27 Best Window Replacement Companies in Lockport, NY (Jan 2023)
Window Companies Near Me
When it's time to replace your windows, our guide to the best window installation companies can help you find the provider for you.
We analyzed all the top window installers in Lockport and selected the top 27 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated January 12, 2023
Why you can trust EcoWatch
The EcoWatch Reviews team is all about helping Lockport homeowners make their homes more eco-friendly. Poor windows can make your AC or heater work extra hard in the summer or winter.
Installing efficient windows on your house can help you save money each month on your electric bills — and you can help the environment, too.
Unlike other sites, EcoWatch ranks window installation companies based on energy efficiency while also balancing cost, customer satisfaction and service area.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Award-winning company
- Great industry reputation
- No lifetime warranty
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Great industry reputation
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Lifetime warranty
- Makes charitable contributions
- Wide variety of products and services
- Quality of service will depend on your area
Best Window Replacement Companies in Lockport
The EcoWatch team evaluated dozens of installers in Lockport to find the best window replacement companies for our readers. We assessed the companies on their energy-efficient offerings, customer service, coverage area, local experience, price and more.

Renewal by Andersen
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Manufactures products in-house
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Award-winning company
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Great industry reputation
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No lifetime warranty
Renewal by Andersen offers the best availability in Lockport. This window installation company has been in business since 1995 and currently services nearly every state except Mississippi and West Virginia.
It uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen's commitment to sustainability can be seen in its energy-efficient window offerings. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Lockport?Prices aren't listed on Andersen's website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can ask for a free quote on its website for more information about the cost.

Window World
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EnergyStar Partner
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Large serice area
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Great industry reputation
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Quality of service will depend on your area
Window World has windows expertise in Lockport. This window installation company has been in business since 1995 and currently serves 200 locations nationwide. The company has plenty of positive reviews from customers on online review websites.
You may want to consider opting for Window World if you're interested in a installer that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World's commitment to sustainability can be seen in its energy-efficient window offerings. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Lockport?Window World doesn't have any prices displayed on its website, but it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to get more accurate pricing information.

Universal Windows Direct
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Lifetime warranty
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Makes charitable contributions
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Wide variety of products and services
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Quality of service will depend on your area
Universal Windows Direct has the best warranty in Lockport. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has around 20 years of experience in the window installation business. The provider has plenty of positive reviews from customers on online review websites.
It has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want Energy Star windows when inquiring. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Lockport?Prices are not available on Universal's website since the cost of window installment differs based on how many and what type(s) of windows you need. However, installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. Receiving a free quote on its website is the best way to know for sure.
We have tried to be unbiased and transparent by listing pros and cons for every company. Additionally, any partnerships do not affect our reviews.
More Window Replacement Companies in Lockport
Comfort Windows & Doors
Tonawanda, NY-
Excellent Customer Service
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Helps Educate Customers
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Price Transparency
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No-fee Quotes
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Double-Hung
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Sliding Glass
Graves Brothers Home Improvement
Williamsville, NY-
Educational Website
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Price Transparency
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Good Customer Service
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Locally Recognized for Quality
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Double-Hung
Wonder Windows Buffalo
Buffalo, NY-
Free Quotes
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Reliable Appointment Windows
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Dependable Service
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Price Transparency
Services Offered
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Glass Showers
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Residential Windows
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Custom Windows
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Double-Hung
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Sliding Glass
Twin City Glass
North Tonawanda, NY-
Free Quotes
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Excellent Customer Service
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Reliable Appointment Windows
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Helps Educate Customers
Services Offered
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Residential Windows
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Glass Showers
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Custom Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
The Window Source of WNY
Buffalo, NY-
Free Quotes
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No-Hassle Pricing
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Timely Service
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Good Customer Service
Services Offered
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Custom Window Designs
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Architectural Glass
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Sliding Glass
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Double-Hung
Window Factory Outlet
Buffalo, NY-
Reliable Appointment Windows
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Good Customer Service
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No-Hassle Pricing
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No-fee Quotes
Services Offered
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Residential Windows
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Architectural Glass
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Custom Windows
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Double-Hung
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Sliding Glass
Stanek Windows
West Seneca, NY-
Educational Website
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Good Customer Service
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Price Transparency
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Free Quotes
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
A-24 Hour Door National Inc.
