License #781353
Mon-Fri 8am-8pm Sat & Sun 9am-5pm

Meet Our Team

Office Staff

Donna Kreisler

  • General Manager
  • 7 years with NRG
  • I have a 21-year-old daughter who I adore. Happily remarried since last November. I have trained over 10,000 people in my career. I love to learn and educate.
  • “We rise by lifting others.” – Robert Ingersoll

Omar Hernandez

  • Senior Technical Director
  • 10 years with NRG

Kelsey Loyd

  • Operations Director
  • 2 years with NRG
  • In my free time, I love to play with my dogs Heidi and Clair de Lune. My hobbies include traveling, arranging flowers, and scuba diving, and fishing with my family. I’m also the only person I know who still writes checks, uses a rotary phone, and goes to the opera but can’t seem to get a senior discount.
  • “Live! Life is a banquet and most poor suckers are starving to death.” – Rosalind Russell

Leon Tsap

  • Production Manager
  • 2 years with NRG
  • I have been married for 17 years; I love to tinker on old cars and I’m an amateur chef.
  • Do or do not, there is no try.

Michell Tapping

  • Sales Coordinator
  • 3 years with NRG
  • My hobbies are cooking, dancing, and reading.
  • Stretch, bend, reposition, but never break!

Ryan Tanner

  • Dispatch Manager
  • 6 years with NRG
  • Ladykiller with a bachelor’s degree in film production and the patience of a saint.
  • Challenge accepted.

Gene Rudin

  • Dispatch Manager
  • 6 months with NRG
  • Married for 17 years with 2 boys, ages 14 and 10. I love camping, fishing, and the great outdoors. I also love spending time with my family and most of all, love being a dad.
  • “Empty your mind, be formless. Shapeless, like water. If you put water into a cup, it becomes the cup. You put water into a bottle and it becomes the bottle. You put it in a teapot, it becomes the teapot. Now, water can flow or it can crash. Be water, my friend.” – Bruce Lee

Lorraine Scarano

  • HVAC Design Coordinator
  • 3 years with NRG
  • I like to spend my free time hiking, working out, and spending time with friends. I have two adult children who I’m very proud of. My favorite places that I’ve traveled in my life were New York City, London, and Dubai.
  • I’m one kind word away from stopping someone from giving up.

Karla Ortega

  • Sales Coordinator
  • 2 years with NRG
  • I love the beach and reading motivational books. I have a cat named Prince who likes to tell me “no” all the time. I enjoy spending time with my nephews and making people laugh.
  • Life is too short to be anything but happy.

Larry Miller

  • Quality Control Manager
  • 3 months with NRG
  • Married with 2 children and 4 grandchildren who I love very much.
  • Life, liberty, and the pursuit of happiness.

Payal Gaur

  • Assistant Production Manager
  • 4 months with NRG
  • I love to workout and spend my free time outdoors.
  • “Have a good time. Life is too short to get bogged down & be discouraged. You have to keep moving. Put one foot in front of the other, smile & just keep on rolling.” – Kobe Bryant

Candice Hollinger

  • Accounting Assistant
  • 8 months with NRG
  • Married for 30 years. I’m a very loyal and committed person.
  • “All tyranny needs to gain a foothold is for people of good conscience to remain silent.” – Thomas Jefferson

Leticia Amaya

  • Office Manager
  • 1.5 years with NRG
  • I love playing with my kitten Oreo and making jewelry. My goal is to become a successful business owner and create a free financial institution where children can learn money management and investments.
  • “A person who never made a mistake never tried anything new.” – Albert Einstein

Ara Touniyans

  • IT Manager
  • 1 year with NRG
  • I am an accomplished flamenco guitar player. I like working on computers and electronics as well.
  • The purpose of our lives is to be happy.

Certified HVAC Design Experts CA

Robert Blankenstein

  • Certified HVAC Design Expert
  • 4 years with NRG
  • I enjoy staying fit and working out at the gym whenever I can. I also enjoy traveling to the mountains and going hiking. I like to listen to heavy metal and trap music and two of my favorite movies are Ghost and Deliverance.

Allen Buzaglo

  • Certified HVAC Design Expert
  • 1 year with NRG
  • I love spending time with
  • my 9-year-old daughter as well as my 7-year-old twins. My favorite movie is Braveheart and oldies music rocks! I love my pet Shi Tzu named Minnie and any time I can, I go fishing and spend time doing any beach-related activity.

John Gaxiola

  • Certified HVAC Design Expert
  • 3 months with NRG
  • My hobbies include camping and off-roading with quads and dirt bikes. I love my family and riding with my motorcycle club called Sic Psycles. I have trained many HVAC technicians in my career.

Eli Harosh

  • Certified HVAC Design Expert
  • 1 year with NRG
  • I have two children ages 25 and 26 who both live in the L.A. area. They are the reason why I moved to L.A. I have a beautiful Maltese puppy called Goldie. My favorite movie is Legends of the Fall. My hobbies are cooking, horseback riding, and off-roading with my son.

Amit Kadosh

  • Certified HVAC Design Expert
  • 6 months with NRG
  • I love to be with my two girls and my family. We enjoy going dirt biking, off-roading, and camping particularly at Glamis Dunes and Lake Havasu. I’ve been working in the construction industry for 6 years.

Amir Levi

  • Certified HVAC Design Expert
  • 2 years with NRG
  • I have two amazing kids, a boy and a girl. My favorite band is Depeche Mode.
    Music is what I love
    Father is who I am
    Love is how I live

Ziv Majar

  • Certified HVAC Design Expert
  • 2 years with NRG
  • Bio coming soon

Adam Nasser

  • Certified HVAC Design Expert
  • 3 months with NRG
  • My favorite show is Friends and my favorite movies are the Fast and Furious series. I enjoy working on cars, swimming, and playing soccer. My position is goalie. I also love exploring new areas and cities and food of all kinds. The most important people in my life are my girlfriend and my family.

Yaz Nammour

  • Certified HVAC Design Expert
  • 6 months with NRG
  • I really enjoy working on cars in my spare time and I find a lot of satisfaction in my work and helping people! My favorite movie to watch is Remember the Titans and I like to listen to reggaeton and rock.

Michael Santamaria

  • Certified HVAC Design Expert
  • 2 years with NRG
  • Loving dad to 2 kids. Also proud dad to a family of rescue goldfish. Proud of my Italian heritage and love to spend time outdoors, especially at the beach. Working to save the environment every day by driving a Prius like Mario Andretti.

Fred Worley

  • Certified HVAC Design Expert
  • 6 months with NRG
  • My favorite movie is The Outsiders and my favorite music genre is classic rock. I have one cat named Mamas. I also have one boy now and am hoping for more!

Jonathan Foster

  • Operations Coordinator
  • 4 years with NRG
  • I grew up in Seattle but moved several years ago to Simi Valley to be closer to family. I love cloudy mornings. I enjoy walks with my partner and our dog, grilling veggies, and gardening. I also enjoy listening to dance music, taking photos of nature, and learning new things.
  • My favorite kind of sandwich is two sandwiches.

We proudly install, repair, and service the following brands:


Los AngelesLos Angeles County, California
United States

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