Our Team

Your Local Building and Remodeling Company… since 2003.

At Cornerstone Builders, our mission is to transform your space to reflect your vision and your lifestyle.

Located in Beaverton, Oregon, we work extensively throughout the greater Portland area.

Our passion for design and expertise in cutting-edge construction methods distinguish us in our field… and assure outstanding results for our clients. Read more about our Team.

Count on Cornerstone Builders for…

Whether you’re ready to build a guest house or dream home or want to add beauty and functionality to your existing home or office space, Cornerstone Builders is your ideal partner.

We offer complete project management, design, building, and renovation services for any size project.

Annual National Association of the Remodeling Industry Winner

NARI Pacific Northwest is part of the National Association of the Remodeling Industry and Oregon’s only trade association focused solely on residential remodeling. Its annual Outstanding Remodeling Achievement Awards Program is one of the state’s highest honors for design/build firms such as ourselves. We are honored to have been recognized by our peers in the remodeling industry each year!

Regional Awards:

  • Residential Kitchen $30,000-$60,000 Winner
  • Residential Kitchen $60,001-$100,000 Winner
  • Residential Bathroom Under $25,000 Winner
  • Residential Bathroom $25,000-$50,000 Winner
  • Residential Bathroom $50,001-$75,000 Winner
  • Residential Interior Under $75,000 Winner
  • Residential Interior Over $150,000 Winner
  • Residential Addition Under $100,000 Winner
  • Residential Interior $100,000-$250,000 Winner
  • Residential Inter. Element Under $30,00 Winner
  • Residential Exterior Under $30,000 Winner
  • Commercial Interior Winner
  • Universal Bath Design Winner

Local Awards:

  • Residential Kitchen $30,000-$60,000 Winner
  • Residential Kitchen Under $40,000 Winner
  • Residential Bath Under $30,000 Winner
  • Residential Bath Under $25,000 Winner
  • Residential Bath $25,000-$50,000 Winner
  • Residential Bathroom Under $40,000  Winner
  • Residential Bathroom $50,000-$75,000 Winner
  • Residential Interior Under $75,000 Winner
  • Residential Interior $100,000-$250,000 Winner
  • Residential Interior Over $150,000 Winner
  • Residential Exterior Under $30,000 Winner
  • Commercial Interior Winner
  • Universal Bath Design Winner

Oregon Home Structure + Style Awards Winner

The best in building, remodeling, and design awards are presented annually to the most outstanding Oregon projects. They only recognize the best of the best, and we are proud to be one of them!

  • Kitchen Remodel Under $75,000 Winner
  • Bathroom Remodel $25,000-$50,000 Winner
  • Bathroom Remodel Under $50,000 Winner

Meet the Cornerstone Team

Allen Tankersley

Cornerstone’s president, Allen, is a licensed contractor, NARI Certified Remodeler, Certified Kitchen and Bathroom Remodeler, Cornerstone’s lead designer, and a licensed electrician.

“The drive to build and remodel homes began as a child, where I grew up around the remodeling industry. I became an apprentice at a young age and specialized in kitchen and bathroom remodeling and complete home renovations. This developed into a passion that followed me into my adult years. Soon after completing college, I decided to expand my expertise and began a five-year apprenticeship with Local 48 IBEW.

After becoming a licensed journeyman electrician, I redirected myself back toward building and remodeling homes. It was in May of 2003 that I founded Cornerstone Builders. Being a builder is more than a profession; it is a calling. There are a lot of behind the scene hours that go into a job from start to finish. The construction period often requires some adaptation from our clients during the transformation process. We have a direct effect on people’s lives and their homes. There is a lot of pride and joy that comes from seeing the end results and the excitement from our clients!”

Allen has served on the NARI Pacific Northwest Board of Directors since 2011 and has been board secretary for a total of 10 years. He has also served on the Board of Directors and Project Committee for ReFIT for five years. ReFIT provides no-cost home modifications for physically challenged people. Cornerstone has also donated labor and materials, completed a wheelchair ramp, and supported many other projects for ReFIT clients.

One of the most important things to Allen is spending quality time with his wife and their three active children. He is a gym devotee and dedicates time to maintaining his health. Being from Oregon, he loves spending time in the mountains and is drawn to outdoor activities.

Cornerstone Bre Headshot 2020

Bre Reynolds

Cornerstone’s project manager, Bre, adds an extra level of professionalism, organization, and support to the team. Working side by side with Allen, she stays busy both in the office and on job sites.

As a native of the Pacific Northwest, Bre loves the outdoors. Camping, hiking, and kayaking are just a few of the adventures she loves sharing with her husband and her two energetic children. She is also an avid reader and fitness enthusiast. 

Ellie Crumal – Designer

As a Designer, Ellie understands the importance of guiding our clients through the design process in a way that fully meets their needs and desires. She enjoys helping people create a space that makes them feel good and creates positive energy.

Ellie is an Oregon native who enjoys spending time with her husband and children. She loves to read and is a gifted visual artist. Her favorite medium is drawing with graphite pencils. Ellie loves collage and exploring new mediums, which are currently oil and cold wax.

Kirsten Tankersley

Kirsten has been working behind the scenes since 2004. She assists with administrative responsibilities and keeps the company’s financial side organized.

She is a native Oregonian and earned a B.S. from Portland State University in 2002. Years later, she continued her studies in Amma Therapy, where she gained a passion for Chinese medicine. Kirsten is married and has three children who keep her on the go. She enjoys going to the gym, reading, working in the yard, traveling, and spending time outdoors.

We are…

Our company has been fortunate enough to work with Cornerstone Builders for the last four years. As an Electrical Contractor that has worked with many General Contractors over the last 17 years of business, Cornerstone Builders are one of the most professional companies we’ve worked with and far surpass the industry standard. We can always count on great scheduling, professional business conduct, safe & clean work environments, positive attitudes and happy customers. Our crew always looks forward to working on their projects and we give them our highest recommendation.”

– Stumptown

Allen, did a exceptional job. Cornerstone did the project on time on budget. I thought the crew were professional and skilled workers. They cleaned up after each days work. I would highly recommend them.”

– Sue

Need a recommendation for a great builder in the Portland/Beaverton area and beyond? Every home I photograph for Cornerstone is meticulously finished and built. I have been working with Cornerstone now for a number of years and have to say I’ve seen their work just blossom from a simple to a more designed look. And everyone at Cornerstone is super friendly. I know because I’ve been taking pictures of their jobs as well as group portraits for Christmas and for their website. And I know too from talking with their clients that they’re happy clients. Sophisticated, timeless and well built. Doesn’t get much better than that. They get my recommendation!”

– Frank D.
Beaverton remodeling contractors Cornerstone Builders