Treatments / Liquid Barrier
Liquid Soil Barrier (Termidor)
Stop Subterranean Termites at the Source
Termidor (fipronil) is applied as a continuous liquid barrier in the soil around your foundation. Subterranean termites contact or ingest the product and transfer it to colony members, eliminating entire colonies — not just foragers.
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Key Facts
Effective against subterranean termites in soil
Transfer effect eliminates entire colonies, not just individuals
Creates a continuous barrier around the entire structure
Termidor remains effective in soil for years
Undetectable to termites — they can't avoid it
How Liquid Barrier Works
Inspection
Confirm subterranean termite species and entry points.
Trenching
A trench is dug along the foundation, typically 6 inches wide and 6 inches deep.
Drilling
Holes are drilled through concrete slabs at foundation level where necessary.
Application
Termidor is applied at labeled rates to create a continuous treated zone.
Backfilling
Trenches are backfilled and drill holes patched.
Perimeter Verification
We verify the continuous barrier has no gaps around the entire structure.
Pros & Cons
Advantages
- Highly effective against subterranean termites
- Colony elimination through transfer effect
- Long-lasting soil residual (up to 10+ years)
- No evacuation required
- Proven track record in the industry
Limitations
- Only targets subterranean termites
- Requires trenching around the foundation
- Not suitable for drywood termites
- Soil must allow proper absorption
Best For
- Subterranean termite infestations
- Prevention in high-risk soil areas
- Active mud tube activity at foundation
- Post-construction protection
Ready to Get Started?
Schedule a free inspection and our licensed inspector will confirm whether Liquid Barrier is the right solution for your infestation.
Not sure about costs? See 2026 termite treatment pricing.
Other Treatment Options
Tent Fumigation
The Gold Standard for Whole-Structure Termite Elimination
Orange Oil
Effective, Natural, No Tent Required
Heat Treatment
Kill Termites with Temperature — No Chemicals
Spot Treatment
Precise, Targeted Termite Elimination
Borate Treatment
Protect Wood Before and After Infestation
Microwave
Pinpoint Termite Elimination with Microwave Energy
Electro-Gun
Electrocute Termites on Contact — No Chemicals Needed