Main Enterprises

Main Enterprises Main Enterprises is one of Connecticut’s largest major mechanical contracting companies. Oppedisano.

With a skill and a strong conviction for a bright future, Louis Oppedisano set off for America in the early 1900’s, opening his first “tin shop” in Southwestern Connecticut in 1919. The lineage of successes attributed to these character traits has found its way through three generations and almost 100 years to current CEO Kenneth J. By staying ahead of the curve, applying new technologies and refu

sing complacency, Main Enterprises has emerged as one of Connecticut’s largest major mechanical contracting companies. Our company is much like the product that it sells: a diverse array of moving parts orchestrated to simultaneously produce an intended end result with the utmost efficiency. The benefits of partnering with Main Enterprises include our ability to offer and directly control a myriad of in-house services such as
a 24-hour service department, a sheet metal and mechanical pipe fabrication facility, our design/build engineering staff and an expert installation group. These services are supported by knowledgeable back-office management staff who coordinate and provide world-class customer service.

05/25/2026

Today, we pause to honor and remember the men and women who gave their lives in service to our country.

Their sacrifice is the reason we have the freedom to build, create, and serve our communities every day.

As we spend time with family and reflect on what matters most, we remember those who made it possible. May we never forget what was given so we could live the lives we have today.

We honor you. We remember you. We Thank you.

Legacy isn’t claimed. It’s documented.Long before the trucks, the shop, the projects, and the reputation—there was a cra...
05/20/2026

Legacy isn’t claimed. It’s documented.

Long before the trucks, the shop, the projects, and the reputation—there was a craftsman with a trade, a vision, and the determination to build:
He was a Sheet Metal Worker.

Those three words, documented more than a century ago, reflect the trade that laid the foundation for Main Enterprises in 1919.

Over 100 years later, the craftsmanship, grit, and values this company was built on remain unchanged.

Some companies are started.
Others are built on a foundation of legacy.

Main Enterprises Inc. — Since 1919

📞 (203) 334-3419
🌐 www.mainhvac.com

📦 Need Fabrication Only? We’ve Got You Covered.Not every job needs a full mechanical contractor. Sometimes, you just nee...
05/13/2026

📦 Need Fabrication Only? We’ve Got You Covered.

Not every job needs a full mechanical contractor. Sometimes, you just need a shop you can rely on.

Main Enterprises supports:
• Mechanical contractors
• General contractors
• Facilities teams

With fabrication that’s:
✔ Precise
✔ Consistent
✔ Built to spec — every time

From single projects to ongoing support, our in-house shop helps you stay on schedule and deliver with confidence.

📞 (203) 334-3419
🌐 www.mainhvac.com

If your system fails in July, it’s already too late.☀️ If your HVAC system isn’t ready now, it won’t survive peak summer...
05/06/2026

If your system fails in July, it’s already too late.

☀️ If your HVAC system isn’t ready now, it won’t survive peak summer…

Before the heat hits full force, your HVAC system needs to be ready.

A pre-summer maintenance check ensures:
✔ Maximum cooling efficiency
✔ Reduced risk of breakdowns
✔ Lower operating costs

Main Enterprises creates custom maintenance plans designed for your building’s specific needs—no guesswork, only results.

☀ Beat the rush—book your service before peak season.
📞 (203) 334-3419
🌐 www.mainhvac.com

🔧 Not Every Job Is Standard — That’s Where Fabrication Matters, and where Main Enterprises comes in.No two buildings are...
04/30/2026

🔧 Not Every Job Is Standard — That’s Where Fabrication Matters, and where Main Enterprises comes in.

No two buildings are the same and standard parts don’t always fit real-world conditions.

Our in-house fabrication shop allows us to create:

• Custom ductwork
• Specialty fittings
• Unique system components
• Job-specific solutions

Instead of forcing a system to fit the building — we build the system to fit the project.
That’s the Main Enterprises difference. Call today!

📞 (203) 334-3419
🌐 www.mainhvac.com

⚙️ Backflow Testing Season Is Here — Are You Compliant?Across Connecticut, many municipalities require annual backflow t...
04/28/2026

⚙️ Backflow Testing Season Is Here — Are You Compliant?

Across Connecticut, many municipalities require annual backflow testing — and spring is when most deadlines hit.

