Dilling Group

A Trusted Partner for the World’s Most Demanding Infrastructure

Dilling Group is the turnkey partner to design, fabricate, and deliver infrastructure that performs without compromise. From pre-project planning to fabrication to long-term service, we take ownership from start to finish – ensuring every detail aligns with our standard of excellence. Our ability to provide design, structural fabrication, skid fabrication, and spool manufacturing is what makes the process seamless from start to finish.

In the world of Mission Critical projects – where downtime, risk, and uncertainty carry real consequences – Dilling Group emerges as a trusted partner. We are continuously trusted by the biggest names in the business, with thousands of megawatts completed. We provide the expertise, reliability, and self-performed capabilities required to navigate your most demanding projects.

Whether we’re building the infrastructure that powers the digital economy or supporting operations that safeguard sensitive systems, we deliver solutions that are planned, built, tested, and trusted long before they arrive onsite.

Watch the Dilling Group Mission Critical Team in Action

Megawatt Tracker

4000

Megawatts completed

Why Dilling Group?

For nearly 80 years, Dilling Group has been the partner organizations rely on when performance matters most. We self-perform every phase of work and leverage our full “toolbox” of integrated services — mechanical, electrical, automation, controls, HVAC, and plumbing — to eliminate risk and complexity.

As part of Comfort Systems USA since 2018, we bring the financial strength, bonding capacity, and operational depth required to execute Mission Critical projects of any size, anywhere.

Our Services

Sketch & Design

Whether you arrive with detailed drawings or a concept on a whiteboard, our engineers invest the time and rigor required to develop a complete, coordinated scope of work — setting the project up for success before fabrication begins.

Fabrication Capabilities

With seven dedicated Mission Critical manufacturing facilities, we fabricate everything in-house — from pipe spools to structural supports, skids, and fully modularized systems.

Excellent Delivery

Our teams are highly trained, certified, and deeply committed to delivering exceptional mechanical, and industrial services — safely, precisely, and on schedule.

Ongoing Support & Service

Mission Critical systems don’t stop at commissioning. Dilling Group provides daily service and maintenance solutions, adapting to customer needs and earning the trust of some of the nation’s most demanding operators.

Testimonials

“Project after project, Dilling Group has proven to be a reliable and high-performing partner. Their team delivers consistent quality and professionalism across every phase of work — truly setting the standard for excellence in mission-critical construction. We continuously recognize their team in reflection of their outstanding work.”

Mission Critical General Contractor

“When we see Dilling Group on our project, we have complete confidence in hitting schedule milestones. Their ability to execute complex work with precision allows us to stay on plan and achieve successful startups without delay.”

Mission Critical End User

“Dilling Group’s leadership and communication are exceptional. Their transparency in preconstruction and flexibility during execution make collaboration seamless. They adapt quickly, stay aligned with our goals, and help us deliver mission-critical projects with confidence.”

Project Executive – Mission Critical

The Dilling Group Advantage

Dilling Group’s state-of-the-art manufacturing facilities allow us to fabricate and assemble systems in a controlled, safe, and highly efficient environment. By completing work upfront, we ship fully prepared, tested components directly to the site — reducing field risk, compressing schedules, and eliminating coordination headaches.

Mission Critical Facilities*

Dilling Group Locations

*Mission Critical facilities are relative to the city they are in.