About Us

Transforming Communities Since 1987

Associated Construction Engineering (ACE) was established in 1987 and has become one of the largest mechanical and electrical professional consulting firms in the Northwest region. With offices across Montana and into Wyoming, we do more than create systems, we transform communities – bringing innovative solutions to schools, hospitals, local businesses, apartment complexes and more.

Our Services

Your building is our business.

ACE is homegrown and so are our services. Together, we encourage creativity, prioritize collaboration, and deliver excellence for various commercial, industrial and residential building projects.

Mechanical

Keeping you cool and warm all year long.

Plumbing

Water supply, drainage and gas systems.

Electrical

Lighting that is both functional and safe.

Fire Protection

Protect your property and ensure code compliance.

Energy Analysis

Analyze energy flow and increase efficiencies.

Special Systems

Security, communications, audiovisual and more.

Careers

Design Your Future

At ACE, we take pride in building on experience and fostering the next generation of designers and engineers. As a team member, you’ll learn, you’ll grow, you’ll be challenged – but more than that, you‘ll be a part of something great.

Our Work

We are innovators.

We design solutions.

We create stories.

The Reed

University of Providence

Winifred School

Fort Peck Tribal Wellness

North American Indian Hall – MSU

Our Home

We put environment first.

In collaboration with the U.S. Green Building Council and the Leadership in Energy and Environmental Design (LEED) building certification system, ACE is dedicated to championing everyday solutions that drive real-world impact.