26 Best Window Replacement Companies in South Lockport, NY (Mar 2023)
Window Companies Near Me
Looking to improve your house's value? The top window replacement companies can help.
We analyzed all the top window installers in South Lockport and selected the top 26 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 March 14, 2023
Why you can trust EcoWatch
A review of the best window installation companies in South Lockport may not seem like the most captivating article on EcoWatch, but trust us, windows have a more direct impact on your life than you might think. If you have traditional, outdated windows, your HVAC system could be working overtime to heat or cool your home. This means spending more on power bills.
That's also bad news for the environment because the additional energy used by leaky windows increases your carbon footprint.
Unlike other sites, EcoWatch ranks window installation companies based on energy efficiency while also factoring in cost, customer satisfaction and service area.
Best Affordability
Window World
- Low prices relative to competitors
- Large serice area
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Great industry reputation
- No lifetime warranty
Best Warranty
Universal Windows Direct
- Makes charitable contributions
- Lifetime warranty
- Manufactures products in-house
- Quality of service will depend on your area
Best Window Replacement Companies in South Lockport
The EcoWatch team evaluated dozens of window providers across South Lockport to narrow our list down to the best ones. We assessed the companies on energy-efficient offerings, coverage area, price, customer service, local experience and more.

Window World
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Low prices relative to competitors
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Large serice area
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Lifetime warranty
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Quality of service will depend on your area
Window World offers windows expertise in South Lockport. This window installation company has been in business since 1995 and currently services 200 locations nationwide. Hundreds of positive reviews on customer review websites back the company's reputation.
It 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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World's offerings are Energy Star certified, so make sure you mention that you're interested in Energy Star windows when inquiring.
How much does Window World cost in South Lockport?Window World doesn't have any prices available on its website, but it's known for offering some of the most affordable window installations around. If you'd like more accurate pricing information, you can ask for a quote on the company's website.

Renewal by Andersen
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Award-winning company
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Member of US Green Building Council
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Great industry reputation
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No lifetime warranty
Renewal by Andersen provides the best availability in South Lockport. Andersen has about 27 years of experience in the window replacement business.
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 WindowsA 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. Not all of Andersen's offerings are Energy Star certified, so make sure you mention that you're interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in South Lockport?Prices are not available on Andersen's website because the cost of window installment depends on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more detailed information on the cost, you can request a quote from the company.

Universal Windows Direct
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Makes charitable contributions
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Lifetime warranty
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Manufactures products in-house
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Quality of service will depend on your area
Universal Windows Direct provides the best warranty in South Lockport. This company has been in business since 2002 and currently serves 27 states nationwide. Hundreds of positive reviews on customer review websites back the provider's reputation.
Universal may be the company for you if you want one that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to ask your Universal representative when inquiring about services.
How much does Universal Windows Direct cost in South Lockport?Universal does not detail prices on its website, but 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. If you'd like to know for sure, you can request a quote on the company's website.
Please note that the companies in this section are national, meaning the quality of the service may depend on your local crew. We have tried to remain unbiased and transparent by mentioning both pros and cons for each provider.
More Window Replacement Companies in South Lockport
Comfort Windows & Doors
Tonawanda, NY-
Free Quotes
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Good Customer Service
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Price Transparency
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Locally Recognized for Quality
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 Window Designs
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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-
Arrives on Time
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Locally Recognized for Quality
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Free Quotes
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Excellent Customer Service
Services Offered
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Custom Windows
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Residential Windows
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Commercial Windows
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Double-Hung
Wonder Windows Buffalo
Buffalo, NY-
Free Quotes
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Consistent Workmanship
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Helps Educate Customers
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Arrives on Time
Services Offered
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Glass Showers
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Residential Windows
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Custom Window Designs
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Double-Hung
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Sliding Glass
Twin City Glass
North Tonawanda, NY-
Helps Educate Customers
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Arrives on Time
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Good Customer Service
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No-fee Quotes
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-
Price Transparency
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Arrives on Time
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Educational Website
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Excellent Customer Service
Services Offered
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Custom Windows
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Architectural Glass
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Sliding Glass
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Double-Hung
Window Factory Outlet
Buffalo, NY-
No-Hassle Pricing
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Good Customer Service
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Dependable Service
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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-
No-Hassle Pricing
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Helps Educate Customers
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Free Quotes
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Reliable Service
Services Offered
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Energy-Efficient Options
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Custom Windows
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Commercial Windows
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Double-Hung
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Sliding Glass
A-24 Hour Door National Inc.
