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Verified Reviews for Window Service pros in Knox, PA

*The Angi rating for Window Service companies in Knox, PA 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 Knox, PA 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 December 30, 2025

Find Window pros in Knox

Avatar for Mad City Windows & Baths
Mad City Windows & Baths
4.4(
832
)
New Windows - 6 +New Windows - 3-5New Windows - 2

Serving Knox, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"We replaced the windows in our 1933 home through the services of MadCity Windows. From the initial contact with their sales representative to final installation, the company provided top notch professional work. With the draft from the old windows and the cold of the glass, we are already saving on our energy bills. Our house had old, large windows, so they had to be custom made. As an industrial designer and interior designer, we find our windows to be of excellent quality."
windows
siding
siding
siding
windows

+20

Response time10 mins
7130 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for U.S. Film Crew
U.S. Film Crew
4.7(
13
)
Window Tinting - Apply or Replace

Serving Knox, PA and surrounding areas

Approved

In business since 1992

Free estimates

Warranties offered

"I called and the next day the sales rep came out to our building with samples to pick from and she was very informative about the products and professional. I had to call back in because i did not count the right number of windows to be done. And again the sales rep was accommodating and was able to add the windows 3 days before installing. Also was able to schedule a sunday Installation when the lab was closed. The installer was here early, very courteous , professional and efficient. I was able to leave him to do his work so i could get my tasks done also. Exceptional service"
USFC Welcome area
USFC Office and Waiting Area
USFC Outside OfficeView
USFC Conference Room
Al-Hashimi

+27

Response time2 days
38 neighbors recently requested a quote
Recommended by80%of homeowners
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Avatar for Renuity
Renuity
4.3(
36
)
New Windows - 6 +New Windows - 3-5

Serving Knox, PA and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Warranties offered

"Installed 22 new windows, 2 entry doors, and new sliding glass door. Outstanding service, price, and installation. Highly recommend."
Entry Door
Doors
Doors
Doors
During Installation

+55

Response time6 hrs
1827 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Source 4 Window and Door
Source 4 Window and Door
4.8(
6
)
New Window - SingleNew Windows - 2

Serving Knox, PA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"John has done many windows for me and his quality of work is great each time!"
My jobs
My jobs
My jobs
My jobs
My jobs

+10

Response time2 days
Response rate100%
1 neighbors recently requested a quote
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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 Knox, PA 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
5393 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Bachman's Roofing
Bachman's Roofing
5.0(
5
)
New Windows - 6 +New Windows - 3-5New Window - Single+5 more

Serving Knox, PA and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

Bachman's Roofing is a family-operated company with over 50 years of experience in roofing, exteriors, and solar solutions. Recognized as one of the top 30 roofers nationwide, and renowned for exceptional craftsmanship and outstanding customer service.\n

Siding Storm Damage
Roof Installation
Roof Installation
Solar Install
Solar Install 2

+12

108 neighbors recently requested a quote
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Avatar for Universal Windows Direct of Pittsburgh
Universal Windows Direct of Pittsburgh
4.6(
29
)
New Windows - 6 +New Windows - 3-5

Serving Knox, PA and surrounding areas

In business since 2002

Free estimates

Warranties offered

"Good company to deal with; windows are high quality. The installer was awesome!"
Brown Woodgrain/Glass Entry Door
Casement Windows
Black Woodgrain/Glass Entry Door
Windows
Brown Woodgrain/Glass Entry Door

+6

10 neighbors recently requested a quote
Recommended by91%of homeowners
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Showing 1-10 of 69
Windows questions, answered by experts

Glass block windows are energy-efficient because they are much thicker than traditional glass panes, making them better insulators. They are sealed airtight, which prevents drafts and stops warm or cool air from escaping, helping to save money on heating and cooling bills. Unlike traditional windows that can be opened and closed, sealed glass block windows eliminate the potential for air leaks. For proven efficiency, look for options that are Energy Star rated. The cost for energy-efficient glass block windows is typically around $400 per window, which may be higher than standard windows.

No, it isn’t necessary to have energy-efficient windows. However, if you care about your energy bill and making your windows more energy efficient, fixing any heat, UV, or air transfer issues is an excellent way to lower your bills and keep your house cooler in the summer and warmer in the winter.

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.

When specifying window sizes, manufacturers use a standard four-digit code system. The first two numbers represent window width, and the last two represent window height. For example, a window with a code of 2917 has dimensions of 2 feet, 9 inches wide by 1 foot, 7 inches high. Windows with even dimensions include zeros as placeholders. For example, a window that is 5 feet wide by 2 feet high would have a code of 5020.

Removing a window isn’t a very long process. Depending on several factors, it can take anywhere from 20 minutes to upwards of an hour. The size of the window greatly impacts the time it takes to replace it. Accessibility is another big component. If it’s hard to reach the window or reaching it is dangerous, anticipate it taking longer. 

Lastly, if the old window is in poor condition, it could take longer to remove it safely—especially if the frame has wood rot and is structurally unsound.

The Knox, PA 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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