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Renewal by Andersen El Cajon Replacement Windows & Patio Door Installation

As El Cajon, CA’s source for window replacement and patio doors, the Renewal by Andersen window company serves the area with lasting, custom home improvements backed by a hassle-free experience.

How Can We Improve Your Home Improvement?

It’s a well-established fact of life that home improvement can be stressful, hectic, disorganized, or overly time-consuming. But it doesn’t have to be!

Renewal by Andersen has been redefining the window industry for over 100 years. As a result, we offer the most seamless full-service window installation process available to keep disruptions to a minimum. We believe homeowners deserve to enjoy their custom window or patio door as soon as possible—so our team of window experts—from design consultants to certified master installers—are committed to getting it right.

Learn more about our products and processes below, then experience the Renewal by Andersen difference for yourself in El Cajon!

4-Step Full-Service Window Replacement


Design Consultation

Design Consultation

Renewal by Andersen design consultants are window experts, and can help you choose all the right features to match your home and your life.




Project technicians then measure and plan for your window installation before ordering it to be produced with one-company accountability.




Our Renewal by Andersen exclusive certified master installers are experienced window contractors dedicating to installing, insulating, and sealing your window to last for years to come.


Ongoing<br />
Customer Care

Customer Care

Contact a customer care specialist anytime for questions or concerns, even after your project is complete.

Why Choose Renewal by Andersen?

Our replacement windows and patio doors are made with superior materials and designed, manufactured, and installed by expert window contractors. Read about the Renewal by Andersen difference below!

At Renewal by Andersen, our specialists are there for you at every step. Start with a consultation with a window design expert, then you’ll experience a seamless ordering and installation process. That’s because every stage of the window replacement process is owned and overseen by a dedicated specialist.

To us, one-company accountability means no surprises, no third parties, and clear communication from start to finish.

We know that starting any kind of home improvement can be overwhelming. That’s why our process begins with answering every one of your questions—from design, to energy efficiency, to financing and more! Our goal is to ensure you’re making the best and most informed decision for you and your home, so we take the time to help you create a plan.

All Renewal by Andersen products are installed exclusively by certified master installers. These window contractors understand every component of a Renewal by Andersen window or patio door and are dedicated to securing them in your home for years to come. They also follow a well-defined process which includes thorough preparation of the work area, timely installation, and even removal of your old windows! See our team in action when you call to get started on your El Cajon home today.

From design to installation and beyond, we’ve redefined the replacement window and patio door processes. With a dedicated window specialist at every step, we’ve ensured a seamless, hassle-free process while also making sure your home improvement looks and functions exactly as it should—every time!

In addition to an exclusive process, Renewal by Andersen serves El Cajon, CA homeowners with exclusive, energy efficient, custom, and lasting window products. Our windows are made with Fibrex® window frames which combine the benefits of both wooden and vinyl windows. This is done by an extrusion process using 40% reclaimed wood and composite materials to create a durable, weatherproof seal.

Learn more about Fibrex® frames then schedule your in-home consultation to see what they can do with your home.

Can You Afford to Skip Out on Professional Installation?

Window and patio door installation prices vary depending on your home and lifestyle needs. Our specialists can determine these with a thorough in-home consultation and chart a pricing a project plan to move forward. Some considerations include:

  • Installation requirements
  • Window type
  • Shape and Size
  • Hardware and color options

Remember, investing in a quality, warranty-backed window replacement now means not having to replace them again in a few years. Lasting quality windows also provide better energy efficiency, wider views, and enhanced style options.

Contact Renewal by Andersen El Cajon today to learn more about our superior materials.

20 Year Durability Study

When we say our windows are built to last, we mean it. To test their quality, we pulled 20-year old Renewal by Andersen windows out of their openings to inspect them. These replacement windows had weathered two decades of every type of weather in a variable climate. They had been used often in all seasons, and hadn’t bent, bowed, faded, chipped or broken down over time.

That’s the kind of lasting durability you can expect from every custom window designed and installed by our window contractors. See the Renewal by Andersen difference for yourself!

Window Replacement Warranty

We’re so confident our windows will stand up to the test of time that we back each one with an unbeatable 20-year warranty. That means you can expect unparalleled performance during the entire life of your windows, and if you do have any questions or concerns, you can easily get in touch with a customer care team that’s truly dedicated to your satisfaction. Ask your design consultant for full details, and start enjoying lasting peace-of-mind today.

French and Sliding Glass Doors
in El Cajon, CA

In addition to windows, we also serve the area with lasting, custom patio doors. Choose from sliding glass or hinged styles, then add hardware, colors, window, and grille selections to perfectly match or refresh your home. From the inside out, any style door is guaranteed to increase the value of your room with energy efficient, clear views. Read about the distinct benefits of each patio door style.

Learn More


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.
Rating: 5

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.
Rating: 5

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.
Rating: 5

Unrivaled Home Style

Renewal by Andersen windows and patio doors are custom-designed to be the perfect complement to any style house! Each functional or stationary window offers unique options in color, hardware, and grilles to match an existing window or create a more modern look. Either way, our windows and patio doors provide an enhanced view—with narrower frames, clearer double pane glass, and Fibrex® frame colors that won’t chip, crack, peel, or wear down.

Unlike vinyl windows, they’ll also maintain their look and function to perform for years just as well as the day they were installed. See how our home windows improve a variety of houses below.

Serving El Cajon, CA and the Surrounding Areas

Renewal by Andersen El Cajon, CA is now serving your area with beautifully energy efficient replacement windows and patio doors. We’re committed to simplifying the process from start to finish, so you can start enjoying your new home improvement sooner than you think. Call or email us to schedule your in-home consultation today, and don’t forget to ask about our special offers.

We Serve El Cajon and Surrounding Regions

El Cajon
La Mesa
National City
Rancho San Diego