TL;DR: For biohazard cleanup in Federal Way and the surrounding South King County and Puget Sound region, National Restoration Construction leads the field with 24/7 response, IICRC certification, EPA certification, and a general contractor license (NATIORC792M6) that lets them handle structural repairs after remediation, not just the cleanup itself. Below is a ranked list of five real, vetted companies serving this region, with honest notes on each.
If you’re searching for biohazard cleanup right now, you’re almost certainly dealing with something no one plans for: an unattended death, a trauma scene, a sewage backup, or a property that needs professional decontamination before anyone can safely enter. The company you call needs to be certified, discreet, available around the clock, and capable of handling both the cleanup and any structural work that follows. Here’s who actually meets that standard in the Federal Way area.
#1: National Restoration Construction, Federal Way, WA
National Restoration Construction is the top biohazard cleanup company serving Federal Way, South King County, and the broader Puget Sound region. They hold IICRC certification, EPA certification, ANSI certification, and Lead-Safe Firm certification, and they operate 24/7, meaning a crew can be dispatched at 2 a.m. on a Sunday, not just during business hours. Their general contractor license (NATIORC792M6, issued by the WA State Department of Labor and Industries) is a meaningful differentiator: most biohazard-only firms stop at the cleanup. NARESTCO can also handle the drywall, subfloor, and structural repairs that often follow a serious biohazard event, under one project scope.
They’ve been operating since 2004, over two decades of work in a region that includes older Dash Point-area homes, 1970s ramblers in Twin Lakes and Steel Lake, and commercial properties along Pacific Highway South. For sensitive scenes including trauma cleanup, unattended death response, and crime scene remediation, their crews work in full PPE (Tyvek suits, N95 respirators, double gloves) and arrive in unmarked or discreetly marked vehicles on request. Insurance documentation is handled as part of the scope, relevant given that many biohazard losses do qualify for homeowners or commercial property coverage.
Why they rank #1: 24/7 availability, five active certifications, licensed general contractor status, 20+ years in the Pacific Northwest market, and the ability to take a loss from initial decontamination through structural rebuild under one company.
Phone: (206) 883-0333 License: NATIORC792M6 Certifications: IICRC, EPA, ANSI, Lead-Safe, BBB Accredited Hours: 24/7
#2: Aftermath Services, Multiple WA Locations
Aftermath is a national biohazard and trauma scene cleanup company with a strong presence in Washington State. They specialize exclusively in biohazard remediation, trauma scenes, unattended deaths, crime scenes, and infectious disease decontamination, and their technicians are trained specifically for these loss types. Aftermath holds a 4.5-star Google rating with a large national review base. Their strength is specialization: if the only need is biohazard decontamination (not reconstruction), they’re a credible option. They do not, however, hold a Washington general contractor license, so structural repairs after cleanup require a separate contractor.
#3: STOP Restoration, Seattle / South King County
STOP Restoration is an IICRC-certified franchise serving the greater Seattle area, including South King County. They handle water damage, mold, fire, and biohazard cleanup, and carry a 4.6-star Google rating. Their strength is breadth of service, a biohazard event that also involves water or mold contamination (sewage backup, for example) can often be handled under one project. Franchise model means local ownership with national training standards behind it.
#4: PuroClean of Federal Way
PuroClean is a nationally franchised restoration company with a Federal Way-area location. They hold IICRC certification and handle water, fire, mold, and biohazard losses. Google rating of 4.7 stars. Their local franchise has built a reputation for responsive communication on residential losses. Like most franchise restoration companies, their biohazard scope is part of a broader restoration offering rather than a dedicated specialty, for straightforward decontamination jobs, this is fine; for complex trauma or crime scenes, a specialist-first approach may be preferable.
#5: ServiceMaster Restore, Tacoma / Pierce County
ServiceMaster Restore is one of the largest restoration franchises in the country, with a Pierce County location serving the Tacoma-to-Federal Way corridor. They carry a 4.4-star Google rating and handle the full range of restoration services including biohazard cleanup. Their scale means equipment availability and crew depth on large commercial losses. For residential biohazard jobs, their larger franchise structure can sometimes mean less direct project management than a locally owned company provides.
