Best window pros near Liberty, NY

Q: How can you tell how old windows are?

• <div><p>Most manufacturers have their name imprinted somewhere on the window, such as the spacer bar, hardware, or frame. Other manufacturers will include an identification number printed on the glass itself. If you&rsquo;re unable to find either of these, then your window was manufactured locally (oftentimes called a &ldquo;shop window&rdquo;). </p><p>With a manufacturer name (or even better, the identification number) you can attempt to research the information to find out when the product was made. Keep in mind this won&rsquo;t tell you when the window was installed on your home, but can get you close.</p></div>

Q: Do home appraisers look at windows?

• <div><p>Yes, home appraisers look at your windows when appraising your property to determine the market value of your home. They&rsquo;ll factor in the type of windows, quality, condition, whether or not there are screens covering the windows, frame materials, size, insulation, and more to come up with an unbiased property assessment.</p></div>

Q: Do you install replacement windows from the inside or outside?

• <div><p>Depending on the window style and your home's layout, you can install replacement windows from either the inside or the outside. Many installations are done from the inside because it allows for better access and weather protection, but some exterior installs are easier for certain types of siding or trim. The key is choosing the approach that gives you the best access to the frame while keeping the existing structure intact.</p></div>

Q: How are glass block windows energy-efficient?

• <div><p>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.</p></div>

Q: Are casement windows the most expensive?

• <div><p>Casement windows are more expensive than some other window types, such as single-hung or double-hung windows. However, casement windows are not the most expensive type of window. Bow and <a href="https://www.angi.com/articles/how-much-do-bay-windows-cost.htm">bay window costs</a> tend to be the highest, because they involve multiple large windows that jut out from the exterior of the home. </p></div>

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Verified Reviews for Window Service pros in Liberty, NY

*The Angi rating for Window Service companies in Liberty, NY 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 Liberty, NY 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 April 18, 2025

Reviewed in April 2025
Cory is great and a reliable worker. We have a bathroom that needed some update and he installed the floor, a new window, new toilet, new vanity light, new sink top and hardware, and painted the sink vanity. At the end of the project there were a few finishing details that needed some...
Kalthoff Home Improvement
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Reviewed in September 2023
"The power washing team did a fantastic job on my home's exterior. They paid attention to every detail, from the gutters to the windows, leaving my house looking pristine. I'm beyond pleased with their work and will definitely hire them again."
V & S Cleaning and Maintenance
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Reviewed in November 2022
I had an amazing experience with M&T, I needed a baby nursery built last minute which included all new flooring, drop ceiling tiles replaced, room painted and windows winterized. They also took the time to build all of the nursery furniture and assist me in hanging and mounting all of the decor...
M&T Property Services
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Reviewed in July 2020
Steve really took ownership of the project and handled it from start to finish all by himself. He installed solar panels for us and electrical systems as well as doors, windows, and a few other projects over the years. He is very handy and I would definitely reccomend him.
Steven Nuzzo
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Reviewed in January 2020
Windows and doors also replaced. Contractor pays attention to detail and comes fully prepared with quality, reliable tools. Neat while working and complete clean up afterwards. Respectful of my home and property. Versetta stone siding was installed. Contractor used Versetta specific screws....
Fallsburg Construction
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Reviewed in September 2019
The contract was to repair vinyl siding and to replace one window by new one. After the old siding had been stripped, it was found some plywood need replacement and some studs needed repair too. All work was performed accurately, professionally and with high quality. That was not a first time...
Luna Siding & Roofing
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Reviewed in August 2015
We contacted several other contractors and were very pleased when we met Steve from Northern Windows who came to our home to discuss what his family's company does. He was concise, thorough, and answered all our questions. He didn't high pressure us or confuse us with many details, as one...
Northern Windows, Siding, Roofing, & Insulation
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Reviewed in April 2015
Very bad quality of work. Always argue and knows better! Garage is leaking now,never before. Brand new purchased windows are damaged by his workers and all are leaking. Has no clue about plumbing or electric. He uses sub- contractors and at the end when work is finished he refuse to pay...
Krupp Contracting
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Reviewed in October 2014
Richie brought his son and they both put in a full day installing 17 windows. They were on time and did pretty clean work.
Richard Horvath Handyman
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Reviewed in March 2014
Do not hire this company. After 5 months I'm still waiting for it to be completed. Of what they did install two windows leak and have ruined my automated shades. They have a million excuses except to complete the work they started and fix what they didn't install correctly.
Castle - The Window People
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Top-Rated Window pros in Liberty - Updated Nov 2026

Mad City Windows & Baths

4.4(

837

)

New Windows - 6 +New Windows - 3-5New Windows - 2

Serving Liberty, NY 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."

+20

Response time10 mins

8418 neighbors recently requested a quote

Recommended by89%of homeowners

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Renewal by Andersen of Eastern NY

Serving Liberty, NY and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1993

Free estimates

Warranties offered

"John and Jason arrived on time and replaced a very large picture window and a smaller window. I am very happy with the windows . They look beautiful. John and Jason were very professional and did a wonderful job. Now I am kicking myself for not replacing a few more windows!"

Response time1 day

14 neighbors recently requested a quote

Recommended by86%of homeowners

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ProEdge Remodeling - Windows

4.6(

)

New Windows - 3-5New Windows - 6 +

Serving Liberty, NY and surrounding areas

Approved

In business since 1961

Free estimates

Credit card accepted

"Exceptionally clean and fast work. Great quality windows and warranty."

