Re-Treatment vs Spot Treatment for Termites

When termites return after an earlier treatment, or when new signs appear in one room, a provider may suggest either a localised spot treatment or a full re-treatment of the building. The two differ in scope, cost and effect, and choosing wrongly can mean the problem comes back.

This guide explains the difference and how to decide.

The short answer

Spot treatment targets a limited area where activity is found, such as one door frame, a wardrobe or a section of wall, and is suitable when termites are confined, the original barrier is otherwise intact and the cause is local. Full re-treatment redoes the soil and structural barrier around the whole building, and is more appropriate when the original treatment has aged or was incomplete, activity appears in several places, the barrier was disturbed or the warranty and inspection advise it. An inspection should decide, not price alone.

Spot treatment

• What it is: Localised drilling, injection and wood treatment around the affected spot.
• Suits: Isolated activity, recent treatment, a clearly local cause, such as a leak or a disturbed patch.
• Pros: Lower cost, less disruption, quicker.
• Cons: May miss other activity; does not renew the whole barrier.

Full re-treatment

• What it is: Treating the whole building's soil and structural barrier again, usually with drill-and-fill and perimeter treatment.
• Suits: Widespread or repeated activity, old treatment, major disturbance of soil, or an incomplete first treatment.
• Pros: Renews protection across the building.
• Cons: Higher cost and more disruption.

How to decide

1. Extent: One spot or several areas?
2. Age of the original treatment: Recent or years old?
3. Cause: A local leak, a disturbed area or a general barrier failure?
4. History: Has it recurred after spot treatments?
5. Warranty: What does it cover and require?
6. Inspection findings: Hidden activity found through detailed inspection.

Questions to ask your provider

• Why do you recommend this option?
• What did the inspection find, and where?
• What are the risks of spot treatment, and the benefits of full re-treatment?
• How does each affect my warranty?

Warning signs that spot treatment is not enough

• Activity returns in new places soon after.
• Several rooms or floors show signs.
• The original treatment is old or its records are missing.
• Major work has disturbed the soil.

When to call a professional

Ask for a documented inspection with findings and photos, then compare scopes. Be wary of recommendations made without inspecting.

Frequently asked questions

Is spot treatment cheaper in the long run?

Only if the problem is truly local. Repeated spot treatments can cost more.

Does full re-treatment guarantee no termites?

No treatment is a guarantee, but it renews the barrier.

Will my warranty cover both?

It depends on the terms. Ask.

How soon can I tell it worked?

Activity usually declines over days to weeks. A follow-up inspection confirms.

This guide is part of IPest's complete resource on termite control. For identification help, prevention and treatment options, see our full termite treatment guide for Bangalore.