Experience Window World's unrivaled ENERGY STAR replacement windows, doors, vinyl siding, and more. Contact us to schedule your free in-home quote today!
Awesome experience from start to finish. Incredibly prompt, communicative, and honest people. The windows look amazing, and I would absolutely recommend them to anybody!
RS
Rick Schroeder
5 days ago
5.0
Matt exceeded my expectations both in the window installation and replacing siding. My cabin was a mess and I’m so grateful for Matt and his crew. They were definitely worth the cost. I highly recommend them for windows and any other repairs. They went the extra mile to make sure it was repaired properly. I can’t thank them enough.
JJ
Jeremy
Nov 2, 2025
5.0
When a company is willing to come out last minute when a competitor decides to change an install date and comes in cheaper it does not get any better!! Their professional staff from start to finish makes you feel like your vision matters. From start to finish it was an amazing experience. I highly recommend this company and will be working with them in the future
JF
Jon Flaa
Nov 1, 2025
5.0
The Twin Ports area is doing a great job representing the Window World franchise. Matt is knowledgeable, listens to the customer, is honest, and delivers on his promise. We put in an entry door to replace a sliding door that could not take the constant use as a main entry. Matt gave us many options and helped us narrow them down by asking us questions. He was responsive to my communication and delivered a great product on time. I highly recommend working with Matt and Window World here in Duluth. Mastiff not included.
WB
Wendy Bergstedt
Nov 1, 2025
5.0
Some of the things we loved about our experience with Window World:
*the speed in response to our initial request
*the speed in setting up an appointment
*clear and concise information about who they are *worked with our budget
*the work was done MONTHS ahead of schedule
*the kindness, respect, and honesty of all we spoke and met with
*the finished project!
*they left our space as clean as it was before they started
Frequently Asked Questions About Window World Twin Ports Region
What types of payment methods and financing do you offer?
We offer a variety of payment methods and financing options depending on promotional period. Please contact us for more information regarding available options. Financing is subject to credit approval.
Will the replacement windows be installed from the inside or outside?
The majority of our replacement windows are installed from the outside. In some situations it may be necessary to install from the inside. On the day of installation, your installation expert will assess your unique situation and explain the process that will best suit your home.
Do you install replacement windows year-round? If so, will I lose a lot of heat/cooling at the time of installation?
Window World installs replacement windows year-round. An average installation will take only one day. Our crews install one window at a time and are trained to do what they can to minimize heating/cooling loss. The energy savings from your new windows will recover any incremental energy costs incurred during their installation many times over during their lifetime.
How can I prepare my house for my replacement windows?
Please take down curtains, blinds, or any other window treatments. Security sensors should also be removed and turned off by your security company. Please provide our installation expert with a clear path to the window(s) being replaced by moving anything that may be in the way. It is also advisable to remove all wall decorations from the walls close to the windows as they may fall during removal or installation.
How long will it take to get my replacement windows? How much time should I allow for the installation?
Since every window ordered is custom-built to fit your home and design choices, manufacturing times vary. Once delivered, the type of window being installed and the type being removed help determine the amount of time needed to complete the job. On average, each window takes about 30 minutes. Trim work and cleanup will require additional time to complete. An average job will take a single day.
What type of warranty is available for my windows?
All windows and patio doors we sell come with a manufacturer’s lifetime limited warranty and a repair labor guarantee, good for as long as you own your home! Contact us or see our warranties page for more details.
What happens to my old windows?
After installing your new replacement windows we remove all old windows from your property and dispose of them properly. If you wish to keep your old windows or storm windows, please notify the installation crew as soon as it arrives for your installation.
What do I do if there is a problem with the windows?
Most of the issues encountered by our customers are easily corrected and don't necessarily mean that there is a problem with your window. You are always welcome to contact us for help.
What products and services does Window World Twin Ports Region offer?
They offer ENERGY STAR replacement windows, doors, vinyl siding, and more, including window, siding, and door installation services.
What are the business hours and appointment availability?
The business is open Monday through Friday from 9:00 AM to 4:30 PM and is by appointment only on Saturdays. It is closed on Sundays.
How can I schedule a free in-home quote with Window World Twin Ports?
You can contact them via their website or email to schedule your free in-home quote.
What financing and payment options are available?
They accept cash, checks, and offer financing options depending on promotional periods, subject to credit approval. Contact them for current options.
How long does window installation typically take?
On average, each window takes about 30 minutes to install, and an average job is completed in a single day including trim work and cleanup.
Will the replacement windows be installed from the inside or outside?
Most replacement windows are installed from the outside, but installation from the inside may be necessary depending on your home. The installation expert will explain the best method.
What warranty coverage is provided with the windows?
All windows and patio doors come with a manufacturer’s lifetime limited warranty and a repair labor guarantee, valid for as long as you own your home.
What should I do to prepare my home for window installation?
Remove curtains, blinds, and window treatments; disable security sensors with your security company; clear the path to windows being replaced; and remove nearby wall decorations.
Which nearby public transportation options can help me visit Window World Twin Ports Region?
The Duluth Transit Authority bus station is nearby, providing convenient public transportation options to reach the location.
What nearby places can I visit before or after my appointment?
You might enjoy visiting nearby spots like Duluth Cider, a brewery and smoothie juice bar, or Bergey's, a sports bar and pub, for some refreshments.
Are there any nearby services related to home or automotive repairs?
Yes, nearby you can find Safelite AutoGlass for auto glass service and Bill's Muffler & Brake Center for automotive repairs, as well as P&R Plumbing & Heating for home plumbing and HVAC services.