+38

Recommended by94%of homeowners

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Castle - The Window People

2.9(

1,722

)

New Windows - 6 +New Windows - 3-5

Serving Liberty, NY and surrounding areas

Approved (Corporate)

In business since 1991

Credit card accepted

Offers commercial services

"The entire process was pleasant the installation crew came in and they did a great job installing 7 windows."

+13

Response time1 day

Response rate100%

135 neighbors recently requested a quote

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Kalthoff Home Improvement

4.7(

)

Door or Window Screens - Install or RepairHardware, Latches & Tracks (Window) - Repair or ReplaceWindow Frame - Repair

Serving Liberty, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Credit card accepted

With over 10 years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest in Kalthoff Handyman Services.

+171

Response time1 day

Recommended by47%of homeowners

Serving Liberty, NY and surrounding areas

Approved

Customers say: Quick response

I am very detailed very patient and o like to clean sparkly

Recommended by100%of homeowners

New Windows - 6 +New Window - SingleNew Windows - 2+1 more

Serving Liberty, NY and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade, and will do our best to keep you as educated as we can, on your particular task or project. We look forward to earning your business!

4 neighbors recently requested a quote

Window CleaningHardware, Latches & Tracks (Window) - Repair or Replace

Serving Liberty, NY and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Offers commercial services

I am passionate about what I do, and I am always eager to help a customer. 315-558-1707

33 neighbors recently requested a quote

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Mad City Windows & Bath - Scranton

New to Angi

New Windows - 2New Windows - 3-5

Serving Liberty, NY and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

To learn about Mad City Windows and its history, you need to start back in 1998 when our family-owned company first opened its doors and changed the face of home remodeling in Wisconsin. From the beginning, our business has been built on a foundation of friendship and trust and, in return, local homeowners have come to know they can place their trust in us. In order make certain that we consistently earn that trust, we are dedicated to ensuring the expert, seamless delivery of high-quality products and remodeling solutions to homeowners throughout our service area. \n \nToday, we expand our home remodeling expertise across Wisconsin, Minnesota, Iowa and Illinois. With over 50,000 completed projects, we take our 2+ decades of experience to serve the communities of Minnesota, Iowa and Illinois. They can expect our highest standard of service and professionalism.

+19

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John Carpenter Craftsmanship and Design

4.2(

)

Hardware, Latches & Tracks (Window) - Repair or ReplaceWindow Frame - RepairWindow Well Covers - Install or Repair

Serving Liberty, NY and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

Construction Professional available to complete your Project on time and within your budget. Many years of diverse experience in all phases of Residential/Commercial Construction - from Journeyman Carpenter to Project Manager - will ensure your job is done safely, efficiently, and properly. Allow me to offer a fair and transparent proposal.

Response time3 days

Response rate100%

2 neighbors recently requested a quote

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Showing 1-10 of 146

Windows FAQs, answered by experts

Most manufacturers have their name imprinted somewhere on the window, such as the spacer bar, hardware, or frame. Other manufacturers will include an identification number printed on the glass itself. If you’re unable to find either of these, then your window was manufactured locally (oftentimes called a “shop window”).

With a manufacturer name (or even better, the identification number) you can attempt to research the information to find out when the product was made. Keep in mind this won’t tell you when the window was installed on your home, but can get you close.

Yes, home appraisers look at your windows when appraising your property to determine the market value of your home. They’ll factor in the type of windows, quality, condition, whether or not there are screens covering the windows, frame materials, size, insulation, and more to come up with an unbiased property assessment.

Depending on the window style and your home's layout, you can install replacement windows from either the inside or the outside. Many installations are done from the inside because it allows for better access and weather protection, but some exterior installs are easier for certain types of siding or trim. The key is choosing the approach that gives you the best access to the frame while keeping the existing structure intact.

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.

Casement windows are more expensive than some other window types, such as single-hung or double-hung windows. However, casement windows are not the most expensive type of window. Bow and bay window costs tend to be the highest, because they involve multiple large windows that jut out from the exterior of the home.

The Liberty, NY 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

Angi
•
Jul 8, 2026Jul 8, 2026
How Much Do Energy-Efficient Windows Cost? [2026 Data]
Discover the energy-efficient window costs. Learn about installation prices, cost factors, and tips to save money on your window upgrade.
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•
Aug 3, 2026Aug 3, 2026
Cost to Enlarge Windows in Your Home [2026 Data]
Bigger windows mean more natural light in your space and better views of the outdoors. Learn about the cost to enlarge windows and what affects your total.
Melissa Graham
•
Jul 9, 2026Jul 9, 2026
How Much Do Steel Windows Cost? [2026 Data]
Steel windows are a durable, modern option for your home. Learn how much steel windows cost and see if they’re a good fit for your home.
C.E. Larusso
•
Jul 20, 2026Jul 20, 2026
14 Things to Consider Before Buying Windows
Buying windows can be complex. There are a ton of things to consider before buying to ensure you’re making the right choice for your home. Explore more here.
Scott Dylan Westerlund
•
Aug 4, 2026Aug 4, 2026
Standard Window Sizes: A Complete Guide to Understanding Window Dimensions
Understanding standard window sizes is easy once you get the hang of it. Here's how to order windows just like the pros.
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•
Jul 9, 2026Jul 9, 2026
How to Choose the Best Replacement Windows for Old Houses
When seeking the best replacement windows for old houses, the home’s style is key. Learn everything about what selecting replacement windows entails.