Buffalo, NY-
Excellent Customer Service
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No-Hassle Pricing
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Reliable Appointment Windows
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Consistent Workmanship
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Window Designs
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Commercial Windows
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Sliding Glass
Granto Glass Block
North Tonawanda, NY-
Educational Website
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Charitable Giving
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Price Transparency
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Free Quotes
Services Offered
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Full-Service Installations
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Fast Delivery
William C Rott & Son Inc
Tonawanda, NY-
Excellent Customer Service
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Educational Website
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Price Transparency
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Dependable Service
Services Offered
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Residential Windows
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Custom Window Designs
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Full-Service Installations
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Business Windows
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Double-Hung
Renewal By Andersen of Western New York
Depew, NY-
No-Hassle Pricing
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Good Customer Service
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Award-Winning
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Free Quotes
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
Stockmohr Co Inc
Clarence Center, NY-
Price Transparency
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Free Quotes
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Good Customer Service
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Helps Educate Customers
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
Nexgen Windows & Doors LLC
East Amherst, NY-
Excellent Customer Service
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No-fee Quotes
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Educational Website
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Price Transparency
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Aurora Door & Window Co.
West Falls, NY-
Good Customer Service
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Price Transparency
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Free Quotes
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Helps Educate Customers
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Sliding Glass
Glass Replacement Buffalo, NY | Mirror Glass & Shower Doors
Hamburg, NY-
Helps Educate Customers
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Excellent Customer Service
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No-fee Quotes
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Price Transparency
Services Offered
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Residential Windows
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Sliding Glass
Paramount Windows & Doors
East Aurora, NY-
Educational Website
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Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
Services Offered
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Residential Windows
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Custom Window Designs
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Full-Service Installations
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Business Windows
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Double-Hung
Big L Windows & Doors
Cheektowaga, NY-
Helps Educate Customers
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No-Hassle Pricing
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Good Customer Service
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Timely Service
Services Offered
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Custom Window Designs
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Commercial Windows
Home Services at The Home Depot
Lockport, NY-
Price Transparency
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Good Customer Service
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Dependable Service
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Helps Educate Customers
Services Offered
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Custom Window Designs
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Fast Delivery
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Residential Windows
Window Specialists Inc
Lancaster, NY-
Good Customer Service
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Educational Website
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Free Quotes
Services Offered
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Double-Hung
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Sliding Glass
Pella Windows & Doors of Buffalo
Buffalo, NY-
Good Customer Service
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No-Hassle Pricing
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Custom Windows
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Sliding Glass
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Commercial Windows
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Double-Hung
Aberdeen Plate Glass
Buffalo, NY-
Free Quotes
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Sliding Glass
David's Windows & Doors
Buffalo, NY-
Price Transparency
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Free Quotes
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Excellent Customer Service
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Consistent Workmanship
Services Offered
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Custom Window Designs
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Residential Windows
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Full-Service Installations
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Business Windows
Braymiller Builders of WNY Inc.
Hamburg, NY-
Locally Recognized for Quality
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Good Customer Service
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No-Hassle Pricing
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Free Quotes
Services Offered
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Custom Windows
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Sliding Glass
American Glass Block
Buffalo, NY-
Excellent Customer Service
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Free Quotes
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Price Transparency
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Timely Service
Services Offered
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Custom Windows
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Aluminum Window Frames
Glass America
Buffalo, NY-
No-Hassle Pricing
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Educational Website
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Award-Winning
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No-fee Quotes
Services Offered
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Custom Window Designs
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Business Windows
Medina Windows
Lyndonville, NY-
No-Hassle Pricing
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Excellent Customer Service
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Free Quotes
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Educational Website
Services Offered
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Custom Windows
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Residential Windows
Glass America
Elma, NY-
Free Quotes
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Good Customer Service
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Price Transparency
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Helps Educate Customers
Services Offered
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Custom Windows
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Commercial Windows
How Installing Energy-Efficient Windows in Lockport Saves You Money
Energy-efficient windows can offer benefits in more than one way. Here are some reasons you may want to think about making the switch:
- Save money on energy bills: According to the Department of Energy, heat gained or lost through windows accounts for about 25-30% of household energy use. Replacing your windows with energy-efficient models can help lower that number, therefore saving you about 12% more on your bills.
