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10 Best Window Replacement Companies in Flagg, IL

More than 380 people have received a free quote in the last 60 days.

Last Updated: February 25, 2025

Whether you want to increase your home's value or decrease your energy bills, replacing your windows is an excellent idea. In Flagg, you could save around $309 per year on your power bills by upgrading your windows. Drafty windows can reduce your home’s energy efficiency by up to 30%, according to the Department of Energy. Our guide to the top window installation companies in Flagg will help you find the right installer for you.

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.
Top Pick
4.1/5
  • Great quality
  • Free assesment
  • Timely Service
Most Customizable
4.0/5
  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty
Best Customer Service
4.0/5
  • Award winning company
  • Products made in the US
  • Knowledgeable sales representatives

Top 10 Best Window Replacement Companies in Flagg

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

Renewal by Andersen of Chicago

Renewal by Andersen of Chicago Logo

Our Rating

User Rating

14503 S Gougar Rd #800, Lockport, IL 60491 (866) 836-2764 renewalbyandersen.com

Educational website

Good customer service

Free assessment

Price transparency

Services Offered

Bay windows
Double-hung
Glass doors
Window replacement/installation
Skylights
Custom window designs

Argo Glass & Windows - Window Repair & Glass Replacement

Argo Glass & Windows - Window Repair & Glass Replacement Logo

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User Rating

317 W Colfax St, Palatine, IL 60067 (847) 696-8044 argowindowrepair.com

Free assessment

Price transparency

Educational website

Services Offered

Glass repair
Storm/impact windows
Window replacement/installation
Metal frames
Glass doors
Wood frames
Double-hung
Energy-efficient options
Window repair
Tempered glass
Vinyl frames
Screen repair

Rite Way Glass & Mirror

Rite Way Glass & Mirror Logo

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User Rating

6750 IL-53, Woodridge, IL 60517 (630) 960-4420 ritewayglass.com

Price transparency

Free assessment

Timely service

Educational website

Good customer service

Services Offered

Mirrors
Window repair
Glass showers
Screen repair
Tempered glass
Glass doors
Energy-efficient options
Window replacement/installation

Woodland Windows & Doors - Showroom

Woodland Windows & Doors - Showroom Logo

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User Rating

25W355 Lake St, Roselle, IL 60172 (630) 869-1450 woodlandwindows.com

Free assessment

Educational website

Price transparency

Good customer service

Services Offered

Custom window designs
Bay windows
Window replacement/installation
Vinyl frames
Custom glass
Skylights
Glass doors
Double-hung

Feldco Windows, Siding & Doors

Feldco Windows, Siding & Doors Logo

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User Rating

1656 Winthrop Dr, Des Plaines, IL 60018 (866) 433-5326 4feldco.com

Educational website

Price transparency

Free assessment

Good customer service

Services Offered

Window replacement/installation
Glass doors
Bay windows
Wood frames
Triple pane glass
Energy-efficient options
Double-hung
Custom window designs
Vinyl frames

Freedom Builders & Remodelers

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User Rating

1125 Milford Ave, Rockford, IL 61109 (815) 985-0310 rockfordremodeling.biz

Educational website

Price transparency

Free assessment

Services Offered

Glass doors
Window replacement/installation

Rusco Windows & Doors

Rusco Windows & Doors Logo

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User Rating

1405 Centre Cir, Downers Grove, IL 60515 (630) 796-4624 rusco-windows.com

Educational website

Good customer service

Price transparency

Free assessment

Timely service

Services Offered

Skylights
Window replacement/installation
Custom window designs
Double-hung
Glass doors
Energy-efficient options
Bay windows

Rhino Glass & Window

Rhino Glass & Window Logo

Our Rating

User Rating

2045 Oakland Ave, Crest Hill, IL 60403 (815) 722-9700 rhinoglassrepair.com

Good customer service

Free assessment

Price transparency

Services Offered

Window repair
Storm/impact windows
Tempered glass
Bay windows
Window replacement/installation
Energy-efficient options
Double-hung
Glass doors
Glass repair

Naperville Windows and Doors

Naperville Windows and Doors Logo

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User Rating

1355 Illinois Rte 59 #1D, Naperville, IL 60564 (630) 904-9644 napervillewindowsanddoors.com

Timely service

Good customer service

Price transparency

Educational website

Free assessment

Services Offered

Wood frames
Skylights
Fiberglass frames
Glass doors
Bay windows
Window replacement/installation
Vinyl frames

Schmidt Exteriors, Inc.

