
Structural Pest Control
Termite Control in San Mateo, CA
101 Exterminators provides termite control in San Mateo, where a raised foundation, a slab, or exposed roof framing changes what an inspector can see. The neighborhood alone cannot identify a termite. We look to the evidence and the construction of the specific home before discussing localized drywood treatment, a whole-structure option, or a subterranean termite plan.
Home maintenance
How do you keep termites out of a San Mateo home?
Keep wood dry and keep it off the soil. San Mateoβs subterranean termites swarm after the first fall rains, usually in October, and about 46% of the cityβs homes were built before 1960, so original wood near damp ground is common. Most prevention here is drainage, clearance and a yearly look at the exposed wood.

Clean gutters before the October rains
Subterranean termites swarm after the first soaking rain of fall. Clear gutters and check that downspouts empty away from the house in September, so the first storm doesnβt pool water against the foundation and siding.
Pull soil and mulch back from wood
Planter beds on older San Mateo lots often climb up against wood siding over the decades. Lower the soil and bark so no siding, trim or fence post touches the ground, and leave the strip next to the house bare enough to see.
Keep sprinklers off the foundation
July rain is close to zero, so lawns run on irrigation for months. Aim heads away from walls and fix drip lines that leak into the bed beside the house, because damp soil against the foundation is what subterranean colonies follow.
Look at beam ends and eaves every summer
Drywood termites swarm in summer and fall and leave six-sided pellets. On Highlands and 19th Avenue Park Eichlers, walk the house once a summer and look under the exposed beam ends and fascia, where pellets collect first.
Keep firewood and lumber away from the house
Store firewood off the ground and away from the walls, and donβt leave scrap lumber under decks. Laurelwood and San Mateo Park yards collect fallen branches and leaf litter too; clear it from the base of the house.
When to do it
Drainage and gutters in September, before the first fall rain; a pellet check on exposed wood each July or August.
Maintenance guidance: UC IPM, Termites (Pest Notes 7415)
Warning Signs
When to Ask About Termite Control in San Mateo
We check visible wood in accessible attics, crawl spaces, fences, and exterior areas, then explain the next step. For written findings needed in a sale, book a paid structural pest inspection. Its WDO report separates Section 1 from Section 2 conditions.
Hollow-sounding wood when tapped β galleries eaten from inside
Frass (fine sawdust-like pellets) near baseboards or windowsills β drywood termite excrement
Discarded wings near doors or windows in spring β swarmers leaving to start new colonies
Blistering or bubbling paint on wood surfaces β subterranean tunnel activity underneath
Mud tubes running up foundation walls or piers β subterranean termite foraging trails
Soft or sagging flooring near walls β severe structural damage to subfloor joists
Small holes in wood with discoloration around the edges
Real estate transaction requiring a WDO inspection and clearance report
How It Works
What to Expect from Termite Control in San Mateo
Tell us where you found wings, pellets, mud tubes or damaged wood. If you need a written report for a sale or refinance, ask for a formal WDO inspection when you book.
Visual Review or Formal Inspection
A licensed technician reviews visible signs in accessible areas and explains them. For a sale, a separately booked paid structural pest inspection documents findings for the written WDO report.
Findings & Recommendations
We explain what we find and recommend the next step. A formal written WDO report comes with a separately booked paid structural pest inspection.
Targeted Treatment Plan
We recommend the most effective and least invasive treatment β whether that's localized spot treatment, fumigation for widespread drywood infestation, or subterranean bait systems.
Treatment & Documentation (If Needed)
If treatment is authorized, we carry out the agreed plan and explain any follow-up. When correcting Section 1 findings from a separately booked paid WDO inspection, we provide the applicable completion documentation.
Why 101 Exterminators
Why Choose 101 Exterminators for Termite Control in San Mateo
State-Licensed Inspectors
Our inspectors hold California Structural Pest Control licenses and are compliant with SPCB regulations for both inspections and treatments.
WDO Reports for Real Estate
We issue California Structural Pest Control Reports used in real-estate and financing workflows. If your lender, escrow company, or loan program has specific requirements, confirm them before scheduling.
Both Termite Species Covered
Central California has both drywood and subterranean termites. We identify which species is present and apply the treatment protocol specific to each.
Written Follow-Up Terms
Any re-inspection, re-service, or warranty terms for the recommended treatment are provided in writing before work begins.
Common Questions
Termite Control FAQs for San Mateo
Can a slab home in San Mateo have termites?
Yes. A slab does not keep drywood termites out of exposed wood, and subterranean termites can reach wood through openings or gaps. An inspection should examine the accessible perimeter and wood above it rather than assuming the foundation type settles the question.
Do pellets at a San Mateo window tell me which treatment to choose?
No. Pellets can help identify drywood termites, but they cannot establish whether activity is current or how far colonies extend. Record where you found them and ask for an inspection before choosing between localized and whole-structure work.
Does living near Marina Lagoon mean I need a soil treatment?
No. Proximity to water does not diagnose subterranean termites at your property. A soil-focused plan needs evidence of the insect or its path into the structure, along with a review of the foundation and conditions at that address.
Inspection and termite references
State and university guidance on California inspection reports, termite signs, and treatment choices.
- California Business and Professions Code Β§8516: inspection report requirements Β· California Legislature
- How to obtain a previous termite inspection report Β· California Structural Pest Control Board
- Drywood termites: signs and treatment limits Β· University of California Integrated Pest Management
- Subterranean and other termites: identification and management Β· University of California Integrated Pest Management
Local Pest Pressure
Common Pests We Treat in San Mateo
Every area has its own pest profile shaped by climate, housing, and geography. These are the pests we see and treat most often in San Mateo β tap any one to learn how to identify it and what treatment involves.
Termite Control Β· San Mateo
Schedule Service in San Mateo
Tell us what you have found and where. For a sale or refinance, request a separate paid WDO inspection.