & Baths
4.4(
832
)

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
6152 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
303
)

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(
125
)

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
5390 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Prime Time Window & Gutter Cleaning Inc
Prime Time Window & Gutter Cleaning Inc
3.7(
422
)

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
6 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
)

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
)

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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Showing 1-10 of 195
Windows questions, answered by experts

Most modern egress windows installed in basements open outward into a window well, although some older homes have in-swing windows. Egress windows, like casement windows used in other parts of the home, such as bedrooms and bathrooms, may open inward, and these windows are often larger than outward-opening windows.

Impact windows can last between 10 and 40 years, depending on how much wear and tear they receive. This is roughly within the range for standard windows; standard windows tend to last between 15 and 50 years. You can extend your windows’ lifespans by performing regular maintenance on them and ensuring they are installed correctly.

Yes, egress windows can significantly add value to a home. By making basement and attic areas safer and more livable, they allow you to market these spaces as finished living areas, which increases your property's value. Many homeowners can recover the full installation cost, with some sources citing a return on investment of around 70%. The exact value added depends on your specific home, location, and adherence to local building codes. Beyond financial value, egress windows enhance functionality by adding natural light and comfort. They are also a crucial safety feature, often mandated by building codes to serve as an emergency exit.

One of the best professional cleaning solutions that won’t leave streaks is one gallon of distilled or bottled water mixed with 2 to 4 teaspoons of dish soap. Apply using a sponge in a figure-eight motion, and then use a squeegee to remove the majority of the water and soap. You can finish drying with a piece of old black-and-white newspaper to remove any residue for a streak-free clean every time.

It is legal to put bars on windows in most places, but it depends on the type of bars you choose and the regulations in your area. For example, there are building codes in Mississippi, California, and Texas that forbid the use of permanently closed burglar bars on windows due to concerns about people getting trapped inside during fires.

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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