Mission Critical & Data Intensive Facilities

AllertonFox delivers construction services for mission critical and data intensive environments where system reliability, uptime, and execution certainty are non-negotiable.

Mission critical construction in New York is not a category — it is a constraint. Every project carries operational risk. Every trade sequence depends on what cannot be touched, when systems must stay live, and how much the building can absorb while the work happens around it.
AllertonFox is built for those conditions.

The New York metropolitan area concentrates a particular kind of construction challenge: occupied hospitals, active data centers, operating aviation facilities, and infrastructure-dense buildings where there is no such thing as a clean slate. Work happens in phases. Shutdowns are planned weeks in advance. Every delivery, every trade, every safety requirement gets coordinated against a facility that never stops running.

That is the environment AllertonFox was designed for. Our teams manage the full complexity of live-environment construction, trade sequencing, logistics planning, shutdown coordination, documentation, and safety, so operations continue while the work moves forward.

Mission-Critical and Data Intensive Construction Services

We provide Construction Management and General Contracting services across the New York Tri-State area, with deep experience in:

  • MEP-intensive fit outs and infrastructure upgrades
  • Mission critical interiors for healthcare, aviation, and data-intensive facilities
  • Occupied and constrained-site builds where uptime is non-negotiable
  • Schedule-driven delivery in secure and infrastructure-limited environments
Technology inside a data center or data intensive facility

Mission Critical & Data Intensive Facilities

  • Manhattan, New York
Michael D. Seidner, MD

I am writing this letter of commendation to you on behalf of Joe Corbo who has been the project manager of our new medical office at 10 Forest Ave. in Paramus.  I have dealt with many GCs over the years but none have been as responsible, receptive and helpful as Joe throughout this entire process. He not only took  the time to show me around and explain all the plans to me when I showed up unexpectedly on one occasion but also continued to call and update me of his own accord on the progress of the office construction.  I could also see by his interactions with the workers his high level of expectation that each job be done perfectly.

You are indeed fortunate to have someone like Mr. Corbo in your employ. He represents your company very well.

Mike Miksad
Associate Vice President - Facilities Management & Support Services

I’ve been utilizing AFC in both a CM & GC rolls for many years. Jamie is one of the best construction professionals I’ve ever worked with. Jamie and his Team take to lead with everything from pre-construction services to securing DOH approval & COs.

Working in health care is difficult at best. Jamie and his team understand the importance of getting all of the key players ( Nursing, safety, infection prevention, facilities, EVS, etc) involved with each project. They handle all of the coordination and communication and keep me in the loop every step of the way, which is a tremendous benefit. Jamie does not know the word “No” and always finds a way to get the job done on time and on budget. AFC are true professionals on every level and it’s a pleasure to work with them.

Mary Carr
Partner of Altaflow

I met Terry Allerton in the early 1990s when my father hired him to build his dream facility to better service his plastic extrusion business customers. We could not have been happier that we made that decision.

It was a design build, guaranteed price relationship. How pleasantly surprised were we that the project was completed on time and within the budget constraints we had planned for. I recently expanded my business and needed to find and retrofit another facility. Of course, knowing and trusting Terry, approached AllertonFox for their services. They not only helped me select an existing facility that would accommodate our needs. Once again the project was completed within the time constraints that were committed and our financial requirements for the build out.

I would have no hesitation recommending AllertonFox to any company that is looking for a hands-on relationship and personal commitment to completion and financial requirements that is so difficult to find in today’s environment.

Hans P. Erdenberger AIA, NCARB
President & Managing Principal of Environetics

I have known and worked with Terry Allerton since the late 1980s. We were both involved in an office and industrial project where I was the architect and he was the contractor. Terry and his team took this stalled project, which was roughly 20 percent over budget, and through clever value engineering was able to bring the project back online without compromising the integrity or architectural character of the building in the end.

This building project and many more like it that Terry and his staff have handled over the years has made our life easier. Terry’s enthusiasm and attention to detail has been infectious with my staff and helped to take them to a higher level of understanding and knowledge relative to construction costs and construction procedures.

I highly recommend AllertonFox Construction for your next construction project.

David Barton
Founder of TPML Gym

I leased an existing vacant 35,000 sq. ft. gym facility in Manhattan. I hired AllertonFox to assist with pre-construction services and project planning and then hired them knowing they could deal with the difficulties we were sure to encounter with the existing mechanical and design challenges.

Having built facilities in Miami, Las Vegas, Los Angeles, and multiple locations in Manhattan this was by far the most challenging project yet given the financial objectives and scheduling challenges.

I truly believe AllertonFox Construction went beyond the actual services required and had a sincere commitment to my facility and my needs as an owner.

I appreciated the hands-on relationship I had with Mr. Allerton and Mr. Fox and their passion for my project. I would highly recommend their services to any owner who is looking for and who appreciates a hands-on relationship with the owners of a construction company and who will use their knowledge and experience to ensure an owners satisfaction.

I would certainly recommend them and I WILL use their services again in the future as I add new facilities to my portfolio.

Jack McHugh, Vice President
Operations at Specialized Fire & Security, Inc.

We recently completed the renovation of a large high tech gym in Manhattan with AllertonFox Construction. It was a great experience. The team at AllertonFox is organized and professional and strong on controls and procedures. They obviously benefit from their many years of experience in all types of construction.

Daniel R.
R2NET

A few years ago hired AllertonFox to push through some smaller expansions. We were immediately impressed by their professionalism, timeliness and workmanship. When we decided to move to a 62,000SF space we knew that they would be our perfect partners. They executed a fantastic build out, on time and within budget.

Lisa Conza, Real Estate Manager
CBRE | Property Management

Allerton Fox is a first-class organization. They truly care about their clients and provide nothing short of excellent service. They are extremely professional, friendly and always put their clients first.

Planning a Mission Critical or Data Intensive Project?

Engage AllertonFox early to reduce risk, control schedule, and execute safely in live environments.

START THE CONVERSATION