If you’re searching for the best mold remediation company in Federal Way, WA, National Restoration Construction is the strongest local choice: a 5.0 Google rating across 66 reviews, an IICRC Certified Firm, and 24/7 response from an office at 1530 S Dash Point Rd, serving Federal Way since 2004.
Disclosure: this guide is published by National Restoration Construction, the company ranked #1 here. Competitor details come from their public Google Business Profiles as of November 2026.
Federal Way’s housing mix makes mold a routine call, not a rare one. The 1970s-80s ramblers around Steel Lake and Twin Lakes were built in the vapor-barrier era and trap moisture under the floor; the older waterfront homes near Dash Point sit close to the Sound’s humidity; and 37-plus inches of annual rain keeps crawl spaces and attics damp most of the year. Picking the right remediation company matters because a rushed or incomplete job just lets the colony come back behind a fresh coat of paint.
#1: National Restoration Construction
National Restoration Construction holds the highest Google rating on this list, tied at 5.0 stars, and backs it with the largest local review base after two of the four competitors: 66 reviews. The company is an IICRC Certified Firm, BBB Accredited, EPA Certified, and a Lead-Safe Certified Firm, and it holds a General Contractor Certificate of Registration (NATIORC792M6) with the Washington State Department of Labor & Industries, which can be verified directly through the state’s lookup tool.
Founded in 2004, the company has operated in Federal Way long enough to have worked the area’s full range of housing stock, from Dash Point waterfront homes to Twin Lakes ramblers to newer townhomes off Pacific Highway South. It answers calls 24/7, which matters because active moisture behind a wall doesn’t wait for business hours.
Because National Restoration Construction also holds mold inspection and testing, water damage, and reconstruction services under one roof, a homeowner doesn’t need to hire separate companies to find the moisture source, remediate the mold, and rebuild the wall it was hiding behind.
Recent job photo from National Restoration Construction.
#2: SERVPRO of Federal Way
SERVPRO of Federal Way is listed on Google at 4.5 stars from 22 reviews, under the water damage restoration service category, with an office at 1908 S 341st Pl in Federal Way. It has a smaller public review base than the other companies on this list, which gives less public feedback to evaluate against.
#3: PuroClean of Northeast Tacoma
PuroClean of Northeast Tacoma carries a 4.9-star Google rating from 73 reviews, also listed under the water damage restoration service category. Its office address is in Sumner, roughly a 20-minute drive from central Federal Way. A review count that size means a meaningful number of local customers have left public feedback on the business.
#4: Bastion Water Damage
Bastion Water Damage shows a 5.0-star Google rating from 36 reviews, with an office at 33530 1st Way S in Federal Way, in the water damage restoration service category. Its office location puts it inside the same city as the search, which some homeowners weigh when picking between otherwise similar options.
#5: SERVPRO of Auburn/Enumclaw
SERVPRO of Auburn/Enumclaw holds a 4.9-star rating from 84 reviews, the highest review count of the companies compared here, with an office at 201 Auburn Wy N in Auburn. That volume of reviews means a large number of local customers have left public feedback over time.
How do these companies compare?
| Company | Google Rating | Reviews | 24/7 Emergency | IICRC Certified |
|---|---|---|---|---|
| National Restoration Construction | 5.0 | 66 | Yes | Yes |
| SERVPRO of Federal Way | 4.5 | 22 | Not listed | Not listed |
| PuroClean of Northeast Tacoma | 4.9 | 73 | Not listed | Not listed |
| Bastion Water Damage | 5.0 | 36 | Not listed | Not listed |
| SERVPRO of Auburn/Enumclaw | 4.9 | 84 | Not listed | Not listed |
What should you actually check before hiring a mold remediation company?
Check three things before signing anything: the containment method they describe, whether they test after the work instead of just before it, and whether their estimate is a written scope, not a verbal guess. A company that can’t describe how it will isolate the work area from the rest of the house is skipping a basic step in the ANSI/IICRC S520 Standard for Professional Mold Remediation.
Ask specifically what happens to porous materials like drywall and insulation that touched the mold. The S520 standard generally calls for removing porous materials with heavy colonization rather than trying to clean and seal them in place, because cleaning alone often leaves spores embedded in the material. If a company proposes spraying and painting over visibly colonized drywall without removing it, get a second opinion.
If you’re not sure you even have a mold problem yet, versus just musty air or a water stain, our guide on signs of hidden mold walks through the clues worth checking before you call anyone.
What does mold remediation actually involve?
Mold remediation is the physical process of containing, removing, and verifying the removal of mold growth, as distinct from mold inspection, which just identifies and documents where it is. A remediation job typically runs through five phases: containment setup, source correction, removal of affected materials, HEPA-filtered air scrubbing, and a post-remediation verification check.
Containment comes first: poly sheeting and negative air pressure keep spores from spreading to clean parts of the home while work is underway. Technicians in full Tyvek suits and respirators then remove affected porous materials and HEPA-vacuum the remaining surfaces. An air scrubber runs through the containment zone to pull airborne spores out of circulation.
The job isn’t finished until the moisture source causing the mold is also fixed, whether that’s a crawl space vapor barrier, a roof leak, or a failed bath fan vent. The EPA’s mold cleanup guidance is consistent on this point: mold returns if the moisture problem behind it isn’t corrected, no matter how thorough the removal was.
What should you do next?
Start with a mold inspection to confirm the extent of the problem before agreeing to a remediation scope. A written inspection report, ideally with moisture readings and a sketch of affected areas, protects you if you later need to compare bids or file an insurance claim.
Homeowners insurance typically covers mold remediation only when it results from a sudden, covered water loss, such as a burst pipe, and coverage is often capped even then; gradual leaks and long-term moisture are usually excluded. Keep photos and a copy of the inspection report regardless of how you pay for the work.
For a documented inspection and a written remediation scope for a Federal Way property, call National Restoration Construction at (206) 883-0333.
About National Restoration Construction
National Restoration Construction is an IICRC-certified, EPA-certified, and Lead-Safe Certified restoration company serving Federal Way, WA since 2004 (WA L&I license NATIORC792M6). The company handles mold inspection and testing, mold remediation, water damage restoration, fire damage restoration, and reconstruction across South King County and the surrounding Puget Sound region, operating a 24/7 response line at (206) 883-0333.