“We cannot thank Ron and his daughter enough for all the remediation work they did! When we had Ron come out before I even showed him around the house we talked for about 30 minutes. He wanted to know what I was experiencing in the house since I had been suffering from mold sickness. He was determined to find and kill things off. They identified a couple of spots but the big culprit was under our kitchen sink! We also had mold growing in our HVAC system!! Ron was so kind and he really cares about his clients he set up an action plan for us to follow as well as aftercare instructions so we don’t experience this again. Thank you Ron for your knowledge and expertise!”
Family-Run · NORMI Certified · Eureka, CA
Water Damage Restoration & Mold Remediation in Eureka, CA
Water damage restoration and mold remediation in Eureka, CA: 44 five-star reviews, most homes treated in one day. Call now.
5.0★ · 44 Google reviews
NORMI Certified
Family-run
Available 24/7
Why Choose Us
What makes Eureka homeowners call us first.
Four things Eureka homeowners tell us mattered most when they picked North State Pure Maintenance over another company.
5.0 stars from 44 Google reviews
Every review is five stars, written by a real Eureka homeowner 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 Eureka homeowners say after we leave.
5.0★ · 44 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.”
“This is a company who truly care and go above and beyond. Ron did a very thorough job making sure every inch of our house was taken care of. We were impressed with the result and highly recommend this company to everyone needing mold remediation. Thank you North State Pure Maintenance!”
“If I could give Ron and his daughter 10+ ⭐️ I would. Ron was a ray of sunshine in an attic leak going on for over 3 years. Even though he was the founder of mold in our home, I couldn’t have been more upset or thankful for his expertise. Ron’s process is very thorough and everything is explained in the average persons vocabulary. Ron let us know exactly what he was doing and why. It was definitely a process, never realized how much of a process. After 3 long months of our home being a construction zone we finally got the call today that after testing, removing drywall and fogging the mold in our home we are finally in the clear and are breathing safely. Thank you so very much!!!”
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 Eureka homes and businesses.
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 Eureka's wet winters, 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 Eureka property.
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 Eureka 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
A burst pipe or roof failure can grow mold within days in Eureka's damp climate. 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
Serving Eureka and Northern California.
North State Pure Maintenance is based in Eureka and treats homes and businesses across Humboldt County and seven neighboring counties.
Humboldt County
Eureka, Arcata, McKinleyville, Fortuna, Ferndale, Rio Dell, Trinidad, Garberville, Bridgeville
Del Norte County
North Coast
Trinity County
North Coast
Siskiyou County
Shasta Cascade
Shasta County
Redding & the Shasta Cascade
Modoc County
Shasta Cascade
Lassen County
Sacramento Valley North
Tehama County
Red Bluff & the Sacramento Valley North
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 in Eureka.
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.