Assistant Builder

Construction - Site GTA, ON


GTA – Various Locations, Ontario


Mattamy Homes (Canada)



Construction - Site, GTA Lowrise


Employment Type:


Reports to:



Who We Are

Mattamy Homes is the largest privately owned homebuilder in North America, with 40-plus years of history across the United States and Canada. Every year, Mattamy helps more than 8,000 families realize their dream of home ownership. In Canada, our communities stretch across the Greater Toronto Area, as well as in Ottawa, Calgary and Edmonton.


What We Offer

As the Assistant Builder you are in an entry-level building management position which assists the Builder in overseeing timely construction of each home -- within budget, to company high quality standards while striving to provide The Best Homeowner Experience.  You play an important role in producing QA-ready homes by coordinating various complex aspects of construction process, in an efficient, safe manner through effective assistant management of trades, suppliers, and staff.


  • Assists Builder in ensuring complete adherence to Mattamy Construction Processes, in accordance with Mattamy Policy and Procedures.
  • Assists Builder in managing construction of assigned homes from carpentry to warranty service request signoff.  Assumes shared responsibility for each home meeting ALL standards, including QA ready.
  • Attends regular staff meetings and may substitute for the Builder at such meetings.  Comes prepared to discuss safety, quality, production timelines, costs and other issues as determined by Site Manager.
  • Assists in monitoring all daily trade functions:  timeliness, quality of workmanship and completion of work.  Walks all homes daily to ensure imperfections are noted, Building Code is adhered to, and Homebuyers’ Options and Extras are done.  Adheres to procedures as required by the trade Scopes of Work and Mattamy Quality Standards.  Takes corrective action, as necessary.
  • Conducts detailed frame check on each unit prior to drywall, in accordance with Mattamy Policy and Procedures, and follows up to ensure timely completion of any items noted.
  • Along with Builder, shares responsibility to schedule and conduct homeowner frame walk.
  • Assists Builder in supervising on-site construction staff, including the scheduling of subcontractor’s inspectors and suppliers on the job, resolving day-to-day problems on the job site, inspecting all work during construction to ensure compliance with plans and specifications, and resolving construction problems.
  • Assists in ordering all materials required to construct houses.
  • Communicates and coordinates activities with trade partners to ensure smooth production operation.
  • Assists Builder in scheduling and may attend municipal inspections.  Assists Inspectors with the completion of review and rectifies issues as required.
  • Assists the Builder in managing to Production Schedule and updating it no less than weekly.
  • Assists Builder in enforcing Lumber Management Program with supplier and framer as developed by Purchasing Department, in accordance with Mattamy Policy and Procedures.
  • Ensures all work being done in a safe manner and enforces safety standards and laws within position’s scope of authority.
  • Ensures homes are as clean and aesthetically appealing as possible while under construction.


What You Bring

  • Post-secondary education / Community College in related field (e.g. Construction Engineering Technology) or suitable combination of education and relevant industry experience preferred
  • Minimum 1-2 years’ experience in homebuilding industry in absence of post-secondary education
  • Experience using BuildPro would be considered an asset
  • Good technical understanding of homebuilding
  • Intensely focused on delivering a quality product --- takes pride in building a QA-ready home
  • Basic understanding of Ontario Building Codes and Health & Safety regulations
  • Ability and experience in recognizing and solving problems, taking initiative in seeking direction from direct supervisor when uncertain
  • Good customer service skills
  • Self-started who leads by example and readily assumes responsibility for results; readily takes on greater responsibility
  • People management experience as asset
  • Good organizational skills and experience using basic tools such as to-do lists, day timer, logbook, daily follow-up
  • Good interpersonal and communication skills required, both oral and written
  • Willing to take responsibility and be held accountable for results


Health & Safety

We are doing our part to safeguard your health and taking extra steps to reduce the spread of COVID-19. All work sites and premises will allow for required physical distancing requirements, and new routines and resources such as hand sanitizer, antiseptic wipes, masks, or other protective equipment.


Vaccination is the single best protection against COVID-19 for us as individuals and our communities and is vital to maintaining our commitment to health and safety. The successful applicant will be required, as a condition of employment with Mattamy, to provide Mattamy with proof that they have received the full series of a COVID-19 vaccine (or combination of vaccines) authorized by Health Canada, subject to accommodations required under applicable human rights legislation.


Why Mattamy

Be Yourself. We want it that way! At Mattamy, we’re passionate about creating and promoting a diverse and inclusive environment where everyone can do their best work. Diversity and inclusion are important aspects of the work we do to support our homebuyers, colleagues and communities. We offer a workplace that allows our employees to experience exciting possibilities in their career including continuous learning, opportunity for growth, competitive compensation and a comprehensive benefits package.


When you’re part of the Mattamy family, your day to day work has an incredible impact. What we do takes teamwork, and everyone pulls together to give our very best. With a focus on continued growth and industry leadership, exciting career possibilities are waiting for you at Mattamy. Based on the culture we pride ourselves on, we’ve been recognized with external awards as well. Some of our most recent recognition includes:


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Canada’s Best Managed Companies
(2022, 2021 & 2020)

Canada’s Top 100 Employers
(2020 & 2019)

Greater Toronto’s Top Employers
(2022, 2021, 2020 & 2019)

Canada’s Most Admired Corporate Cultures
(2021 & 2017)


We have big plans for our business and our team. Be part of our ambitious future!


Mattamy Homes is committed to providing accommodation for people with disabilities. If you require accommodation through any aspects of the selection process, please notify us on your application and we will work with you to meet your needs.


Qualified applicants will be contacted directly by the Talent Acquisition team.