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Simply fill out the form below to get started and a Customer Delight Representative will reach out to you shortly to confirm your project details.

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Why Choose Feldco?

Made in the USA

Feldco’s products are proudly made in the USA, with unparalleled craftmanship and care. Built to withstand the harshest Midwestern elements, and made to last.

We're Local

Originally starting as a Chicago window replacement company in 1976, we've expanded to 13 locations across Illinois, Indiana, Iowa, Michigan and Wisconsin within a large service area.

Warranty

Feldco stands behind its products. We work hard to provide our customers with unsurpassed customer service, a quality product at a great value, with the industry’s strongest warranties.

Value

When you choose our products, you’re not just making a purchase; you’re making an investment in durability and reliability. Our commitment to value means you get more for your money.

LEARN MORE ABOUT FELDCO

Replacement Windows, Siding, Doors & Roofing

Serving Illinois, Iowa, Wisconsin, Indiana & Michigan

Since 1976, we’ve been dedicated to improving lives, one home at a time. Replacing your windows, siding, doors and roofing is easy with Feldco. From our financing options to energy efficient products for your home, our home improvement company is here to make your exterior home remodeling project a success.

45+

Years Of Service

1,500,000+

Windows Installed

1,000,000+

Sq. ft. of Siding Installed

100,000+

Doors Installed

See What Our Customers Are Saying Online

Ed Schneidman

3/30/2025

Gary Kos of Feldco is a very experienced and extraordinarily helpful advisor in selecting windows and doors.

Justine Haka

3/30/2025

This is the third time that we've used Feldco for door and window replacement. Marco is very knowledgeable and extremely helpful. We've been pleased with all our services.

Rick Krajcik

3/30/2025

All the employees projected professionalism.

Marjorie Daly

3/29/2025

Mr. Tanner is great! Explains everything clearly and we are happy with information given.

Blake Rosensteel

3/29/2025

Gary came out and gave us a hassle free quote and was super helpful through the quoting process answering our questions.

Brandon

3/29/2025

Dean was very informational, provided everything we needed to make an educated decision.

Lori

3/28/2025

Friendly and honest, didn’t try to sell me so didn’t need. Great quality for a reasonable price!

Thereasa Murphy

3/28/2025

Ordered today with Tanner. W25cs0258

Kathy Nordgren

3/28/2025

My in home estimate was done by Tanner. He was very knowledgeable and explained everything clearly.

Mikayla Teske

3/28/2025

Easiest home improvement ever! From requesting a quote to installation day was just a few short weeks. Mike Maciejewski was the sales rep who came to our home and completed the quote for the job. He was easy-going and honest. Mike put in the work to meet our needs for window replacement. He kept us updated and informed from start to finish. Scheduling the installation was quick and easy. Jerry showed up at the scheduled time and buckled down to get the job completed. He was an absolute MACHINE, removing the old windows and installing the new Feldco windows. Jerry cleaned up after himself, taking all old material and garbage with him instead of burdening us with the trash. Just a 10/10 job and would recommend Feldco to anyone looking to complete a home improvement job.

Justin Navis

3/28/2025

Dean was a delight. He was clear and thorough, friendly, and not at all pushy to get a deal done.

Kirk Lazich

3/27/2025

Great details, very detailed, friendly,

Beth Hayes

3/27/2025

My sales representative, Matt, was great and answered all questions. He made appointment so easy for me to make this big decision and I can't say enough great things about Matt and helping me get new windows and doors!

Sandy Rice

3/27/2025

Great service and are very easy to work with if you have any issues totally happy.

Megan Malloy

3/27/2025

Zach did such an amazing job from the first home visit and presentation to the final check in after the installation. There was never a time when I couldn’t reach him when I had questions or concerns and anyone who has done large home projects knows how important this is. He was 100% on point throughout the entire process. I wouldn’t hesitate to recommend Feldco to anyone. Thanks Zach!

Alicia Padalino

3/27/2025

So while our windows have not been installed yet (but I'm pretty sure I won't have to take back my rating), I wanted to share our experience so far. When I originally booked the appointment, I spoke with a guy named Sheldon who was super nice and professional. I had a good idea of what the appointment was going to entail and left the conversation with all questions answered. We had our in home consultation with Stephen Hawkins (I was also very impressed they emailed me a pic of who was coming and a little bio about them). He was extremely personable and knowledgeable about the company as a whole and about the windows/installation process. We ended up signing up and placing deposit! We are excited to get this process started and will definitely be referring people to you!

