The most common question we get from a homeowner who just confirmed bed bugs: “I read heat treatment is best. Should I just do that?”
Sometimes yes. Sometimes no. Here’s how the decision actually goes.
How each treatment works
Heat treatment raises the temperature in the affected rooms to 120–135°F and holds it there for 4–6 hours. Bed bugs at every life stage — eggs, nymphs, adults — die at sustained temperatures above 118°F. One visit, one application, the building doesn’t need a second round.
Chemical treatment is targeted application across cracks, crevices, and known harborage zones. Adults and nymphs die on contact or shortly after. Eggs survive the initial application — the chemistry doesn’t kill what hasn’t hatched yet. So chemical treatment requires 2–3 visits over 3–4 weeks to break the life cycle.
When heat wins
- Single-family home, contained infestation. You can vacate for the day. The whole house heats evenly. One visit, done.
- Higher fabric load — lots of upholstered furniture, drapes, carpet. Chemical has to penetrate all of that; heat doesn’t care.
- Sensitive occupants — pregnancy, infants, certain medical conditions. Heat leaves no residue.
- You want it over fast. Heat is one visit; chemical is three or four.
When chemical wins
- Multi-unit building. You can’t reliably heat one apartment without affecting neighbors. Even with high-quality insulation, heat bleeds laterally. Building codes in many Lakeland properties don’t allow it.
- Specific items you can’t move — antique wood, certain electronics, anything in the do-not-heat list. Chemical lets us treat around these zones.
- The infestation is widespread but low-density. Chemical’s residual effect (the product keeps working for weeks) catches the slow burn that one-shot heat might miss.
- Budget constraint. Chemical treatment of a one-bedroom in Lakeland starts at $599. Heat treatment of the same space starts at $899. The math matters.
What we don’t recommend
Steam treatment as standalone. Steam kills bed bugs it touches directly. It can’t penetrate wall voids, mattress seams below the surface layer, or wood cracks below 2–3 mm. Useful as an adjunct; not a treatment.
DIY foggers (“bug bombs”). They scatter the colony into wall voids the fog can’t reach. The infestation comes back in 3–6 weeks, worse, deeper, and harder to treat.
Over-the-counter sprays. Eggs survive, the survivors develop resistance to the active, and you’ve just trained the next generation.
The inspection picks for you
Before we quote either treatment, we run a 45–60 minute inspection. We check the obvious zones (mattress seams, box-spring tag, headboard joints) and the non-obvious ones (alarm-clock interiors, behind picture frames, electrical outlet covers near the bed). The plan we quote names the species, the building type, the fabric load, and the cost of each option — heat and chemical, side by side.
Full bed bug service scope is on our bed-bug treatment page.
Part of the Lakeland Pest Pros Pest Library.
