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Based on 19 reviews.
Andy Ternent
Andy Ternent
I would absolutely recommend working with GranDesign. Mohammad made the permit process effortless and extremely efficient, we will definitely be working with Grandesign in the future.
Julie Marquardt
Julie Marquardt
Mohammad was very professional to work with. He helped us change our plans to exactly what we wanted and explained everything to us. He was very quick to get the drawings done and respond to us with updates or answer any of our questions.
Epic Interlock & Landscape
Epic Interlock & Landscape
Mohammad at GranDesign Engineering was very knowledgeable and showed a lot of perseverance in obtaining a special Covered Roof Permit for my client's new Backyard Renovation. During the Covid-19 Pandemic, the permit process was painful and extremely slow, however, Mohammad was able to forge through and got the permit approved in a speedy manner. I will be using GranDesign for permit applications for my company, without hesitation. Thank you, Mohammad!
Jennie del Sol
Jennie del Sol
I called Mohammad on a Saturday afternoon to inquire about his services, and he was at our house to inspect the project we are working on the very next day. He provided drawings with a very quick turn over time, but even more impressive is Mohammad's continued support while we navigate some supply issues. He is always quick to respond with any questions we have via a phone call or a text message, which is greatly appreciated. His pricing is very reasonable and he respected "covid protocols" while in our home. Thanks Mohammad!
Recently I had a project with them and I am very satisfied . I found the company very professional and accurate that followed up the process step by step and always a warm and friendly back up during project. I will definitely recommend them to others.
Francis Sable
Francis Sable
It was a great experience working with Mohammad. He gave an extensive detail to the job, he makes sure that the work is according customer's satisfaction and expectations. He made sure we are happy with the final plans on the drawings for our home project. I would definitely recommend Grandesign for any residential and commercial projects. Thank you again Mohammad!
Nekicha Lewis
Nekicha Lewis
I noticed cracking around the drywall that was over a structure beam and called Mohammad. He came to the house within hours and inspected the area. Within days he had a crew out fixing the issue and now my house is secure. I can't believe the builder did such shotty work. My structure beam was padded with plywood which had started to crack under the stress. Since working with GranDesign, we now feel secure in our home.
Laurie Zacour
Laurie Zacour
Mohammad was amazing to work with. He provided the drawings for the underpinning of our basement, including a walk out from the lower level to the outside. Mohammad was extremely thorough and responsive. He really took the time to talk to us, make recommendations as well as incorporate what we wanted. He was a real pleasure to work with and we hope to work with him again. Would highly recommend Mohammad and GranDesign to anyone.
Owen Clarke
Owen Clarke
GranDesign Engineering was courteous and attentive to detail and helped me get my site plans in record time, when all the others were giving empty promises. Thank you very much!
Francesco Barberio
Francesco Barberio
Would HIGHLY RECOMMEND Grandesign, Mohammad Ghofrani for any Company or Individual considering Professional Engineering. From Initial contact, felt very comfortable…he’s very honest, reliable and above all, gets the job done. (doesn’t stop until he does). His commitment, dedication to his work, his clients (very fair with his pricing) attention to detail (will explain until you fully understand) AND always being available (like literally) is unlike I’ve ever seen before. He goes above and beyond and has truly exceeded my expectations. Thank you Mohammad, GREAT job!

Why us?

30+ Years Experience

Over 3 decades of work, we have successfully finished thousands of projects

Satisfied Customers

All of our customers have been completely satisfied with our services. Check out our reviews on Google.

Competitive Pricing

Understanding that budgets are often tight, we work hard to provide the most value to our clients

Great Support

We work with you anytime, including evenings and weekends to meet your schedule

Fast Turn Around

We work hard to get the job done as soon as possible allowing you to enjoy results faster.

Qualified Professionals

Our experts provide the best solutions to your problems

Our Services

We can help you build, expand, or renovate buildings in all categories and can handle a wide variety of projects. We also help you obtain the appropriate permits from the regulating bodies. Do not hesitate to contact us to see if we can help you with your renovation and addition.
We are happy to undertake an amplitude of structural detailing as well as provide efficient shop and erection drawings.

Structural Design

We analyze and design all types of superstructure with wood, steel and concrete framings


We work with some of the best professionals and monitor the development of your project throughout all stages

Planning and Permits

We provide the drawings as well as the documentation needed for permit applications and follow up with the city to ensure optimal turn arounds.


We conduct inspections and generate reports for a variety of purposes.

Mechanical Design

Through our partners, we provide you with mechanical engineering services at competitive rates.

Interior Design

Our team will help you design your home such that you get the most utility out of your space.

Get In Touch

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49 Ball Crescent

Whitby, Ontario

L1P 1W5

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