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Cockroach Exterminator for Rowland Heights Kitchens

German cockroaches are a common problem in commercial kitchens and in older home kitchens alike. Whether yours is a busy restaurant line on Colima Road or a 1970s kitchen at home, we find where they breed, treat with gel bait and an insect growth regulator, and keep checking until activity stops.

In September 2026 alone, LA County closed two Rowland Heights food businesses for vermin — one on the 18400 block of E. Colima Road and one on Labin Court.

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Pest technician applying gel bait at a wall-and-floor junction next to a stainless steel prep line and floor drain in a commercial restaurant kitchen

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Pest Control PESPRO — 12207 Chosen St, El Monte, CA 91733, about 10.4 miles from Rowland Heights
Office phone
(323) 303-3522
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QualityPro certified (National Pest Management Association)
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4.9 stars from 132 Google reviews · 15+ years in business
Hours
Mon–Fri 8AM–6PM, Sat 9AM–3PM · 24/7 emergency line

A timeline of vermin closures in Rowland Heights

County records and news reports based on county data confirm six Rowland Heights food businesses closed for vermin since early 2025: March 2025 on the 1300 block of S. Fullerton Road; April 2025, two in the same shopping center on the 18400 block of Colima Road; May 2025 on the 18100 block of Colima Road; and September 2026 on the 18400 block of E. Colima Road and on Labin Court.

The county's vermin category covers both rodents and insects such as cockroaches and flies, and these reports don't say which was found. German cockroaches are one of the most likely culprits in commercial kitchens because they breed quickly in warm, wet equipment. Of the closures with a published reopening date, most reopened within about a week once the problem was corrected.

Sources: [10][9][8]

Why plaza kitchens share cockroach problems

Many Rowland Heights restaurants sit side by side in plaza buildings. Shared walls, plumbing chases, grease lines and ceiling voids likely let cockroaches move between units, and cardboard from deliveries can bring new ones in. A restaurant that treats on its own while the unit next door doesn't will probably keep seeing them.

For commercial accounts we schedule service before opening or after closing, use products whose labels allow use in food-service areas, and focus bait and growth regulator on motor housings, wall-and-floor junctions, under prep tables and around floor drains. We also point out sanitation and sealing fixes. Sanitation matters on its own: the September 2026 county report listed a third Rowland Heights market that was closed for lacking a way to clean and sanitize, not for pests.

Sources: [8]

Cockroaches in Rowland Heights homes and apartments

At home, half of Rowland Heights homes were built in 1976 or earlier, and many kitchens and bathrooms have had plumbing replaced over the years without the wall openings behind sinks and toilets being closed. German cockroaches use those voids as warm, protected harborage.

In the roughly 1,060 apartments in buildings of 50 or more units, cockroaches can also travel between units along plumbing lines. Large reddish cockroaches that appear near floor drains, garages and cleanouts are a different species — usually American cockroaches coming up from sewer lines — and need drain and perimeter treatment rather than kitchen baiting alone.

Sources: [11]

Signs you need cockroach treatment in Rowland Heights

Roaches seen in daylight

Daytime activity usually means hiding spots are full and the population is large.

Coffee-ground smears

Dark specks and smears on door gaskets, shelf brackets and the undersides of prep tables.

Oothecae near warm motors

Tan to brown egg cases tucked behind refrigeration units, dishwashers and stacked cardboard.

Activity at floor drains

Large reddish roaches coming out of drains or cleanouts, usually American cockroaches from the sewer.

How we handle cockroach treatment in Rowland Heights

1. Monitor and map

Sticky monitors and a close inspection show which species you have and where the population is concentrated.

  • Kitchen, storage and restroom check
  • Drain and equipment inspection
  • Monitor placement
  • Hot-spot map and written findings

2. Bait plus growth regulator

Gel bait goes into the cracks and voids where cockroaches hide, and an insect growth regulator stops young roaches from maturing and breeding.

  • Gel bait in cracks and voids
  • IGR to break the breeding cycle
  • Drain treatment for sewer species
  • Placements out of children's and pets' reach

3. Re-inspect and report

Return visits check the monitors, re-bait where activity remains and list the gaps worth sealing.

  • Monitor counts compared visit to visit
  • Fresh bait where roaches still feed
  • Sealing and sanitation notes
  • Dated service reports for businesses

Pest reports in and around Rowland Heights

Public-health notices, vector-control alerts and local news we track for this area. Summaries are ours; follow each link for the original report.

· Greater Los Angeles County Vector Control District

West Nile Virus Activity 2026

The district's 2026 tracking table lists Rowland Heights with a first positive mosquito sample on June 23, 2026 and seven positive samples so far, ahead of Hacienda Heights (July 8). District-wide totals were 439 positive samples and 79 positive dead birds.

