John E. Green Company
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About John E. Green Company
John E. Green Company operates as a mechanical contractor serving Highland Park, Michigan, and surrounding communities. The company holds a 4.6-star rating compiled from 11 customer reviews, reflecting generally positive experiences among residential and commercial clients. Their service menu spans piping, plumbing, fire suppression systems, HVAC installation and service, custom fabrication, and design-build project delivery. Operating hours run Monday through Friday from 7:30 AM to 3:30 PM, with 24/7 emergency service available for urgent situations.
What distinguishes John E. Green from regional competitors is their scale and scope. The company appears in Engineering News Record rankings among the largest specialty contractors nationally, suggesting substantial resources for both residential service calls and large-scale commercial projects. Their portfolio includes in-house fabrication capabilities, allowing customized mechanical system components rather than relying exclusively on third-party suppliers. The firm maintains core operational values centered on safety, quality, integrity, and service delivery.
Customer reviews highlight specific technicians who handled particular situations. One reviewer described Bryan as personable and punctual during a condominium sprinkler backflow inspection, noting he explained the annual inspection requirements and offered reasonable pricing compared to competing contractors. Another reviewer referenced Marty positively, though without detailed context. These accounts represent the type of service experiences past clients have documented.
What Customers Say
Of 7 visible reviews, 5 carry five-star ratings while one describes a no-show for scheduled quotes. Positive feedback specifically names technicians Bryan and Marty, with one reviewer noting reasonable pricing compared to competitors.
Working Hours
| Sunday | Closed |
| Monday | 7:30 AM–3:30 PM |
| Tuesday | 7:30 AM–3:30 PM |
| Wednesday | 7:30 AM–3:30 PM |
| ThursdayToday | 7:30 AM–3:30 PM |
| Friday | 7:30 AM–3:30 PM |
| Saturday | Closed |
Services
HVAC Installation and Service
Heating, ventilation, and air conditioning system installation, maintenance, and repair for residential and commercial applications.
Plumbing
General plumbing installation and service covering water supply, drainage, and related mechanical systems.
Fire Suppression
Sprinkler systems, backflow prevention, and fire suppression infrastructure for commercial and residential buildings.
Piping
Comprehensive piping system installation for industrial, commercial, and residential mechanical infrastructure.
Custom Fabrication
In-house fabrication capabilities for customized mechanical system components rather than third-party supply.
Design-Build
Turnkey project delivery managing both design and construction phases for mechanical system installations.
24/7 Emergency Service
Round-the-clock emergency response for urgent mechanical, HVAC, and fire suppression issues.