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About M&M Builders

custom decks and arbors los altos hills

What Makes Us Different?


1. I CARE about what I do.

2. I CARE about the customer, what is important to them, their wishes, wants, and how I can combine my ideas and theirs into a great project.

3. I CARE about the process, how we build the project professionally, how we conduct ourselves on the job, and how clean the project is left every night. Our work is a direct reflection of you.

4. I CARE about craftsmanship and the small details that we designed for you and your family's needs. They are not only important to you but to me as well and the sense of pride I get when the job is completed.

5. I CARE when a client has a new, great idea they want to incorporate into a project already in progress. I want to hear it and make it happen.

6. I CARE about the environment and how the materials I use impact it. We don't use old-growth redwood and use synthetic materials whenever possible. All my scrap wood materials are recycled after the job is done.

7. I CARE about people and their lives. You will see me every day with a smile on my face, greeting you and your family. I will be making sure that what we have designed for you is getting implemented correctly and professionally.

8. Lastly, I CARE about building your project the very best I possibly can. I just can not do it any other way, it is as simple as that.

From the business

My name is Mark von Dohren and I started working in construction in 1975. I have worked on everything from framing houses on production crews to custom houses to being a superintendent on high-rise commercial buildings. In my career, I have had some tough but amazing mentors who were old-world craftsmen, and that is how I learned my craft.  In 1984, I started M&M Builders, building decks and arbors. It started small but grew quickly and during that time I hired a young man named Joe Bettencourt. He had very little construction experience but was hired as a laborer. He was a great worker and had such a thirst for knowledge about carpentry and construction that I took him on as my carpenter apprentice. He worked beside me for 6 years and then started running his own crew. I taught him every aspect of construction and during that time he not only became an amazing craftsman, but we bonded, and he is like a son to me. His carpentry skills have even bettered mine and are one of the reasons M&M Builders has a reputation for craftsmanship and quality. Joe has either built or helped build 85% of the 400 pictures you see on After 20 years of working for me, it was time for Joe to get his own license. That is exactly what he did, and went on to create and open Bettencourt Builders. I am now retiring and proud to say that Joe is taking over the business. With Joe, you will get the same great quality we are known for along with excellent personalized service. Joe cares about what he does, and the people he works for, and is a fanatic for perfection.

A bit about M&M Builders

At M&M Builders it is all about our commitment to quality craftsmanship, unique design, and true balance that make our Decks, Arbors, and Backyard Living Spaces stand apart. We are pleased to share with you over 400 pictures of our work and how we can create a special backyard living space uniquely designed for your family's needs. With a multitude of decking and arbor materials such as Redwood, Ipe, Trex, Timerbtech, and Azek we are sure to find something to fit your lifestyle and budget. You will find a vast array of our work including Composite Decks, Trellises, Patio Covers, Outdoor Kitchens, and Gazebo's. We also do Retaining Walls, Pavers, and Crushed granite patios. See what quality, great design, and craftsmanship are all about. We service Los Altos, Los Altos Hills, Los Gatos, Saratoga, Palo Alto, Almaden Valley, Willow Glen, Campbell, Mountain View, San Jose, and surrounding Bay Area cities. Please take your time while you go through 32 years of building excellence.


Established in 1984.

It's all about listening to my clients, then designing and building to come up with Decks and Arbors that look and feel outstanding. With the right design and balance, my goal is to create for you a very special outdoor living area. With 32 years of experience, there is no other contractor with the passion I have to build something special for your family.

Giving Back


At M&M Builders, I believe in giving back to the community and society for all that I have been blessed with in this life. M&M Builders has donated just shy of $60,000 to local and world charities since its doors have been open. As long as I can create, build, and have a business that has given to me, I will continue to do what I can by doing charity work and donating to charities that I feel are worthwhile. You have my word on that.

Building Greatness Together

I am on the job with my employees every day. I have a mobile office and do the business end while my employees do the building end. We are a team working together to make sure the job gets done right, on schedule, on time, and in a professional manner.

outdoor kitchens, gazebos, patio covers
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