Enertech Systems Industries, Inc.

Enertech Systems Industries, Inc. Enertech Systems Industries, Inc. is the leading manufacturer, installer and supplier of superior quality boilers. A Filipino Corporation.

With its 40 years of existence in the boiler fabrication industry, ESII is dedicated to satisfying all your boiler needs. We are Enertech Systems Industries Incorporated. We are one of the fastest growing companies in the Philippines specializing in Engineering Design, Fabrication, Installation, Service and Parts, Operation and Maintenance of Boiler Systems and auxiliaries. Our Quality Products ha

ve gained recognition not only in the Philippines, but has been accepted by the global market. Our Global Plant in Marilao, Bulacan is a certified facility accredited by the American Society of Mechanical Engineers (ASME).

A milestone in Philippine engineering: Enertech’s 32TPH oil-fired, ASME Stamped steam boiler - the largest ever produced...
08/04/2026

A milestone in Philippine engineering: Enertech’s 32TPH oil-fired, ASME Stamped steam boiler - the largest ever produced by a local firm - certified entirely through Filipino ingenuity.

Dear Valued Partner,Following recent events, ENERTECH SYSTEMS INDUSTRIES INC. is entering its next chapter with a renewe...
19/03/2026

Dear Valued Partner,

Following recent events, ENERTECH SYSTEMS INDUSTRIES INC. is entering its next chapter with a renewed focus on efficiency and high-performance delivery. To better align our operations with the fast-paced needs of our clients, we are transitioning to a Compressed High-Intensity Work Week, effective March 16, 2026.

The goal is to provide you with more “on-call” hours during peak business days while maintaining our full weekly production output.

Our New Operational Structure:

Extended Service Windows: Our team will now be available for longer daily blocks, from 7:00 AM to 6:30 PM, Monday through Friday.
Service Team: Available from Monday through Saturday and even Sundays. Hotline numbers to call in case of emergency:
0918-912-6829 – Mr. Jerwin Manibog
Guaranteed Output: This is a restructuring of hours, not a reduction. Your project timelines, volume capacity, and deliverables remain unchanged.
Increased Focus: This model allows our technical creative teams dedicated blocks of uninterrupted time to accelerate your project milestones.
We are leaner, more focused, and fully committed to your growth. While our schedule is evolving to meet the modern demands of our industry, our dedication to your success remains our absolute priority.

We look forward to continuing our partnership with this enhanced level of service.

Best regards,

MANAGEMENT

It is with great pride that the Board of Directors announces the successful renewal of the Enertech Systems Industries I...
24/02/2026

It is with great pride that the Board of Directors announces the successful renewal of the Enertech Systems Industries Inc.’s American Society of Mechanical Engineers (ASME) certifications for the U, S, A, PP, and R Stamps.

This achievement is a historic milestone for our organization. As our first renewal since the passing of our visionary founder, Engineer Guillermo C.Simeon, it serves as a powerful validation of the path he paved for us. While leadership evolves, the core values of uncompromising quality and engineering integrity remain the heartbeat of this company.

To the Entire Enertech Family
This success belongs to every single one of you. From the meticulous documentation in our offices to the grit, precision, and hard work of our laborers on the shop floor, your collective dedication ensures that our standards remain the gold standard of the industry.

The Board extends its deepest gratitude to the entire team for upholding the excellence that defines us. Engineer Guillermo C. Simeon’s legacy continues to inspire our work, and today, we honor him by proving that the foundation he built is stronger than ever.

We move forward with confidence, united in our mission and our commitment to safety.

We are Enertech.

Today is the day we say our final goodbye and lay our beloved President, Engineer Guillermo Castillo Simeon to rest. He ...
07/11/2025

Today is the day we say our final goodbye and lay our beloved President, Engineer Guillermo Castillo Simeon to rest. He is now with the Lord. We will miss him terribly.

Thank you for all your support and prayers throughout this very difficult time.

From,
The Simeon Family and
The Enertech Community

We invite you to join us as we celebrate our Papa’s life during his final days of wake. Your presence, prayers, and shar...
04/11/2025

We invite you to join us as we celebrate our Papa’s life during his final days of wake. Your presence, prayers, and shared memories would mean so much to our family as we honor the love, strength, and joy he brought into our lives. Thank you for being part of this moment.

It is with profound sorrow and deep respect that we mourn the passing of our President, Engineer Guillermo C. Simeon. He...
30/10/2025

It is with profound sorrow and deep respect that we mourn the passing of our President, Engineer Guillermo C. Simeon. He was the unwavering pillar and foundation of the entire Enertech organization.
Engr. Simeon’s vision was our guiding star. He taught us the invaluable lessons that define us today:
- To stand proudly behind our technology as The Boiler Technology People.
- The fundamental truth that Enertech is all of us, united in a common mission.
- That as a Proud Filipino Engineering company, our commitment to ASME's (American Society of Mechanical Engineers) strict compliance proves the strength of —demonstrating that Filipino Engineering can compete and excel on the global stage.

Though we mourn this tremendous loss, we are resolved to remain stronger and grow bigger with your guiding light leading the way. We will continue the mission with the strength and dedication you instilled in every one of us.

Enertech stays ready- Drop, Cover and Hold On! Proud to be part of the Enertech’s earthquake drill and prioritize safety...
17/10/2025

Enertech stays ready- Drop, Cover and Hold On! Proud to be part of the Enertech’s earthquake drill and prioritize safety for all.

Following the recent surge in earthquakes in the Philippines, Enertech Systems Industries Incorporated urges all clients...
14/10/2025

Following the recent surge in earthquakes in the Philippines, Enertech Systems Industries Incorporated urges all clients to proactively prepare their boiler systems to ensure safety and operational efficiency.

Address

3855 Technology Road, Prenza II, Bulacan
Marilao
3019

Opening Hours

Monday 6am - 6pm
Tuesday 6am - 6pm
Wednesday 6am - 6pm
Thursday 6am - 6pm
Friday 6am - 6pm
Saturday 6am - 6pm

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