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Cooling &
Heating Services

Since 1919





Since 1919

Main Enterprises offers 24-hour emergency services, preventative maintenance, replacements, air conditioning/heating and some refrigeration repairs. With our state-of-the-art equipment and technicians who deploy a high level of knowledge-based troubleshooting and resolutions, we hit the mark with a timely resolve to any size project!


Occupying almost 25,000 square feet is our duct fabrication facility equipped with high speed machinery that will build any air duct system you can imagine quickly and affordably but with quality. We welcome jobs of all sizes and scopes. So whether you simply need equipment made, or you need a job custom designed, built, installed, and maintained from start to finish, Main Enterprises, Inc. is your go-to.

Construction Services

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Whether it be preparing an estimate or a full blown engineered mechanical design, our in-house Engineers & Estimators understand that preparation, historical data, energy incentives and new innovations must be considered in each step of the process. Our first goal is to always apply common sense design practices and culminate an efficient and cost-effective project. 

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Who We Are

About Our Company

Main Enterprises, Inc (MEI) is a fully equipped HVAC service and installation company headquartered in Stratford, Connecticut. Emerging as one of Connecticut’s original mechanical service and contracting companies, Main Enterprises applies modern technologies with classic values, and has done so for over 100 years. 

The benefits of partnering with Main Enterprises includes our ability to offer and directly manage a variety of in-house services such as a 24-hour service department, a sheet metal and mechanical pipe fabrication facility, our design/build staff coupled with our expert installation teams. These services are supported by knowledgeable back-office management staff who coordinate and provide the utmost professional customer service and quality in their work.


Year of Establishment



Our Services

We Offer a Range of Services to Meet Your Project's Needs

Main Enterprises is your one-stop-shop for all your project's HVAC and Plumbing needs. From initial planning to drawings to ongoing Preventative Maintenance plans, MEI is here for you from beginning to end.



24-Hour Emergency Service

Design & CAD Drawings

HVAC Repair

Special Projects

HVAC Replacement


Commercial Construction

What We do

Our Projects

Our work includes projects from Municipal, Institutional, Commercial and More! Ranging from Universities to Grocery Stores we specialize in what your project needs.

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