Detail Oriented. Quality Driven. Schedule Focused. Customer Centric.
At D.L. Engineering, we are a premier structural engineering firm with a passion for delivering exceptional service and innovative solutions. Our team of experts has extensive experience in providing superior engineering designs that meet building code requirements while exceeding our clients' expectations. With a strong commitment to quality, detail-oriented approach, and schedule-focused methodology, we strive to be an extension of our clients' businesses.
Our Services
As a boutique firm, we offer specialized services in two distinct areas of expertise: Residential and Natural Stone. Our Residential services cater to the needs of esteemed builders, architects, and designers in the Greater Toronto Area, providing structural engineering solutions for both large custom homes and conventional Part 9 residential sub-divisions. Our expertise allows us to work seamlessly with clients to deliver practical, cost-effective, and effective engineering solutions.
Our Natural Stone services encompass stone consulting, engineering, shop drawings, and tickets for exterior and interior projects. With extensive experience in stone cladding, restoration, and innovative natural stone design, we have contributed to some of North America's most impressive natural stone projects. Our commitment to prompt response times and individual attention sets us apart from other engineering firms.
Sectors We Serve
Our services extend to various sectors, including Residential, Cultural, Commercial, and Governmental. We take pride in having collaborated on prestigious projects such as Toronto's iconic Union Station, a landmark that showcases our team's expertise in stone restoration and engineering.
Our Commitment
At D.L. Engineering, we understand the importance of effective communication, collaboration, and accessibility. Our commitment to our clients is to provide exceptional service, deliver on-time and on-budget, and maintain the highest level of quality control measures. We believe that building long-term relationships with our clients is crucial, and we strive to validate this commitment through each decision we make on their behalf.
Meet Our President
Derek Lai, President and a Professional Engineer (P.Eng.), has over two decades of experience in structural engineering. With a deep understanding of the industry, Derek has built a team of experts dedicated to delivering exceptional service and innovative solutions. His approach to quality, detail, and schedule focus has earned him a reputation for being accessible, accountable, and dedicated to his clients' success.
Testimonials
We are proud of the testimonials from our satisfied clients, who have witnessed firsthand our commitment to quality, professionalism, and attention to detail. From Richard Wengle, Architect, to Zach Goldstein, President, GreenGold Construction Ltd., our clients have praised our dedication to delivering exceptional service.
Why Choose Us
At D.L. Engineering, we are passionate about delivering superior engineering designs that meet building code requirements while exceeding our clients' expectations. With our expertise in Residential and Natural Stone services, we are well-equipped to meet the unique needs of our clients. Our commitment to quality, detail-oriented approach, and schedule-focused methodology sets us apart from other engineering firms.
Join Us
If you're looking for a trusted partner in structural engineering, D.L. Engineering is the answer. We invite you to explore our services and learn more about how we can support your project's success.

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