Jonathan was great, very professional, courteous and efficient!
CD
Christian Dionne
Oct 1, 2025
5.0
Excellent sales and installation. The crew of 4 from Maine were awesome hats off to them. Very friendly and professional.
CM
Christopher Mastrangelo
Jul 8, 2025
5.0
Austin came in time installed the 6 windows plus gave us options on how he could trim them out, he did a great job with everything especially cleaning up at the end
JS
Jim S
Jun 17, 2025
5.0
The entire experience was great! The salesman was not pushy, the man that came to measure all the windows was great, the customer service to set appointments was great and the installation crew was awesome!
LE
Lucy Evans
Jun 17, 2025
5.0
One of the best companies to work with. Receptionists were helpful and efficient. Austin did a great job fixing the problem. He was here when he said he would and did the job quickly. Very reliable company.
Frequently Asked Questions About Window World of Southern Maine
What types of Payment methods & Financing do you offer?
We offer a variety of payment methods and financing options (subject to approved credit) depending on promotional period. Please contact us for more information regarding available options.
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?
Generally, replacement windows can be installed within 4-8 weeks from the date that the final measurements are taken. The type of window being installed and type being removed helps determine the amount of time needed to complete the job. On average each window takes about 30-60 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?
Window World replacement windows come with an all-inclusive limited lifetime warranty. Contact us 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 they arrive 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. As a first step, we recommend you visit the Support page of our website for troubleshooting tips and advice on correcting common issues.
What types of replacement windows do you offer in Portland, ME?
Window World of Southern Maine specializes in a wide selection of vinyl replacement windows, including double-hung, casement, bay, bow, and custom-shaped windows. All products are designed for energy efficiency and durability, and are made in the USA.
Are your replacement windows energy efficient?
Yes, we offer Energy Star-certified windows with features like Low-E glass and argon gas insulation. These energy-efficient replacement windows can help lower your energy bills by up to 12% and improve your home's comfort year-round.
Why choose Window World as the best window installation company in Portland?
Window World of Southern Maine is locally owned and nationally backed, providing professional installation, comprehensive warranties, and guaranteed low prices. Our team is known for quality workmanship and excellent customer service, as reflected in our positive local reviews.
Do you install vinyl siding in Portland and surrounding areas?
Yes, we provide professional vinyl siding installation throughout Portland and the surrounding counties. Our siding options enhance curb appeal, improve energy efficiency, and offer long-lasting protection against the elements.
What entry door installation services do you provide?
We install a variety of entry doors, including front doors, patio sliders, and storm doors. All doors are designed for security, energy efficiency, and style, and are installed by our trained professionals.
How much do replacement windows or siding cost, and what payment options are available?
Pricing varies based on window style, size, and project scope. We are known for offering some of the most competitive prices in the region. Financing options are available with approved credit through the Window World Credit Card Program, making it easier to start your home improvement project.
How long will the installation crews be at my home for the installation?
Window World can install your window and door project in as little as one day. Siding projects typically take a little longer.
Can I customize my replacement windows or doors?
Absolutely. We offer a wide range of customization options for windows and doors, including styles, colors, hardware, and finishes. Our Visualizer tool allows you to preview different options on your own home before making a decision.
What warranties or guarantees do you offer on your products and services?
All Window World products are accompanied by comprehensive warranties, encompassing a limited lifetime warranty on windows and doors, including glass breakage. This warranty covers both materials and installation defects, ensuring peace of mind for years to come. Furthermore, our warranties are transferable should you choose to sell your home, allowing the new homeowner to benefit from the same level of protection.
What post-installation support or maintenance services are available?
Our customer support team is available to assist with any questions after installation. We provide guidance on maintenance and care, and our warranty ensures coverage for eligible issues. For additional support, you can contact us directly or visit our support page for helpful resources.
What types of payment methods and financing options are available at Window World of Southern Maine?
Window World of Southern Maine offers various payment methods including cash, check, and financing options subject to approved credit and promotional periods. Contact them for current financing details.
Are replacement windows installed from the inside or outside?
Most replacement windows are installed from the outside, but the installation expert will assess your home on installation day to determine the best approach, which may sometimes be from the inside.
Does Window World of Southern Maine install replacement windows year-round and will I lose heat or cooling during installation?
Yes, they install windows year-round. Installations typically take one day per window, minimizing heat or cooling loss. Energy savings from new windows compensate for any incremental energy costs during installation.
How should I prepare my house for window replacement?
Remove curtains, blinds, and window treatments. Turn off and remove security sensors with your security company’s help. Provide a clear path to windows by moving obstacles, and remove nearby wall decorations to prevent damage.
What is the typical timeline for window replacements and installation duration?
Replacement windows are usually installed within 4-8 weeks after final measurements. Each window installation takes about 30-60 minutes, with additional time for trim and cleanup, typically completing the job in one day.
What warranty does Window World of Southern Maine provide for their windows?
They offer an all-inclusive limited lifetime warranty on windows, covering materials and installation defects. The warranty is transferable to new homeowners if you sell your home.
What happens to the old windows after installation?
Old windows are removed and properly disposed of after installation. If you want to keep the old or storm windows, inform the installation crew upon their arrival.
What types of replacement windows does Window World of Southern Maine offer?
They offer a wide selection of vinyl replacement windows, including double-hung, casement, bay, bow, and custom shapes, all designed for energy efficiency and durability and made in the USA.
How can nearby transit options like the Regional Transportation Program help customers access Window World?
Customers can use the nearby Regional Transportation Program for travel, making it convenient to reach Window World of Southern Maine at 2 Karen Drive, Westbrook, ME, especially if relying on public transportation.
What other businesses are near Window World that customers might find useful?
Nearby are services like Casella Pine Tree Westbrook for waste management, 320ink for printing and fabric needs, and PGW Auto Glass for automotive glass services, which customers might find useful before or after visiting Window World.
Are there fitness or community services near Window World that locals can combine with their visit?
Yes, Workout Fitness Store and Girls on the Run - Maine are nearby, allowing customers to engage in wellness or community activities alongside their home improvement projects.