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Portland, Maine’s #1 Source for Replacement Windows

The Most Trusted Window Brand in America

Our products are backed by over 100 years in the window industry. As a full-service window company, we also guarantee quality custom manufacturing, installation, and customer care other companies just can’t match. Schedule an in-home consultation today for your Portland ME home to experience our one-company accountability for yourself!

Our 4 Step Process

1. Consultation

Our design consultants listen to your needs and create a plan to improve energy efficiency and enhance your home’s beauty.

2. Manufacturing

Project Technicians ensure accuracy and answer any last minute questions before sending in the order for your fully customized windows.

3. Installation

Our Installers treat your home as if it were their own and clean up afterwards.

4. Customer Care

A robust limited warranty is backed by a commitment to making sure your windows function as expected.

Year-Round Home Energy Efficiency

Instantly improve the energy efficiency of your home while also saving global energy!

Our windows are each made with revolutionary Fibrex® material frames and your choice of four double pane glasses to keep your interior cool and comfortable year-round.

Fibrex® material is guaranteed to help your windows retain their strength over time, too. Made with 40% reclaimed wood fiber by weight, it seals in place for unmatched draft and moisture protection. These frames are also warranted against warping or flaking in any weather, so you’ll enjoy years of energy efficient functionality and style.

Learn more about our energy saving practices in this featured video, then get started with a no-cost energy analysis of your Portland ME area home today.

Certified Master Installation

Only Renewal by Andersen can back every window and patio door installation with the quality control of certified master installers. Our professionals are committed to a seamless process every time by staying up-to-date on the most lasting and efficient design and installation methods. Following a comprehensive home design consultation and inspection, certified master installers get to work by:

  • Measurement and remeasurement of the work area to ensure a perfect, energy efficient fit.
  • Preparation of the work area from the inside out to prevent any damage to either floors or walls.
  • Thorough, step-by-step installation, insulation, and sealing to ensure long-term quality.
  • And a functionality check to make sure all functional windows open and close as they should.

See Renewal by Andersen quality installation in action when you call or email us today to schedule an in-home consultation.

Fibrex® Material Vs. Vinyl Windows
Fibrex® material is offered exclusively by Renewal by Andersen and combines the best qualities of wooden and vinyl windows for a superior, long-term seal.
This is accomplished through a signature extrusion process, which combines 40% reclaimed wood fiber by weight with composite polymers.
Fibrex® strength also means you can see more of your Maine scenery with narrow but strong frames and wide panes of energy efficient, dual-pane glass.
In any style, our windows remain functional overtime with frames that won’t bend or expand despite years of unpredictable weather and regular use.
Plus, our frames are completely saturated with your chosen color(s) when designed for your exact window opening, so you’ll never experience peeling or cracking paint.

Renewal by Andersen’s exclusive Fibrex® material truly combines only the best features of wood and vinyl. Learn more about personal and global energy savings with our home windows and installation when you contact Renewal by Andersen Portland, ME today.


I love my new windows, made a HUGE difference in the drafts, keeping wind noise out, and keeping heat in. I also choose a different style and the view is much nicer, easier to open and close

Tonya B.

We are extremely pleased with our large dining room window. The old window was not efficient; letting cold air into the house in the winter as well letting heat from the furnace outside! The installer was very professional, efficient and cleaned everything up nicely. The entire experience from sales to installers through follow-up was a pleasure.

Seth Y.

Replaced 12 "old" draft double hung windows with new double hung windows. Remarkable improvement in maintaining and constant comfortable temperature in the rooms. Great workmen and a great finished job.

Tangelia N.

We couldn't be happier with all aspects of the process (sales & installation). Everything went very smoothly and I was amazed at how clean my house was at the end. The windows are beautiful and I'm sure we'll see major savings in our heating bills this winter.

Jennifer A.

Excellent service. The install started on the date promised and completed within the indicated time frame. I was pleasantly surprised at how clean the installers left the job site. Everyone I dealt with was extremely professional. When it comes time to replace the French doors, I will be using Renewal by Anderson.

Roger F.

The people, product, and installation surpassed all my expectations. Home is noticeably quieter, cooler in the daytime, and each window has a beautiful view as compared to the old aluminum frame.

John H.

Serving Portland Maine and the Surrounding Area

Renewal by Andersen serves Portland, Maine with unbeatable quality replacement window and patio door installation. Get started with an in-home consultation today, then let our area professionals take it from there with a hassle-free experience that’ll have you enjoying your new home improvement sooner than you think. Contact us today!

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