35 Years of Trust,
Right in Your
Backyard.
State Licensed
License #PR3383
Family-Owned
Since 1988
Eco-Friendly
Safe for family & pets
Emergency Response
7 days a week
30+
Years TrustedHow It All
Began
"
We started with a simple belief: every family deserves a safe, pest-free home — and they deserve to be treated like neighbors, not customers.
The Castech Family
Founders, Castech Pest Services · Est. 1988
Castech Pest Services first started eliminating unwanted pests in 1988 in residential and commercial locations in Fresno, CA and the surrounding areas. What began as a small family-run operation quickly grew into one of the most trusted pest control companies in Central California.
Over the decades we’ve expanded our services to cover insects, birds, bats, rodents, and much more — always with the same commitment to quality, honesty, and outstanding customer care we started with. We now serve the entire San Joaquin Valley, Central California Mountain communities, and beyond.
Today, Castech is proud to offer comprehensive services including residential treatment, commercial and industrial programs, WDO real estate inspections, pre-treatment, and our newest division — Castech AG, providing specialized agricultural pest control across California’s Central Valley.
What We Stand For.
Everything we do is guided by the principles that have made Castech Central
California’s most trusted pest control company for over three decades.
Value 01
Family First
As a family-owned business, we treat every client like a neighbor. We take the time to understand your unique situation and deliver personalized solutions — not one-size-fits-all treatments.
Value 02
Eco-Responsible
We use eco-friendly products that are effective against pests but safe for your children, pets, and the environment. Doing right by your family and our planet is non-negotiable.
Value 03
Expert Precision
Our licensed technicians don't guess — they diagnose. Every visit includes a thorough inspection, a detailed written report, and a customized plan built for your property.
Value 04
Always Available
Pests don't work 9-to-5, and neither do we. We're available 7 days a week including holidays and offer emergency same-day service when you need it most.
Value 05
Radical Transparency
No hidden fees, no upselling, no surprise charges. We provide a comprehensive written report with every inspection and give you honest recommendations you can trust.
Value 06
Proven Results
Over 35 years of experience backed by state licensing, full insurance, and thousands of satisfied clients across Central California. Our track record speaks for itself.
State Licensed & Fully Insured
License #PR3383 · Bonded & Certified
More Than Pest Control.
Real Peace of Mind.
When you hire Castech, you’re not just getting a treatment — you’re getting a partner committed to your property’s long-term protection.
Thorough On-Site Inspections
We don't quote over the phone. Every job starts with a certified technician on your property, assessing the full picture first.
Detailed Written Reports
You receive a comprehensive report with findings, recommendations, and a transparent estimate — no guesswork.
Eco-Friendly & Family-Safe
Products chosen for effectiveness against pests and safety around children, pets, and sensitive environments.
Follow-Up & Ongoing Support
We don't disappear after the first treatment. Ongoing maintenance programs keep your property protected year-round.
Madera
Fresno
Clovis
Bakersfield
Modesto
Merced
Visalia
Hanford
Tulare
Chowchilla
Selma
Los Banos
+ Surrounding Areas
Licensed, Certified & Fully Accountable
State Licensed
California Structural Pest Control Board licensed. License #PR3383.
Fully Insured & Bonded
Complete liability insurance and bonding on every job.
Eco-Certified Products
EPA-registered, eco-friendly products proven safe for families and pets.
WDO Certified
Certified Wood-Destroying Organism inspectors accepted in all CA real estate transactions.