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Fontana is in our extended service area. A $295 travel fee applies and is credited in full toward any treatment you book. Learn about extended service areas →

Home / Fontana Termite Control / Subterranean Termite Treatment

Moderate RiskFontana, San Bernardino County

Subterranean Termite Treatment in Fontana, CA

Moderate risk, growing city with mix of housing ages.

Fontana's soil conditions make it particularly susceptible to subterranean termites — Termidor treatment creates a continuous liquid barrier around your foundation that eliminates existing colonies and prevents new ones.

Subterranean Termite Treatment — Quick Facts

$800–$2,500 + $295 travel fee (credited toward treatment cost)1 day1 year
No vacating neededsubterranean termites

Why Subterranean Treatment in Fontana?

Moderate risk, growing city with mix of housing ages.

San Bernardino County's soil conditions — including irrigation-heavy landscaping, clay soil, and former agricultural use — create ideal subterranean termite habitat. Termidor's transfer effect means it eliminates not just exposed workers but the entire colony, including the queen.

All subterranean termite treatment services in Fontana are performed by our CA-licensed inspector (License #PR7791) and come with a written report, warranty documentation, and a free inspection before any treatment is recommended.

Inland valley homes often have subterranean termite activity driven by irrigation systems, lawn watering, and moisture-retaining clay soils. Termidor creates a continuous treatment zone that intercepts foraging termites before they reach wood structural members. Newer homes with concrete slabs and modern pest control barriers have lower subterranean risk initially. However, as landscaping matures and irrigation systems are established, subterranean pressure increases. Termidor treatment at the first signs of mud tube activity is most cost-effective before colony establishment.

Peak termite swarm season in Fontana: March–May. Don't wait for visible damage — early treatment costs a fraction of structural repairs.

Inspector Note — Fontana

The $295 travel fee applies to Fontana and is credited toward treatment. Confirm housing construction era at scheduling — south Fontana older homes vs north Fontana new construction require different inspection focus.

Subterranean Termite Treatment: Pros & Cons

Advantages

  • Eliminates entire colony — not just visible termites
  • Long-lasting protection: 3–10+ years with annual monitoring
  • No vacating required — you stay home during treatment
  • Termidor is the #1 subterranean termite treatment trusted by pest professionals

Limitations

  • Does not treat drywood termites (separate treatment required)
  • Some drilling required where concrete covers foundation perimeter
  • Requires annual inspection to maintain warranty
  • Termidor leaves a soil residual (not appropriate for certified organic properties)

Termite Conditions in Fontana

Fontana's rapid growth has produced a wide range of housing ages, and both older 1950s–1970s homes in the south city and newer 2000s–2010s developments in the north carry distinct termite profiles. The $295 travel fee applies and is credited toward any treatment.

Housing: Mix of newer master-planned tracts and older post-war homes, rapidly growingAvg Home Age: 20–45 yearsPopulation: ~215,000

NASCAR Auto Club Speedway; rapid IE growth; former Kaiser Steel mill site

Common issues we find in Fontana:

  • Drywood termites in older south Fontana housing stock
  • Subterranean colonies near HOA irrigation in newer north developments

Schedule Your Free Subterranean Termite Treatment Inspection in Fontana

Free inspection in Fontana — $295 extended service fee credited in full toward any treatment. Written report, no obligation, same-week scheduling.

  • CA Licensed (#PR7791) — SPCB-credentialed inspector
  • Written report within 24 hours
  • Serving Fontana since 2007

Request Free Inspection

Why Ultimate Termite

  • CA License #PR7791 — all work by SPCB-credentialed inspectors
  • Free inspection before any treatment is recommended — written report, no obligation
  • Written warranty on all work — retreatment at no charge if activity returns

Recommended Services in Fontana

Based on local termite conditions, these are the most common treatments for Fontana homes.

View all 10 treatment options in Fontana

Subterranean Termite Treatment in Nearby Cities

We provide subterranean termite treatment throughout San Bernardino County and all of Southern California.

Frequently Asked Questions

How much does subterranean termite treatment cost in Fontana?

Subterranean Termite Treatment in Fontana typically costs $800–$2,500. The exact price depends on the size of your home, the extent of infestation, and accessibility. We provide free on-site inspections with a no-obligation written estimate before any work begins.

How long does subterranean termite treatment take in Fontana?

Subterranean Termite Treatment in Fontana takes approximately 1 day. You do not need to leave your home during treatment. We schedule promptly and work around your availability.

Is subterranean termite treatment the right choice for my Fontana home?

Subterranean Termite Treatment is best suited for subterranean termite problems. Fontana homes face year-round termite pressure from both species. After your free inspection, our licensed inspector will confirm whether this is the right treatment for your specific situation.

Do you offer subterranean termite treatment throughout all of Fontana?

Yes — Ultimate Termite serves all neighborhoods in Fontana and the surrounding areas of San Bernardino County. Whether you're near the center of Fontana or on the outskirts, we can schedule a free inspection and treatment promptly. Call (714) 240-2800 or schedule online.

How long does Termidor take to work?

Termidor transfer technology means the colony is typically eliminated within 90 days. You may still see some termite activity for several weeks while the product works through the colony.

Do I need to leave my home during treatment?

No — Termidor is applied in the soil around the exterior of your home. No interior disruption or vacating is required.

How long does the treatment last?

Termidor provides 3–10+ years of protection. Annual inspections are required to maintain the warranty and to identify any new activity early.

What if I have a concrete slab foundation?

We drill through concrete at the required intervals to inject Termidor beneath the slab and along the foundation perimeter. Holes are filled after treatment.

Schedule Subterranean Termite Treatment in Fontana

Free inspection — no obligation. CA License #PR7791. 10% senior and military discount available.

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