20 Best Window Companies in Round Lake, IL (2025 Reviews)
Thinking about upgrading your home's windows? We’ve got you covered in this list of the best window installation companies.
We analyzed all the top-rated window companies in Round Lake 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
The EcoWatch Reviews team is all about finding solutions for eco-conscious homeowners in Round Lake. During the winter months, the last thing you want is your heat to leak out of your outdated, drafty windows.
Fortunately, saving you money with upgraded windows also helps our goals of reducing energy usage for the environment.
So if you’re building a new home, renovating or replacing your windows in Round Lake, this is the best place to get started.
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 Round Lake
The EcoWatch team examined dozens of providers that serve the Round Lake area to find the best window installation companies that fit our standards. The providers in this article scored the best in our review categories, which include energy-efficient offerings, local expertise, price, customer service, availability 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 has windows expertise in Round Lake. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window installation business for about 27 years.
You may want to consider going with Window World if you're looking for 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 WindowsThere are a wide range of window types available from Window World, some of which are Energy Star products. 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 Round Lake?Window World does not list prices on its website, but it's known for offering some of the most affordable window installations around. You can inquire about a free quote on its website for more information about pricing.

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 has the best availability in Round Lake. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation business for about 27 years.
You may want to consider going with Andersen if you're looking for 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 WindowsThere are a wide range of window types available from Renewal by Andersen, some of which are Energy Star products. 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 Round Lake?Andersen does not list 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. You can inquire about a free quote on its website for more information about pricing.

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 has the best residential windows in Round Lake. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has been in the window installation business for about 16 years.
You may want to consider going with Window Nation if you're looking for 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 WindowsThere are a wide range of window types available from Window Nation, some of which are Energy Star products. 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 Round Lake?Window Nation does not list 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. You can inquire about a free quote on its website for more information about pricing.
Please note that the companies in this section are national, which means the quality of the service may vary depending on your local crew. We have tried to remain unbiased and transparent by including pros and cons for each company.
More Window Companies in Round Lake
Renewal by Andersen of Chicago
Glenview, ILPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Custom Window Designs
Skylights
Glass Doors
Double-Hung
Bay Windows
Power Home Remodeling
Chicago, ILGood Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Goverla Windows and Doors
Fox River Grove, ILFree assessment
Educational Website
Price Transparency
Services Offered
Vinyl Frames
Wood Frames
Glass Doors
Double-Hung
Pocket Windows
Bay Windows
Energy-Efficient Options
Window Replacement/Installation
Window Door Pro Installation
Buffalo Grove, ILPrice Transparency
Timely Service
Free assessment
Good Customer Service
Educational Website
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Glass Doors
Your Window Solutions
Lake in the Hills, ILFree assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Double-Hung
BUZ's Windows Replacement & Installation
Algonquin, ILGood Customer Service
Free assessment
Price Transparency
Services Offered
Wood Frames
Window Replacement/Installation
Energy-Efficient Options
Vinyl Frames
Screen Medix
Palatine, ILGood Customer Service
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Screen Repair
Glass Doors
Window Repair
Professional Home Improvement, Inc.
Arlington Heights, ILServices Offered
Window Replacement/Installation
Energy-Efficient Options
WarmDreams Windows & Doors
East Dundee, ILPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Energy-Efficient Options
Bay Windows
Glass Doors
Custom Window Designs
Double-Hung
Window Replacement/Installation
Beka Window Repair
Wheeling, ILGood Customer Service
Free assessment
Price Transparency
Services Offered
Glass Showers
Glass Repair
Glass Doors
Bay Windows
Vinyl Frames
Window Replacement/Installation
Tempered Glass
Wood Frames
Double-Hung
Metal Frames
Energy-Efficient Options
Window Repair
Hoffman Window Replacement Company
Hoffman Estates, ILPrice Transparency
Timely Service
Good Customer Service
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Vinyl Frames
Great Outlook Glass
Dundee Township, ILFree assessment
Services Offered
Mirrors
Window Replacement/Installation
Glass Showers
Glass Doors
Glass Repair
FST Window Replacement & Installation
Glenview, ILPrice Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Contractor BG-High Quality Roofing and Exterior Repair Services
Mt Prospect, ILFree assessment
Services Offered
Glass Doors
Window Replacement/Installation
Royalty Windows
Glenview, ILPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Bay Windows
Window Replacement/Installation
Double-Hung
Vinyl Frames
Custom Window Designs
Chicago Windows Solutions
Schaumburg, ILTimely Service
Price Transparency
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Double-Hung
Bay Windows
Vinyl Frames
EV Windows & Doors, Inc.