- Decrease your carbon footprint: Reducing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 65 pounds per year on average.
- Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
- Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes usually have windows that are outdated, leaky or maybe even damaged in some way. Upgrading your windows could help increase the value of your home if you decide to sell.
Estimated Cost of Window Replacement in Lockport
When researching window installation, each company offers different services and prices. Let's go over some typical costs and services.
How Much Do New Windows Cost?
According to our research, the typical cost to replace a single window is around $600. However, window installation costs can range from $200 to $1,200 per window. But costs will differ significantly depending on the current condition of your home, your location, the number of windows you need and the quality of your products. A lot of window companies also offer door installations and other add-ons like baths, coating, shutters and more. These extra services will increase your overall project costs.
It's important to remember that windows with higher efficiency may cost more initially but can save you hundreds of dollars via returns on your energy bills. Investing in certified energy-efficient windows can save Lockport homeowners $283+ a year when replacing single-pane windows.
Asking for free quotes from multiple installers is the best way to find out which one is right for you.
What Services do Window Installers Offer?
Generally, there are two types of window installation services companies provide: full-frame and pocket installations.
A full-frame installation replaces the entire window, including the windowsill, frame, trim and the window panes. Because this kind of installation requires more time and labor, it will be more expensive than a pocket installation. Pocket installations (or retrofits) entail installing a new window within the existing frame, which makes pocket installations take less time and therefore cost less. But, if the frame has any damage or rot, you will most likely need a full-frame installation instead.
Your window installer should be able to help you figure out which type of installation you should get.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Award-winning company
- Great industry reputation
- No lifetime warranty
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Great industry reputation
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Lifetime warranty
- Makes charitable contributions
- Wide variety of products and services
- Quality of service will depend on your area
How We Choose the Best Window Installers in Lockport
In our search to find the most reliable, eco-friendly window installers in Lockport, EcoWatch landed on the above companies as the top window installation companies in the city. We have decided to assess the top window installers in Lockport mostly based on their energy efficient offerings, as it's the most sustainable option and the best one for homeowners. Energy-efficient windows have been shown to cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Because this is a guide for Lockport, we only included companies that provide services to the city. There are certainly reputable providers that didn't make the list because of the low odds that they would serve the average homeowner in Lockport.
Work Quality
When choosing new windows, the quality and range of services often plays just as important of a role in insulation and performance as the brand you get. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If most customers don't have positive things to say about their experience with a certain company, you won't see it featured on EcoWatch.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers want to keep costs low when possible. When analyzing the prices of providers, we awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have a good track record in the industry. Window installation companies that have more years of experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Lockport, NY Window Replacement FAQs
How much should a window install cost?
The national average cost to install a window is around $600 but can range between $200 and $1,200, based on a few different factors. The price is often influenced by the type and material of the window, the location of your property and the size of the window. Also, remember that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
What are the most common types of replacement windows?
The most common types of windows for homes are casement windows, awning windows, slider windows, double-hung and single-hung windows, transom windows, picture windows and bay windows.
What services do window installation companies provide?
Window installation companies cover the entire process — from replacing your old windows with new ones to cleaning up after the windows have been put in place. Additionally, a lot of companies offer window manufacturing, customization and repairs.
When is it time to replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they should probably be replaced. Apart from that, if your windows have damage anywhere on them, or they have become difficult to operate, they may be in need of replacement.
Should I replace all my windows at once?
If your windows are greater than 20 years old, it's probably time to replace all of them. By that point, they are typically less efficient, draftier and/or more damaged than new windows. Replacing your windows all at once will involve less paperwork and less stress.