20 Best Window Companies in Lockport, IL (2025 Reviews)
Thinking about replacing your home's windows? We’ve got you covered in this guide to the top window installation companies.
We analyzed all the top-rated window companies in Lockport and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
A review of the top window installation companies in Lockport may not seem like the most riveting article on EcoWatch, but trust us, windows impact your life more than you might think. When it’s the middle of winter, your old and drafty windows could be making your home harder to heat and costing you more in power bills.
That’s also bad for the environment because the extra energy used by damaged windows increases your carbon footprint.
Efficient windows are particularly important in Lockport, where the temperature varies throughout the year. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $307 per year.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in Lockport
The EcoWatch Reviews team researched several window installation companies across Lockport to narrow our list down to the top ones. We assessed the installers on energy-efficient offerings, customer service, price, coverage area, local experience and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World offers windows expertise in Lockport. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This provider has 27 years of experience in the window installation business, and it has established itself as one of the most respected companies in Lockport. Hundreds of positive reviews on customer review websites back the company's reputation.
It has established itself as a company 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. 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 does not mention prices on its website, but it's known for offering some of the most affordable window installations around. Getting a free quote on its website is the best way to know for sure.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen offers the best availability in Lockport. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the window installation business, and it has established itself as one of the most respected companies in Lockport. Hundreds of positive reviews on customer review websites back the company's reputation.
It has established itself as a company that 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. 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?Andersen does not mention prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Getting a free quote on its website is the best way to know for sure.

Window Nation
Award-winning company
Manufactures products in-house
Custom designs
Wide variety of products and services
Installation not covered by warranty
Limited service area
Window Nation offers the best residential windows in Lockport. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This provider has 16 years of experience in the window installation business, and it has established itself as one of the most respected companies in Lockport. Hundreds of positive reviews on customer review websites back the company's reputation.
It has established itself as a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.
How much does Window Nation cost in Lockport?Window Nation does not mention prices on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. Getting a free quote on its website is the best way to know for sure.
We aim to stay unbiased and transparent by including pros and cons for every company. Additionally, any partnerships do not influence our rankings.
More Window Companies in Lockport
Renewal by Andersen of Chicago
Lockport, ILPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Double-Hung
Skylights
Window Replacement/Installation
Custom Window Designs
Glass Doors
Bay Windows
Power Home Remodeling
Chicago, ILGood Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Window Nation
Romeoville, ILEducational Website
Services Offered
Double-Hung
Energy-Efficient Options
Vinyl Frames
Glass Doors
Custom Window Designs
Window Replacement/Installation
Bay Windows
AT Construction, Inc.
Orland Park, ILEducational Website
Free assessment
Price Transparency
Good Customer Service
Timely Service
Services Offered
Window Replacement/Installation
Rite Way Glass & Mirror
Woodridge, ILEducational Website
Good Customer Service
Price Transparency
Free assessment
Timely Service
Services Offered
Mirrors
Glass Doors
Screen Repair
Energy-Efficient Options
Window Replacement/Installation
Tempered Glass
Glass Showers
Window Repair
New Edg Window Replacement
Naperville, ILServices Offered
Window Repair
Window Replacement/Installation
Royal Craft Home Remodelers Inc.
Downers Grove, ILFree assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
WINBUZZ Windows Replacement
Downers Grove, ILFree assessment
Good Customer Service
Services Offered
Energy-Efficient Options
Vinyl Frames
Double-Hung
Bay Windows
Window Replacement/Installation
Glass Doors
Schmidt Exteriors, Inc.
Aurora, ILPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Bay Windows
Custom Window Designs
Vinyl Frames
Glass Doors
Window Replacement/Installation
Energy-Efficient Options
Two Panes Glazing, LLC
Wheaton, ILGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Window Repair
Energy-Efficient Options
Glass Doors
BUZ Windows Replacement & Installation
Carol Stream, ILFree assessment
Services Offered
Energy-Efficient Options
Glass Doors
Bay Windows
Window Replacement/Installation
Double-Hung
Pegasus windows Inc.
Westchester, ILFree assessment
Good Customer Service
Price Transparency
Services Offered
Bay Windows
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Double-Hung
Durabuilt Home Improvements, Inc.
