CD³ About

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Building Experiences

As professional renovators, we transform houses into people’s homes.

We want our clients to enjoy the renovation experience as much as possible, so we have developed the exclusive Renovating Right System founded on a solid and well thought-out design planning process, followed by clear communication through the construction stage, and continuing long after the project is finished with our warranty and after-care service program.

We know that renovating may be scary for homeowners, with cost and time over-runs being big concerns. Our Renovating Right System will help make your renovation an enjoyable success.

Building Quality

We believe a quality renovation is more than the products that go into the renovation.  Quality includes your experience working with our team, customizing the renovation to your needs and dreams by working with our designer, the attention to detail in the craftsmanship that is used in your renovation and our building science knowledge that is applied to the technical construction and energy efficient components of your renovation. Quality is knowing that we are here when you need us after the renovation has been completed.    

Building Relationships

Building and maintaining long lasting relationship with our clients, sub-trades, suppliers and industry colleagues is vital not only to the success of the renovation projects we complete, but to life long enjoyment of the craft we have chosen as our occupation. We handpick like-minded trade partners because we rely on them to do their work right. We strive to make your renovation experience a positive one from start to finish. Knowing we have done our very best and provided a renovation that improves our clients quality of life tells us we have done our job right. 

Building Dreams

Founded in March 2005 by John Dias, Stefanie Coleman-Dias, and their son Alex, Coleman-Dias³ Construction Inc. (CD³ ) has built its business on the bedrock of excellent quality, reliability and customer service and has steadily grown through repeat business and referrals from happy clients.

“It was our dream to be self-employed, to allow us the flexibility and freedom to have a family life that we envisioned, which was not possible with our former careers.” John worked for a large construction company in Winnipeg for 22 years. Stefanie worked in the fashion industry for 10 years after graduating from the University of Manitoba and was a clothing buyer for a large Canadian women’s retail chain.

Early 2005, John, Stefanie and Alex moved from Winnipeg to St. Thomas where Stefanie’s family lives and started CD³. “It was a risk to leave our stable jobs, move to St. Thomas and start a construction business, but it was a researched and calculated risk. We knew with John’s technical skills in construction and attention to detail in his craftsmanship, and my background with business management and design from University and the fashion industry, we had the skill set to successfully build the business.”

In May of 2016, CD³ celebrated it's 11 year anniversary. "It has been an incredible 11 years.  We are very fortunate to be surrounded by wonderful clients, trade partners and like-minded colleagues who make coming to work a joy. We are looking forward to many more years of building dream renovations!"




London Inc Magazine

Dimplex Installation Video July 2016

Lifestyle Magazine Sept/Oct 2015  

Renovation Contractor April/May 2015

CHBA BUILDER Magazine Nov/Dec 2015

Global News Nov 17, 2014

OHBA Magazine 2013

Make it Right Mike Holmes 10 Year Anniversary publication (2013). Contributor to article "No fail ways to keep your reno on budget".


Coleman-Dias³ Construction Inc. Serving London, St. Thomas and Area 519-633-6233