“Ron Mattson and his daughter were god-sends for us, and we would not only highly recommend them but trust them with our lives. We've been experiencing immense issues with our home and health, but after the inspection and treatment are already feeling better and feeling safe at home again. Ron was not only knowledgeable, professional, and incredibly thorough, but also extremely kind, honest, and validating of our experience and symptoms. He took his time and care- in work and communication- at both the inspection and remediation work. He was also an invaluable advocate and problem-solver who went above and beyond time and again to provide a solution for us despite tricky parameters. Mold and mold illnesses are a living nightmare, but Ron is truly the ally I would want and trust to be in my corner. It was life-saving work he did, and I'll always remember that. Mìle taing, a thousand thanks.”
Family-Run · NORMI Certified · Northern California
Water Damage Restoration Service in Eureka, CA Whole‑Home Mold Remediation for Northern California
Water damage restoration and mold remediation in Eureka, CA, and across eight counties of the North State, from Crescent City to Red Bluff. 45 five-star reviews, and most homes are treated in one day.
5.0★ · 45 Google reviews
NORMI Certified
Family-run
Available 24/7
Why Choose Us
What makes North State homeowners call us first.
Four things our clients tell us mattered most when they picked North State Pure Maintenance over another company.
5.0 stars from 45 Google reviews
Every review is five stars, written by a real client after the job was done. Read them before you book.
Most homes treated in a single day
Our crew usually finishes a whole-home treatment in one visit, so you're not clearing your calendar for a week.
Independent lab testing, before and after
Air samples go to a third-party lab with no ties to us, both before we treat and after. You get the results in writing, not just our word.
Often no demolition or tear-out
Our vapor process reaches wall cavities, HVAC, and porous materials without cutting into your walls in most cases. Less mess, less rebuild.
Verified Reviews
What Northern California homeowners say after we leave.
5.0★ · 45 Google reviews . Every review comes from a real client, no incentives, no edits.
“I cannot express how grateful I am that my path happened to cross with Ron's. Because of his knowledge, dedication, work ethic and kindness my home is once again a safe place for my family. He truly went above and beyond of what was required. I will forever be thankful for his help.”
“Timely, professional service. Met and exceeded my expectations. Will use this company in the future.”
“They responded really quickly and they did an amazing job! Their team was professional, thorough, and really took care of everything. Highly recommend them if you're looking for a reliable service.”
Get Your Free Estimate
Tell us about your mold problem.
One call or one form gets you a specialist who can explain what's likely causing the mold, what treatment involves, and what it will cost for your property. No obligation, and we answer 24/7.
Call us directly
(707) 879-8928
Two Ways We Start
Inspection first, or repair after the fact.
Environmental Consultant Services: Mold Inspection & Testing in Eureka
Mold inspection and testing in Eureka starts before any treatment does. Mold testing tells us what species we're dealing with and how much of it. Air quality testing checks what's actually in the indoor air, not just what's visible on a wall. Attic mold inspection, basement mold inspection, bathroom mold inspection, and crawl space mold inspection cover the spots homeowners rarely check themselves: the attic where a roof leak pools, the crawl space where coastal humidity collects, the bathroom where a slow drip hides behind tile for months. If you've had treatment done, post-remediation clearance testing gives you a written result confirming the work held. Every sample goes to an independent, accredited lab with no stake in the outcome, so you get a number, not a guess. See how our mold inspection and testing works for homes and businesses across the North State.
Building Restoration Service: Mold Damage Restoration in Eureka
Mold damage restoration in Eureka covers what's left behind after mold has already done damage to drywall, subfloor, framing, or finishes. That's different from a routine mold remediation job: here the moisture and mold caused visible damage that needs to be repaired or replaced, not just treated. We assess the extent of the damage first, so you know what's structural and what's cosmetic before any work starts. Our team coordinates the mold treatment and the repair work together, rather than sending you to a second contractor and hoping the timelines line up. That matters most after a slow leak behind a wall, a failed roof, or water damage from a wet North Coast winter, where the mold problem and the damage problem are really one project. Get a scope for your mold damage repair.