Read the original

· Los Angeles County Department of Public Health – Environmental Health

Retail Food Facility Closure and Re-Opening Report, September 13–19, 2026

Weekly report to the Board of Supervisors listing two Rowland Heights food facilities closed for vermin infestation in September 2026 (18400 block of E. Colima Road and Labin Court), plus a third closed for lacking cleaning and sanitizing facilities.

Read the original

· KTLA (via Yahoo News)

These L.A. county restaurants have been shut down by the health department

Roundup of county health closures showing three Rowland Heights food businesses on Colima Road closed for vermin in April and May 2025 — two in one shopping center on the 18400 block and one on the 18100 block — plus one closed for other violations.

Read the original

· KTLA (via Yahoo News)

Health inspectors shut down dozens of L.A. restaurants over 'vermin,' 'disease transmission'

Covers county closures from March 1–27, 2025, including a Rowland Heights restaurant on the 1300 block of S. Fullerton Road closed for vermin in March and reopened six days later.

Read the original

· Los Angeles County Department of Public Health · regional

Public Health Reports All-Time High of Flea-Borne Typhus Cases

LA County logged a record 220 flea-borne typhus cases in 2025, up from 187 in 2024, with most patients hospitalized. Infected fleas are tied to rats, stray cats and opossums; 2025 clusters were outside the San Gabriel Valley.

Read the original

Cockroach Treatment in Rowland Heights: common questions

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Rodent Control in Rowland Heights

In Rowland Heights, rats and mice show up in two kinds of places: the attics and garages of 1960s and '70s homes, and the storerooms of restaurants and markets. Either way the order of work is the same — find the openings, close them, trap the ones already living inside, then clear out droppings and nesting.

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Cockroach Treatment near Rowland Heights

Sources

  1. Greater Los Angeles County Vector Control District, “West Nile Virus Activity 2026” (2026-10-19). https://www.glamosquito.org/west-nile-virus-activity-2026
  2. Greater Los Angeles County Vector Control District, “West Nile Virus Activity 2025” (2025). https://www.glamosquito.org/west-nile-virus-activity-2025
  3. Greater Los Angeles County Vector Control District, “West Nile Virus Activity 2024” (2024). https://www.glamosquito.org/west-nile-virus-activity-2024
  4. Greater Los Angeles County Vector Control District, “West Nile Virus Activity 2023” (2023). https://www.glamosquito.org/west-nile-virus-activity-2023
  5. Greater Los Angeles County Vector Control District, “West Nile Virus Activity 2022” (2022). https://www.glamosquito.org/west-nile-virus-activity-2022
  6. Greater Los Angeles County Vector Control District, “West Nile Virus Update – August 15, 2022” (2022-08-15). https://glacvcd.specialdistrict.org/files/f7534fce0/PR_20220815_WNV+Update+%5BFINAL%5D.pdf
  7. Greater Los Angeles County Vector Control District, “2020 West Nile Virus Statistics” (2020). https://glacvcd.specialdistrict.org/2020-west-nile-virus-statistics
  8. Los Angeles County Department of Public Health – Environmental Health, “Retail Food Facility Closure and Re-Opening Report, September 13–19, 2026” (2026-09-23). https://file.lacounty.gov/SDSInter/bos/bc/1218326_RetailFoodFacilityClosureReopeningReportSept13-19.pdf
  9. KTLA (via Yahoo News), “These L.A. county restaurants have been shut down by the health department” (2025-05-23). https://www.yahoo.com/news/l-county-restaurants-shut-down-181819890.html
  10. KTLA (via Yahoo News), “Health inspectors shut down dozens of L.A. restaurants over 'vermin,' 'disease transmission'” (2025-03-27). https://www.yahoo.com/news/los-angeles-county-restaurants-shut-155506665.html
  11. US Census Bureau, American Community Survey (via Census Reporter), “Rowland Heights CDP, California — ACS 2020–2024 5-year estimates” (2024). https://censusreporter.org/profiles/16000US0663218-rowland-heights-ca/
  12. County of Los Angeles – Location Locator, “Peter F. Schabarum Regional County Park” (2026). https://locator.lacounty.gov/lac/Location/3179863/peter-f-schabarum-regional-county-park
  13. Los Angeles County Department of Public Health, “Public Health Reports All-Time High of Flea-Borne Typhus Cases” (2026-04-02). https://lacounty.gov/2026/04/02/public-health-reports-all-time-high-of-flea-borne-typhus-cases/
  14. Los Angeles County Public Works, “Who do I contact in order to remove a beehive?” (2026). https://pw.lacounty.gov/general/faq/index.cfm?Action=getAnswers&FaqID=JSNNLzFTLTAgCg%3D%3D
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