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Welcome to ClearChoice Windows and Doors

Thank you for considering ClearChoice Windows and Doors for your home’s window replacement project, or for installing new doors. We are proud to serve our neighbors home improvement needs honestly, fairly and with the promise of lasting value.

My name is JR Pentolino and I am a second generation licensed glazing contractor. As a Christian family, my wife Natalie and I run our company based on a foundation of biblical principles, showing deep care and commitment for our valued clients every day.

We believe there are three things that set ClearChoice Windows and Doors apart from the competition:

  • Superior customer service: We are a family-owned and operated business that truly cares about our employees and customers.
  • Top quality materials: We use only the finest American-made replacement windows in Riverside CA from reputable manufacturers like Simonton.
  • Creative solutions: We can help with challenging window replacement in Ontario CA and surrounding areas, where many other companies cannot, thanks to highly trained professionals and a wide selection of windows and doors that give the homeowner several design choices.

I got my start in the window industry in the late 1990s. Since then, I have seen vast improvements in the quality of windows, especially when it comes to energy efficient glass that can help homeowners save money.

ClearChoice Windows and Doors was built on the premise of hard work, dedication, honest pricing and superior craftsmanship. As a Simonton Premier Dealer, we want your home to enjoy a long lifespan out of your doors and replacement windows. That’s why we install only the highest quality products that will meet and exceed your family’s needs through the years.

From vinyl, fiberglass and wood windows, to sliding and entry doors, we offer a variety of products for your home. We use our own installers to ensure quality craftsmanship, and treat every customers and employees like family. ClearChoice Windows and Doors: small enough to care yet large enough to provide excellent service!

Call for No-Obligation, FREE Estimate on Windows and Doors

We would be happy to explain your options to you and help you find a window package tailored to meet your personal needs. Schedule your informative consultation appointment at 909-342-6299. We are located at 291 W. Allen Avenue in San Dimas CA, open Monday through Friday from 8 a.m. to 5 p.m. We look forward to hearing from you regarding window replacement in Ontario CA and surrounding communities.

Top 5 Reasons to Choose ClearChoice Windows


100% American Made Products

All of our quality windows and doors are proudly made right here in the USA.


JR (the owner) is highly involved in every project

Nobody cares for their customers like the owner. That’s why JR is involved in every project.


Family Owned
& Operated

You just can’t beat the level of service and craftsmanship you get from a local small business.


No Subcontracting

We use our own installation crews. Our employees care about the company, and work hard to please the most discriminating homeowners.


Great ratings & reviews

Check us out on Angie’s List and Yelp. We have great reviews, and will work hard to make you a raving fan too.

What Our Customers Have to Say

The windows are beautiful and have really changed the look of our home.  From first meeting Billy to the end with the installers we were very pleased.  If you are looking for windows this is company to talk to.

Angela B. Garden Grove

The wife and I were more than happy with the outcome and would not hesitate for a second to recommend them to anybody and everybody.

Raul B. Garden Grove

We hired ClearChoice to replace all 24 windows, a sliding glass door and an entry door and all of the interior doors. Everything turned out perfectly. The installers showed up on time, and got right to work. And the work was flawless.

Kristen W. Rancho Cucamonga

The difference in the house is amazing, with no noise and temperature stay the same and it is easier on the A/C to maintain temps. We are happy with the whole experience.  Thank You Clear Choice!

Bryan B. Whittier

Marco Bugarin, the lead installer, is a perfectionist! He has a team that seems to know exactly what he needs without him saying a word! Everything was completed in two days, cleaned up, and perfect!

Dolly F. China Lake


Daniel C. Glendora

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