Van Dijk & Associates

At Van Dijk & Associates, Inc., we have been your trusted source for roofing and waterproofing expertise for over 40 years. Our consultants are seasoned experts in their field, with a deep understanding of the latest technology and materials. We take pride in providing long-lasting, cost-effective solutions tailored to our clients' unique needs. Our global affiliations ensure that our clients receive the latest advancements in roofing and waterproofing, enabling us to deliver innovative solutions that meet the most demanding standards.

Our Expertise

Our expertise is built on decades of experience, combined with a commitment to staying at the forefront of industry developments. We do not accept shortcuts, and instead, focus on delivering high-quality approaches to roof restoration. We believe in the importance of a maintenance program that extends the life of a roofing and/or waterproofing system. Our consultants are dedicated to providing the best possible solutions, and we are proud of our reputation for being trustworthy, loyal, and honest.

Our Services

We offer a range of services designed to meet the unique needs of our clients. Our services include:

Evaluation Surveys & Reports

Get help prioritizing your project's needs. You'll receive clear recommendations and budgets to make your decision-making process easier, and ensuring a watertight solution. Trust us to guide you toward optimal outcomes.

Customized Specifications

Harness the latest technology and materials for your project's unique requirements. We'll help optimize cost-effective solutions with tailored specifications, providing you with accurate and detailed guidance.

Quality Assurance Inspection

Ensure your project adheres to your specifications with our vigilant inspection experts. You'll receive regular progress reports and a comprehensive record for your peace of mind and quality assurance.

Expert Witness

Leverage our vast knowledge and experience for your roofing and waterproofing litigation needs, ensuring your case's success-whether you are a plaintiff or defendant.

Maintenance Program

Extend the life of your roofing system. Our skilled technicians detect potential issues promptly, safeguarding your roof from costly premature failures.

A Greener Future with Efficient Buildings

We assist our clients in providing the most energy-efficient method to roof construction, minimizing heating and cooling costs, and assisting in providing a more environmentally friendly building.

Global Partners

Our clients' satisfaction is our top priority. We are proud to have partnered with leading organizations, including:

Satisfied Clients

• THOMAS A. TOMEO: "Over the 27 years that I have known and utilized VDA's services they have proven to be trustworthy, loyal, honest, friendly and professional. VDA has great knowledge of all roofing and waterproofing materials, applications, repair recommendations and it also has access to manufactures literature. VDA also has superior knowledge of building codes and manufacturers recommendations for all roofing and waterproofing aspects of construction."
• MATT DAVIS: "Van Dijk & Associates has provided waterproofing, building envelope and roofing consulting services on many Projects for Holland Partner Group, with the most recent being the Apex Phase II project, a mixed-use high-rise project located in downtown Los Angeles, CA. I highly recommend Nils and his team at Van Dijk & Associates for any project and look forward to working with them on more projects in the future."
• ANDREW B. NELSON: "Van Dijk & Associates has provided waterproofing and building envelope consulting services to Red Oak Investments and its principals at multiple development sites, including at our current project Baker Block, a 240-unit residential development under construction in Costa Mesa, CA. We find the firm to be reliable, qualified, and easy to work with in their inspections and reviews of waterproofing-related work."