The COREN site team photographed together on a project

About us

COREN Engineering Services brings together licensed engineering expertise and hands-on construction experience to turn plans into built work. We deliver precision, quality and structural integrity across residential, commercial, industrial and infrastructure projects throughout Calbayog City and Samar.

Engr. Cristofer M. Francisco, President and Chief Engineer
Engr. Ramon L. Pitao Jr., MEPME, PME, Professional Mechanical Engineer
Mr. Roland A. Luchavez, Architectural Designer
Ms. Olga N. Lontoco, Architectural Apprentice
Mrs. Brenda L. Francisco, Accountant
Ms. Judith S. Bonita, Admin Assistant

A Team Committed to Superior quality and results.

COREN Engineering Consultancy is a multidisciplinary engineering firm dedicated to delivering innovative, reliable and high-quality engineering solutions. We specialise in engineering design, construction, project management and technical consultancy, serving residential, commercial, industrial and infrastructure projects.

Built on a foundation of technical excellence and integrity, we believe every successful project begins with thoughtful planning, sound engineering principles and meticulous execution. Our work is designed to be functional and efficient, but also safe, durable and compliant with the highest engineering and construction standards.

From concept development and detailed engineering design through to construction management and project completion, we provide comprehensive solutions tailored to each client's vision. We don't simply construct buildings — we engineer solutions that stand the test of time.

Striving for Excellence

Every project is executed with precision, efficiency and safety, held to the highest engineering standards from first drawing to final turnover.

Innovative Minds

Modern engineering practice and efficient design methods, applied to deliver structural integrity using the least material necessary.

Client-Focused

We treat every project as a chance to build a lasting relationship through transparency, professionalism and dependable service.

Meet the People Who Make It Happen

Engr. Cristofer M. Francisco, CE, SO2

Founder · Chief Engineer · Project Manager

With nearly a decade of professional experience in civil engineering, Engr. Cristofer Francisco founded COREN Engineering Consultancy with a clear vision: to deliver engineering solutions built on structural integrity, technical precision, and uncompromising quality.

A licensed Civil Engineer and graduate of the Bachelor of Science in Civil Engineering, he has established a diverse career spanning multiple disciplines of civil engineering, including Structural Engineering, Water Engineering, Transportation Engineering, Project Management and Construction Engineering, and Civil Engineering Education. His expertise encompasses structural design and analysis, water supply and distribution systems design, plumbing systems design, land development, roadway design, as well as project management and engineering consultancy.

His engineering journey began in the Design and Planning Office of Northwest Samar State University. He later expanded his field experience as Project Engineer for the Improvement of Calbayog City Airport, Phase II. Driven by a passion for structural engineering, he specialized in steel connection design for U.S.-based structural projects and managed structural retrofitting works and structural investigation. His experience also extends into the water utility industry, where he served as Network Maintenance Manager and Territory Manager of Calbayog Water Company under Manila Water Philippine Venture, supervising water treatment systems, transmission and distribution networks, and non-revenue water management.

Today, as Chief Engineer and Authorized Managing Officer, he leads the delivery of residential, commercial and infrastructure projects — from concept and engineering design through construction, project management and final turnover.

Structural design & analysis Water supply & distribution design Plumbing systems design Land development Roadway design Project management & consultancy

The Team

Engr. Cristofer M. Francisco

Engr. Cristofer M. Francisco

Chief Engineer · Authorized Managing Officer

Engr. Ramon L. Pitao Jr.

Engr. Ramon L. Pitao Jr., MEPME, PME

Professional Mechanical Engineer

Mr. Roland A. Luchavez

Mr. Roland A. Luchavez

Architectural Designer

Mrs. Brenda L. Francisco

Mrs. Brenda L. Francisco

Accountant

Ms. Judith S. Bonita

Ms. Judith S. Bonita

Admin Assistant

Ms. Olga N. Lontoco

Ms. Olga N. Lontoco

Architectural Apprentice

Let's build spaces that inspire and leave a lasting impact