Mold Remediation for
Property Management
Companies in California
When a tenant reports mold, you're on the clock legally. Alliance Environmental Services provides certified mold remediation for California property managers — with fast scheduling, clearance reports, and full compliance documentation to protect your portfolio.
The Legal Reality
MOLD IN A RENTAL UNIT IS A LEGAL LIABILITY — NOT JUST A MAINTENANCE ISSUE
Under California Health & Safety Code §17920.3, visible mold is classified as a substandard condition in rental housing. Property owners who fail to remediate mold can face habitability claims, rent withholding, and significant legal exposure — especially if a tenant documents the issue.
The difference between a surface clean and a certified remediation is the documentation. Alliance Environmental Services provides clearance reports, air sampling data, and full compliance packages that protect you if a claim is ever filed.
What We Provide
CERTIFIED MOLD REMEDIATION — START TO FINISH
Every project follows a documented process designed to protect your tenants, your property, and your legal standing.
Certified inspectors identify mold species, extent of growth, and moisture sources. Air sampling available for pre/post documentation.
We isolate affected areas with physical barriers and negative air pressure to prevent cross-contamination to other units.
Complete removal of mold-affected materials — drywall, insulation, framing — and antimicrobial treatment of all surfaces.
We identify and document the root cause — leaks, HVAC condensation, ventilation failures — and provide recommendations to prevent recurrence.
Written clearance documentation confirming the space is safe for re-occupancy. ~60% of projects include post-remediation air sampling.
24–48 hour scheduling for property management clients. We understand that vacancy costs money and prioritize your timeline.
HOW IT WORKS — FROM CALL TO CLEARANCE
Describe the property and issue. We'll schedule an inspection within 24–48 hours.
Certified inspector assesses the mold, identifies the moisture source, and provides a written scope and quote.
Licensed crew completes the work — contained, documented, and minimizing your vacancy window.
You receive a full compliance package: clearance report, disposal documentation, and any air sampling results.
Certifications & Credentials
About Alliance
CALIFORNIA'S ENVIRONMENTAL REMEDIATION PARTNER SINCE 1995
Alliance Environmental Services was founded in 1995 by Willy Irwin — a CA Certified Asbestos Consultant (CAC) — with a mission to deliver the highest standards of safety and compliance to California property owners. We've completed 500+ projects across Northern and Central California.
We're a family-run business. Willy oversees all major projects. Elaine manages client relationships and ensures every job meets our quality standards. Trevor, our CDPH Certified Lead Assessor, handles estimating with precision. When you work with Alliance, you work with the people who actually run the jobs.
Trusted Since 1995.
FAQ
MOLD REMEDIATION — PROPERTY MANAGER QUESTIONS
Is mold remediation required by California law for rental properties?
California Health & Safety Code §17920.3 classifies visible mold as a substandard condition in rental housing. Property owners are legally required to remediate mold that poses a health risk to tenants. Failure to act can result in habitability claims, rent withholding, and significant legal liability.
How long does mold remediation take in an apartment unit?
A typical single-unit mold remediation takes 1–3 days depending on the extent of growth and whether structural materials (drywall, framing) need to be removed. Alliance Environmental Services works to minimize vacancy time while ensuring thorough, certified remediation.
Do you provide clearance reports for property managers?
Yes. Every mold remediation project closes with a written clearance report documenting that remediation is complete and the space is safe for re-occupancy. Approximately 60% of our projects include pre- and post-remediation air sampling. We advise on what's appropriate for each situation.
What's the difference between mold removal and mold remediation?
"Mold removal" is a common term but technically inaccurate — mold spores are always present in the environment. Certified mold remediation returns mold levels to normal background levels, addresses the moisture source, and prevents recurrence. Alliance performs full remediation, not surface-level cleaning.
Do you serve property management companies managing multiple properties?
Yes. We work with property management firms managing portfolios of any size across Northern and Central California. We offer volume pricing for firms managing 10+ units and can coordinate multi-property schedules with a single point of contact.
What causes mold in apartment buildings?
The most common causes in multifamily properties are: roof or plumbing leaks, HVAC condensation, inadequate ventilation in bathrooms and kitchens, and water intrusion through foundations or windows. Alliance identifies and documents the moisture source as part of every remediation.
Service Area
MOLD REMEDIATION FOR PROPERTY MANAGERS ACROSS CALIFORNIA
Alliance Environmental Services serves property management companies throughout Northern and Central California. We coordinate multi-property portfolios with a single point of contact.
Don't see your city? Call us at 530-345-8562 — we serve all of Northern and Central California.
NEED MOLD REMEDIATION FOR YOUR PROPERTIES?
Free site assessment. No obligation. We'll schedule within 24–48 hours and have a scope and quote to you the same day.
Alliance Environmental Services · CA DOSH Reg. #1090 · Licensed Since 1995 · Chico, CA