Sheila Antosch

3/27/2025

We were extremely pleased with Feldco windows. The personal representative, Jose Ayala, showed us everything in the showroom. He explained the pros and cons of each part of the windows. David Hunt gave us such accurate measurements of our window openings that every custom manufactured window was a perfect match. The installers, Robert Gonda & Lada Ivan did excellent work. Robert showed us his work every step of the way. Lada took out the old windows carefully. None of our wooden interior woodwork was damaged. Lada also made sure there was no residual mess left behind inside or outside. Robert did such a good job capping with the aluminum that our exterior trim looked as good as ever-- even better. The color match was perfect. The new triple pane windows deaden the noise of living by a busy corner. Overall we highly recommend Feldco and their excellent employees to anyone considering new windows. Sheila & Jerry Antosch of Rockford.

Theresa Crawfis

3/27/2025

We had Joe Janisch come to our house to look at doing our windows,siding,and doors. Joe was amazing and so knowledgeable, he answered all of our questions. He also had a lot of work ahead of him just to quote us as we were asking for a lot, he did amazing and gave us every possible saving he could.

How Can We Help Renew Your Home?

ADDITIONAL HOME RENEWAL SERVICES

GUTTERS

Replace your old gutters with new aluminum gutters.

LEARN MORE

SOFFIT & FASCIA

Replace your old soffit when brand new, heavy duty soffit and fascia.

LEARN MORE

GARAGE DOORS

Our sister company, Danley's, offers garage door replacement in Chicagoland.

VISIT DANLEY'S

We Make It Easy to Renew Your Home.

Contact Us

Simply give us a call at 866-4FELDCO or fill out our online form.

In-Home Consultation

A Feldco Product Specialist will meet with you to determine your home renewal project needs and details.

Installation

A professional team from Feldco will complete your project and ensure that you're delighted from start to finish!

GET A FREE QUOTE

Let's Get Social!

Rewarding Careers at Feldco

Here at Feldco, we strive for delight – our goal is to always ensure our customers have not just a good experience, but a great one. But our mission of delight doesn’t stop there; it extends inwards too, and is of the utmost importance. We’re happy to say we’ve succeeded in that mission – Feldco is incredibly proud to announce we've been named to the Chicago Tribune's 2023 Top Workplaces list, for the 10th year! We're thrilled to have been included and thankful to our employees, who made this happen! Talk about delight!

Learn More

Learn More from the Home Renewal Experts

Feldco Named Top Workplace for the 7th Time

Feldco Windows, Siding, Doors and Roofing is named a top workplace for the 7th time. Come find out why!

Despite being a low maintenance material, there will be times that your siding requires cleaning. Here's how to remove those

Roof popping is a common sound that forces a homeowner to take notice of this particular area. Here's why your roof may be po

Is it time to replace your windows? Discover the key indicators and benefits of vinyl window replacement in this comprehensiv

Which one is right for your home? Are you trying to maximize a view in a certain part of your house? Here are the 10 best win

Vertical siding has many benefits that are appealing to so many homeowners. Now’s your chance to transform your home and impr

Your entry door goes through deterioration and damage. Mostly, the damage is done to the frame but the entry door frame repai

Many homeowners think they need operable windows in all room of their home. However, there are many benefits to fixed windows

When it comes to choosing the best type of entry door for your home, you'll want to consider either a steel or fiberglass doo

Houseplant owners will tell you the first thing if you want to keep your plants alive, you must know the difference between d

Find out what type of storm door is best for your home by reading this very helpful article that goes over all the many types

Winter is coming and you're thinking about saving money. It all starts with your sliding patio door. Check out how to winteri

Want to know the most surefire way to brighten up your home? Here’s a few tips and tricks that can give your home a transform

During the summer, all the pollen in the air can coat your windows leaving them dirty and cloudy. Here, are some tips to keep

Use our easy DIY method to remove stains from vinyl siding. All you need is a little patience, the right products, and our ti

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Service Areas

Replacement Windows, Siding, Doors & Roofing

Serving Illinois, Iowa, Wisconsin, Indiana & Michigan

Since 1976, we’ve been dedicated to improving lives, one home at a time. Replacing your windows, siding, doors and roofing is easy with Feldco. From our financing options to energy efficient products for your home, our home improvement company is here to make your exterior home remodeling project a success.

