D G Biddle & Associates
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D G Biddle & Associates
Established in 1973 and incorporated in 1974, D.G. Biddle & Associates Limited provides Consulting Engineering and Planning services in Southern Ontario, mainly in the Durham Region and surrounding area. The company has a staff of approximately 45, including Professional Engineers, Planners, Technicians, administrative staff and field personnel.

We specialize in Civil, Structural, Mechanical and Electrical Engineering and Planning services for both private and public clients. Since 1973, D.G. Biddle & Associates Limited has provided Consulting Engineering and Planning services in Southern Ontario.
Services
D.G.Biddle & Associates Limited was formed in 1973 by Devon G. Biddle, and incorporated in 1974 to provide Consulting Engineering Services, principally in Civil Engineering. The company grew from an initial group of 3 employees to what it is today. Currently, the firm offers Consulting Engineering and Planning services principally in the land development industry, with a complement of approximately 45 employees.
D.G. Biddle & Associates provided engineering design and construction administration for a Draft Plan of Subdivision for 68 new single family homes. Professional services provided include planning applications, design of municipal services (sanitary, storm and water), lot grade design, obtained approvals from the Region of Durham, Municipality of Clarington and Central Lake Ontario Conservation and construction administration.
We currently have an immediate opening for a Municipal Services Design Technologist with a minimum of 5+ years of related experience in subdivision or municipal servicing projects. Applicants must have a Civil Engineering Technician/Technologist (CET) education and an ability to work independently.
D.G. Biddle & Associates Limited works closely with provincial and municipal government approval agencies to ensure design plans meet all design criteria and the Ontario Building Code. We offer a full range of services for residential, commercial, institutional, and industrial land uses. Municipal site services design, including storm sewers, sanitary sewers, domestic water and fire lines.
The Planners at D.G. Biddle & Associates Limited draw on significant municipal and private land use planning experience to navigate land development and municipal approvals process. We work in concert with our clients, our in-house engineering professionals and sub-consultants to take your small or large projects from initial concept to final design.
Reviews (5)
TMccaff
TMccaff
Dec 11, 2021
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They don't return calls, voicemails, or emails. Imagine what it would be like after you gave them your money.
Amyn Pardhan
Amyn Pardhan
Sep 26, 2021
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Robbie was big help appreciate all of the guidance and advice he gave us.
Raju Pathak
Raju Pathak
Aug 02, 2021
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What can I say useless people left 4 messages 2 weeks ago for Mike fry has not returned my call yet reception not picking up the phone I don't know why they are in business? I wish I could add minus stars.
J. W.
J. W.
Sep 11, 2019
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This firm is amazing. They work professionally and quickly, while caring for their clients. Tim did drawings and review for us in an extremely timely manner, and when clarification was needed, he went above and beyond to assist us, even when it was late in the day on a Friday. Thank you so much Tim.
Richard Lafrance
Richard Lafrance
Dec 26, 2017
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These fine folks came on short notice to advise us about a broom closet wall that was slated to be removed in preparation for a kitchen reno. It turns out that a portion of the wall is structural support . We were able to return to our kitchen designers in time to adjust the design to take this important information into account before we were financially committed to the original design. Kudos to Will from Biddle for a job well done.