The early years of the Corporation were guided by the Rule family under Albert E. Rule, President and Owner. Many varied projects were completed in Toronto during the Depression years, the highest profile of which was Humbercrest Public School. Following the Second World War, Albert Rule was succeeded by his sons, Russell and Albert Jr., together with John N. Gillies, their engineering classmate from the University of Toronto.

In 1965, Gerry Dineen and Keith Porter purchased the Corporation. After the passing of Gerry Dineen in 1977, the company was managed by Lloyd P. Kenyon, President, until 1980 when it was purchased by the Clarke family of Toronto. Peter J. Clarke was subsequently elected President, Lloyd Kenyon became Chairman and Carole Clarke, John Gillies’ daughter, was elected Vice Chairman.

Presently, DINEEN Construction is managed by Peter J. Clarke, LLB., Chief Executive Officer, William E. Love, P.Eng., President and COO, Eric R. Wight, P.Eng., Executive Vice President and Dennis Trevisiol, Vice President. DINEEN presently has more than 28 full time employees working at its Head Office and 25 full-time workers at various jobsites.

Throughout DINEEN Construction's 90 plus year history, DINEEN has completed more than 1,000 major projects in seven provinces.


As a general contractor, design builder or in a management role, DINEEN Construction is recognized for its high quality of workmanship, innovative solutions and speed of completion for a wide range of projects.

DINEEN’s Large Contracts Department specializes in industrial, commercial and institutional projects ranging in value from $2,000,000 to $100,000,000, while its Small Contracts Department handles projects ranging from $10,000 to $2,000,000 in value. DINEEN’s Small Contracts Department is largely responsible for the company’s many repeat clients, who have and continue to be the foundation for DINEEN’s success.

DINEEN offers a diverse range of services including in-house and outsourced drawings, site location, site plan approval, permit application, storm water management, mechanical and electrical process, design and construction.

The guiding principle of this firm is to be aggressive in applying new designs, but to proceed from proven experience. As a result, DINEEN has earned a reputation for innovative and reliable construction in all types of industrial and plant projects over the past 90 years.

DINEEN is committed to the pursuance of design innovation, outstanding product quality, superb engineering, project efficiency and total client satisfaction.  


DINEEN Construction's core values are Sin­cerity, Safety, Trust and Comm­itment. Portrayed in every single project and every interaction with our clients, trades and staff.


We believe professional, open and honest communication is essential to a projects success.


We are dedicated to earning the trust of our clients, trades and staff. This trust translates into repeat business, experienced staff and dependable trades.


Our track record of no lost time construction injuries since 2000 is a product of our company-wide commitment to making safety our top priority on all projects.


The leadership and staff at DINEEN Construction are committed to delivering our projects on time and on budget while abiding by our core values.


DINEEN Construction is proud to be a leader in Green construction. DINEEN focuses on providing optimal energy and water efficiencies, maximizing the use of local products and waste diversion from landfills, providing enhanced commission and minimizing the use of toxic materials.

DINEEN’s staff have attended numerous workshops given by the Canada Green Building Council outlining the Leadership in Energy and Environmental Design Green Building Rating System. Presently, DINEEN Construction has two employees with LEED recognition.

Many LEED construction methods are employed by DINEEN Construction on every project as standard construction methods. Using reclaimed crushed concrete under floor slabs and parking lots and separating construction waste by material and recyclable products are some of the methods that have been employed by DINEEN for several years. DINEEN’s Environmental Protection Policy states that all DINEEN employees will commit to reduce, reuse and recycle construction waste. DINEEN Construction is fully committed to reducing waste sent to landfill sites by recycling all waste materials whenever possible.

DINEEN understands the important role and responsibility of the general contractor to attain LEED points during construction.


OGCA contractors stand apart because of their dedication to safety, education, excellence in construction, and most importantly to their customers

Through the Professional Engineers Act, PEO governs licence and certificate holders and regulates professional engineering in Ontario to serve and protect the public.


The Infrastructure Health & Safety Association (IHSA) works with employers and workers in Ontario to eliminate occupational injury and illness. It serves the aggregates, construction, electrical, natural gas, ready-mix concrete, transportation, and utilities industries.

CCA joined the picture in Ottawa in 1918. About 200 energetic industry leaders met and their collaboration sowed the seeds of today’s association. They wanted to improve conditions and inform people about the industry – and they succeeded.


We administer Ontario’s no-fault workplace insurance for employers and their workers. As part of this system, we provide disability benefits, monitor the quality of health care and assist in early, safe return to work for workers injured on the job or who contract an occupational disease. We are entirely funded by employer premiums.

The League of Champions (LOC) is a cross-sectoral organization dedicated to health and safety excellence through collaboration and information sharing on real-world health and safety situations


The Certificate of Recognition (COR™) is nationally trademarked and endorsed by participating members of the Canadian Federation of Construction Safety Associations (CFCSA) of which the Infrastructure Health and Safety Association (IHSA) is a member. It provides employers with an effective tool to assess their health and safety management system.

The Council of Ontario Construction Associations (COCA) is a leading voice for the Ontario ICI and heavy civil construction industry with 32 member organizations representing more than 10,500 construction businesses and more than 400,000 employees.

The Toronto Construction Association, or the General Builders’ Society as it was called then, was founded in February 1867 by a group of 58 Canadian construction industry executives. The association’s mandate in those early days was to promote the highest possible standards of professionalism in an industry characterized by stiff competition and often razor thin margins.

OCS seeks to facilitate an improved competitive position for our partners through upgraded knowledge, direct relations with buyers and owners, an enlightened fact-based public awareness and by encouraging our youth to become respected members of the unionized craft building trades.

The Home Construction Regulatory Authority (HCRA) regulates new home builders and vendors in the province. We protect the public interest through a fair, safe and informed marketplace that supports the goal of a continuously improved homebuilding industry in Ontario.

SIOR is the leading professional commercial and industrial real estate association. With more than 3,000 members in 580 cities in 26 countries, SIOR represents today’s most knowledgeable, experienced, and successful commercial real estate brokerage specialists.


At DINEEN Construction, we are committed to occupational health, safety and environmental protection practices as outlined in our Health & Safety Program Manual. It is our policy to adhere to the practices and procedures outlined in this manual for the complete duration of each project we begin. We take great pride in being one of the first general contracting companies in Ontario to recognize the need for and to implement an Environmental Protection Policy.

We are also proud to have won many Ontario safety awards and to have been recognized for our safe practices by several regional Construction Associations and the governing Construction Safety Association of Ontario throughout the past 20 years.