Construction & Renovation
Our team provides renovation and retrofitting of existing buildings, new multi-million dollar complexes, in-plant modular projects, and service contracts for commercial and industrial clients.
Engineering and Design ServicesMechanical
We have the knowledge and experience needed to evaluate and recommend HVAC and plumbing requirements to meet your needs. We provide sales, service and repair for your mechanical system.
MechanicalMaintenance
At William E. Walter, we provide 24 hour emergency service, minimizing your critical equipment down time. We offer a wide range of programs that will meet or exceed your needs.
Maintenance ProgramsProcess Piping
We provide process piping and plumbing services to industries and commercial industry, offering fabrications services for projects of any kind, specific to your needs.
Process PipingEngineering & Design
A well designed facility needs to include a mechanical system that is energy efficient, encourages productivity, and ensures comfort.
Design and BuildAdvanced Mechanical Systems
We are a professional contracting firm that specializes in the innovative design, fabrication, installation, and service of the mechanical systems that make up today's dynamic workspaces. We offer the latest design, and service of today's most advanced mechanical building systems; process piping, medical and lab gas systems, air conditioning, heating, ventilation, and plumbing.
What We Do
Our goal is to always provide our customers with the highest quality mechanical systems while respecting your time and money.

Mechanical
We have the knowledge, experience, and resources necessary to meet all of your HVAC and plumbing...
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Maintenance Programs
Periodic maintenance is critical in maximizing the longevity of your mechanical system.
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Design and Build
Our experienced staff can design a system that delivers quality and customer satisfaction.
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Process Piping
Each client and every project is unique, we listen carefully to your specific needs and focus on...
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Engineering and Design
Our mechanical engineers and designers can plan, and design, lay out a system that will deliver...
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Industrial Service
Our EPA certified technicians provide you with excellent service, scheduled maintenance, and testing/certification...
Read moreOur Community
For the past 75 years we are investing in our surrounding areas. We are committed to improving the lives of those in our communities, through supporting charities and organizations in the Saginaw and Genesee counties. Through our support and volunteering we help improve the arts, health, and well being of those who live here.
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