VALENTINE UNDERGROUND CIVIL INFRASTRUCTURE
We are the Foundation of Reliable Infrastructure.

About
Celebrating Over 100 Years Of Infastrucutre Services in the GTA
For over 100 years, our close-knit team at Valentine Underground has been more than just builders—we’re proud neighbors dedicated to strengthening our GTA community. We combine traditional know-how with fresh, modern approaches to create infrastructure that truly stands the test of time.
Health & Safety
We’re proud to display our IHSA Certificate of Recognition as proof of our unwavering commitment to top-tier safety on every project.
Eco Responsible
Valentine Underground Services Ltd. takes pride with it's commitment to being both responsible to taking care of the environment and community during its site work. We understand that we are the face of our client while we are on site, and realize the importance of ECO responsibility.
Union Affiliations

Services
We specialize in delivering high-quality infrastructure solutions across a wide range of sectors, including commercial, industrial, and residential developments. Our expertise extends to road improvement projects, institutional facilities, life sciences, data centers, and municipal infrastructure. With a commitment to precision, efficiency, and durability, we provide comprehensive services that support the growth and sustainability of communities and businesses.
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We specialize in installing storm sewer systems that efficiently manage rainwater runoff, reducing the risk of flooding and erosion. Our team ensures durable, high-quality drainage solutions for long-term performance.
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Our sanitary sewer installation services provide reliable wastewater management, ensuring safe and efficient transport to treatment facilities. We adhere to the highest industry standards to support public health and environmental protection.
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We install and upgrade water main systems to deliver clean, safe drinking water to communities. Our expertise ensures minimal disruption while maintaining the integrity of municipal water infrastructure.
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We install interior drainage systems to effectively manage water buildup in basements and industrial facilities. Our solutions help prevent water damage and maintain a dry, stable environment.
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We handle municipal water and sewer connections, seamlessly integrating properties into existing infrastructure. Our team ensures compliance with local regulations and efficient service connections.
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From road resurfacing to full reconstruction, we enhance transportation networks with high-quality road work improvements. Our projects prioritize durability, safety, and minimal disruption to traffic.
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We design and implement stormwater management systems to control runoff, prevent flooding, and protect water quality. Our solutions support sustainable urban development and environmental conservation.
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We provide expert duct bank trenching for the safe and organized installation of electrical and communication conduits. Our work ensures long-term protection and accessibility for underground utilities.
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Our mechanical trenching services offer precise and efficient excavation for piping, electrical, and mechanical systems. We use specialized equipment to minimize disruptions and meet project timelines.
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We offer 24/7 emergency repair services for water mains, sewer lines, and other critical infrastructure. Our rapid response team ensures fast and effective solutions to minimize downtime and property damage.
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Our commercial concrete sidewalks and curbs are designed for durability, precision, and compliance with municipal standards. We deliver clean, consistent results that support safety, drainage, and visual appeal across high-traffic sites.
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Our earthworks services include excavation, grading, and land preparation for construction projects of all sizes. We focus on precision and efficiency to create a solid foundation for infrastructure development.
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We specialize in commercial paving built to withstand heavy traffic and tough weather, ensuring long-term performance and minimal maintenance. From parking lots to industrial yards, our paving enhances both function and appearance.

Projects
Mattamy Sports Park
500,000 Sq Ft Industrial Building
Billy Bishop Airport
1.3M Sq Ft Industrial Development
Mulock Park
Halton Regional Police
Toronto Pearson International Airport
Loblaws DC Kentucky
Enercare Center
BMO Field
Sanofi Pasteur
Contact
General Email: info@valentineunderground.com
Estimating Email: Estimating@valentineunderground.com
Phone: 905-677-1117
Address: 1510 Drew Rd Unit 6 & 7 Mississauga, ON L5S 1W7