Our Services

Comprehensive Infrastructure Solutions

From new water treatment plant construction to emergency pump station repairs, DMI delivers the full spectrum of water and wastewater infrastructure services with a skilled union workforce and over 60 years of experience.

Our Core Expertise

Water & Wastewater Construction

Dahme Mechanical is a trusted leader in water and wastewater infrastructure construction, providing innovative and sustainable solutions for both municipal and private entities.

$2.3M average project size

Capabilities

  • New water treatment facility construction
  • Wastewater treatment plant expansions
  • Sanitary lift stations and stormwater pump stations
  • Force mains and gravity sewer installation
  • Equipment replacement and upgrades
  • Complex retrofits and capacity expansions
  • SCADA and control systems installation
  • Combined heat and power (CHP) installations
  • Solids handling facility construction

Large-Scale Facility Work

Commercial Plumbing

We are dependable experts with the skills to address a large array of commercial plumbing and commercial HVAC projects, from new construction to complex renovations.

48 active licenses across multiple jurisdictions

Capabilities

  • New commercial construction plumbing
  • Large-scale renovation plumbing
  • Medical gas systems
  • Commercial HVAC systems
  • Industrial mechanical work
  • Backflow prevention systems
  • Fire suppression plumbing connections

Turnkey Project Delivery

Design/Build Solutions

Our design/build approach provides a single point of responsibility for municipalities and private entities, streamlining project delivery from concept through commissioning.

Single point of responsibility from concept to completion

Capabilities

  • Turnkey project delivery for municipalities
  • Integrated design and construction services
  • Value engineering and cost optimization
  • Permit coordination and regulatory compliance
  • Project scheduling and management
  • Commissioning and startup support

Industrial Piping Systems

Process Piping

Specialized process piping solutions for water treatment, wastewater treatment, and industrial applications, delivered by experienced union pipefitters.

Union Pipefitters Local 597

Capabilities

  • Water treatment process piping
  • Chemical feed systems
  • High-purity water systems
  • Stainless steel and specialty alloy piping
  • Pipe fabrication and installation
  • System testing and certification

Ongoing Facility Support

Plant Maintenance

Comprehensive maintenance programs to keep your water and wastewater treatment facilities operating at peak efficiency, minimizing downtime and extending equipment life.

30+ year client relationships

Capabilities

  • Preventive maintenance programs
  • Equipment replacement and upgrades
  • Operational support and troubleshooting
  • Emergency repair response
  • Facility condition assessments
  • Performance optimization

Rapid Response When It Matters

Emergency Services

When critical infrastructure fails, every minute counts. Our experienced crews provide rapid-response emergency repairs to minimize service disruptions and protect public health.

Rapid response for critical infrastructure

Capabilities

  • 24/7 emergency response for existing clients
  • Critical infrastructure failure repair
  • Pump station emergency service
  • Pipe break and leak repair
  • Temporary bypass pumping
  • Emergency equipment procurement

Service Area

DMI serves municipalities, sanitary districts, and private entities throughout Northern Illinois and Northwest Indiana. Our project portfolio spans from the Chicago metro area to communities across the Fox Valley and beyond.

Arlington HeightsNapervilleYorkvilleDeKalbHuntleyPingree GroveNorth AuroraOswegoChicagoDowners GroveAddison
75
Total Projects Since 2022
31
Currently Active
94/100
BuildZoom Score

Have a Project in Mind?

Whether you need a complete water treatment facility or a critical pump station repair, our team is ready to deliver.