About Us
About Seneca Architectural Products
Arizona’s Trusted EIFS and Architectural Finishes Supplier Since 1987
For nearly four decades, Seneca Architectural Products has been the go-to choice for EIFS (Exterior Insulation and Finish Systems), exterior cladding, and architectural finishes in Arizona. Established in 1987, we are proud to be recognized as the state’s oldest and most trusted EIFS supplier and distributor. Our reputation is built on integrity, craftsmanship, and long-lasting relationships with customers and partners across the construction industry.
As a family-owned and second-generation business, we deliver the personal service and expertise that large corporate competitors cannot match. Contractors, architects, and building owners trust us not only for high-quality materials but also for the honest guidance, hands-on support, and customized solutions we provide for every project.
Serving Arizona with Pride
With distribution yards in Phoenix and Dewey and a fully equipped Product Showroom and Design Center in Phoenix, we proudly support construction projects of every size. From residential homebuilders to commercial developers, we are the EIFS supplier Arizona contractors depend on for reliable products and expert service.
Why Choose Seneca?
- Experience That Matters: Decades of expertise in EIFS and architectural finishes across Arizona
- Personalized Service: Fair, respectful, and relationship-driven approach to customer care
- Trusted Legacy: A tradition of quality carried forward by second-generation ownership
- Local Commitment: Deep roots in Phoenix and throughout Arizona’s building community
Building More Than Projects, Building Trust
At Seneca, we believe in doing business the right way. Whether you are designing a custom home, restoring a commercial façade, or sourcing materials for a large-scale development, we deliver the same commitment to quality, service, and integrity.
We are more than a supplier. We are a partner in Arizona’s construction industry, offering premium EIFS products, architectural finishes, and decades of expertise to ensure your project’s success.
Meet Our Founder
Bob Cowley founded Seneca Architectural Products in 1987 with a clear vision: to supply high-quality building materials backed by deep technical knowledge, honest guidance, and a commitment to craftsmanship.
With a lifelong passion for building, design, and architecture, Bob brought a unique blend of hands-on experience and industry insight. His early years working in the trades – and his natural mechanical aptitude – gave him a strong understanding of how materials and systems perform, integrate, and endure. This foundation shaped his approach to product selection and customer service: always honest, never overselling, and fully aware of both the benefits and limitations of every system.
Bob’s appreciation for quality construction runs deep. He valued not just the materials themselves, but the detailing, installation, and workmanship that bring a project to life. He held a high level of respect for everyone involved in the building process, with a special emphasis on the skilled professionals who install the products.
Guided by strong family values, a tireless work ethic, and unwavering integrity, Bob built Seneca Architectural Products to reflect the principles he lives by. His first product line choice was clear: Senergy Exterior Insulation and Finishing Systems (EIFS), followed by conventional cement plaster, stucco, and imported Italian plasters – each selected for performance, beauty, and reliability in the demanding climates of the Rocky Mountain and Southwestern regions.
Today, Bob’s legacy continues to shape our company’s mission: delivering trusted materials, expert support, and lasting value to every project we touch.
Our Core Values
The Principles That Drive Seneca Architectural Products
Guided by integrity, expertise, and respect, our team of experts promises to deliver solutions that stand as strong as the structures we help create.
YOUR SATISFACTION, OUR COMMITMENT
Excellence in Every Project
From material selection to final installation, we measure our success by your satisfaction. Quality isn’t just promised – it’s delivered.
