Are Your Windows Old, Rotting, and Leaky? NEXT Fiberglass Windows Stop Extreme Weather and Last Up to 50 Years

When you need a window and door expert you can trust, we’re right Next Door.

Are Your Windows Old, Rotting, and Leaky? NEXT Fiberglass Windows Stop Extreme Weather and Last Up to 50 Years

When you need a window and door expert you can trust, we’re right Next Door.

The Problem

Your vinyl and wood windows don’t last.

Vinyl Windows

Expand and contract
Warp, crack, and leak
Yellow and fade
Fail in extreme weather

Wood Windows

Rot, crack, and split
Mold and mildew damage
Insect infestation
Maintenance required

The solution

Fiberglass Windows Last up to 50 Years

Thinner frames for bigger views
Most durable windows on the market
Better than 99% of window replacement options
8x stronger than vinyl for true longevity
Stays snug and tight
Better energy efficiency

Why Choose Next Door & Window

Over 24 Years of Experience

With more than two decades in the industry, we bring proven expertise and dependable service to every window and door project.

Dedicated Team of 80+ Professionals

Our team of over 80 window and door specialists is available six days a week, ready to assist you with prompt, reliable service when you need it most.

Certified Installers

Every installation is completed by trained, certified professionals to ensure precision, performance, and long-lasting results.

Top-Quality Products

We offer high-quality windows and doors designed for durability, style, energy efficiency, and lasting value.

what we do

Upgrade Your Windows & Doors

Professional Service

From the first consultation to final installation, our team delivers expert guidance and exceptional service. We treat your home like our own—arriving on time, communicating clearly, and ensuring every detail exceeds expectations.

Highest Quality Materials

We partner with top-tier brands like Marvin, Infinity from Marvin and ProVia to offer premium fiberglass windows and doors that are built to perform—and built to last. Energy efficiency, durability, and timeless style come standard.

Lifetime Warranty

Your investment is protected for the long haul. Our products come with comprehensive lifetime warranties, giving you peace of mind that your new windows and doors will stand the test of time.

who we are

For Over 20 Years, NEXT Has Been Your Trusted, Local, Family-Owned Window & Door Replacement Company

We’re a local, family-owned company that always puts the customer first. Our goal is to be a trusted advisor who guides you through the process. We help homeowners find the perfect window and door solutions. And our experienced service technicians are there when you need them.

Step-By-Step

Our Hassle Free Process

STEP 1

Personal Consultation

Book a free in-home or virtual appointment with a Design & Energy Expert to discuss your vision, explore styles, and choose the ideal windows or doors for your home. We’ll provide an accurate quote and share financing options, so you know what to expect in terms of cost.

STEP 2

Expert Planning

We take accurate measurements and finalize your custom order. Our team handles all necessary documentation and walks you through what to expect before installation day.

STEP 3

Seamless Installation

Our factory-trained, certified installers arrive ready to work with care and precision. We minimize disruptions to your home and thoroughly clean up when the job is done.

STEP 4

Post-Install Support

Enjoy your new windows and doors with confidence. We will follow up to ensure your satisfaction and remain available for any future questions or service requests.

Book Now

Schedule a Free Consultation

in home consultation appointments available in the next 7 days

our specialties

Window & Door Replacement Services by NEXT Door & Window

Boosting Curb Appeal Since 2002

Specializing in Fiberglass Windows

Tired of warped frames and foggy glass? We install high-performance windows made from Ultrex® fiberglass, which is 8x stronger than vinyl and designed for serious longevity. With narrow frames and wide glass space, you get more natural light and better views with low-maintenance upkeep.

Stronger materials. Bigger views. Less maintenance.

INSTALLING THE BEST DOORS ON THE MARKET

Say goodbye to drafty, outdated doors that compromise your comfort and security. NEXT installs premium entry doors from trusted brands like ProVia and Albany — chosen for their energy efficiency, beauty, and performance. We help you find a door that elevates your curb appeal and keeps your home secure.

A better door starts with a better fit.

Get the Windows & Doors Your Home Deserves

Our Products

Make a Statement

Showroom-Worthy Windows & Doors

Windows

SPECIALTY SHAPE

Picture

Corner

Sliding

Double Hung

Casement

Bow

Bay

Awning

Doors

Storm Doors

Bi-Fold (Exterior)

Sliding French (Exterior)

Sliding Patio (Exterior)

Inswing French (Exterior)

Patio Doors

Entry & Front

See the Difference

Before and After

Outdated windows and doors diminish your home’s appearance, comfort, and value. Scroll through our before-and-after gallery to see how real customers upgraded their homes with custom-fit solutions from NEXT.

reviews

Why Your Neighbors Trust Us

Our satisfied customers say it best and keep coming back. Over 50% of our business comes from referrals and returning customers like you.

