Every job matters.

Over 55 years of experience and real focus on customer satisfaction.


As industry leaders in an ongoing quest for excellence, in Aireko Services and Installations (ASI) we combine technical expertise and practical experience in order to offer real solutions for our clients.

We are constantly searching for ways to better serve our clients and outperforming challenges. Our job is to help our clients run their businesses without worrying about everyday problems.

We work hard to earn our client’s trust, and keep great companies performing better.

We are here for our clients, 24/7.

ASI offers commercial and industrial air conditioning (HVAC) maintenance programs and repairs through custom designed programs with on-site or on-call services 24/7.

Our experienced staff is highly trained and licensed to find fast and accurate solutions.

We customize programs with the aim of keeping your mechanical, electrical, and building control systems operating at the optimum. Programs such as:

Preventive Maintenance Programs
The benefits of a well planned and executed Preventive Maintenance program result in higher energy efficiencies, increased reliability, extension of equipment life spans, reduction of untimely and sometimes costly repairs while providing a more productive work environment.

Full Labor Maintenance Programs
In addition to a well planned and executed Preventive Maintenance (PM) program, a Full-Service Labor program builds upon the PM program with a more comprehensive offering that normally includes all PM labor, 24-hour emergency labor costs, and labor to perform repair services. The benefits are many, including a more effective method for annual budgeting.

Full Service Maintenance Programs
The Full Service program is essentially all required PM services, 24 emergency service, repair and replacement Facilities and replaceable components with labor, parts, and materials costs included. The most effective way to budget for your systems needs and with much greater peace of mind for our clients.

Installation, rental, and repair of all type of HVAC Systems.

We specialize in optimizing facility equipment and critical systems so our clients can focus on improving upon their business. We partner with our clients to provide tactical facilities solutions that help customers enhance productivity, and reduce operating and capital cost.

Mobile Facilities Services
Our rapid response team is available 24 hours a day, 7 days a week.

On Site Facility Operations
A dedicated team of expert technicians maintaining and operating your facility according to your specific needs.

National Accounts & Multi Location Facility Services
We provide complete service solutions to clients with multiple locations around Puerto Rico and the Caribbean.

As a need of integrated mechanical and electrical services, ASI provides customers with a broad array of technology solutions. From building automation to fire alarm systems to custom designed remote monitoring, ASI can help your facility run at the speed of light. We can tailor technology systems to your specific needs including post installation maintenance. Remote monitoring and connect services are available in any of our maintenance packages.

Among our mechanical services we offer commercial and industrial systems for all type of building and uses.

We specialize in chilled water and HVAC systems installations, replacements and upgrades, HVAC retrofits, mechanical piping works both above ground and underground, as well as plumbing works.

We also have extensive experience in pharmaceutical and biotechnology clean room environments.

Our team of experts is able to get customized solutions that go beyond offering support; we become partners as key drivers in performance by achieving and exceeding objectives.

ASI helps clients to develop their annual capital construction budgets and offers pre-planning services, design build and turnkey services for any type of improvement or retrofit catered to every job because every job matters.

Our multidisciplinary staff seeks excellence by offering solutions to predicted or unscheduled tasks to guarantee the project’s success, on time and on budget.

Our degreed engineers, project managers, and skilled tradesmen bring all of their skills and knowledge together in the diagnostics of a facility. Whether it's the mechanical (HVAC, Plumbing) or electrical systems, general facility repairs and improvements to architectural and structural features of a building, including concrete, masonry, and finishes.

At ASI we believe there is always a better way to save money and to think about the future. That is why our team of energy experts will offer an accurate assessment of all your company’s equipment that will help your business operate with biggest energy savings, while running in a more cost-effective manner. ASI provides Photovoltaic and Microgrid Services to its clients with its turn-key concept that includes upgrades, repairs, monitoring and maintenance of systems throughout the Caribbean.

ASI provides boiler sales and services to Puerto Rico and the Caribbean region. With a staff of over 40 well-trained, expert multidisciplinary engineers and technicians, ASI continues to guarantee the best planning, installation, commissioning and maintenance of steam generation and hydronic systems. 24/7 repairs, troubleshooting, preventive and corrective maintenance services are available for all steam applications. ASI is also the exclusive representative of Cleaver Brooks boilers for Puerto Rico, and US and British Virgin Islands.

Sales, rental, installation, and repair of all type of steam generation and hydronic systems.

As part of our Business Continuity solutions, ASI now can provide our customers with integrated generator services. Sales, rentals, installations, repairs, upgrades and preventive maintenance packages are available for any size commercial and industrial electric generator. 24/7 service and remote monitoring options are available in all our service options.

ASI can provide strategic customers with on-demand fuel service for all generators and industrial equipment. Our fuel trucks are ready to supply diesel and other fuels anywhere in Puerto Rico. Automatic refuel or scheduled fill ups are available with this service.

Other component of our Business Continuity offerings is potable water management. ASI can provide installations, repairs and maintenance of all water pumping systems and cisterns. Using our remote monitoring system, ASI can prevent water supply failures that can cost a fortune in business interruption and community impact. Commercial, industrial and condominium services are available.

About Us

Aireko Services and Installations (ASI) has been planning, building and maintaining HVAC-R, mechanical, and electrical projects since 1963 in over 50 industrial, commercial and institutional facilities in Puerto Rico and the Caribbean.

