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Trusted Architectural Services in Mechanicsburg, PA
Founded on the principle of Service First, TKS Architects has dedicated itself to delivering architectural excellence through innovative design and unwavering client focus. Our team combines diverse educational backgrounds and industry expertise to create solutions that balance creativity with practicality, ensuring projects meet both functional and budgetary goals. Accredited by leading professional organizations including the American Institute of Architects (AIA) and National Council of Architectural Registration Boards (NCARB), we maintain rigorous standards of practice and continuous learning. With licenses in 21 states and reciprocal capabilities through NCARB accreditation, we serve diverse markets such as healthcare, senior living, education, and commercial sectors.

Our recent merger with Mul Group in 2025 expands our capabilities to include in-house structural engineering, geotechnical services, and environmental consulting while preserving our commitment to personalized service. Led by Doug Tilley, our design team emphasizes natural lighting, cutting-edge materials, and code compliance to deliver efficient, durable, and aesthetically sophisticated spaces. Joseph Mul, AIA, oversees client relationships and business operations, ensuring alignment with our mission to elevate architectural practice through service excellence. Operating from offices in Mechanicsburg, Lancaster, and York, Pennsylvania, we remain dedicated to creating environments that enhance communities and honor the profession's core values.
Services
Healthcare Public Safety Religious Senior Living Food Service Commercial Education Interior Design
Highlights and features
  • We prioritize service excellence over artistic ego in architectural practice
  • Our team holds accreditations with top industry organizations like AIA and NCARB
  • Specialized experience across healthcare, senior living, education, and commercial sectors
  • Expanded capabilities through 2025 merger with Mul Group's engineering services
  • Licensed in 21 states with reciprocal licensing capabilities through NCARB
Associations and certifications
  • American Institute of Architects (AIA)
  • National Council of Architectural Registration Boards (NCARB)
  • Construction Specifications Institute (CSI)
  • International Codes Council (ICC)
Services
Healthcare
We design healthcare facilities that balance critical functionality with human-centered design. Our expertise in natural lighting and code-compliant materials creates efficient, adaptable spaces for medical professionals and patients. Projects emphasize durability and budget efficiency while maintaining aesthetic sophistication.
Senior Living
Our senior living designs combine residential warmth with institutional functionality. We create non-institutional environments using durable materials that promote comfort and dignity while meeting strict safety regulations. Spaces foster independence while supporting care requirements through thoughtful spatial planning.
Education
We craft learning environments that stimulate creativity and community engagement. Our education projects focus on flexible layouts, sustainable materials, and technology integration to support evolving teaching methods. Designs prioritize safety, accessibility, and long-term value for educational institutions.
Commercial
Our commercial architecture optimizes return on investment through strategic material selection and spatial efficiency. We balance brand identity with functional requirements, creating adaptable spaces for evolving business needs while maintaining cost-effective construction parameters.
Interior Design
We provide interior solutions that align with architectural vision and client objectives. Our approach integrates environmental considerations, workflow optimization, and aesthetic coherence to create purposeful, enduring interior environments across multiple sectors.
People
Doug Tilley
Design Lead
Continues leading TKS's design efforts post-merger, maintaining commitment to architectural excellence while integrating expanded engineering capabilities from Mul Group's resources.
Joseph Mul
President/CEO
AIA-certified leader overseeing client relationships and business operations, bringing strategic vision to TKS Architects' growth as part of Mul Group's integrated services.
Questions
What markets does TKS Architects specialize in?
We focus on healthcare, senior living, education, commercial, religious, public safety, and food service sectors with specialized design expertise.
How did the 2025 merger with Mul Group affect services?
The merger added in-house structural engineering, geotechnical, and environmental services while maintaining our original Service First philosophy and office locations.
What accreditations does TKS Architects hold?
Our team maintains memberships with AIA, NCARB, CSI, and ICC, ensuring compliance with the latest architectural standards and codes.
In which states are you licensed to practice?
We hold active licenses in 21 states with reciprocal capabilities through NCARB accreditation for expanded geographic service.
How does TKS approach budget-conscious design?
We emphasize material efficiency, code compliance, and long-term value without sacrificing aesthetic quality or functional requirements in all projects.
What makes TKS Architects different from competitors?
Our Service First philosophy prioritizes client needs over artistic expression, supported by technical expertise across multiple disciplines through our Mul Group partnership.