Over 1 billion square feet

Using only time-tested, field-proven roofing products, we've installed well over one billion square feet of roofing. Continue Reading →

Low-slope roofing since 1923

Tri-State/Service is a regional specialty contractor known for technical and engineering expertise in all types of low-slope roofing systems. Continue Reading →

Steep-slope roofing craftsmen

Tri-State/Service Group companies have the specialized experience required to meet construction, safety, and maintenance challenges of steep-slope roofs. Continue Reading →

Anything out of metal

Our craftsmen design, lay out, measure, fabricate, and install sheet metal products to meet your need for just about anything to be made out of metal. Continue Reading →

Install, maintain, repair

We are approved by all major roofing material manufacturers to install, maintain, repair, and replace their products. Continue Reading →

Architectural metal

From wall cladding, columns, and panels to flashing, coping, cupolas, cornices, fascia, roofing, and more--we fabricate and install any architectural metal. Continue Reading →

HVAC / Mechanical

From comfort systems to process piping, we offer design, engineering, fabrication, and installation of simple parts or total systems, plus service. Continue Reading →

Landmark decisions

Tri-State/Service projects include historic landmarks and buildings requiring specialty construction experience with traditional materials like slate, tile, and copper.

Financial strength

The Tri-State/Service Group has the bonding capacity, insurance coverage, and financial stability to handle even the largest projects.

Tough jobs

You want a roofing contractor with experience to take on tough jobs with demanding specs and difficult conditions. Tri-State/Service Group is up to the challenge.

Yes, we can fix that.

Finding and fixing leaks: our specialty. Call any time: 24/7/365. With over 90 years of experience, we know where to look when diagnosing troublesome leaks. Continue Reading →

Metal structures

Custom-engineered enclosures or pre-engineered metal buildings, Tri-State/Service Group can help. We also repair and maintain metal buildings: replacing damaged panels, compatible coating application, retrofit roofing systems. Continue Reading →

Craftsmanship: alive and well

Our roofing professionals are supported by an in-house metal fabrication shop and craftsmen, assuring a water-tight fit for your important project. Continue Reading →

Pro-action trumps re-action.

With timely roof inspections, we'll clear drains, and can find and fix potential leaks before they damage interiors, cause energy losses and potentially weaken the roof structure. Continue Reading →

Customer service

Responsive from day one--from initial inquiry to installation and beyond, our customer service distinguishes us from less experienced roofing contractors. Continue Reading →

The right people in place

We recruit, train, mentor, and support only the very best people: designers, engineers, estimators, mechanics, superintendents, foremen, and laborers. Continue Reading →

Coating options

Advances in roof coating formulations have broadened their use and effectiveness in a greater range of applications. Continue Reading →

Emergency repairs

Call any time, any day. Our group can respond to emergency leaks and secure your property against further harm. Continue Reading →

Multiple locations. One goal.

Complete customer satisfaction is our goal. We have a reputation for customer service, quality, and dependability in each of our market areas. Continue Reading →

Energy stars

From determining appropriate insulation amounts to reflective roofing membranes and sustainable materials, we'll show you ways to improve your building's efficiency and lessen environmental impact. Continue Reading →

Work hard. Work safe.

When you choose the Tri-State/Service Group, you're partnering with an experienced and safe contractor. Our Workers Compensation experience modifiers are among the best in the industry. Continue Reading →

In the news

News of note for building owners, facility managers, contractors, architects, project managers, and engineers Continue Reading →

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Time-tested, field-proven. Since 1923.

Technical and engineering expertise in all types of roofing systems, sheet metal fabrication, and HVAC/mechanical systems

Anything out of Metal – Yes, we can make that: fume control ductwork

Posted on August 5, 2025 by anne

This ductwork is part of an industrial fume control system for a chemical manufacturing company.

Our team field-measured, fabricated, and installed this offset Y ductwork component for a precise fit.

Our metal fabrication experts work regularly with industries to improve processes, safety, material handling, and access.

What can we design, build, and install for you?