Des Plaines, ILGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Glass Doors
Metal Frames
Wood Frames
Double-Hung
Window Replacement/Installation
Vinyl Frames
Fiberglass Frames
Northwind Exteriors
Park Ridge, ILEducational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Real Exteriors
Schiller Park, ILTimely Service
Price Transparency
Educational Website
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Vinyl Frames
Durabuilt Home Improvements, Inc.
Elmhurst, ILPrice Transparency
Good Customer Service
Services Offered
Vinyl Frames
Window Replacement/Installation
Double-Hung
Bay Windows
Glass Doors
Wood Frames
Calculate how much you can expect to pay for window installation and replacement in Round Lake, 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 Round Lake Saves You Money
By switching to energy-efficient windows, you and your family can enjoy several benefits, including:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.
- Decrease your carbon footprint: In Round Lake, you can cut your indirect greenhouse gas emissions by about 449 pounds per year once you install energy-efficient windows.
- Save money on energy bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of household energy use. Upgrading to energy-efficient models can help reduce how much energy is used in your home, therefore saving you about 12% more on your bills.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, especially if you have an older home.
Estimated Cost of Window Replacement in Round Lake
Windows come in various shapes and sizes, so costs and services will differ greatly. Here are the typical costs and services that you’ll find from the average window installation company.
How Much Do New Windows Cost?
On average, Round Lake homeowners can anticipate their replacement window installations to range from $250 to $1,200. The most common installations sit at approximately $600. But costs differ considerably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also provide door replacements, which will make your project cost more.
With windows, efficiency is one of the most important factors for many homeowners. Efficient windows may cost more initially, but by increasing the efficiency of your home — especially during the summer and winter — they can give you many years of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Round Lake homeowners $298+ a year after replacing single-pane windows.
Another factor that affects the overall cost is the material of the frame you pick. Aluminum frames are generally the least pricey and are sturdy and light, but they provide 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 as well and cost somewhere between the other two.
What Services do Window Installers Offer?
The first step of a window installation is to think about whether you want a full-frame or pocket installation.
Full-frame installations are usually recommended when you want to change the style of your windows or your window has a lot of deterioration. With this service, your professionals will replace the whole window, including the frame, trim and sill. A pocket installation means replacing a window without taking out the complete frame, which is generally cheaper than a full-frame installation.
Your window installation company will be able to help you choose what’s best for your needs. In Round Lake, the decision will mostly be based on the age of your windows and if there’s any moisture damage. Wood can decay if it’s not properly maintained over the years, so it’s a good idea to have a professional evaluate your frames and window sills.
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 Round Lake
In our search to find the most reliable, eco-friendly window installers in Round Lake, the EcoWatch team assessed dozens of companies before landing on these. Along with energy efficiency, we reviewed each installer and ranked them using the following methodology:
Service Area
This one is pretty self-explanatory, but we’ve chosen to highlight window installers that serve the Round Lake area so you can find the best window installation company near you.
Work Quality
When it comes to new windows, the quality and range of services often plays just as important of a role in insulation and performance as the type of window you opt for. 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
We analyzed patterns in recent customer feedback to find the companies with the most consistent customer satisfaction. Customer satisfaction may be the most important factor, as it reflects the quality of services across nearly every category, including warranty, cost, quality of installation, professionalism, quality of parts and more.
Cost
Cheaper windows don’t necessarily mean better windows, but we know many of our readers try to keep costs low when possible. When analyzing providers’ prices, we gave higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
As discussed previously, windows are a sizable investment, so you’ll want to be certain that investment is protected. Window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have been in the industry for quite some time. Window installation companies that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Round Lake, IL Window Replacement FAQs
How much should a window install cost?
The national average cost of replacing a window is around $600 but can range between $200 and $1,200, depending on a few different factors. The price is often influenced by the size of the window, the location of your property and the type and material of the window. Also, bear in mind that energy-efficient windows may cost more initially 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 transom windows, double-hung and single-hung windows, casement windows, bay windows, slider windows, picture windows and awning windows.
When should I use a window installation company?
You should use a window installation company whenever you want to replace your windows. Installing windows is a complex process that can be difficult and time-consuming, so it’s best handled by the professionals.
How long does window installation typically take?
Each window takes about 30 minutes to install depending on the kind of window. However, the window installation can be a two-day job — or more — if you need to have a lot of windows installed.