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We work with the top manufacturers in the industry including Andersen, Velux, Thermatru and many more! We offer a wide selection of high quality residential doors, windows and skylights, commercial hollow metal doors and frames, architectural hardware, and millwork. No matter the size, the products and services were delivered promptly and professionally.

There are other options out there but non that offer a better value. I have been working with Loranger Door and Window for over 15 years. Their knowledge of the products and their commitment to customer service is second to none.
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Loranger Door & Window is a locally owned family business founded in 1977. Our experience is well-known for offering quality products to contractors, remodelers and homeowners at competitive prices. As an Andersen Excellence Dealer, we provide proven Quality and Service. Loranger Door & Window is committed to supplying our customers with products that will stand the test of time.
At Loranger Door, we provide top-tier window and door installations in South Portland, Maine. If you want to make a difference in people's lives and their homes or buildings, take a look through our open positions. To apply, please forward your resume to sales@lorangerdoor.com and include the name of the position you're applying for in the email's subject line.
Catch a glimpse of the beautiful views surrounding your home and create an atmosphere that all can enjoy. Get in touch with our team at Loranger Door & Window for your next window installation project. Our team is proud to offer the best installation services and high-quality products available in Southern Maine.
We offer a wide range of design choices from our Key Manufacturers, such as Therma Tru and Jeld Wen entry doors to Andersen Patio doors that help you achieve the perfect look for your home. Our interior door selection from Simpson, Jeld Wen and Masonite can enhance your home's appearance and compliment your decor.
Reviews (5)
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Rory Benjamin
Feb 01, 2020
Critical: Quality I have the unfortunate displeasure of owning a home with Loranger windows. The windows were installed in 2002 and I am appalled at the lack of quality. All of them are drafty and of low quality, to the point where half of the windows do not even open more than a couple of inches. Avoid this company and its windows at all costs.
Martha HurdCall
Nov 01, 2018
Prices are higher than big box stores; they say their quality for the same product is better, but I don't see it. Door closers would not work right and they were horrible to deal with - no customer service after the sale. Had to contact the manufacturer directly for any satisfaction.
Chris Kelley
Jun 24, 2018
Fran Loranger and his team are a pleasure to work with. He visited the job site numerous times to make sure we had no issues.
Corey MacDonald
Mar 13, 2018
The best. Could not be more knowledgeable, straightforward, honest and helpful.
Karin Geiger
Feb 14, 2018
I purchased several Andersen doors from Loranger. All of them were defective and it takes months to get any service - if you get any service at all. I am still waiting for service technicians to visit my home and take care of the issues. These are brand new doors! They don't slide correctly, they are bent and don't fit in their frames. It is winter and I have extremely cold air pouring into the house.

You can see air around some, they don't open and close well, and are basically useless! If this were spring or summer, it would be bad - but during winter these doors make my home extremely uncomfortable and the rooms unlivable. I had a new large Andersen window also installed a year ago, and it too came in defective. It tooj over a year to fix that issue. Never, ever purchase Andersen products. Terrible quality - terrible service - and Loranger doesn't do anything to help the situation.