Missing it can result in:
• Fines
• Failed inspections
• Health risks
• Liability exposure

At Main Enterprises, our Plumbing Division provides certified testing, documentation, and scheduling support — so nothing slips through the cracks.

In Connecticut, compliance isn’t optional. It’s enforced and Main Enterprises can help. Call Today!

📞 (203) 334-3419
🌐 www.mainhvac.com

📝 Before You Approve That HVAC Project… Ask These 6 QuestionsNot all mechanical projects are created equal — and the wro...
04/22/2026

📝 Before You Approve That HVAC Project… Ask These 6 Questions

Not all mechanical projects are created equal — and the wrong approach can cost far more over time than it saves upfront.

Before moving forward, make sure you have clear answers to:

• Is the system properly sized for the building and usage?
• What will ongoing maintenance and service look like?
• Are there efficiency opportunities being missed?
• How will this impact long-term operating costs?
• Is the installation fully coordinated with other trades?
• Is the work being performed by properly licensed and qualified technicians?

These aren’t just technical details — they directly affect project timelines, building performance, and overall cost of ownership.

At Main Enterprises, our projects are executed by experienced, licensed professionals who understand the importance of doing the job right — from planning through completion.

The right questions upfront lead to better outcomes long after the project is complete.

Planning a project? Let’s talk.

📞 (203) 334-3419
🌐 www.mainhvac.com

📊 Your HVAC Budget Is Being Decided Right Now. Not during a breakdown. Not during peak summer.Right now — in how your sy...
04/16/2026

📊 Your HVAC Budget Is Being Decided Right Now. Not during a breakdown. Not during peak summer.

Right now — in how your systems are prepared. As buildings transition into cooling season, small inefficiencies start to compound:

• Systems running longer than necessary
• Components working harder than designed
• Minor issues quietly increasing operating costs

Most facilities don’t notice… until the bills — or failures — show up.

Preventative maintenance isn’t just about avoiding breakdowns —
it’s about controlling how your building performs financially.

At Main Enterprises, we help facilities move from reactive spending to controlled, predictable operation.

Because the goal isn’t just to maintain your system — it’s to manage your cost.

Call Main Enterprises today to schedule your preventative maintenance!

📞 (203) 334-3419
🌐 www.mainhvac.com

04/14/2026

🏗️ Complex HVAC Projects Require the Right Partner.

Installing mechanical systems in multi-story buildings isn’t just about equipment — it’s about ex*****on.

From equipment placement to system integration, every phase needs to be handled with precision to avoid delays, added costs, and performance issues down the line.

🎥 This project offers a behind-the-scenes look at equipment being set in place — a critical step that directly impacts long-term system reliability.

At Main Enterprises, we specialize in delivering commercial HVAC construction projects that are:
✔️ Efficiently executed
✔️ Properly coordinated
✔️ Built for long-term performance

Whether you're planning a new build or upgrading an existing facility, having the right mechanical partner makes all the difference.

Let’s build it right the first time. Call Main Enterprises today!

📞 (203) 334-3419
🌐 www.mainhvac.com

🔧 Skilled HVAC & Plumbing Technicians — Connecticut is CallingThe demand for skilled mechanical technicians in Connectic...
04/08/2026

🔧 Skilled HVAC & Plumbing Technicians — Connecticut is Calling

The demand for skilled mechanical technicians in Connecticut is growing — and the right company makes all the difference.

At Main Enterprises, we don’t just hire technicians.
We invest in careers.

Our technicians are supported with industry-leading benefits, career growth opportunities, and our Technician Investment Program (TIP) — a unique compensation model designed to reward performance today and build financial stability for the future.

What makes Main Enterprises different?

✔ Competitive compensation
✔ Multiple bonus opportunities
✔ The TIP Program — a “pension-like” investment option for technicians
✔ Career growth within a 100+ year mechanical company
✔ Diverse commercial and industrial projects across Connecticut

If you’re an experienced HVAC Service Technician or Commercial Plumber, this is your opportunity to join a company that values skill, professionalism, and long-term success.

Explore all open roles:
🌐 www.mainhvac.com/careers

Learn about TIP:
📈 www.mainhvac.com/tip

📞 (203) 334-3419
🌐 www.mainhvac.com


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Address

1180 Stratford Road
Stratford, CT
06615

Telephone

+12033343419

Website

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