Change the way you see building system cycles: Transforming the building and industrial category into a landscape powered by streamlined and end-to-end systems.


Backed by solid expertise driven by our people, our systems and our partners, we make groundbreaking solutions designed to eliminate the inefficiencies in the current building system cycle.


Unlike most building system cycles, where there are multiple providers across every stage from conceptualization, design, implementation, certification down to monitoring and improvement stage, we provide a seamless guide and a continuous flow of responsibilities in every step of the process. It is our vision to boldly transform and step out from the traditional ecosystem and to elevate the cycle from the existing overlapping responsibilities and unnecessary layers of processes.


At Alstra, we provide synergized expertise and robust system. With one team and a centralized model, these make us the only company in the country that delivers end-to-end building solutions.





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Concepcion-Otis Philippines Inc.

Concepcion-Carrier Air Conditioning Co.

Customer Service

+63 (2) 8 888 8247


Toll Free



Office Telephone

+63 (2) 8 850 1367



Km. 20, East Service Road South Superhighway Muntinlupa City, Philippines


+63 (2) 8 888-OTIS (6847)


Toll Free



Office Telephone

+63 (2) 8 888-OTIS (6847)



21F BPI-Philam Building, 6811 Ayala Avenue,

Makati City Philippines

We start. We f inish.