Bed Bug Heat Treatment in St. Louis
One treatment. One day. Complete elimination. Our professional heat equipment fleet reaches every hiding place chemicals can’t — inside walls, mattresses, furniture, and cracks where bed bugs live.
Schedule Heat Treatment (314) 967-2847 (BUGS)
Why Heat <span class='green'>Beats</span> Chemicals
If you have bed bugs, you need them gone — completely, the first time. Chemical sprays alone cannot penetrate deep into wall voids, mattress cores, furniture cavities, and the dozens of cracks and crevices where bed bugs hide. Heat can. It reaches everywhere air can go, killing every life stage — adults, nymphs, and eggs — in a single treatment.
Our owner’s position on this is direct: Chemical-only bed bug treatments are a waste of time. Heat is the primary kill method. Chemistry is the backup that provides residual protection after the heat does its job.
How Our Heat Treatment <span class='green'>Works</span>
Our process is methodical and thorough. We do not cut corners because bed bugs do not forgive shortcuts.
- Preparation: You receive a detailed prep sheet explaining exactly what to do before treatment day. Proper preparation is critical — it determines how effective the treatment will be. Items like heat-sensitive medications, aerosol cans, candles, and certain electronics need to be removed. Closets and drawers should be open so heat can circulate.
- Equipment Setup: Our technicians position professional heaters and commercial air movers throughout the space. We select equipment based on the square footage and layout of your home. Our fleet includes electric heaters, indoor-rated propane units, and a diesel trailer-mounted unit for large jobs.
- Heat to Lethal Temperature: We raise the ambient temperature above 120°F, with typical peaks reaching 135–145°F. All heater units have built-in temperature monitoring. We do not start the clock until every unit confirms the space is at or above 120°F.
- Six-Hour Hold: This is the critical step most companies shortchange. We hold lethal temperatures for a full 6 hours to allow heat to absorb into wall cavities, mattress interiors, furniture frames, and every deep harborage area. Air hits temperature fast — materials inside walls take hours to equilibrate. The 6-hour hold is what makes the difference between killing most bed bugs and killing all of them.
- Chemical Follow-Up: After the heat cycle, we go in with bed-bug-labeled residual products and treat the entire space: mattresses, bed frames, baseboards, cracks and crevices — top to bottom. This provides lasting residual protection that heat alone cannot offer.
Follow-Up <span class='green'>Protocol</span>
A single treatment — no matter how thorough — needs verification. Our follow-up protocol catches anything heat may have missed and detects any re-introduction early.
- 7–10 day follow-up (inspection only): We return to inspect the treated area, install SenSci Volcano bed bug monitors (pitfall-style traps that capture bed bugs for detection), and install mattress encasements if you purchased them. The goal is to identify whether any re-introduction has occurred or whether a cold spot was present during treatment.
- 30–45 day follow-up (full chemical treatment): We return for a complete chemical treatment with bed-bug-labeled product, check all monitors, and perform a full-facility inspection. The 30–45 day mark corresponds to the bed bug reproductive cycle — any eggs that somehow survived would have hatched by now.
Preparation <span class='green'>Steps</span>
You will receive a detailed preparation sheet before your treatment date. Following these instructions is essential for success. Key steps include:
- Remove all people and pets from the treatment area for the full day
- Remove heat-sensitive items: medications, aerosol cans, candles, vinyl records, certain electronics
- Open all closet doors, dresser drawers, and cabinet doors so heat circulates freely
- Pull furniture a few inches away from walls
- Strip beds down to the mattress
- Do not apply any pesticides yourself before or after — let us handle the chemistry
- Leave the home locked but accessible to our technicians for the full treatment duration
Important: If preparation is not completed when our team arrives, the job may need to be rescheduled. Incomplete prep compromises the treatment and wastes everyone’s time.
