---
title: "Certus Grows California Footprint with Walsh’s Pest Control Acquisition"
url: https://burnaze.com/article/e6eb78db-864a-4dc7-ac99-3bf18d3e39be
source: "Pest Control Technology"
original_url: https://www.pctonline.com/certus-grows-california-footprint-with-walsh-pest-control-acquisition
category: "Lawn & pest"
industry: "Home Services"
segment: "Lawn & pest"
topics: ["Finance & M&A"]
published: 2026-05-21T09:00:00.000Z
modified: 2026-05-22T04:25:26.417Z
image: https://www.pctonline.com/fileuploads/image/2026/05/19/certus-walsh-948.jpg
---

# Certus Grows California Footprint with Walsh’s Pest Control Acquisition

**TL;DR:** Certus has acquired Walsh's Pest Control, a Monrovia-based pest control service provider, as part of its strategic growth in the Southern California market. The acquisition marks another step in Certus' expansion across California through acquisitions and integration of established brands.

*originally published in Pest Control Technology on 2026-05-21. [Read the original](https://www.pctonline.com/certus-grows-california-footprint-with-walsh-pest-control-acquisition).*

## Story

Certus has acquired Walsh’s Pest Control, based in Monrovia, California. Certus stated that Walsh’s has built a strong reputation as a customer-focused pest control provider, with values that align with their own.

This acquisition marks another step forward in Certus’ strategic growth within the Southern California market.

Certus emphasized its focus on partnering with pest control operators who share a commitment to operational excellence, long-term customer relationships, and being an exceptional employer. The company has expanded its presence across California through acquisitions and by integrating its established brands, with Southern California being one of its strongest markets.

Walsh’s namesake is owner Frank Walsh. Certus noted that both the company and its owner have cultivated deep community ties and a strong reputation for reliability, customer satisfaction, and dedication to excellence throughout the Greater Los Angeles area.

Walsh chose to partner with Certus because he sought a company whose values and principles aligned with his own company’s.

> "Southern California is one of America’s most significant business markets, and Los Angeles is one of our priority areas for growth," said Patrick Kelly, senior vice president of corporate development at Certus. "Frank has built Walsh’s Pest Control into a high-quality company with a loyal customer base and a reputation for excellent service, and his company’s values strongly fit with our long-term strategies and goals. We are excited to welcome his team to Certus and excel together."

Certus stated that smart scalability is a primary consideration for the company, with a key focus on continued growth in California. Walsh’s will integrate seamlessly into Certus’ existing operations in Southern California.

## Entities

- Home Services (sector)
- acquisition (topic)
- market expansion (topic)
- Southern California (location)
- pest control (topic)
- Pest Control Technology (publication)
- california growth (topic)
- Monrovia, California (location)
- Certus (company)
- Patrick Kelly (person)
- Walsh's Pest Control (company)
- Frank Walsh (person)

---
Originally reported by Pest Control Technology (https://www.pctonline.com/certus-grows-california-footprint-with-walsh-pest-control-acquisition). Summarized by Burnaze (https://burnaze.com/article/e6eb78db-864a-4dc7-ac99-3bf18d3e39be).