Sierra Construction is an independently-owned and managed Construction Firm based in Woodstock, Ontario. From our beginnings in Infrastructure, we’ve grown to include professional divisions focused on Design-Build, Construction Management, General Contracting, Bridges, and Aggregates to better serve customers across Ontario. Our reputation is only as good as our last project. Working with our network of consultants, suppliers, and subcontractors, our experienced team creates project plans that meet your needs and deliver work that exceeds your expectations.