Gave us great suggestions on window replacements. We love the picture windows and other suggestions he made. He is very knowledgeable and came to our house during the installation to make sure all was going well and we were happy with the windows and installation.

The installers were very skilled and knowledgeable. In my Family Room, the installer even took it upon himself to level the wood shelf under the window he was installing so the wood framing the window would be even and “look nice“ as he said. He didn’t have to put in that extra effort, but he did…he took great pride in his work.

Next Door & Window worked within my schedule and timelines. They are very professional. And Scott the salesperson inspected the installers work to make sure they were doing what they were supposed to. I have nothing bad to say about them.

Very professional, I enjoyed visiting the showroom and being showed around the shop to see how they prepare the windows for installation, and of course meeting those who run the show!

Next Door & Window is a breeze to work with! The sales rep in Madison is very professional and knowledgeable on the product they carry, while not being so pushy like other companies. Would highly recommend this company to anyone searching for quality doors or windows that want the job done right.

Next Door and Window did an excellent job in the delivery and installation of our new sliding glass patio door. It adds an entirely new dimension to our home. The installer was prompt, efficient, courteous, and meticulous. We couldn't have made a better choice in the product or the company. I highly recommend them.

From the salesman to the installers we have had an excellent experience! We had our house windows and doors replaced in three phases. Each time the professional workmanship was outstanding. By the time they were finished each time, everything was clean and as if the doors and windows were always there.

Frequently Asked Questions

Do You Offer Payment Options?

We offer check, cash and most major credit cards for your convenience. Financing is also an option through NEXT Door & Window.

Does Next Door & Window Have A Showroom Where I Can See The Product?

Yes, we have several showrooms – Please click the link for one near you.

– Burr Ridge
– Naperville
– Arlington Heights
– Madison
– St. Louis

Are You Listed On BBB?

Yes we are an A+ accredited member

Do You Offer Free Estimates?

Yes, we have qualified door and window professionals who will assess your project carefully and offer options that fit your style and budget.

How Long Do I Have To Wait For My New Windows/Door?

Somewhere between 6 to 12 weeks. It will depend on time of year and the product purchased. The sales consultant can best answer this while in the home for the estimate.

Is Vinyl, Fiberglass Or Wood The Best Option For Me?

All three materials may be able to fulfill your needs. NEXT Door & Window is pleased to offer all three options. Our consultant will make the best recommendation based upon your needs, budget & tastes.

How Do I Check Up On Next Door & Window?

Try the Better Business Bureau for starters. Almost 1,500 installations per year and we have maintained an A+ Rating. Also, we have excellent marks & reviews on Angie’s List. Ask the consultant for copies of these.

Do You Have Liability & Worker Comp Insurance?

Yes, we carry full General Liability and Worker Compensation Insurance.

Are You An Angie’s List Member?

Yes, we have won Angie’s List Super Service award for 2025.

Why Do You Offer Several Brands And Materials?

We only carry brands that pass our rigorous inspections and meet our strict warranty requirements. We offer different brands of windows and doors, so we can offer the correct solution for your home.

Will Next Door & Window Stain Or Paint My Windows & Doors Interiors After Install?

Actually, we prefer to “factory finish” even before installation. Everything is installed complete and we even fill nail holes and any touch-ups. Would you order kitchen cabinets unfinished? NEXT Door & Window is confident that this process offers you the best finish system possible. No smells, no mess, etc.

Do I Need Custom Sized Windows Or Doors?

Many lines are available in both standard & custom. The consultant will ensure to propose the very best size for your particular opening.

What We Do

Windows

Do you have drafty rooms, rising energy bills, or windows that just won’t open right? Our replacement windows are crafted with ultra-durable Ultrex® fiberglass—built to last and engineered to resist cracking, warping, and fading. Whether you need double-hung, casement, slider, or bay windows, we’ll help you find the perfect style to solve your comfort and efficiency issues.

Entry Doors

Outdated, creaky, or hard-to-open doors aren’t just annoying — they also reduce curb appeal, security, and energy efficiency. We offer stunning steel and fiberglass entry doors, each designed for maximum durability, security, and visual impact. Let us help you make a first impression that’s both beautiful and practical.

Patio Doors

Sticky tracks? Doors that won’t stay shut? We install premium patio doors that open and shut smoothly and insulate like a dream. Choose from modern styles that enhance your indoor-outdoor flow while improving your home’s energy performance and design.