About Us

Allied Construction Services


California Contractor License Number: 605271 B, C39, C33

ACS is a full-service Contractor specializing in commercial and industrial construction services, all types of roofing , waterproofing and leak solutions as well as General construction services for building owners and managers.

With over 20 years of construction experience in the bay area, we continue to uphold the founder’s values for providing quality, without compromise, on every job. Our mission is to provide professional service and expert workmanship using high quality materials. As a result, we have built a solid reputation based on honesty, integrity and good old-fashioned common sense.

Our business is construction, but what we build best is relationships.

– Jason Rittenbach, President

Whether your roofing needs are big or small, we have the training and expertise to get the job done right. Our personnel will walk you through every step of the process, working within your budget and schedule. You can rest assured that our skilled estimators and sales staff will be able to provide you a quote quickly that will be comprehensive. Contact us today and find out more about us.


At ACS, our mission is to provide a broad range of services with superior customer service. This is what has made us into the company we are today and we believe that it is the best foundation for our future success.

In line with our mission to create and maintain a Community of Success, our professional team members are fully committed to creating an environment of clear communication, collaboration and commitment to our craft. We recognize that we are more than the sum of our parts and to be successful we have hired a strong team of skilled, hard-working, educated and responsible members. This allows our business to provide high quality service in a timely and efficient manner. We are proud of the high standards of service to which we all hold ourselves.

About Us - Our Leadership

Jason Rittenbach


Donovan Rittenbach

Chief Financial Officer

Maria Oliveira

Accounting Manager