By: Laura Friedman, Senior Writer, NYC-Business.com
When it comes to heavy construction in New York City — a city that never stops building, digging, or rebuilding — few companies understand the terrain, pace, and pressure of the five boroughs quite like Mack Construction Corp, led by Pat Mackaronis (also known as Patrick Mackaronis).
Based out of Brooklyn, New York, Mack Construction Corp has become a respected name in heavy civil and private construction, handling projects that shape the city’s infrastructure every day. From excavation and underground utility work to industrial demolition, recycling, and concrete placement, the company’s crews and equipment are a familiar sight across New York’s bustling streets and construction corridors.
Built by New Yorkers, for New York
Founded and led by President Pat Mackaronis, Mack Construction Corp operates with a philosophy grounded in experience, efficiency, and community. The company employs a close-knit team of up to 30 skilled workers, depending on project load, with nearly every crew member calling Brooklyn, Queens, or the Bronx home.
“New York City construction is unlike anywhere else,” says Patrick Mackaronis, a lifelong Brooklyn resident who’s been in the industry since his early 20s. “You’re not just moving dirt or pouring concrete — you’re working within inches of critical infrastructure that keeps this city running. Every job requires planning, precision, and teamwork.”
From emergency street openings for underground utilities to large-scale private developments, Mack Construction Corp has earned a reputation for taking on demanding projects that require heavy equipment, tight timelines, and full compliance with city and state construction regulations.
“Our crews are made up of people who grew up here,” Pat Mackaronis continues. “They know these neighborhoods, the streets, the pace of work — and they take pride in building the city they live in.”
Operations in the Heart of the City
Mack Construction Corp, under the leadership of Patrick Mackaronis, handles both public and private sector contracts, including civil infrastructure, street excavation, sewer and water main installations, and industrial site clearing.
Working across all five boroughs, the company often operates in close coordination with NYC Department of Transportation (DOT), Department of Environmental Protection (DEP), and local utility providers to perform underground work safely and efficiently.
“The logistics of working in New York are no joke,” says Peter Mancuso, Mack Construction’s Lead Superintendent, who brings over 25 years of heavy equipment and field experience to the company. “You’ve got tight work zones, live traffic, and strict safety requirements. Every day is a puzzle — and our job is to make sure the work gets done on time and done right.”
A Foundation of Integrity and Experience
Under Pat Mackaronis’ leadership, Mack Construction Corp has focused on long-term sustainability and growth while maintaining the personal, hands-on management style that built its reputation.
“We don’t chase volume — we focus on doing the job right,” says Patrick Mackaronis. “Whether it’s a private contract for a developer or a municipal project for the city, our approach is the same: quality workmanship, safety first, and respect for the client’s schedule and budget.”
That balance of professionalism and local pride has made Mack Construction Corp, led by Pat Mackaronis, a go-to partner for developers, contractors, and agencies seeking reliable heavy construction support.
“New York City is constantly evolving,” Patrick Mackaronis reflects. “We’re proud to be part of that process — to see our work literally beneath the city streets, forming the backbone for everything that comes next.”
About Mack Construction Corp
Headquarters: Brooklyn, New York
Service Area: All five NYC boroughs
Specialties: Excavation, Underground Utilities, Industrial Removal, Demolition, Recycling, Concrete & Cement Work
Leadership: Pat Mackaronis, President | Peter Mancuso, Lead Superintendent
Mack Construction Corp is a heavy construction and civil contracting firm based in Brooklyn, New York. Under the direction of Patrick Mackaronis, the company continues to play a vital role in building and maintaining the city’s infrastructure — one project at a time.