The decision is not about money first
Most people frame this as a price question: what does a pro charge versus what will the products cost me? Extension guidance frames it the other way around. UC IPM's Hiring a Pest Control Company walks homeowners through the decision in this order — identify the pest, learn what effective management actually requires, then decide whether you have the skills, equipment and time to carry it out (UC IPM Pest Notes 74125). Cost only becomes the deciding factor once you know what the job involves.
That matters because the failure mode of DIY pest control is rarely "spent too much on a can of spray." It is spending weeks on a treatment that could not have worked — the wrong product, the wrong placement, or a species that needed equipment no homeowner owns — and then paying a professional anyway, on top of the damage that accumulated in the meantime.
The "equipment trap" in numbers
- Termites: a soil treatment means injecting termiticide a set depth below grade, often through concrete. That is a trencher, a masonry bit and a rodding tool — not a watering can. Termites are on UC IPM's short list of pests that require specialist licences, equipment and products.
- Bed bugs: effective treatment depends on locating every harbourage within a few feet of sleeping areas, then treating seams, frames and cracks. A commercial steamer alone runs into the hundreds of dollars, and the labour is inspection-heavy — the same reason professionals charge by the room.
- Wildlife and large trees: trapping or excluding animals, and treating pests high in a canopy, are explicitly professional-territory jobs.
Where the money actually goes
A fair comparison adds four lines that a product receipt never shows. The calculator above lets you set them; here is what to put in each one.
| Cost line | DIY side | Professional side |
|---|---|---|
| Products and equipment | Retail packs, applicator, PPE; dispensers and traps bought once but sized wrong | Included in the service price; they hold the professional-use products you cannot buy retail |
| Inspection | Your own time, plus the risk of treating the wrong species | May be charged as a separate fee — you should receive a written diagnosis and pest identification for it |
| Repeat treatments | Each failed attempt costs the product again, and time | Recurring plans and monitoring visits cost more per visit; UC IPM notes IPM services may cost more up front but often control the pest better long-term |
| Damage during the delay | Fabric, timber, bedding and food losses continue while you work through the problem | Same losses, but measured in days rather than weeks |
| Your labour | Real, and the line most people enter as zero | The thing you are actually buying |
Which pests are DIY-appropriate
| Situation | Realistic DIY path | Go professional when… |
|---|---|---|
| Ants, roaches, pantry pests | Sealed baits, sanitation, exclusion, monitoring — the standard IPM toolbox | Populations persist after correct baiting and cleaning |
| Occasional invaders (boxelder bugs, springtails, clover mites) | Seal entry points, control moisture, vacuum — often no chemical needed | Rarely; these are exclusion problems |
| Termites | Not a realistic homeowner job for treatment — inspection and moisture control only | As soon as termites are confirmed; this is specialist territory |
| Bed bugs | Encasements, hot laundering, vacuuming — viable only for a few bugs caught early | Any established infestation, especially in multi-unit housing |
| Wildlife in the structure | Exclusion work only where safe and legal | Trapping — licensed work in most jurisdictions |
If you hire: the five questions that separate quotes
- Get at least three quotes and ask each company for a written diagnosis naming the pest. Where state law applies, a structural pest control company must identify the target pest before applying anything — if a quote names a product but not a species, ask again.
- Ask what happens after the spray. A good answer mentions monitoring, trapping, baiting or exclusion — the IPM measures — alongside any knockdown application. UC IPM's guidance is to request those alternatives rather than accept a routine spray schedule by default (What is IPM?).
- Ask for the paper trail. Before treatment starts, a registered structural company should provide written notice of the pest being controlled, the product and active ingredient, and how often it will be applied. Labels and safety data sheets are available on request.
- Ask where the chemicals go. Perimeter sprays can be washed away by irrigation or rain; for indoor work, ask about spot treatment in cracks and crevices rather than blanketing a room your pets and children use.
- Verify the licence with your state's structural pest control board, and check whether the company works to an IPM certification. Verification is free and takes a minute.
After the treatment starts
Two rules keep the money from being wasted. First, keep a written record of what you observe between visits — the IPM pest log is designed for exactly that, and it is how you tell whether the treatment is working. Second, do not apply your own pesticides while under a service contract: it can interfere with the technician's products and makes the result impossible to interpret. Do your part with sanitation and exclusion, which is what the professional will ask for anyway.
Still deciding whether the pest in front of you is even the one you think it is? Run it through the pest ID wizard first, check any chemical you plan to use against your pets with the pet safety checker, and if you land on bed bugs, price it properly with the bed bug cost calculator and the heat treatment cost guide.
Sources for this page: UC IPM Pest Notes 74125, Hiring a Pest Control Company (decision steps, professional-territory pests, inspection and written-notice requirements, IPM cost trade-offs).