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CONSTRUCTION SOLUTIONS THAT SCALE TO EVERY PROJECT.

From site preparation to complex infrastructure, we bring technical precision and proven results to projects of every size.

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AGGREGATES THAT BUILD WHERE WE LIVE, WORK, AND GROW

We know rock. From quarry to job site, our team delivers reliable materials with the same dedication that’s driven us for generations.

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YOUR COMPLETE CONCRETE PARTNER

With in-house forming crews, ready-mix production, and skilled masonry, Cavanagh Concrete offers complete concrete solutions backed by experience and care.

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FULL-SERVICE GENERAL CONTRACTING, FROM CONCEPT TO COMPLETION.

We offer fully integrated solutions — from early design planning to on-site execution — ensuring every project is efficient, collaborative, and built to the highest standards.

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ASPHALT WORK DONE RIGHT, FROM DRIVEWAYS TO HIGHWAYS.

We take on projects of every size — municipal, MTO, or residential — with the same attention to detail and dedication that define our work.

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COMMUNITIES BUILT FOR LIFE, WORK, AND EVERYTHING IN BETWEEN.

We design and develop spaces that support how people truly live — from welcoming homes and family-friendly rentals to dynamic commercial spaces.

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FLEET&HEAVY EQUIPMENT that keep your operations moving

Every day, our equipment is on the road—hauling material to your jobsite or supporting your operation with reliable heavy equipment for rent or purchase.

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BODY SHOP services providing expert finishes

Our experienced mechanics and paint specialists handle everything in-house and are held to the highest standard of performance and appearance.

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From a single truck to one of the region’s most trusted names, Thomas Cavanagh Construction Ltd. has grown alongside the communities we serve. For over 70 years, we’ve built with integrity, quality, and pride—delivering expert services in construction, aggregates, asphalt, concrete, residential development, and more. Backed by a skilled team and one of the region’s largest fleets of heavy equipment, we remain committed to building vibrant communities and upholding the legacy of our founder, Tom Cavanagh.

Who We Are

WORKING AT CAVANAGH

At Cavanagh, you’re not just building projects — you’re building communities. Whether you’re operating equipment, managing projects, or supporting our operations, every role here makes a real difference. Join a team where you can grow, take on new challenges, and be proud of the work you do every day.

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Life At Cavanagh

See Our Crew in Action

Our Work

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Our History

What began with one man and one truck has grown into a fully integrated organization of more than 1,200 team members serving Ottawa and the surrounding communities. Every milestone and achievement has shaped the company we are today — rooted in quality, driven by people, and built to keep moving forward.

1953

One man. One truck.

After hearing about opportunities on the St. Lawrence Seaway Project, Thomas Cavanagh put his 1948 F7 single-axle dump truck to work. The earnings from that job provided enough for a down payment on another truck.

1954

Cavanagh Bros. Equipment Rental

It was a family operation. With their dump trucks, farm tractor, track loader, and bulldozer, the three brothers—Tom, Gerald, and Terry—took on any work they could find, from cleaning up fence rows to renting out their equipment. Having grown up on a farm, hard work and operating machinery came naturally to them.

1968

Goulbourn Quarry

On May 22, 1968, Tom purchased the property that would become Goulbourn Quarry. After walking the land with his wife and business partner, Kay, one evening, he kicked a loose stone and remarked, “This would make a good quarry.” They started selling crushed stone that same year.

1984

Highway 7 Headquarters

By 1984, Thomas Cavanagh Construction Ltd. had outgrown its cramped home office on Munster Road. When a property along Highway 7 became available, the team seized the opportunity and established an official headquarters. The site would later become 9094 Cavanagh Road after the realignment and widening of Highway 7.

1999

Cavanagh Developments

After beginning their first land development project during the housing boom of the late 1980s and completing it during the subsequent recession of the early 1990s, Thomas Cavanagh Construction officially entered the land development industry to manage large-scale projects, later establishing Cavanagh Developments in 1999.

2000

Homebuilding

Cavanagh turned its focus to building vibrant communities. Patten Homes was acquired by Cavanagh to help bring that vision to life through thoughtfully designed, high-quality homes.

2007

Henderson Quarry

Henderson Quarry marked its first blast on December 20, 2007. Strategically located along Highway 7, it serves as Cavanagh’s flagship quarry operation.

2009

Highway 417

Building on its expertise, Cavanagh took on its first major MTO project with the Highway 417 expansion near Arnprior in 2009. Two years later, the company’s success continued with another 417 expansion from Highway 7 to Eagleson Road — projects that marked a new era of large-scale infrastructure for the growing organization.

2011

Entering the Asphalt Market

To facilitate the second 417 expansion and strengthen vertical integration, Cavanagh established its first asphalt plant at Henderson Quarry.

2013

General Contracting

Expanding further into the construction industry, Cavanagh created its General Contracting team giving the company the ability to support clients with a wider range of projects.

2014

Expansion into Concrete Production

The acquisition of McNamee Concrete added ready mix and forming to Cavanagh’s long list of products and services. This would be known as Cavanagh Concrete by 2016.

2018

Enerdu Hydro dam

Cavanagh completed the reconstruction of a historic mill in Almonte into a state-of-the-art hydroelectric facility in 2018 – just one of the key milestones in the organization’s sustainability initiatives.

2019

Thomas Cavanagh Foundation

To honour Tom’s lifelong spirit of generosity, the Thomas Cavanagh Foundation was created to continue his legacy of giving. While Tom was known for his spontaneous acts of kindness, one of his final wishes was a $1,000,000 donation to the Carleton Place & District Memorial Hospital—unaware that the new emergency wing would later bear his name. This gift marked the beginning of many more made through the Foundation.

2022

Residential 1

Residential 1 evolved into a true one-stop shop for builders—an innovative model that positioned Cavanagh as a leader in managing complete exterior housing projects. With the ability to handle every trade, this sector serves as a trusted partner rather than just a service provider.

2023

70 Years of Cavanagh

After seventy years of building, growing, and giving back, the company and team members reflected proudly on the past while keeping focus on the future.

The Thomas Cavanagh Foundation

Continuing the Legacy of Thomas Cavanagh

Learn About the Foundation

Continuing the Legacy of Thomas Cavanagh

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An experienced project superintendent overseeing operations at a residential development site in Eastern Ontario.
Founders Tom and Kay Cavanagh standing in front of a heavy transport trailer during a community event in Eastern Ontario.
A candid photograph of the company founders representing the human element behind large-scale infrastructure in Ottawa.
A professional portrait of the company founder, symbolizing over 70 years of construction excellence in the Ottawa region.

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