Start Your Project Today. It's Fast & Easy with Feldco.

Simply fill out the form below to get started and a Customer Delight Representative will reach out to you shortly to confirm your project details.

Why Choose Feldco?

Made in the USA

Feldco’s products are proudly made in the USA, with unparalleled craftmanship and care. Built to withstand the harshest Midwestern elements, and made to last.

We're Local

Originally starting as a Chicago window replacement company in 1976, we've expanded to 13 locations across Illinois, Indiana, Iowa, Michigan and Wisconsin within a large service area.

Warranty

Feldco stands behind its products. We work hard to provide our customers with unsurpassed customer service, a quality product at a great value, with the industry’s strongest warranties.

Value

When you choose our products, you’re not just making a purchase; you’re making an investment in durability and reliability. Our commitment to value means you get more for your money.

Replacement Windows, Siding, Doors & Roofing

Serving Illinois, Iowa, Wisconsin, Indiana & Michigan

45+

Years Of Service

1,500,000+

Windows Installed

1,000,000+

Sq. ft. of Siding Installed

100,000+

Doors Installed

See What Our Customers Are Saying Online

How Can We Help Renew Your Home?

ADDITIONAL HOME RENEWAL SERVICES

GUTTERS

Replace your old gutters with new aluminum gutters.

SOFFIT & FASCIA

Replace your old soffit when brand new, heavy duty soffit and fascia.

GARAGE DOORS

Our sister company, Danley's, offers garage door replacement in Chicagoland.

We Make It Easy to Renew Your Home.

Contact Us

Simply give us a call at 866-4FELDCO or fill out our online form.

In-Home Consultation

A Feldco Product Specialist will meet with you to determine your home renewal project needs and details.

Installation

A professional team from Feldco will complete your project and ensure that you're delighted from start to finish!

Let's Get Social!

Rewarding Careers at Feldco

Learn More from the Home Renewal Experts

Feldco Named Top Workplace for the 7th Time

Feldco Windows, Siding, Doors and Roofing is named a top workplace for the 7th time. Come find out why!

How to Remove Yellow Stains on My Vinyl Siding

Despite being a low maintenance material, there will be times that your siding requires cleaning. Here's how to remove those

Why Is My Roof Popping?

Roof popping is a common sound that forces a homeowner to take notice of this particular area. Here's why your roof may be po

Signs It's Time to Replace Your Windows

Is it time to replace your windows? Discover the key indicators and benefits of vinyl window replacement in this comprehensiv

10 Best Window Styles for Amazing Views

Which one is right for your home? Are you trying to maximize a view in a certain part of your house? Here are the 10 best win

How Can Vertical Siding Transform Your Home?

Vertical siding has many benefits that are appealing to so many homeowners. Now’s your chance to transform your home and impr

How to Repair an Entry Door Frame

Your entry door goes through deterioration and damage. Mostly, the damage is done to the frame but the entry door frame repai

Benefits of a Fixed Window

Many homeowners think they need operable windows in all room of their home. However, there are many benefits to fixed windows

Steel vs. Fiberglass Door: Which is Best for Your Home?

When it comes to choosing the best type of entry door for your home, you'll want to consider either a steel or fiberglass doo

The Difference Between Direct and Indirect Sunlight

Houseplant owners will tell you the first thing if you want to keep your plants alive, you must know the difference between d

What Type of Storm Door is Best for Your Home?

Find out what type of storm door is best for your home by reading this very helpful article that goes over all the many types

How to Winterize a Sliding Patio Door

Winter is coming and you're thinking about saving money. It all starts with your sliding patio door. Check out how to winteri

How to Make My Home Less Dark and Gloomy

Want to know the most surefire way to brighten up your home? Here’s a few tips and tricks that can give your home a transform

Best Ways to Keep Pollen Off Your Windows

During the summer, all the pollen in the air can coat your windows leaving them dirty and cloudy. Here, are some tips to keep

How to Remove Wood Stain from Vinyl Siding

Use our easy DIY method to remove stains from vinyl siding. All you need is a little patience, the right products, and our ti

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