what we do

the federal government construction specialists

As the premier SDVOSB design-build construction firm based in Chicago, ONeill is optimized to provide construction services solutions exclusively for the United States Federal Government.

Since 2007, ONeill has completed projects nationwide for our country’s most critical infrastructure. Our processes are built specifically to meet the stringent requirements of federal contracting and services tailored to support the unique needs of each of its agencies.

We have built a team of professionals experienced in all trade disciplines. From renovations of nationally registered historic buildings to installations of state-of-the-art technology within our military bases, ONeill is uniquely qualified and well-equipped to tackle any challenge.

Design-Build Work at NSGL

DESIGN-BUILD

We ensure optimal outcomes through single-source expertise.

ONeill offers the government a comprehensive, single-source solution from design through startup and commissioning, simplifying communication and project execution. Our teams are equipped to meet your evolving needs efficiently and cost-effectively.

GENERAL CONTRACTING

Our experience stretches across all phases of a project, from preconstruction to completion, commissioning and start-up.

ONeill operates as a specialized project management team focused solely on delivering the highest quality projects for the federal government. We carefully select our project teams based on their experiance and expertise with the specific requirements, policies, and procedures of each contracting agency, along with their track record of meeting budget, timeline, and quality assurance objectives for our federal clients.

ONeill Quality Control Meeting
ONeill SP Concrete Footers

SELF-PERFORMED TRADE WORK

Our integrated approach is enhanced by our in-house experts and self-perform capabilities

With a dedicated in-house workforce of skilled craft workers, we remain flexible and responsive to the challenges of the most complex projects. By self-performing key project elements, we not only save valuable time but also uphold the highest standards of safety and quality throughout the process.

dedicated to

excellence

in all we do

Site supervision

  • The professionalism, meticulous attention to detai, and superior communication skills of ONeill’s Site Supervisors help ensure that all work on site aligns with the owner’s objectives meets the highest standards of quality and safety.

    Our Site Supervisors coordinate the work of all subcontractors, self-performance crews, and other construction services providers. They drive the project schedule, ensuring that the site remains operational, and all projects are completed on time.

Team Leadership

  • Behind every great project stands not just one company, but a network of specialized subcontractors working in harmony.

    Like a well-conducted orchestra, each play their part at precisely the right moment. Managing subcontractors isn't just about delegating tasks - it's about creating a system where every piece fits perfectly.

    Our approach to subcontractor management is truly based on partnership.

    Simply put, we build stronger relationships with our subcontractors to deliver better results for our clients.

Quality Control

  • Total Quality Management - it is the backbone of our approach to managing aspect of our business, including Construction Quality Assurance and Control.

    Without the stringent quality control measures ONeill puts in place, construction projects can face numerous issues, such as structural failures, increased costs, and delays.

    The procedures and techniques we use ensure that every project meets all predefined quality standards and specifications. We encompass everything from design review, the inspection of materials and workmanship, to the verification of completed work against the project’s design and specifications. Our approach to quality control prevents errors, reduces risks, and ensures that all owner’s goals and objectives are met.

Education

  • Construction isn’t just about building structures – it’s about improving communities, driving economies, and setting the foundation for future generations. From the buildings we work in, to the roads we travel on, construction professionals are the backbone of society.

    As industry evolves, so does the need for specialized knowledge. Robust training and education has never been more important. ONeill’s Center For Professional Excellence ensures our team is equipped to meet your toughest challenges.

    Modern construction requires a blend of precision, creativity, and innovation. From upgrading medical facilities, to repairing critical infrastructure, mastering these skills requires hands-on experience, technology, and ongoing education.

    We lead the industry by leveraging advanced tools and technology to navigate the complexities of modern builds. Our technical training, coupled with real-world practice through on-the-job learning, is how we truly bridge the gap between classroom theory and field expertise.

    By integrating our legacy of craftsmanship with cutting-edge technology, we equip our teams to solve new challenges, increase their capabilties, and refine their area of expertise. Our employees are not just taught how to build; but to understand how to build smarter, faster, and more sustainably.

Safety & Health

  • We develop, implement, and enforce comprehensive safety plans, conduct rigerous site inspections, and provide extensive worker training programs.

    Our Construction Safety and Health Professionals are tasked with ensuring that all aspects of job site safety are addressed, from the proper use of personal protective equipment (PPE) to the maintenance of safe machinery and the enforcement of safe work practices. They stay informed of the latest safety regulations and standards, and are responsible for reporting accidents, conducting incident investigations, and analyzing data to prevent future incidents.

Trade Performance

  • We know the value of self-performance capabilities.

    Our in-house tradeworkers allows us to maintain greater control over critical aspects of a project, from design and planning to construction and completion.

    By handling specialized work like infection control, metal work, roofing, windows, and various finishes ourselves, we streamline the process, reduce coordination issues, and ensure a higher level of quality control.

our commitment to Quality

ONeill provides construction services of the highest professional standards. We perform these services to the benefit and satisfaction of our clients. When we solve our client’s problems, execute our work efficiently and safely, and operate with utmost integrity, we are successful by every definition. 

We operate with the objective of consistantly performing above all industry standards. To that end, we expect every member of our team to guide every decision and perform every task in a way that:

  • Solves our customer’s problems correctly, expiditously, and completely

  • Meets the highest standards of workmanship, ethics, and professionalism

  • Makes our customer’s job more efficient, less challenging, and more enjoyable

  • Advances the reputation of our company, the facility we are operating in, and the agency we are working for

  • Life Safety Systems

  • Mechanical Upgrades

  • Fire Sprinkler Systems

  • Office Spaces

  • Nurse Call Systems

  • Critical Power Generation

  • Laboritories

  • Cold Storage

  • Secure Access Systems

  • Pharmacies

  • Landscaping

  • Boiler installation

  • Civil Construction

  • Roof Restoration

  • Air Traffic Control

  • Emergency Repair

  • agricultural research buildings

  • Sanitary Sewers

  • Fall Protection Systems

  • Steep Slope Roofing

  • Underground Structures

  • Metal Restoration

  • ATC Radar Structures

  • Hospital Renovation

  • High-Security Protection

  • ADA Compliant Facilities

  • Sustainability Solutions

  • Custom Metal Work

  • Bird Netting

  • Patient Lift Systems

  • Air Filtration

  • Infection Control

  • Abatement

  • Air Handling Units

  • Demolition

  • Facade Renovation

  • Interior Build-Out