Our Services
Mold services for every part of your property, from Eureka to Redding.
Every service uses the same patented VaPURE™ vapor and the same third-party lab accountability.
Mold Remediation
Our patented VaPURE™ vapor reaches wall cavities, HVAC, and porous materials, not just the mold you can see. Most homes are treated in a single visit, often without demolition.
See how mold remediation worksBlack Mold Removal
Dark-colored mold gets the most calls, and it responds to the same VaPURE™ treatment as any other species. We test first, so you know exactly what you're dealing with.
Learn about black mold removalCommercial Mold Remediation
Offices, rentals, and multi-unit buildings need scheduling that works around tenants and business hours. We scope the job, treat it, and hand over lab-verified results your insurer or property manager can use.
See our commercial mold servicesEmergency Mold Treatment
After a burst pipe or roof failure, mold can start growing within days. We answer 24/7 and move fast to treat the affected area before it spreads further.
Get emergency mold helpMold Prevention
Our antimicrobial protectant stage leaves a barrier on treated surfaces that helps resist new mold growth. Pair it with fixing the moisture source and you're ahead of the next problem.
See our mold prevention approachOdor Removal
Musty, pet, smoke, and biohazard odors each point to a different cause. The same VaPURE™ process we use for mold treats stubborn household odors at the source.
Learn about odor removalEvery service, one click from here.
Where We Work
Eight counties, one family-run team.
We're based in Eureka and treat homes and businesses across Northern California, from the Humboldt coast to Redding, the Shasta Cascade, and the Modoc Plateau.
Humboldt County
Eureka, Arcata, McKinleyville, Fortuna, Ferndale, Rio Dell, Trinidad, Garberville, Bridgeville
Del Norte County
Crescent City and the far North Coast
Trinity County
Weaverville and the Trinity Alps communities
Siskiyou County
Yreka · Mount Shasta · Weed
Shasta County
Redding · Anderson · Shasta Lake
Modoc County
Alturas and the Modoc Plateau
Lassen County
Susanville and the surrounding high country
Tehama County
Red Bluff · Corning
Who We Are
A family-run team, licensed and lab-verified.
North State Pure Maintenance is a family-run business based in Eureka, run by Ron Mattson and his daughter Zoe. Ron is a NORMI Certified Sanitizing Professional and an affiliate member of the Humboldt Association of REALTORS®, and the company is licensed to use Pure Maintenance's patented VaPURE™ technology across Northern California. Every job is backed by independent third-party lab testing, so the result on paper matches what you see in your home.
Meet the team · Review our certifications · See the research behind our process
Frequently Asked
What people ask before they call us.
It depends on the size of the affected area, how many rooms are involved, and whether the mold has caused damage that needs repair on top of treatment. We give you a written estimate after a free inspection, before any work starts, so there are no surprises.
Most homes are treated in a single day. Larger properties or commercial sites can take longer, and we will tell you the expected timeline during your free inspection.
You do not need to move out, but everyone, pets included, needs to be out of the house while the VaPURE™ treatment runs. Most homes are done in a single day and you can come back in as soon as we finish. Your technician will walk you through the timing before treatment day.
Yes. Air and surface samples go to an accredited third-party lab with no connection to North State Pure Maintenance. You get the lab's own report, not just our assessment.
We stand behind our work with a workmanship guarantee. Ask us about re-treatment options when you book your free inspection, and we'll walk you through what's covered for your property.
Yes. We treat single-family homes, rental units, multi-unit residential buildings, and commercial properties across Humboldt County and Northern California, with scheduling built around tenants and business hours.
See more frequently asked questions about mold remediation, testing, and odor removal.
Ready When You Are
Ready to solve your mold problem?
We answer 24/7. Call (707) 879-8928 for a free inspection, or send us a message online.