Choosing the right termite treatment depends on your specific situation - the type of termite, severity of infestation, construction type, environmental concerns, and budget. This guide compares all major termiticide approaches with honest assessments of when each one is the right choice.
Subterranean termites (most common - 95% of US infestations), drywood termites (primarily coastal/southern), dampwood termites (Pacific Northwest). Each type requires a different treatment approach.
See individual product pages for detailed information on each active ingredient and brand.
Subterranean termite treatment options:
| Method | How It Works | Speed | Duration | Cost Range | Best For |
|---|---|---|---|---|---|
| Liquid barrier (fipronil/Termidor) | Chemical barrier in soil around foundation; transfer effect kills colony | Stops damage immediately; colony death in weeks | 10+ years per application | $1,200-2,500 | Active infestations needing fast response |
| Bait stations (Sentricon) | In-ground stations monitored quarterly; workers carry bait to colony | Colony elimination in 2-6 months | Ongoing protection (annual service) | $1,500-3,000 install + $250-400/year | Preventive, eco-sensitive, well construction |
| Liquid barrier (bifenthrin/permethrin) | Repellent chemical barrier - termites avoid treated soil | Immediate barrier | 5-7 years | $800-1,800 | Budget option, no colony elimination |
| Wood treatment (Boracare/Tim-bor) | Borate solution penetrates wood, making it toxic to termites | Immediate protection of treated wood | Life of the wood (permanent) | $2-4 per linear foot | New construction, crawlspace, exposed wood |
The Termidor advantage (and why it dominates):
Fipronil (Termidor SC) is the #1 professional termiticide because of its unique transfer effect. Unlike repellent barriers (bifenthrin, permethrin) that only keep termites out, Termidor is non-repellent - termites walk through it unknowingly, pick up a lethal dose, and transfer it to nestmates through grooming. This eliminates the colony, not just the foragers hitting your foundation. In field trials, Termidor provided 100% control at every test site over 15+ years.
Sentricon vs Termidor:
This is the most common debate in termite control. Both are highly effective but work differently. Sentricon eliminates the colony through baiting over 2-6 months and provides ongoing monitoring/protection. Termidor creates an immediate barrier AND eliminates the colony through the transfer effect. Many professionals recommend Termidor for active infestations (faster protection) and Sentricon for preventive monitoring (continuous detection). Some homeowners use both - Termidor for the immediate threat and Sentricon for long-term monitoring.
Drywood termite treatment:
Drywood termites live entirely inside wood (no soil contact), so soil treatments do not work. Options include: whole-structure fumigation with sulfuryl fluoride (Vikane) for severe infestations, localized treatment with foam or injectable termiticides for small infestations, or heat treatment (raising wood temperature to 120F+ for 35 minutes). Fumigation is the only option that guarantees 100% elimination of drywood termites throughout the entire structure.
What about DIY termite treatment?
Liquid termiticide concentrates (Taurus SC, generic fipronil) are available to homeowners online. However, proper application requires specialized equipment (drill, injection rod, high-volume sprayer), knowledge of foundation construction, and the ability to apply hundreds of gallons of solution in a precise trench pattern. Inadequate treatment leaves gaps that termites will find. For most homeowners, the cost of professional treatment is justified by the stakes involved - the average termite damage repair costs $3,000-8,000.