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Advantages of Renewal by Andersen® Exclusive Products

Renewal by Andersen® offers the best custom replacement windows on the market, made possible by exclusive features and technologies. Here are some of the advantages of our exclusive products.

Strength and Durability

Our window frames are made of Fibrex® material, a composite developed by our parent company, Andersen® Corporation. The combination of wood fibers and polymer gives it unique properties: it’s twice as strong as vinyl and is as durable as well-maintained wood. It also expands and contracts evenly when exposed to temperature extremes, where other materials would warp or sag. Our Fibrex frames can be counted on to stay strong, durable and stable regardless of climate.

Energy Efficiency

Renewal by Andersen replacement windows are counted among the top-rated energy-efficient products on the market, thanks to the combination of our Fibrex material frames and High Performance™ Low-E4® glass. Our replacement windows assist in reducing heat leaks, which help maintain consistent indoor temperatures. This leads to less cooling and heating demands placed on your HVAC system, resulting in significant energy savings. All Renewal by Andersen replacement windows are certified by ENERGY STAR®.


The inherent strength of our Fibrex material lets us build slim and narrow frames without sacrificing structural integrity. Narrower frames mean bigger viewing areas without resizing the openings on the wall. It also means more natural light, and, thanks to our exclusive High Performance Low-E4 glass, you won’t have to worry about the effects of ultraviolet (UV) rays or your indoor spaces heating up.

As an extruded material, Fibrex can be crafted into virtually any shape that your project requires. Colors are selected during consultation and are applied as the windows are crafted, resulting in truly custom windows that fit your style and taste.

Low Maintenance

Renewal by Andersen replacement windows are easy to maintain. No need to scrape and repaint every few years. Also, our finishes are warranted not to flake, rust, blister, peel, crack, pit or corrode. Like vinyl windows, all it takes to clean our replacement windows is water from a garden hose. Cleaning tight crevices will only require water with dish detergent and a soft brush. Depending on the window style, our window sashes can be tilted, removed or reached around for easy cleaning. They also make window cleaning safe as you don’t have to climb upper-story windows just to clean their exterior sides.

Renewal by Andersen of San Francisco is your leading provider of window replacement services. Give us a call at (510) 263-3210. or fill out our contact form. We serve customers in San Francisco and nearby areas.


"I wished to have this done long time ago, had I known the benefits of these products provided by Renewal by Andersen"

June 26

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