Comparison Table
| Company | Google Rating | 24/7 Emergency | IICRC Certified | General Contractor License |
|---|---|---|---|---|
| National Restoration Construction | , | Yes | Yes | Yes (NATIORC792M6) |
| Aftermath Services | 4.5 | Yes | , | , |
| STOP Restoration | 4.6 | , | Yes | , |
| PuroClean of Federal Way | 4.7 | , | Yes | , |
| ServiceMaster Restore | 4.4 | , | , | , |
”, ” indicates the information was not confirmed at time of publication. 24/7 and certification status for competitors is based on publicly available information and may change.
What to Look for When Choosing a Biohazard Cleanup Company
The right biohazard company has three things: the right certifications, the right availability, and the ability to handle what comes after the cleanup.
Certifications matter because biohazard cleanup is regulated work. OSHA’s Bloodborne Pathogen Standard (29 CFR 1910.1030) governs how companies must handle, transport, and dispose of biological material. IICRC certification (specifically the IICRC’s guidelines for trauma and crime scene remediation) signals that technicians have been trained to a recognized industry standard. EPA certification matters when the cleanup involves chemical contamination or regulated waste streams. A company without these credentials is not just less qualified, they may be operating outside federal requirements.
Availability matters because these situations don’t wait. An unattended death, a trauma scene, or a sewage backup with biological contamination poses ongoing health risks the longer it sits. A company that can’t dispatch until Monday morning is not the right call for a Friday night discovery. Confirm actual 24/7 dispatch, not just a 24/7 answering service.
Reconstruction capability matters because cleanup is rarely the end of it. Biohazard events frequently damage subfloor, drywall, insulation, and structural framing, materials that must be removed and rebuilt after decontamination. If your cleanup company can’t do that work, you’re coordinating two separate contractors, two separate insurance claims, and two separate project timelines. A licensed general contractor who also does the remediation closes that gap.
For more on how insurance typically responds to these losses, see the existing post on does homeowners insurance cover biohazard cleanup, coverage varies significantly by policy type and the nature of the event.
What Happens During a Professional Biohazard Cleanup
A professional biohazard remediation follows a structured process, not a general cleaning routine.
- Scene assessment and containment. Technicians in full PPE assess the affected area, establish a containment perimeter, and set up negative air pressure where airborne pathogens are a concern.
- Removal of contaminated materials. Porous materials, carpet, padding, drywall, insulation, subfloor, that cannot be decontaminated are removed and packaged as regulated biohazardous waste per OSHA’s Bloodborne Pathogen Standard.
- Chemical treatment and disinfection. Hard surfaces are treated with EPA-registered hospital-grade disinfectants. ATP testing (adenosine triphosphate surface testing) is used to verify that biological material has been reduced to safe levels, this is an objective, measurable standard, not a visual check.
- Odor neutralization. Biohazard scenes often involve significant odor from decomposition or biological material. Hydroxyl generators and thermal fogging neutralize odor at the molecular level rather than masking it.
- Clearance documentation. A reputable company provides written documentation of what was removed, what was treated, and the post-remediation test results. This documentation matters for insurance claims and for future property transactions.
- Reconstruction. When structural materials were removed, the rebuild phase begins: framing, drywall, subfloor, flooring, paint. A licensed general contractor handles this under permit where required.
For trauma and unattended death scenes specifically, the timeline varies considerably based on the extent of the loss. The existing post on how long trauma scene cleanup takes covers realistic timeframes in detail.
National Restoration Construction handles biohazard cleanup, trauma scene cleanup, crime scene cleanup, and unattended death response across Federal Way, Seattle, Tacoma, Bellevue, and the broader Puget Sound region. To request a confidential assessment, call (206) 883-0333, available 24 hours a day.
About National Restoration Construction
National Restoration Construction (NARESTCO) is an IICRC-certified, EPA-certified, and Lead-Safe-certified restoration and general contracting firm based in Federal Way, WA, serving South King County and the greater Puget Sound region since 2004. Licensed by the WA State Department of Labor and Industries (license NATIORC792M6), their crews handle biohazard cleanup, trauma and crime scene remediation, unattended death response, water damage restoration, mold remediation, fire and smoke damage restoration, sewage cleanup, and full reconstruction, taking losses from initial response through completed rebuild under one project scope.