2016
CSLB #1109970 · B · C-20 · C-10 | COMMERCIAL HVAC RETROFIT SINCE 1989
A KELSO INDUSTRIES COMPANY | SERVICE: (909) 746-0275
NEW
1989
One truck and a set of tools.
Retrofit Technology has replaced central plant equipment in Southern California commercial buildings for more than 35 years. Same family. Same lane.
When Tony Grano founded Retrofit Technology, they had a single truck with just the tools on it, a passion, and the love and support of their family.
More than 35 years later, Retrofit employs over 50 people and runs mechanical, electrical, and service crews out of Bloomington, California.
At Retrofit Technology we believe there are core qualities that make a company great, and because we are a family business, we believe that the same qualities that make a family thrive, make a business thrive.
THE SHORT VERSION
Thirty-seven years, one lane.
1989
2008
2009
2023
2024
2026
Tony Grano founds Retrofit Technology with one truck and the tools on it. Commercial HVAC retrofit from day one. No new construction, then or since.
Tony partners with Mitch Elgin (Elgin Electric) to bring electrical in-house, adding his own team rather than subcontracting it out. It remains one of our biggest advantages.
The service department launches, giving customers the same crews for maintenance that install their equipment.
Retrofit is acquired by Kelso Industries, a national platform of commercial mechanical and building-services companies.
Eric Rugg, Tony's stepson, takes over as President.
50+ employees, five states of project coverage, and $35,000,000 of single-project bonding capacity.
HOW IT STARTED
Tony started in his father's welding shop.
Tony Grano was born in Michigan and raised in Southern California from the age of eleven. He earned his bachelor's degree from Cal State San Bernardino and worked for his father's welding company before entering HVAC.
In March 1989 he founded Retrofit Technology. By 2008 he had added his own electricians. In 2009 he launched the service department. It is not a coincidence that certified welding is still something we self-perform — that is where he learned the trade.
“We do what we do the best that we can, and we stand behind the work that we do.”
TONY GRANO · FOUNDER
THE NEXT CHAPTER
A family business with a national balance sheet behind it.
In 2023, Retrofit Technology was acquired by Kelso Industries. In 2024, Eric Rugg — Tony's stepson, who came up through the business — took over as President.
What changed: bonding capacity to $35,000,000 on a single project, purchasing power on major equipment, and the ability to take on work at a scale a one-truck company in 1989 could not have imagined.
What did not change: the same crews, the same foremen, the same standard Tony set in 1989. We are still the company that gets called when the plant has to come back online before the building opens.
WHO RUNS THIS
People you can ask for by name.
LEADERSHIP
Tony Grano
Eric Rugg
Zaid Alsaadeh
Troy MacDonald
Founder
President
Chief Financial Officer
Operations Manager
BUSINESS DEVELOPMENT & OFFICE
James Dopson
Kris Grano
Daizy Martinez
Nikki Castaneda
Project Development
Project Development
Executive Assistant
Accounts Receivable
PROJECTS & OPERATIONS
Mitch Elgin
Brian Kellington
Dave Fuller
David Wollman
Travis Halliday
Jon Arreola
Phil Edwards
Quentin Allison
Electrical Manager
Project Director
Shop / Fleet Manager
Service Manager
CAD Manager
Project Manager
Project Manager
Purchasing Manager
1989
50+
$35M
B · C-20 · C-10
RETROFITTING SINCE
EMPLOYEES
SINGLE-PROJECT BONDING
CSLB #1109970
California Contractors License #1109970 — B (General Building), C-20 (HVAC), C-10 (Electrical). Bonded through Kelso Industries' syndicated surety program with six A.M. Best A-rated sureties. A Kelso Industries company since 2023.