Heat treatment kills bed bugs at every stage — eggs included — in a single visit, without asking you to throw out the mattress or move into a hotel for three weeks. That is the appeal, and it is real. But it only works when the room actually reaches and holds lethal temperature everywhere, including inside the box spring, behind the baseboard and under the carpet tack strip. Most heat jobs that fail did not fail because heat doesn't work. They failed because someone set up two heaters, walked away, and never checked the cold corners.
Crews arrive with electric or propane heaters, high-volume fans and remote temperature sensors, then bring the treatment area up to roughly 120 to 135 degrees and hold it there for several hours. Sensors go in the places bugs retreat to — inside the mattress seam, the sofa frame, a dresser pushed against an exterior wall — not just in the middle of the floor, where it's always hottest. Fans get moved repeatedly during the hold to push heat into the cold pockets. Alongside the heat, a technician works the furniture: opening drawers, standing mattresses on edge, pulling frames away from walls, and often applying a residual product along baseboards so anything that flees a heated room into a wall void doesn't simply walk back in.
Your part is preparation, and it matters more than people expect. Aerosols, pressurized cans, candles, medications, vinyl records, musical instruments, houseplants and anything you'd call irreplaceable come out before the heat goes on. Plastic blinds and cheap wall art can warp. You'll be out of the home for the full treatment and the cool-down, so plan the better part of a day. In an apartment or a two-family in Roseville or over in Eastpointe, ask early whether the neighboring unit needs inspecting — bed bugs travel through shared walls and outlets, and treating one side of a duplex is how a job turns into three jobs.
Square footage drives the estimate, but so does power. A house with adequate electrical service heats differently than a 1950s bungalow where the panel can't support multiple heaters, which means propane equipment and a different setup. Clutter adds hours; a bedroom packed floor to ceiling with stored boxes takes much longer to bring to temperature than an empty one. Whole-home treatment costs more than isolating two bedrooms, and the right call depends on how long the infestation has been running and whether you've been sleeping on the couch — which spreads them.
Before you book anyone, ask how many temperature sensors they place and whether you get to see the readings. Ask whether they treat adjacent rooms or just the infested one. Ask what residual is applied and where. Ask what happens if you still see activity in two weeks — a reputable outfit will tell you their follow-up policy up front rather than after.
Night-Terror Terminators works with licensed contractors, offers free estimates, and has same-day availability when the schedule allows, covering Roseville along with St. Clair Shores, Fraser, Warren, Clinton Township and Mount Clemens. Several payment methods are accepted. Call to talk through your situation — the rooms affected, how long you've noticed bites, whether it's a rental — and get an estimate. Office hours are Monday through Friday, 8AM to 6PM.