Business Details
50+ Years
experience
Emergency
services
Trusted Plumbing and Mechanical Contractors in Chicago
Since 1946, Great Lakes Plumbing & Heating has been a trusted provider of comprehensive mechanical solutions in Chicago and its surrounding areas. Our expertise spans commercial plumbing, mechanical systems, fire protection, and specialized design/build projects, delivered with a commitment to quality, safety, and innovation. With decades of experience, we prioritize understanding client challenges to deliver customized solutions that meet exact specifications. Our team invests in cutting-edge technology and continuous training to ensure systems operate at peak efficiency. We maintain strong client partnerships through transparent communication, proactive maintenance plans, and 24/7 emergency service.Our track record includes landmark projects across healthcare, education, data centers, and residential sectors. As a family-owned business, we uphold standards of reliability and craftsmanship that have earned us long-term client relationships. Our service extends beyond installation to include ongoing support, ensuring systems remain functional and compliant. We take pride in solving complex challenges through practical, innovative approaches tailored to each project's unique requirements. This dedication to excellence has solidified our reputation as a leading mechanical contractor in the Midwest.
Services
Plumbing Systems
Mechanical Contracting
Fire Protection
Design/Build Solutions
Emergency Repairs
Preventive Maintenance
HVAC Services
Special Projects
Details
- Year established: 1946
Highlights and features
- We offer 75+ years of Chicago-specific mechanical contracting experience
- Our team provides 24/7 emergency service across the metropolitan area
- We implement customized maintenance plans to prevent system downtime
- Our engineers use cutting-edge technology for precision installations
- We maintain 25+ year partnerships with major commercial clients
What people say
Technical expertise
24/7 availability
Reliable service
Long-term partnerships
Innovative solutions
Services
Plumbing Systems
Design and installation of commercial plumbing systems across Chicago. Our team delivers code-compliant solutions for new construction and retrofit projects. We specialize in complex piping configurations and high-efficiency water systems.
Fire Protection
Comprehensive fire protection services including system design, installation, and maintenance. Our certified engineers ensure compliance with safety standards through regular inspections and emergency repair capabilities across commercial properties.
Mechanical Contracting
Mechanical contracting for heating, ventilation, and cooling systems. We implement energy-efficient solutions with ongoing maintenance programs to optimize system performance and indoor air quality in commercial buildings.
Design/Build Solutions
Integrated design/build services for specialized mechanical projects. Our approach combines engineering expertise with construction management to deliver tailored solutions for complex plumbing and HVAC challenges.
Emergency Repairs
Around-the-clock emergency repair services for plumbing, mechanical, and fire protection systems. Our rapid response team addresses critical issues with minimal disruption to business operations.
People
George W. Treutelaar
Chairman
Industry leader with decades of experience guiding mechanical contracting operations. Oversees strategic direction while maintaining commitment to quality standards established by the family-owned business since 1946.
Justin Treutelaar
President, Business Development and Strategy
Drives business growth through strategic partnerships and client relationship management. Focuses on expanding service capabilities while maintaining the company's core values of reliability and technical excellence.
Matt Treutelaar
President, Operations
Manages daily operations with emphasis on project execution and resource optimization. Ensures timely delivery of complex mechanical projects while maintaining safety and quality standards.
John Devine
Executive Vice President, Operations
Oversees large-scale project implementation with 30+ years of mechanical contracting experience. Focuses on operational efficiency and client satisfaction through effective project management practices.
Jerry Graupman
Vice President, Fire Protection
Licensed professional engineer specializing in fire protection systems. Leads technical teams in designing and maintaining life safety systems that meet evolving regulatory requirements across commercial sectors.
Questions
What services does Great Lakes Plumbing and Heating offer?
We provide plumbing, mechanical contracting, fire protection, design/build solutions, and 24/7 emergency services for commercial and residential clients.
How long has the company been in business?
We've served Chicago since 1946, maintaining family ownership and operational excellence across three generations.
Do you offer emergency services?
Yes, our emergency response team operates 24/7/365 for plumbing, mechanical, and fire protection system issues.
What industries do you serve?
We work with healthcare facilities, data centers, educational institutions, hospitality venues, and commercial developers across the Midwest.
How do you ensure project quality?
Through certified technicians, regular maintenance programs, and investment in advanced mechanical technologies and training.
Can you handle complex projects?
Our special projects division manages technically challenging assignments with customized solutions for unique mechanical requirements.
