Experts ForEvery Project

At Ahern, we provide facilities in Wisconsin with all our multi-trade services. However, we also offer Fire Protection & Pipe Fabrication Services outside of Wisconsin.

Ahern has 17 office locations throughout the Midwest. We offer fire protection expertise in all geographies, as well as new installations throughout the U.S.; mechanical installations and service within Wisconsin; and pipe fabrication work in the U.S. and beyond.

At Ahern, your pipe fabrication project is our specialty. We fabricate and ship according to project-specific priorities, and we assist in all aspects of system layout, including budget planning and takeoff preparations. Ahern offers pipe fabrication services and also provides welded piping for a variety of systems.

Whether for the immediate distribution of clean water or the safe transportation of unwanted waste, quality plumbing is a key component of any building.

Ahern offers mechanical preventive maintenance agreements (PMAs) and fire protection system and equipment inspection services. Mechanical PMA programs can help ensure your systems are operating efficiently and can help to reduce costly emergency repairs or replacements. Fire protection system...

Ahern has been designing, installing, and servicing HVAC systems since the company's inception over a century ago. Our team of professional engineers, licensed designers, experienced project managers, and skilled foremen can bring your next HVAC project from idea to reality.

Building controls – also called Building Automation Systems (BAS), Building Automation and Control Systems (BACS), or Building Control System (BCS) – have quickly become vital in maximizing efficiency, sustainability, and profitability in today’s buildings.

Ahern has the expertise needed to ensure your systems are functioning as intended to meet your facility goals.

Ahern employs over 120 NICET-Certified professionals, 15 licensed PEs, 3 LEED APs, and 5 EITs. Our energy solutions team will help you better manage your utility spending by identifying and recommending energy-saving alternatives.

Installation of mechanical, electrical, and plumbing systems can require meticulous attention to detail and precise coordination with multiple trades.

We offer a full range of solutions for industrial and manufacturing process environments including installation, repair and replacement, machine automation, and fabrication.

As a preconstruction adviser, Ahern’s knowledge and experience benefit general contractors, architects, and building owners through early involvement in system selection that meets the end user's goals and budget.

Last year, we provided life safety inspections to over 29,600 facilities. This includes fire extinguishers, kitchen systems, dry chemical systems, emergency lighting, fire alarm testing, and fire/smoke damper testing.