Meet The Team

Vivian Sisneros Sr. 

Chairman of the Board

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In 1989, Vivian Sisneros Sr. founded ISHC when he opened the doors in Bosque Farms, NM.  He started residential service by marketing himself with only a hand shake and a business card.  Vivian continues to lead teams in successfully installing systems for projects such as Atrisco Heritage, the Santa Fe Opera, Los Lunas schools and the Manuel Lujan building, to name a few.  Mr. Sisneros is still an active and integral part of the business and acts as the Foreman on many key jobs across the city.  For over 28 years, Mr. Sisneros has showed true grit to get the business to where it is today and he values his customers and the relationships he has built over the years.  He has been married for over 40 years and has 3 children.

Vivian Sisneros Jr.



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Vivian Sisneros, Jr., with over twenty years in mechanical contracting, has expertise in negotiations, project management and small business development. He creates and maintains mutually beneficial partnerships and relationships with other industry professionals, owners, vendors and service providers.

Having successfully and significantly grown three businesses since 1995, Vivian Sisneros, Jr. continues to establish innovative and market changing strategies so that ISHC, G90 Mfg. and BIMCo stay competitive and profitable in this evolving economy.

Chelsey Sisneros


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Chelsey Sisneros is the Chief Financial Officer for ISHC and continually strives for excellence of the company.  She challenges the status quo by thinking outside of the box to help with continual growth.   She assures that the company is using cutting-edge technological advances to maintain the companies efficiency and cost savings for the client. 


Chelsey graduated as a nurse in 2003 and is at the forefront of the companies mission to supply clean water and medical clinics across the globe. She has a true passion for community outreach and is also a medical lead for Impact Nations in 3rd world countries.

Justin Rawls 

Operations Manager

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Justin has been an asset to the HVAC Industry since 2000. Since that time he has worn many hats including Journeyman, Estimator, and Project Manager. As a project manager, he has managed over 100 projects, which range from small schools to very technical projects such as Clean Room Micro Fabrication facilities. With an extensive background in project estimating and along with 9 years of HVAC installation, his expertise in the industry allows him to be competitive and accurate when creating commercial bid proposals. This is especially beneficial with design-build projects.


Justin provides a consistent level of service to our current and potential clientele. In his supervision of field personnel, he is diligent in ensuring that schedules are met and that projects are completed within budget. His team leader and communication skills as well as his thorough understanding of the process, makes Justin key to ISHC’s continued success.

Ron Sisneros

Vice President of Development

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For the past 14 years Ron has worked in business development for Wells Fargo, Artistic Tile & Granite, United Stoneworks, and now ISHC. Ron thrives on achieving the highest satisfaction for his clients as he bridges the relationship between design, fabrication, and installation. Ron believes in the power of building relationships and has been hired by many local companies to teach them how to develop and increase their networks in order to build business and impact the community.


Ron has been an essential associate of the Home Builders Association of Central New Mexico for the last 12 years serving as the chair of many committees and the vice-president from 2012-2013. An active member of the community, Ron has served on numerous charitable boards throughout the community including Remodeler’s Council of Central New Mexico, the Young Executives, the Cystic Fibrosis Foundation and currently the chair of March of Dimes Signature Chef’s Gala. Ron’s goal is to foster and cultivate relationships with ISHC and our valued partners.

Priscilla Medina


Project Manager Assistant

Kristina Fuentes

Office Manager