Professional Heat Fleet
Multiple electric, propane, and diesel units for jobs from single rooms to entire commercial facilities
Full 6-Hour Hold
We don’t rush — cavity absorption takes hours. Our extended hold ensures heat penetrates every hiding place
Heat + Chemical Combo
Heat kills on treatment day. Residual chemistry provides weeks of backup protection after
SenSci Monitoring
Scientifically designed pitfall traps verify complete elimination at follow-up visits
| Feature | Heat Treatment | Chemical Only |
|---|---|---|
| Kills in Wall Voids | ✓ Yes | ✗ No |
| Kills in Mattress Cores | ✓ Yes | ✗ No |
| One-Day Elimination | ✓ Yes | ✗ No |
| Residual Protection | ✓ Yes | ✓ Yes |
| Reaches Every Crack | ✓ Yes | ✗ No |
| No Resistance Issues | ✓ Yes | ✗ No |
| Follow-Up Verification | ✓ Yes | ✗ No |
Chemical-only bed bug treatments are a waste of time and money. Get it done right the first time with professional heat treatment.
Get Heat Treatment QuoteWhy Choose Roberts?
- Extensive Heat Equipment Fleet — Multiple electric, propane, and diesel units to handle jobs from single rooms to entire commercial facilities
- Full 6-Hour Heat Hold — We do not rush the process; cavity absorption takes time
- Combined Heat + Chemical Approach — Heat kills on treatment day, chemistry provides residual protection for weeks after
- Structured Follow-Up Protocol — Two return visits ensure complete elimination
- SenSci Monitoring — Scientifically designed traps verify the job is done
- Transparent Quotes — Detailed written estimate before any work begins — no hidden fees, no surprises
What to Expect
- Free Inspection We confirm bed bug activity and provide an honest quote based on square footage.
- Heat Treatment Day Professional heaters raise your home above 120°F and hold for 6 full hours — killing every life stage.
- Chemical Backup Post-heat residual treatment covers mattresses, baseboards, and cracks for lasting protection.
- Verification Visits Two follow-up visits at 7–10 days and 30–45 days ensure complete elimination.
Service Area
- Jefferson County (Festus, Crystal City, Arnold, Imperial, Barnhart, High Ridge)
- St. Louis County (South County, Mehlville, Oakville, Affton, Kirkwood)
- St. Charles County (St. Charles, O'Fallon, St. Peters, Wentzville)
- St. Francois County (Farmington, Park Hills, Bonne Terre)
- City of St. Louis and surrounding municipalities
Schedule Your Free Estimate
Fill out the form below and we’ll get back to you fast — usually same day.
Frequently Asked Questions
How much does bed bug heat treatment cost?
Pricing is based on the square footage of the treatment area. Every quote includes the initial heat treatment, post-heat chemical treatment, follow-up inspection, and follow-up chemical treatment. Mattress encasements are available as an add-on. Call (314) 967-2847 for a free estimate.
How long does the treatment take?
Plan for a full day. Equipment setup, reaching lethal temperature, the 6-hour hold, and post-heat chemical treatment typically take 8–12 hours total depending on the size of the space. You cannot be in the home during treatment.
Will heat damage my home or belongings?
At 120–145°F, heat treatment is safe for the vast majority of household items, construction materials, and electronics. We provide a prep sheet listing the few items that should be removed (aerosol cans, certain medications, candles, vinyl records). Furniture, clothing, bedding, and electronics like TVs and computers are safe.
Why not just use chemical treatment for bed bugs?
Chemicals cannot reach every place bed bugs hide. They live deep inside wall voids, inside mattress seams, behind electrical outlet covers, inside furniture joints — places a spray simply cannot penetrate. Heat reaches everywhere air can go. We use chemical treatment after heat as a residual backup, but heat is the primary kill method.
Do I need to throw away my mattress?
Usually not. Our heat treatment reaches lethal temperatures inside the mattress. After treatment, we recommend mattress encasements as an added layer of protection and monitoring. We sell and install them at the 7–10 day follow-up visit.
Can bed bugs come back after heat treatment?
Heat treatment eliminates the existing infestation. Re-infestation only occurs if new bed bugs are introduced — from travel, guests, or secondhand furniture. Our follow-up protocol catches any re-introduction early.