Schmidt Exteriors, Inc. Logo

Our Rating

User Rating

1585 Beverly Ct # 116, Aurora, IL 60502 (630) 406-0444 schmidtexteriors.com

Educational website

Free assessment

Price transparency

Good customer service

Services Offered

Custom window designs
Glass doors
Bay windows
Energy-efficient options
Vinyl frames
Window replacement/installation
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on window replacement companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How Much Does Window Installation Cost In Flagg?

Window installation and replacement costs are influenced by a number of factors, including the number and size of the windows, the materials you choose, and how difficult your windows are to access or install. On average, homeowners in Flagg will spend roughly $280 per window*. Below are additional cost breakdowns. *Cost data based on sample pricing for window installation from multiple retailers and adjusted for local cost of living.

When To Replace Windows

Adding new energy-efficient windows can substantially enhance your home's value, comfort, insulation, noise reduction, and appearance. Signs that it's time to invest in new windows include the following:

  • Outdated and inefficient window styles that reduce your home’s curb appeal.
  • Cold air and drafts leaking in from old, loose-fitting windows.
  • Condensation issues, fogging between window panes, or rotting window frames that allow moisture intrusion into the home.
  • Windows that are difficult to close, open, or lock properly due to wear and age.
  • High energy bills and a chilly house from poor insulation around windows.

How To Choose a Window Company

For a successful window replacement, you want to find an installation contractor with proven expertise. Below, we go over the most important considerations when selecting a window installer.

Experience

Look for highly-regarded local companies with a long track record of experience successfully installing all types of windows. These providers are more likely to understand Flagg's climate and your requirements. Request references from recent clients to confirm the quality of a company's work.

Certifications

Choose an installer that’s certified like leading window companies, and that has Fenestration and Glazing Industry Alliance (formerly AAMA) certification. Suitable credentials indicate they've received appropriate instruction in installation best practices. Verify that installers are staff rather than subcontractors, and confirm that any technicians working on your home have certification.

Reputation

Read through online feedback from past clients, check the Better Business Bureau (BBB), and request local references. Review customer feedback to make sure that the provider consistently delivers quality work and good customer service. Avoid companies that have complaints of shoddy work or unfinished jobs.

Process

The highest-quality window installation providers will supply a detailed project plan and schedule, clear expectations, and an overview of material and installation options. Avoid companies that offer unclear quotes or timelines that lack necessary details. Look for continual contact throughout to avoid surprises once work gets underway.

Warranties

Look for window companies that offer assurances on their installations, and that offer warranties on materials and labor. This shows faith in their work. Also look for unlimited lifetime warranties that can transfer to new homeowners.

Materials

Ensure that a company uses durable, energy-efficient window brands that fit your budget. Look for good energy ratings, design flexibility, and enhanced UV protection. Confirm the window materials come with their own manufacturer warranties as well.

Frequently Asked Questions About Window in Flagg, IL

In Flagg, the best time to install windows is when temperatures are mild, generally in the spring or fall. This enables professionals to work with less worry about extreme temperatures.

The best type of replacement windows for your Flagg home depends on the year your home was built –the average house in Flagg was built around 1968. For older homes, you may want to consider efficient windows such as double-pane windows, which are made to keep your home cool in the summer and warm in the winter. Wood frames also have a classic look that's great for older homes. For newer homes, you might want to think about vinyl windows, which are affordable, durable and have a modern look.

Windows made from wood, fiberglass, or vinyl can last the longest, with some lasting for close to 45 years. Vinyl windows are particularly durable and low-maintenance, making them a good choice if you want windows that will last a long time. Double or triple glazing can help reduce your cooling and heating bills over time.

The process for window installation typically includes taking measurements, removing the existing windows, installing the new windows, inspecting for proper sealing, and applying caulk around the edges of the frames. Extra steps may be necessary depending on the type of window being installed.

You should wipe away any debris or dirt buildup on the windows when they get dirty. Additionally, you ought to check your windows every month to make sure they're working correctly. It's also a good idea to have a professional inspect your windows once a year for any potential damages or issues.

Getting windows installed by a professional can provide a number of benefits. Professional installers can make sure that your windows are properly fitted, sealed, and insulated, minimizing air leakage and maximizing energy efficiency. Professional installers are also trained in the necessary tools and techniques to do the job right, which can save you time and money.

Other Flagg, IL Home Services