“A thing of beauty is a joy forever.”

John Keats

Our goal is to create a refined environment that reflects your personality and lifestyle; one that will bring you joy for years to come. With our organized and expedient implementation of all phases of construction, you can literally turn the key and enjoy your new home.

Creativity, dependability, and exceptional service

Founded in 1984, Ontario Design Company continues to serve clients with exceptional style, creativity and dependability.  Our design principals manage each project from start to finish.  We take pride in this unique arrangement as it allows us to provide an unrivaled, dedicated and effortless experience for our clients.  Client satisfaction and trust is our top priority and we work tirelessly to make this a reality. We are passionate about design.  We also consider our relationships to be our greatest treasure.  We can’t wait to get to know you!


Brady Preston

Principal Designer

Heidi Preston


Doug Preston

Owner / Designer

Wendy Preston



Ontario Design was able to take our vision from our old tired place and turn it into a cool and relaxing environment...This renovation went way beyond our expectations and we are ecstatic about it.

Michele and Cole EllisDeer Valley Residence

It was a pleasure working with Ontario Design. The most important thing I can say about them is “they listen!”...It was a complicated project with lots of pieces, but they pulled it together beautifully.

Alan & Debbie GoldEmpire Pass Residence

They worked easily with our builder and together created a finished product that far exceeded our expectations. We grew to trust their opinions and judgment.

SherriRedHawk Residence

The items that they had made for us exceeded our expectations. I think the whole project exceeded our expectations. They helped us to make a home that we can enjoy and feel comfortable in for many years to come.

Mike & Barbara CacessePromontory Residence