Reliable HVAC installations and service since 1997. Creating comfortable environments for work, life and recreation.

2,000 +

Client locations in the metropolitan area

12,000 +

Completed service calls per year

15,000 +

Customer assets managed under service contract

10,000,000 +

Square feet of office space under service contract

Our Services


Retrofitting outdated machinery and systems will often reap savings in expense and in energy consumption.  Ask us how we can help your facility.

Energy Audits

Using emerging technology and IOT sensors, we are able to detect potential issues that can be resolved quickly and efficiently, that potentially can lower your overall costs.


Our state of the art automated scheduling, optimized dispatching systems, and after hours emergency notification system provides customers the fast response time needed to get systems back online with little to no interruption.


Maintenance and routine servicing of equipment can extend their life and improve efficiency.  We concentrate in the commercial and industrial segments of our region including Class A Commercial Office Buildings.


We provide emergency service and response to our clients, all part of our commitment to customer service.  Clients can receive emergency service 24 hours a day, 365 days a year on all makes and models of equipment.


We design and build energy efficient systems that will provide comfort and savings.  Get exactly what you need.

Why MJI?

We’ve got the tools

Our trucks and warehouse are stocked with the tools and parts necessary to service most every routine maintenance situation.

Great Support

Our clients have access to our FM Anywhere app to enter your service requests and check the status, 24/7!  Full transparency, wherever, whenever.

Certified Experience

We are fully trained, licensed and insured in Suffolk County, New York.  We always strive to improve our technical performance.

Lifetime Partner

Work with us and you’ll have a committed partner.  MJI will be there for you whenever you need us – today, tomorrow and beyond.

Competitive Pricing

Our pricing is fair, our commitment is our value proposition.  When you work with MJI, you get a service partner who’s got your back.

50 Years Experience

Experience delivers value, unparalleled capabilities, knowledge and insight one can only acquire through years of servicing customers.

© Copyright 2020 - Michael James Industries