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TRUSTED BY FRANKFORT, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon444
    Verified window services reviews

Top-Rated Window pros in Frankfort - Updated Nov 2026

Avatar for Premier Quality Windows & Siding Inc
Premier Quality Windows & Siding Inc
4.9(
90
)
New Windows - 6 +New Windows - 3-5

Serving Frankfort, IL and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"We are very happy with Premier Windows. The quality and installation work was efficient and professional. We ordered just before the covid19 lockdown began, and wondered how it would come together. Being older, we worried about letting a crew into our home, but decided it would be a go. The crew wore masks, worked quickly and were conscientious of distancing. The workmanship was excellent, the product is of great quality, and we found Pat Patel, the company rep, honest and informative. Pricing, while still expensive, at $5950, was approximately 1/3 less than other estimates. We would definitely hire again, and will highly recommend."
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+24

Response time1 day
9 neighbors recently requested a quote
Recommended by100%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 Frankfort, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Warranties offered

"I love my windows and siding. My house looks like it’s brand new. The windows and siding transformed my house. I would recommend Gus at EcoChamp Windows and Siding to all my friends and family. It looks amazing!"
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 Windo-Well Cover Company
Windo-Well Cover Company
4.9(
56
)
Window Well Covers - Install or Repair

Serving Frankfort, IL and surrounding areas

Approved

In business since 1957

Free estimates

Credit card accepted

"From the initial contact through installation, this experience was wonderful. Price was ideal and the workmanship spot on. We even had them clean the window wells (YUCK) we live near farm land and have lots of bugs and critters..."
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
Avatar for Excel Windows
Excel Windows
4.6(
129
)
New Windows - 6 +New Windows - 3-5New Windows - Multiple

Serving Frankfort, IL and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"They were very good. They'll even come back if something happens. One time I had a window that wouldn't close right. They came back and showed me. They really stand behind their work. The other thing was they even match up to the wood so I didn't have to have anything stained. They do good work. They were very good about coming on time. Two different times I've used them. We have a lot of windows in my house so we can't afford to do them all at one time. They're good and they have good quality. They stand behind their stuff."
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+407

Response time9 hrs
7 neighbors recently requested a quote
Recommended by96%of homeowners
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Windows FAQs, answered by experts

Window replacement is typically always worth the cost, both from a money-saving standpoint and a comfort standpoint. If your windows are older and significantly damaged, a window replacement can actually save you money in the long term by improving energy efficiency. If your windows aren’t up to code, you may not really have a choice. 

Modern windows provide enhanced UV protection, improved heat retention, and cooling efficiency, contributing to overall household energy savings.

Yes, every window needs a lintel. The lintel is necessary for redistributing the load above the window to the walls around the window. Windows aren’t meant to support a load, so lintels are an important part of a window installation. If you go to replace your windows and discover there are no lintels, you may need a window company or structural engineer to install lintels for your new windows.

A good U-factor for windows is 0.30 or lower, but they can range from 0.20 to 1.20. A general rule of thumb when it comes to the U-factor is that the lower, the better.

Yes, you can always make an existing window bigger, but the job complexity varies widely depending on the location of the window and the framing around it. Exterior walls are always load-bearing, so making windows wider will require structural changes that make for a more complex but doable project. Making windows taller often won’t require structural changes.

The Frankfort, IL homeowners’ guide to window services

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