Elmhurst, ILPrice Transparency
Good Customer Service
Services Offered
Glass Doors
Vinyl Frames
Wood Frames
Bay Windows
Double-Hung
Window Replacement/Installation
EXTERIORS Windows & Siding Installers
St. Charles, ILGood Customer Service
Free assessment
Price Transparency
Services Offered
Vinyl Frames
Window Replacement/Installation
Energy-Efficient Options
ACE Roofing Contractors & Roof Replacement
St. Charles, ILFree assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Real Exteriors
Schiller Park, ILEducational Website
Good Customer Service
Timely Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Vinyl Frames
Energy-Efficient Options
Chicago Windows Solutions
Schaumburg, ILFree assessment
Timely Service
Price Transparency
Services Offered
Bay Windows
Vinyl Frames
Double-Hung
Window Replacement/Installation
Glass Doors
Northwind Exteriors
Park Ridge, ILPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Hoffman Window Replacement Company
Hoffman Estates, ILGood Customer Service
Free assessment
Timely Service
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Vinyl Frames
Contractor BG-High Quality Roofing and Exterior Repair Services
Mt Prospect, ILFree assessment
Services Offered
Window Replacement/Installation
Glass Doors
Calculate how much you can expect to pay for window installation and replacement in Lockport, IL using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Lockport Saves You Money
By switching to energy-efficient windows, you and your family can benefit in several ways, including:
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
- Decrease your carbon footprint: Reducing how much energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 449 pounds.
- 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, drafty or maybe even damaged in some way. Updating your windows could help raise the value of your property if you decide to sell.
- Save on power bills: Switching to energy-efficient windows reduces your energy bills by about 12% because you use less energy.
Estimated Cost of Window Replacement in Lockport
Let’s take a look at the cost of updating your windows and the types of services offered by installers.
How Much Do New Windows Cost?
On average, Lockport homeowners can expect their replacement window installations to range from $250 to $1,200. The most common installations sit at approximately $600. These estimates are based on specific characteristics of your installation, such as type, material, size, the location of your home, number of windows and more.
It’s also worth keeping in mind that energy-efficient windows will usually cost more upfront, but Energy Star estimates that upgrading the windows on your Lockport home translates to an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. How much you’ll save by installing energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
Another factor that affects the overall cost is the material you pick for your frame. Aluminum frames are generally the least expensive and are sturdy and light, but they offer poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation and cost somewhere between the other two.
What Services do Window Installers Offer?
There are generally two types of window replacement services: full-frame and pocket installations.
Full-frame installations involve replacing the whole window — the sill, frame, trim and all. These are most common when you want a new style for your windows or when it has significant deterioration. Full-frame installations require more time and labor and will increase overall costs. Pocket installations are simpler and won’t carry as large a bill, as they entail merely replacing the window within its existing frame. But if the frame has any damage, you may have to get a full-frame installation instead.
If you’re hiring a reputable window installation company, your company can recommend the best type for your project. In Lockport, the choice will mostly be based on the efficiency of your home and how old your existing frames are.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in Lockport
EcoWatch differs from most reviewers, as we’re examining these companies through a sustainability lens. Along with energy efficiency, we analyzed each installer and assigned rankings using the following methodology:
Service Area
Since this is a guide for Lockport, we only included companies that cover the city. There are certainly other reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in Lockport.
Work Quality
When selecting new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the type of window you get. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don’t have nice feedback about their service from a certain window installation company, you won’t see it featured on EcoWatch.
Cost
This one is a give-and-take: as with other services, cheap window installation companies won’t always provide the highest quality service. On the other hand, we want to make sure we’re highlighting companies that provide a spectrum of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed previously, windows are a serious investment, so you’ll want to make sure that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Lockport’s climate, homeowners need to be wary of rot, low efficiency and water damage. We factored in local experience to reflect the ability of Lockport window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Lockport, IL Window Replacement FAQs
What is the typical cost to install windows?
The average cost to install a window can range between $450 and $650. There are a variety of factors that influence how much it costs, such as local labor costs, the number of windows, how energy-efficient the windows are, your property’s location, styles and sizes of windows and the materials used in designing the windows.
Which type of window is the best?
A window’s energy efficiency depends on a variety of factors, such as the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are usually the most energy-efficient and are certified by the U.S. Department of Energy.
Can I install my own windows?
While you can install your own windows, doing so is time-consuming and requires a lot of handiness. Hiring a professional can help ensure that the installation is done properly and that you can avoid spending the time and effort of doing it yourself.
When is the best time of year to replace windows?
Replacement windows can be installed at any time, but warmer weather is typically better. No matter when you install them, the contractors will take steps to ensure that too much hot or cold air doesn’t get into the home, so the temperature outside doesn’t necessarily matter that much. What’s more important than the temperature is that the weather should be dry.