You Deserve Experts.We Have Them.

At Ahern, we ensure your healthcare facility safety systems and fire protection systems are meeting specific industry demands.

Fire protection in hospitals and other healthcare facilities come with unique challenges due to their large size, complex construction, and the critical nature of their operations. Healthcare fire safety systems such as hospital fire alarm and control, fire suppression, and fire sprinkler systems, along with fire equipment safeguard more than your building, which is why it is crucial they receive the proper care to function as designed. Partnering with an experienced company that understands the needs of your property is key.

Ahern has performed design, installation, and service work in 90% of Wisconsin’s hospitals, among several others throughout the Midwest. Whether you are looking to relocate a few sprinkler heads or maintain existing systems, remodel a clinic, or construct a 300+ bed hospital, we will deliver expert guidance to steer your project to success.

Best of all, we can provide multi-trade services into one integrated solution from start to finish, giving you a single point of contact throughout your entire project. To maximize your building’s efficiency, we have the expertise and resources to service or create the most effective building control systems to integrate HVAC controls with a building's lighting, security and other features. 

From design, installation, maintenance, inspection and repair services for HVAC medical systems to hospital plumbing systems, we have experienced field teams and in-house fabrication resources to meet your project needs. 

To discuss how we can help you on your next project, contact Ahern today. 


Multi-TradeServices in Your Industry

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.

Multi-Trade Services

Ahern has 16 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.

Pipe Fabrication

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.

Preventive Maintenance

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

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.

Building Commissioning

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

Building Energy Solutions

Ahern employs over 70 NICET-Certified professionals, 10 licensed PEs, 8 LEED APs, and 4 EITs. Our energy solutions team will help you better manage your utility spending by identifying and recommending energy-saving alternatives.

Multi-Trade Fabrication

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

Industrial Services

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

Preconstruction Services

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.

Fire Protection & Life Safety

Last year, we provided life safety inspections to over 26,039 facilities. This includes fire extinguishers, kitchen systems, dry chemical systems, emergency lighting, fire alarm testing, and fire/smoke damper testing.