Buffalo, NY-
No-Hassle Pricing
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Dependable Service
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Educational Website
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Arrives on Time
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Windows
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Commercial Windows
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Sliding Glass
Granto Glass Block
North Tonawanda, NY-
Educational Website
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Free Quotes
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Good Customer Service
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Supports Charities
Services Offered
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Full-Service Installations
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Custom Windows
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Residential Windows
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Business Windows
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Fast Delivery
William C Rott & Son Inc
Tonawanda, NY-
Helps Educate Customers
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Price Transparency
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Reliable Service
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Free 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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Commercial Windows
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Double-Hung
Renewal By Andersen of Western New York
Depew, 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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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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Educational Website
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Free Quotes
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Consistent Workmanship
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
Nexgen Windows & Doors LLC
East Amherst, NY-
Award-Winning
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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-
Excellent Customer Service
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No-Hassle Pricing
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Free Quotes
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Educational Website
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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Business Windows
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Sliding Glass
Glass Replacement Buffalo, NY | Mirror Glass & Shower Doors
Hamburg, 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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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
Paramount Windows & Doors
East Aurora, NY-
Helps Educate Customers
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Free Quotes
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Excellent Customer Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Custom Windows
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Full-Service Installations
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Commercial Windows
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Double-Hung
Big L Windows & Doors
Cheektowaga, NY-
Free Quotes
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Arrives on Time
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No-Hassle Pricing
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Consistent Workmanship
Services Offered
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Custom Windows
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Commercial Windows
Home Services at The Home Depot
Lockport, NY-
Price Transparency
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Helps Educate Customers
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Reliable Service
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No-fee Quotes
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-
Helps Educate Customers
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Good Customer Service
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No-fee Quotes
Services Offered
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Custom Window Designs
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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-
No-Hassle Pricing
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Free Quotes
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Excellent Customer Service
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Helps Educate Customers
Services Offered
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Custom Window Designs
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Sliding Glass
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Commercial Windows
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Double-Hung
Aberdeen Plate Glass
Buffalo, NY-
Educational Website
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Free Quotes
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No-Hassle Pricing
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Good Customer Service
Services Offered
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Custom Windows
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Residential Windows
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Commercial Windows
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Sliding Glass
David's Windows & Doors
Buffalo, NY-
Dependable Service
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Excellent Customer Service
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Free Quotes
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No-Hassle Pricing
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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Commercial Windows
Braymiller Builders of WNY Inc.
Hamburg, NY-
Price Transparency
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Good Customer Service
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Helps Educate Customers
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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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Dependable Service
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Timely Service
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No-Hassle Pricing
Services Offered
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Custom Windows
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Aluminum Window Frames
Glass America
Buffalo, NY-
Price Transparency
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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 Windows
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Business Windows
Medina Windows
Lyndonville, NY-
Reliable Service
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Good Customer Service
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No-fee Quotes
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No-Hassle Pricing
Services Offered
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Custom Window Designs
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Residential Windows
How Installing Energy-Efficient Windows in South Lockport Saves You Money
There are quite a few benefits of upgrading to energy-efficient windows. Some reasons you may want to consider making the change include the following:
- Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes usually have windows that are outdated, leaky or maybe even damaged in some way. Upgrading your windows could help raise the value of your property if you decide to sell.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
- Decrease your carbon footprint: Reducing the amount of energy you use also lowers your carbon emissions. You could reduce it by about 65 pounds.
