Valentine Underground
Valentine Underground crews at work on a civil infrastructure project
CIVIL INFRASTRUCTURE · EST. 1922

VALENTINEUNDERGROUND

We are the Foundation
of Reliable Infrastructure.

Explore our work
A LEGACY THAT RUNS DEEP
100+
YEARS OF BUILDING
STRONGER COMMUNITIES
01 WHO WE ARE

DEEP ROOTS.
FORWARD THINKING.

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.

Explore our history
Infrastructure workers inspecting a large underground pipe
BUILT ON RESPONSIBILITY

Safety comes first.

We’re proud to display our IHSA Certificate of Recognition as proof of our unwavering commitment to top-tier safety on every project.

Respect for what surrounds us.

Valentine Underground Services Ltd. takes pride in caring for the environment and community during its site work. We understand that we are the face of our client on site, and recognize the importance of environmental responsibility.

PROUD UNION AFFILIATIONS
IUOE Local 793LiUNA Local 183LiUNA Local 506
02 OUR EXPERTISE

THE WORK BENEATH
EVERYTHING.

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.

01

Storm Sewer Installation

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.

02

Sanitary Sewer Installation

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.

03

Water Main Installation

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.

04

Interior Drain Installation

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.

05

Municipal Connections

We handle municipal water and sewer connections, seamlessly integrating properties into existing infrastructure. Our team ensures compliance with local regulations and efficient service connections.

06

Road Work Improvement

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.

07

Stormwater Management

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.

08

Duct Bank Trenching

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.

09

Mechanical Trenching

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.

10

Emergency Repairs

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.

11

Sidewalks & Curbs

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.

12

Earthworks

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.

13

Paving

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.

OUR CAPABILITIES 01 / 13

Storm Sewer Installation

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.

Discuss your project
03 SELECTED PROJECTS

OUR WORK.
YOUR EVERYDAY.

From community parks to international airports. The infrastructure that keeps life moving.

View all 11 projects
A team of construction professionals
04 BUILD YOUR FUTURE

GREAT WORK
STARTS WITH
GREAT PEOPLE.

Join a team that values people as much as projects.

Find your place
05 GET IN TOUCH

LET’S GET
TO WORK.

Good projects start with a conversation.

905-677-1117
GENERAL ENQUIRIESinfo@valentineunderground.com
ESTIMATINGEstimating@valentineunderground.com
FIND US

1510 Drew Rd Unit 6 & 7, Mississauga, ON L5S 1W7

Tell us what you’re building. Fields marked * are required.