As part of Aireko Enterprises and with over 60 employees, ASI combines experience, reliability and customization for all your facilities needs to assist in making your place of business, a better place to do business.

With business alliances with other US based construction services leaders, ASI has access to a great number of resources and expertise unrivaled by other companies.

Also, all those years of experience and great business results guarantee great relationships with the local workforce, vendors, subcontractors, and government agencies in varied contracting methods.

Josen Rossi
Chairman of the Board &
Executive Owner

BSCE, Cornell University 1980
MBA, University of Virginia 1989

Mr. Rossi is Chairman and majority owner of AIREKO General Construction. Josen has managed civil, institutional and industrial jobs for the Company since 1980, and is particularly experienced in fast track CM/GC and Design-Build Construction. He has also directed the development of AIREKO’s computerized estimating, cost control, and management systems.

Mr. Rossi is also actively involved through the company and personally in community and industry associations such as the Puerto Rico Manufacturer Association, the AIREKO Foundation, and the Young Presidents Organization.

Waldemar Toro
President & Board Member

BSEE – Polytechnic University of Puerto Rico MS Construction Management – Polytechnic University of Puerto Rico

Mr. Toro has over 20 years of experience in the electrical and mechanical disciplines, as well as the construction management fields, overseeing multimillion-dollar projects in both the public and private sector, including industrial, institutional, commercial and residential projects.

As General Manager of Aireko Services and Installations (ASI) he is committed to helping clients maximize operating results to excel in the overall achievement of their development objectives, as a one single source for HVAC and electrical upgrades and shutdowns, tenant improvements, and general construction maintenance services. He is a member of the IEEE and PMI.

Lorenzo Dragoni, P.E.
Board Member

BSME, University of Puerto Rico - Mayagüez Campus 1964 - P.R. License 4507

Mr. Dragoni has had ample experience in plant engineering, mechanical contracting, and general construction of industrial plants. He has pioneered the construction of special mechanical projects in Puerto Rico and Central America such as solar energy systems, and custom-built A/C and energy recovery systems.

He has also served as President and Board Member of Puerto Rico’s Mechanical Contractors Association, and leads Aireko’s preconstruction and construction management team, as well as the building systems maintenance and installation services.

Charles Reagan
Board Member

BSME – SUNY Syracuse

Mr. Reagan business experience includes managing the myriad of issues involved in growing and developing a privately held company including ownership and management succession, acquisitions, divestitures, sales, marketing, and LBO transactions and growth.

Prior to acquiring his company Mr. Reagan held a variety of positions in manufacturing, sales and management at the air conditioning equipment producer Carrier Corporation and the International construction firm Kimbach Company.

Francisco J. Uriarte, PE, CVA
Board Member

BSIE, Georgia Institute of Technology
MBA, Interamerican University

Since January 2014, Francisco is President of the Capital Group within the Aireko Companies. As President of the Capital Group, he supports the Chairman in the implementation of the overall business strategy, including the strategic use of the group’s capital and financial structuring capabilities to generate business opportunities for the Companies and support inorganic growth, as well as oversee the Shared Services for the Companies, which includes Risk Management, Financial and Treasury, Procurement, Business Development and Human Resources.

James Tustin Sasser
Board Member

BA, Grove City College

Partner and president of The Tustin Group (TMS LLC), a provider of advanced HVACR mechanical solutions for commercial, institutional and industrial customers in the Southern Eastern Pennsylvania, Delaware and Southern New Jersey areas. He is also a board member of Aireko Enterprises, an integrated construction services enterprise based in Puerto Rico.

Tus has been in the mechanical services industry for nearly thirty years, 20 of which have been with his own company. What was once a two-person mechanical services company in 1992 is now a multi-disciplined family of companies offering mechanical contracting and service solutions, water treatment solutions and advanced building energy management solutions to hundreds of industrial and commercial customers.

Carlos Rivera
Vice President Services Group

BSME, University of Puerto Rico at Mayaguez

Mr. Rivera is a general manager, business developer and operations leader experienced in energy, industrial and service companies. 20+ years of successful international practice in large and Fortune 500 corporations.

As Vice President of Aireko Services (ASI) he is committed to helping clients maximize results and objectives providing a single source of HVAC, Automation, Energy and Water Management Solutions.

Zero-Accident culture is one of the values that drive our company to success. We consistently perform to the safety, housekeeping, quality and project controls standards of our clients.

Our constant, well below industry average injury and accident record is a testament of our solid, proactive, comprehensive safety program we provide our workforce, our clients and our community.

We care about our clients; and we care about our resources. We have developed long, lasting relationships that continue to grow with trust and excellent results.

Our team of professionals excels in keeping the lines of communication open, meeting expectations, maintaining reliable and accurate reports and always focusing on the needs of our clients to find innovative ways to better serve them. We work collaboratively with our clients and, through the integration of services we can add value and offer better costs and results, while providing support and guidance for all their needs.

We are totally committed to customer satisfaction, first class service, safety and a responsible approach to the environment, resulting in a positive impact to the communities we work. Our company is committed into always finding better ways to deliver our clients vision, with zero accidents, and with lesser impact to the environment and with the best results, every time.



Postal Address:

P.O Box 11566
San Juan, PR 00922-1566

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