Business Details
46 Years
experience
Emergency
services
Specialized Mold & Allergen Remediation Services
BioClean was founded in 1980 as a family-owned business initially focused on carpet, upholstery, and window cleaning. Over four decades, we evolved to address critical indoor air quality needs for individuals with heightened sensitivities to environmental toxins. Our proprietary combination of technologies targets microscopic health hazards like mold, mycotoxins, bacteria, and allergens in hard-to-reach areas including HVAC systems, crawlspaces, and attics. We specialize in whole-home decontamination using ClO2 fumigation, a method proven to achieve 92-100% reduction of contaminants. Our team holds multiple industry certifications including NORMI, NCMA, and NCMR.We serve Northern California with a commitment to creating healthier living environments through scientific precision and personalized service. Our processes eliminate the need for extensive demolition in most cases, preserving personal belongings while achieving medical-grade sanitation. We prioritize transparency, providing pre- and post-remediation testing to verify results. Our 45-year legacy stems from listening to client needs and developing solutions that address both visible contamination and invisible health threats. Today, we remain dedicated to advancing remediation science while maintaining the personalized service that defines our family business.
Services
Mold Remediation
Allergen Removal
ClO2 Fumigation
Emergency Decontamination
HVAC Cleaning
Post-Construction Cleaning
VOC Reduction
Attic Insulation Replacement
Crawlspace Remediation
Bioprotection Treatment
Details
- Year established: 1980
Highlights and features
- We developed proprietary ClO2 fumigation proven to neutralize 92-100% of contaminants
- Our certified technicians hold multiple industry-specific credentials
- We provide pre- and post-remediation testing verification
- Our whole-home approach addresses contaminants in HVAC systems and crawlspaces
- We preserve personal belongings through non-destructive remediation methods
Associations and certifications
- NORMI
- NCRSI
- NCMA
- NCMR
- NCEAA
- NCMP
What people say
Life-saving treatment
Symptoms disappeared
Exceptional customer service
Medical-grade results
Non-invasive solutions
Services
Mold Remediation
Our mold remediation service addresses hidden mold contamination in building materials and HVAC systems. Using IICRC s520 standards, we remove contaminated materials while preserving structural integrity. The process includes pre-remediation inspection, HEPA vacuuming, wet cleaning, and post-remediation verification testing. Our proprietary ClO2 fumigation reaches inaccessible areas to neutralize remaining spores and mycotoxins. This comprehensive approach creates safer environments for individuals with mold sensitivities.
ClO2 Fumigation
Chlorine dioxide (ClO2) fumigation neutralizes microscopic contaminants throughout entire structures. The gas penetrates insulation, furniture, and wall cavities to eliminate mold, bacteria, and allergens. This EPA-verified method achieves 92-100% reduction of contaminants without requiring demolition. The process treats HVAC systems, crawlspaces, and personal belongings simultaneously. No residual chemicals remain after treatment, making it safe for sensitive individuals. This non-invasive solution preserves personal property while achieving medical-grade sanitation.
Allergen Remediation
Our allergen remediation targets protein-based contaminants like dust mites, pet dander, and pollen. The three-step cleaning process removes both visible and microscopic particles from all surfaces. We test for specific allergens (Der p 1, Fel d 1, Can f 1) to create targeted treatment plans. Post-remediation testing confirms allergen reduction to safe levels. This service benefits individuals with asthma and allergies by creating cleaner indoor environments. The whole-home approach ensures comprehensive contaminant removal from HVAC systems and hard-to-reach areas.
Emergency Decontamination
Emergency decontamination services address viral and bacterial outbreaks in residential and commercial spaces. We use hospital-grade disinfectants and advanced technologies to neutralize pathogens like norovirus and MRSA. The process includes volatile organic compound (VOC) removal to eliminate chemical pollutants. Our rapid response team treats high-touch surfaces and hidden contamination areas. This service helps prevent re-infection in homes, schools, and workplaces. We provide documentation of decontamination completion for peace of mind.
Assessment & Testing
Our assessment services identify hidden environmental contaminants through visual inspections and laboratory testing. We analyze air, surface, and wall cavity samples for mold, mycotoxins, and allergens. The process includes moisture mapping to locate water intrusion sources. We use ERMI and EMMA analysis for comprehensive allergen profiling. Post-remediation testing verifies treatment effectiveness. This data-driven approach ensures complete contaminant removal while documenting results for clients and healthcare providers.
