Most pest problems don’t require a professional. A wasp nest you can reach safely, a single ant trail in the kitchen, the moth that flew through an open door — handling these yourself is usually fine. The pest problems that do require a professional are mostly: structural pests, vector pests, infestations that have established beyond visible signs, and species that resist consumer-grade chemistry. The trick is knowing which category your problem falls in.
Below is an honest framework for when DIY is the right call and when calling a pro will save you money, time, and structural damage. Industry incentives push pros to oversell; YouTube tutorials push DIY enthusiasts to underestimate. The truth is in between.
When DIY is the right call
Single wasp nests in accessible locations. Wasp and hornet spray from a hardware store, applied to a nest you can reach safely at night when wasps are inactive, kills the colony reliably. Cost: $8. Effort: 5 minutes. No reason to pay $150 for the same outcome.
A specific ant trail in the kitchen. Bait stations targeted to the trail (Terro liquid baits for sugar ants, Maxforce gel for sugar/protein-omnivorous species) work in 7–14 days. Cost: $15. Effort: identifying the right bait for the species.
Moth, beetle, or pantry pest in a single location. Identify the species (the internet is fine for this), throw out the source, clean the area, replace with sealed containers. Cost: $5 for new containers. Effort: 30 minutes.
A single mouse you saw run across the kitchen floor. Snap traps from any hardware store work. Place them along walls (mice run along edges). Use peanut butter, not cheese. Cost: $10. Effort: 1 evening.
Routine prevention. Caulking gaps around utility penetrations, sealing weep holes with mesh, addressing drainage, keeping landscaping pulled back from the foundation. These are home maintenance tasks the homeowner can do better than a pest control company can.
When DIY is a waste of money
Scorpions in west Austin. Over-the-counter sprays don’t work on scorpions because their cuticle is too tough for consumer-grade pyrethrins. The ultrasonic devices don’t work. The “scorpion zapper” lights don’t work. You’re spending money on theater.
Mosquitoes in central or south Austin. A single homeowner’s yard treatment with hardware-store products is overwhelmed within days by mosquitoes from neighbor properties, the surrounding area, and the on-property breeding sources you probably haven’t identified. The work that reduces residential mosquito pressure requires source identification and professional-grade products — neither of which the OTC market provides.
Termite control of any kind. There is no consumer-grade product that works against subterranean termites at the colony level. The DIY termite “treatments” sold at hardware stores are repellents that push the termites to a different spot on the structure, where they continue feeding undetected.
Roach infestations beyond a few sightings. Where you see one roach, there are dozens you don’t. Consumer pyrethroid sprays push roaches into wall voids without killing the population. The fipronil-based or indoxacarb baits sold professionally work; the hardware store equivalents are weaker and require precise placement most homeowners get wrong.
When DIY makes the problem worse
Bed bugs. Almost every DIY bed bug attempt fails. Worse, foggers and consumer sprays scatter the population into wall voids and adjacent rooms, making the infestation harder and more expensive to treat. If you suspect bed bugs, do not bug-bomb. Call a specialist for inspection.
Rodent baiting without exclusion. Rodenticides kill rodents but if used without exclusion work, you get a dead-rodent smell in the walls, secondary poisoning of pets and wildlife that eat the carcasses, and a renewed infestation as soon as the bait runs out.
Honey bee removal. Killing a honey bee colony in a wall produces a wax-and-honey mess that becomes a long-term moisture and pest problem inside the structure. Honey bees should be removed live by a beekeeper or professional removal service. Note: APC does not handle bees; refer out.
When to call a pro: a checklist
- Termites — any evidence, any time
- Scorpions in living spaces — any frequency
- Rodents — any evidence beyond a single mouse
- Bed bugs — confirmed or strongly suspected
- Recurring cockroach activity
- Recurring mosquito pressure (creek-adjacent or park-adjacent properties)
- Wasp or hornet nests in inaccessible locations
- Brown recluse confirmed in living spaces
- Any commercial property where documentation is required
- Real estate transaction inspection
For everything else, start with appropriate consumer products and only escalate to a professional if the problem persists or grows.