General Pest Control
Ant, spider, and roach control targeted at the actual entry points and nesting areas — identified first, then treated directly.
- ✓ Entry points identified before treatment
- ✓ Clear pricing before any work begins
Alhambra's Trusted Pest Control Provider
Westmark Pest Solutions handles ants, spiders, rodents, and termites for homes across Alhambra and the San Gabriel Valley — treating the specific entry points and nesting areas causing the problem, not spraying the entire yard by default.
About Us
Westmark Pest Solutions is based at 35 E Main St in Alhambra, CA, providing general pest control, termite, and rodent services for homeowners across the San Gabriel Valley.
Owner Vaughn Callahan built the business around precision: finding the specific entry points and nesting areas driving a pest problem, then treating those directly instead of blanket-spraying an entire property by default.
What We Do
The specific entry points and nesting areas treated directly, not a blanket application of the whole property.
Ant, spider, and roach control targeted at the actual entry points and nesting areas — identified first, then treated directly.
Full inspection for subterranean and drywood termite activity, with localized treatment at the actual activity site considered before a full liquid barrier.
Entry-point sealing plus trapping, focused on how rodents are actually getting in rather than a generic trap-and-hope approach.
Scheduled visits that check and re-treat the specific points that matter, not a generic full-property spray.
Yard-focused mosquito reduction targeted at standing water and harborage areas.
Sealing attic and crawlspace entry points against raccoons, squirrels, and other wildlife.
What It Costs
General ranges for orientation — every job gets a firm, written price after a free on-site diagnosis, before any work begins.
Free – $99
Includes identifying the actual entry points, credited toward treatment if you move forward
$150 – $350
Targeted at identified entry points and nesting areas, not the whole property
$40 – $70 / visit
Ongoing protection billed quarterly, re-checking the specific points that matter
$100 – $150
Often included at no charge alongside a same-visit treatment estimate
$300 – $1,500
Price depends on infestation size and whether localized or full barrier treatment fits better
$200 – $600
Sealing the actual entry points plus trapping and removal
Ranges reflect typical pest control costs and vary by system age, access, and parts availability. Not a quote — call (661) 513-4964 or request a free on-site estimate for your exact price.
Why Choose Us
We treat the specific entry points and nesting areas, not the whole yard by default.
Fast scheduling across Alhambra, San Marino, and South Pasadena.
A targeted approach means less chemical applied overall for the same outcome.
Vaughn Callahan is directly involved in how entry points are identified and treated.
A Homeowner's Guide
A blanket spray of the entire yard isn't always the right call. Here's what to ask before agreeing to a treatment plan.
A technician should be able to point to specific spots — a gap under a door, a gap in the foundation, an overhanging branch — not just recommend a general spray.
For many ant and spider problems, treating identified entry points works before a full-property application is needed.
Pest control work in California should be performed by a company licensed with the state's Structural Pest Control Board, with a written treatment plan before work begins.
Where We Work
Westmark Pest Solutions serves Alhambra and the surrounding San Gabriel Valley, where Mediterranean summers push highs into the upper 80s through July and August and roughly 280 sunny days a year keep ants and spiders actively searching for water and shelter around home foundations for most of the year.
FAQ
Not by default — we identify the actual entry points and nesting areas first and treat those directly, which is often enough on its own.
Alhambra, San Marino, South Pasadena, Monterey Park, Rosemead, and San Gabriel.
Yes, focused on re-checking and re-treating the specific points that matter.
Yes, we inspect for both subterranean and drywood termite activity and provide a written report either way.
We're open every day from 7:00 AM to 10:00 PM. Call (661) 513-4964 to schedule.
Get In Touch
Tell us what you're seeing and we'll follow up to schedule an inspection.
For pest control aimed at the actual problem, not the whole yard, Westmark Pest Solutions is ready to help.