People
John Watt
Owner & Founder
John Watt founded BioClean in 1980 and pioneered its proprietary remediation methods. With over 45 years in the cleaning industry, he transitioned focus to address environmental health needs for sensitized individuals. His certifications include NORMI and NCMA credentials. John personally oversees complex remediation projects and consults with clients on health-focused solutions. He maintains active involvement in research and development of new remediation technologies.
Questions
What makes BioClean different from other remediation companies?
We specialize in treating environments for sensitized individuals using proprietary ClO2 fumigation that neutralizes 92-100% of contaminants. Our certified technicians focus on microscopic toxins that conventional methods miss.
Do you handle both residential and commercial properties?
We primarily serve residential clients but also handle commercial properties requiring specialized remediation for environmental toxins and allergens.
How long does the remediation process take?
Most residential projects complete in 1-3 days depending on contamination severity. ClO2 fumigation typically requires 6-8 hours with additional time for preparation and post-treatment verification.
Is the ClO2 fumigation process safe?
Yes, our EPA-verified ClO2 process leaves no residue and is safe for structures when properly administered by our certified technicians. The gas neutralizes contaminants without requiring demolition.
Do you provide testing services?
We offer comprehensive pre- and post-remediation testing including mold, mycotoxins, allergens, and VOCs. Our lab-certified analysis documents contamination levels before and after treatment.
What areas do you service?
We serve all Northern California counties including Marin, San Mateo, Santa Clara, San Francisco, and San Jose counties with emergency response capabilities.
Reviews (4)
Robert S.
Apr 12, 2022
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I've been in the commercial real estate business for 38 years. In my time working with the biggest and most demanding tech companies in Silicon Valley who can afford the best and most expensive vendors, I've never come across a more knowledgeable, responsive and true professional than John and his team at Good Housekeeping. He has been cleaning all of the carpets in our mid-peninsula family home for over 10 yrs.
Good Housekeeping got us through the slime craze with our daughter when she was young, thru puppy house breaking stage with our lab. Good Housekeeping really understands the chemistry involved in cleaning and protecting carpets. I whole heartedly and strongly recommend Good Housekeeping to family, friends and associates.
Good Housekeeping got us through the slime craze with our daughter when she was young, thru puppy house breaking stage with our lab. Good Housekeeping really understands the chemistry involved in cleaning and protecting carpets. I whole heartedly and strongly recommend Good Housekeeping to family, friends and associates.
Larry Fisher
Mar 18, 2022
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John Watt of Good Housekeeping has been my go to carpet cleaner for over 20 years of service. He cleans the carpeting for all of the property management account properties ( San Mateoi Real Estate, Inc) that we property manage. His work, atttention to detail and customer service is exemplary. We manage a number of rental properties and Good Housekeeping is able to clean the carpets and save my clients the expense of installing new carpets.
Please call John Watt of Good Housekeeping for your carpet cleaning needs. John Watt is also licensed in MOLD REMEDIATION and we just used him to address a severe and hazardous mold issue at a property that we now manage. John's service included indoor Air Quality Testing, Multi-step cleaning process for the removal mold and hazardous particles. I will continue to use the services of John Watt and Good Housekeeping for our carpet cleaning and Mold Remediuatrion needs. Thank you John for your customer service and professionalism.
Please call John Watt of Good Housekeeping for your carpet cleaning needs. John Watt is also licensed in MOLD REMEDIATION and we just used him to address a severe and hazardous mold issue at a property that we now manage. John's service included indoor Air Quality Testing, Multi-step cleaning process for the removal mold and hazardous particles. I will continue to use the services of John Watt and Good Housekeeping for our carpet cleaning and Mold Remediuatrion needs. Thank you John for your customer service and professionalism.
Allison Templeton
Jan 10, 2018
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I have used good housekeeping for many, many years for carpet, upholstery and tile cleaning. They are polite, professional and effective. Highly recommend.
Joan Tabb
Mar 20, 2014
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No one could get the stains out of our doggie stained carpet until GOOD HOUSEKEEPING came along. And not only did they remove all stains, and it appears they are staying out for good, but they also cleaned our living room furniture and amazingly made eight year old furniture look brand new! I have never been inspired to write about a cleaning company till now. But Good Housekeeping does need to change their name. IT should be called GREAT HOUSEKEEPING :
