Heat treatment takes a room to 120–135°F and holds it there long enough to kill every bed bug life stage, eggs included, in a single visit. Heat rigs reach Olympia, but fewer operators carry them than in the Seattle and Tacoma corridors — expect to book further ahead than you would for chemical treatment.
Why heat finishes in one visit
Bed bug eggs are the reason chemical treatment needs a follow-up. Residual products kill the insects they contact but do not reliably reach eggs inside a seam or a wall void, so a second visit is scheduled to catch the hatch at day six to ten. Heat has no such gap: sustained core temperature above roughly 120°F is lethal to eggs and adults alike, which is why a competent heat job is finished the day it starts.
That single visit is what you are paying the premium for. Judge a Olympia heat quote on whether it includes a post-treatment verification visit and what happens if activity reappears inside the warranty window.
What heat costs in Olympia
Heat runs roughly $400 to $900 per room in Washington, against $270 to $775 per room for chemical work across two or three visits. A whole home typically lands between $1,000 and $4,000. Where a property sits in the range is set by room count, clutter and access, not by how badly the technician wants the job.
What heat can damage
A room at 130°F is hard on some contents, and a company that does not mention this before the job has not thought about your property. Candles, crayons, vinyl records, aerosols, pressurised containers, some cosmetics, houseplants, medication and anything with a lithium battery come out before the rig goes in. Musical instruments and solid-wood antiques can move or check at those temperatures.
The statewide heat treatment page carries the full removal list and the preparation sequence.
Covered ZIP codes in Olympia
- 98501
- 98502
- 98505
- 98506
- 98512
- 98513
- 98516
Nearby coverage
Companies quoting Olympia generally travel across the Thurston county area.
- Lacey
- Bucoda
- Littlerock
- Rainier