
Our Story
About Sentinel

Founded 2016 · Birmingham, AL
Built on science.
Driven by service.
Sentinel was founded by Marcus Cole, a lifelong Alabama native and Auburn-trained entomologist who spent a decade in commercial pest management before realizing that residential customers deserved the same level of science and thoroughness.
It started in Birmingham with a truck, a termite probe, and a commitment to actually explaining what he was doing and why. No jargon. No scare tactics. Just clear, honest answers and treatments that worked.
Today the team is twenty-two — licensed technicians, an entomologist, and a dedicated customer service team — covering Alabama from Huntsville to the Gulf Coast. Still locally owned. Still answering the phone on the first ring.

What Makes Us Different
Why Sentinel
Science-Based Treatment
Our approach is built on entomology, not just spraying and hoping. We identify the specific pest, understand its biology, and target the treatment accordingly. Every protocol is designed by our in-house entomologist.
Transparent Communication
We tell you exactly what we found, what we're doing, and what to expect. No jargon. No upselling. Just honest answers from technicians who take the time to explain.
Guaranteed Results
If pests return between scheduled treatments, so do we. Free of charge. No questions asked. We stand behind every service with a written guarantee.
Your Home, Our Responsibility
We're licensed, insured, and background-checked. Every technician is trained, uniformed, and arrives in a marked vehicle. We treat your home like it's our own.
2,500+
Homes Protected
22
Team Members
8
Years Serving Alabama
4.9
Star Rating
Our People
The Sentinel Team
Every Sentinel technician is state-licensed, background-checked, and trained in the latest pest management science. They arrive in uniform, in a marked vehicle, on time.
But training and credentials are just the baseline. What sets our team apart is how they treat your home and your time — with respect. They explain what they're doing, answer your questions, and leave your home cleaner than they found it.
The kind of people you're comfortable having in your home.
