4.8 
12 *The Angi rating for Mold Testing And Remediation companies in Brea, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Mold Testing And Remediation needs.
*The HomeAdvisor rating for Mold Testing And Remediation companies in Brea, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Mold Testing And Remediation needs.
Last update on July 09, 2026
Serving Brea, CA and surrounding areas
Approved
In business since 2014
Emergency services offered
Small jobs welcome
"Mold Neutralizers is FANTASTIC! Lee is so dedicated to what he does, and goes above and beyond for his customers. We will definitely use this company in the future!"
+5
Serving Brea, CA and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"Best price for mold testing. Very easy to work with and completed the job quickly. All mold was removed in a few hours. Love the guarantee thier work."
Serving Brea, CA and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Had to rip walls down again after mold service was completed and found there was still mold that was not removed."
Serving Brea, CA and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"A few months ago I used 911 certified mold testing for my home they were referred to me by my plumber. I had a great experience dealing with this company they were very professional and knowledgeable about mold testing. They were also reasonable in their pricing! I highly recommend using this company for mold testing."
Serving Brea, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2011
Free estimates
Warranties offered
"Not only did Matt and his crew do an excellent job but they went above and beyond their excellent service."
+6
Serving Brea, CA and surrounding areas
Approved
In business since 2018
Emergency services offered
Small jobs welcome
"Every step of the way was punctual, professional and well explained. I would recommend Mold Test Company to anyone."
+71
Serving Brea, CA and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
Night & Day Restoration LLC specializes in water damage restoration and professional mold testing. Whether you're dealing with a leak, flooding, moisture concerns, or suspected mold, our team will assess the situation, explain what we find, and recommend the right next step.\nWe provide water extraction, structural drying, moisture detection, HEPA air filtration, mold air and surface testing, odor treatment, and structural cleaning. Our team is IICRC Water Restoration Technician (WRT) certified, and we pride ourselves on fast communication, detailed documentation, honest recommendations, and treating your home like it’s our own.\n
Serving Brea, CA and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"They were very courteous and helpful in explaining each step of the process."
+9
Serving Brea, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Emergency services offered
Small jobs welcome
"Excellent verbal and written communication. Timely LAB Report for three AIRBORNE tests for mold. A professional approach in offering additional services to help the customer with mold remediation."
Serving Brea, CA and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Original estimate, management and office staff, arrival and completion time, care of customer's property, clean-up and price were all excellent.
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