Call Now
Website
Call
Business Details
50+ Years
experience
Emergency
services
Your Trusted Commercial Mechanical Contractor
Established in 1925, Danboise Mechanical Inc. has evolved from a plumbing and hardware store into one of the Midwest's premier commercial mechanical contractors. Our fourth-generation leadership, certified by WBENC and the Supplier Clearinghouse, continues the legacy of founder Alex Joseph Danboise by delivering top-quality service with integrity. With 75+ professionals averaging over 30 years of experience, we specialize in HVAC, plumbing, and electrical systems for commercial, industrial, and institutional clients.

Our safety-first approach and 24/7 emergency response ensure reliable service across Michigan, supported by advanced technology and a fleet of service vehicles. We maintain strict adherence to safety protocols, code compliance, and client timelines while providing preventive maintenance programs that extend equipment lifespan and optimize system efficiency.
Services
HVAC Installation Plumbing Systems Electrical Services Emergency Repairs Preventive Maintenance Sewer Services Ventilation Solutions
Details
  • Year established: 1925
Highlights and features
  • 100 years of proven expertise in commercial mechanical systems
  • 24/7 emergency response with live support
  • WBENC-certified woman-owned business leadership
  • Proactive maintenance programs extending equipment lifespan
  • Integrated HVAC, plumbing, and electrical capabilities
Associations and certifications
  • WBENC
  • Supplier Clearinghouse
What people say
Professional technicians Courteous service Knowledgeable staff Prompt emergency response Long-term partnership
Services
HVAC Installation
Our HVAC installation services deliver precision-engineered systems for commercial and industrial facilities. Certified technicians handle boilers, chillers, VRF systems, and custom sheet metal fabrication. We ensure code-compliant installations that optimize energy efficiency while meeting strict manufacturer specifications for lasting performance.
Plumbing Systems
We provide comprehensive plumbing solutions including system design, backflow prevention, and emergency repairs. Our licensed professionals handle domestic water systems, stormwater drainage, and underground plumbing with advanced diagnostic tools. Preventive maintenance programs ensure code compliance and system longevity for healthcare facilities and industrial plants.
Electrical Services
Our licensed electricians deliver power distribution systems, lighting retrofits, and generator installations. We specialize in electrical panel upgrades, VFD systems, and equipment connections while maintaining strict safety protocols. Emergency services restore operations with rapid response times across Michigan's commercial and industrial facilities.
Emergency Repairs
Available 24/7 with live dispatch support, our emergency repair team responds to HVAC, plumbing, and electrical crises. Digital fleet management ensures rapid technician deployment while maintaining OEM-grade replacement parts. We minimize downtime through immediate diagnostics and temporary cooling/heating solutions during critical system failures.
Preventive Maintenance
Customized maintenance programs prevent unexpected breakdowns through scheduled inspections and performance optimization. Our technicians use advanced diagnostics for HVAC efficiency, plumbing code compliance, and electrical system reliability. Regular servicing extends equipment lifespan while maintaining optimal indoor air quality and operational efficiency.
People
Carol Danboise Gatewood
President
Fourth-generation leader with 30+ years of mechanical contracting experience. Certified by WBENC and the Supplier Clearinghouse, she drives innovation while maintaining family legacy standards for quality and integrity.
Amy Gatewood Gendjar
Vice President
Third-generation executive with expertise in commercial project management. Focuses on client relations and operational excellence while upholding the company's 100-year commitment to professional service standards.
Questions
What commercial HVAC services do you offer?
We provide complete HVAC solutions including system design, installation of boilers/chillers, VRF systems, and preventive maintenance programs tailored to commercial buildings.
Are your technicians available after hours?
Yes, our 24/7 emergency service ensures live support with rapid response times for HVAC, plumbing, and electrical crises.
Do you service all types of plumbing systems?
Our licensed plumbers handle all commercial systems including backflow prevention, stormwater drainage, and underground plumbing for healthcare and industrial facilities.
What electrical services do you provide?
We offer power distribution systems, lighting retrofits, generator installations, and emergency electrical repairs for commercial and industrial clients.
How do preventive maintenance programs work?
Scheduled inspections and performance optimization extend equipment lifespan while maintaining code compliance and energy efficiency through regular system diagnostics.