- Save money on power bills: According to the Department of Energy, heat gained or lost through windows accounts for about 25-30% of household energy use. Upgrading to energy-efficient models can help lower how much you have to pay, therefore saving you about 12% more on your bills.
Estimated Cost of Window Replacement in South Lockport
Windows come in different shapes and sizes, so costs and services will vary remarkably. Here are the average costs and services that you can find from the average window installation company.
How Much Do New Windows Cost?
Although the national average to replace a single window is about $600, it can range anywhere from $200 to $1,200. But costs will differ considerably based on the current condition of your home, the quality of your products, your location and the number of windows you need. A lot of window companies also offer door installations and other add-ons like baths, coating, shutters and more. Additional services will increase overall project costs.
With windows, efficiency is the most important factor for many homeowners. Windows with higher efficiency may cost more upfront, but by increasing the efficiency of your home — especially during the winter — they can give you decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save South Lockport homeowners $335+ each year after replacing single-pane windows.
Costs will also vary depending on the material of your frame. Aluminum frames have the lowest price. They're sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made from wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.
What Services do Window Installers Offer?
Generally, there are two types of window replacement services companies provide: full-frame and pocket installations.
A full-frame installation replaces the full window, including the sill, frame, trim and the window panes. As this kind of installation requires more time, it will cost more than a pocket installation. Pocket installations (or retrofits) involve installing a new window within its existing frame, which makes pocket installations less labor-intensive and costly. However, if the frame has any damage or rot, you should opt for a full-frame installation instead.
Your window installer can help you choose which type of installation you need.
Best Affordability
Window World
- Low prices relative to competitors
- Large serice area
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Great industry reputation
- No lifetime warranty
Best Warranty
Universal Windows Direct
- Makes charitable contributions
- Lifetime warranty
- Manufactures products in-house
- Quality of service will depend on your area
How We Choose the Best Window Installers in South Lockport
The EcoWatch Reviews team differs from other reviewers since we're examining these companies through a sustainability lens. Along with energy efficiency, we assessed several window installers in South Lockport and ranked them based on the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve South Lockport so you can find a quality window installation company near you.
Work Quality
When installing new windows, the quality and breadth of services can often play just as important of a role in insulation and performance as the type of window you opt for. We do give window installers more points if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another very important review factor. If the majority of customers don't have nice feedback about their experience with a certain installer, you won't see it featured on EcoWatch.
Cost
This one is a give-and-take: similar to other services, cheap window installation companies are not going to provide the highest quality service. On the other hand, we want to ensure we're highlighting companies that provide a wide range of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have been in the industry for quite some time. Window installers that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.
South Lockport, NY Window Replacement FAQs
What is the average cost to install windows?
The average cost of installing one window can range between $450 and $650. There are many factors that influence the price, which include local labor costs, how energy-efficient the windows are, the number of windows, the materials used in designing the windows, your property's location and styles and sizes of windows.
Which type of window is the best?
A window's energy efficiency is affected by a variety of factors, including the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are often the most energy-efficient and are certified by the U.S. Department of Energy.
When do I have to use a window installation company?
You should hire a window installation company whenever you want new windows. Installing windows is a complex process that can be difficult and time-consuming, so it's best left to the professionals.
What time of year is the best time to replace my windows?
Replacement windows can be installed at any time, but autumn might be the best season. Regardless of when you install them, the contractors will take steps to make sure that too much hot or cold air doesn't get into your home, so the temperature outside doesn't necessarily matter that much. What's most important is that the weather should be dry.
Should I replace my windows all at once?
If you're upgrading your windows to save on your energy bills, replacing all the windows at the same time is the only way to see a noticeable difference. On the other hand, if you have just a few windows that are damaged or drafty, you can replace just those.