Contact Us Today! 716-759-8109

Our History

Founded in 1977, Mandon Building Systems, Inc is a family-owned commercial construction company based in 1977. Throughout the years, we have nurtured a reputation for our professionalism, quality of workmanship, and respect for our customers. Our success is — and will continue to be — measured by our ability to provide customers with the best service available in the construction industry.

Award-Winning Services & Commitment to Our Customers’ Needs

Our company is a recipient of the Outstanding Workmanship Award from Dryvit at the Fiorella Residence. From our beginning, we have been committed to building each project on time, within budget, and to employ the best and most qualified employees. Each of our employees is training in many different skill sets so that we can maximize our productivity. This versatility helps us go above and beyond to meet our customers’ needs.

Our Staff

All Mandon employees are professional, courteous, and treat all projects with enthusiasm. We are an EFISmart Certified Contractor and work with contractors across Western New York. We have the skills and capabilities to complete projects in a variety of industries including retail, restaurants, medical facilities, breweries, grocery stores, self-storage, hotels, and more.


Ken Stephan - President


Cliff Stephan - Vice President


Tim Boyd - Estimator


Rosemary Parker - Estimator


Shannon Kammerer - Estimator


Greg Stephan – Estimator


Eric Sutherland – Estimator


Wendy Dickerson – Office Manager


Rachel Silvestro – Human Resources

Coffee and notes, Mandon Building Systems, Inc., Lancaster, NY
For more information about our services, our company, or to schedule a consultation, please contact us today at 716-759-8106. We look forward to hearing from you.

Contact Us

Mandon Building Systems Inc

84 Gunville Rd

Lancaster NY 14086

P: 716-759-8106

F: 716-759-8109

Monday – Friday

7:30 am – 4:00 pm