Chapter I1920s
1921
Founded in Los Angeles
On June 1, Robert B. Loibl, Sr. establishes L & N Pest Control in Los Angeles, the original link in the family chain that still operates as Hydrex today.
About Hydrex
One hundred years.
One San Diego family business.
We have been pioneers in California pest control since 1921. Hydrex Pest Control Co. was incorporated in 1971. Generations later we still live by one promise: superior service isn't expensive, it's priceless.
100+
Years in the industry
5
Generations of families
1921
Year it all began
Our Century
A hundred years,
told in eight chapters.
Eight turning points from the Hydrex story: the decades, the methods, and the reason we're still here.
Chapter II1940s
1942
Leading the industry
Loibl, Sr. is elected the first president of the Pest Control Operators of California (PCOC), helping set the professional standards the industry still uses today.
Chapter III1940s
1946
The Hydrex name is born
Robert B. Loibl, Jr. founds Hydrex Pest Control Co., Inc. in Los Angeles, the name that still answers the phone a lifetime later.
Chapter IV1960s
1960s
Inventor in the family
Loibl, Jr. develops the B-Gone line of pest control products and earns patents on a vermin exterminator device and the Pestron insecticidal-vapor machine, methodologies still used in the industry today.
Chapter V1970s
1971
San Diego incorporates
On July 6, Hydrex Pest Control Co. formally incorporates in San Diego County, planting the flag in America's Finest City at what's now 9530 Dowdy Drive.
Chapter VI1990s
1990s
Orange oil for termites
Hydrex embraces D-Limonene, a renewable orange-oil treatment that eliminates drywood termites on contact. No tenting. No moving out. A greener option when one is warranted.
Chapter VII2000s
2000s
Electro-Gun technology
Non-invasive high-voltage Electro-Gun treatment joins the arsenal, giving San Diego homeowners a chemical-free option for hidden termite colonies inside walls and framing.
Chapter VIIIToday
Today
A century-old promise
A PCOC-affiliated, BBB-accredited San Diego team at 9530 Dowdy Drive, carrying 100+ years of industry leadership into every inspection, every treatment, every follow-up call.
And the next chapter is yours.
What Stays the Same
Old-school care.
Modern pest science.
The tools change: orange oil, borates, electro-gun technology, precision targeting. The values don't. Show up on time, inspect carefully, explain what we find, treat only what needs treating, and stand behind every job.
Fully licensed & insured
California-certified applicators on every job.
Eco-conscious by default
Low-impact methods whenever they will work for your home.
Veteran team
Decades of combined field experience, not a revolving door.
Prompt response
Twelve-hour reply to any inquiry, seven days a week.