First Onsite is a leading commercial disaster restoration and reconstruction company serving all 50 U.S. states and Canada. We specialize in water damage restoration, fire and smoke damage, mold remediation, and full property reconstruction for healthcare, education, retail, and more. Available 24/7, 365 days a year, our teams respond fast to minimize downtime and business interruption. With 110+ locations across North America, we combine local response with national resources at any scale. Contact us today at 800.622.6433 to build your pre-loss plan or get emergency help now.
Details
Onsite servicesAvailable
On-site parkingAvailable
Location
Certified by FIRST ONSITE Property Restoration • Apr 12, 2026
Certified by FIRST ONSITE Property Restoration • Apr 12, 2026
MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
Reviews
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7 reviews
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jessica Los Angeles
Nov 1, 2024
5.0
This Company was Sent by Management of My Apartment Complex After Formally Notifying them with a Complaint About The Serious Health Concern from water Leakage Entering the Home Through the Walls, from The Boiler room Adjacent to Us (It's a Multi-Unit Community) these Guys Came, Did what They Had to Do, gave us Instructions for the Equipment that was to Stay Running, Cleaned up and Left. Nothing more nothing less, And were such a pleasure to Have, I'd Gladly Invite All Crew members In The Home Again. I was Treated with Courtesy and Respect, and The Issues Where Handled As Told. Thank you Fist on Site, I'll Be sure to Request you guys again for any future issues. Very pleased with The Quick and Professional Service Provided! 💯🙏😇 It's unfortunate that the Few Unsatisfied Individuals only express Negative Feedback, and Not What a positive Experience for a Job Well Done. As I'm Sure this Company Has Been Around and Done there Share of
Quality work. But if your Having Second Thought About This Place Just check the Badge ✴️ on These Reviewers Pictures. It's easy To Defame Others and Hide Behind The Screen, when your Small, But When you Put The Effort In To Something and Take The Time Needed to Actually Grow and Build yourself. You'll Start To Think Differently About Scrutiny.
- Keep it up Guys!
Sincerely, another Small Entrepreneur Trying to Make There Mark 🌐
AR
Alma Rodriguez
Oct 9, 2024
1.0
I don’t usually write negative reviews, but what this company did to my father is simply not right.
After my father’s house burned down, First Onsite came out and promised him the world so they could secure the job. Since he had never gone through anything like this before, he placed his trust in them. In the beginning, they communicated efficiently, but over time, things started falling apart. Employees would quit, they wouldn’t show up as scheduled, and we were constantly left in the dark, not knowing who to speak to.
One particular site supervisor, Joe, treated my father differently just because he didn’t speak Spanish. To say the least, Joe’s behavior was racist and completely unprofessional. My father felt disrespected throughout the process. On the other hand, Aaron, one of the employees, did try to help, but unfortunately, he moved positions and we lost our only reliable contact.
We paid the entire amount due back in July, but as of today, they still have not removed the lien they claimed they had to put on the home. Despite multiple emails, they’ve completely forgotten—or neglected—to take it off. This whole experience has been frustrating and disheartening. I wouldn’t recommend First Onsite to anyone going through such a difficult time.
AM
Alexander Moreno
Jan 27, 2020
1.0
Interstate Restoration is a company with unethical business practices to say the least. As a subcontractor my experience has been extremely poor. The admin staff does not return calls, or emails to resolve payments delays. The project manager promised to get payment resolved and failed to do so. In fact, when I advised the project manager that I would have to file small claims action, his response "do what you have to do".
As it turns out that I was not the only vendor that performed work for Interstate Restoration and did not get paid for the services. It's a shame that a company profits by not paying vendors.
Frequently Asked Questions About FIRST ONSITE Property Restoration
What services does FIRST ONSITE Property Restoration offer?
FIRST ONSITE provides disaster restoration and property reconstruction services, including disaster mitigation, storm restoration, water damage restoration, fire and smoke restoration, mold damage restoration, and building restoration.
Where is FIRST ONSITE Property Restoration located?
They are located at 385 S. Acacia Ave., Fullerton, CA 92831, USA.
What are the operating hours of FIRST ONSITE Property Restoration?
They operate 24 hours a day, 7 days a week, 365 days a year for emergency response. Administration offices are closed on evenings and weekends.
Does FIRST ONSITE offer emergency services?
Yes, they provide 24/7 emergency response service throughout the year to quickly address disaster situations.
How can I contact FIRST ONSITE Property Restoration?
You can contact them by phone at +1 714-978-6400 or visit their website at https://firstonsite.com/locations/view/us/ca/fullerton/385-s-acacia-ave.
What industries does FIRST ONSITE serve?
They serve a variety of essential industries including healthcare, education, retail, residential, and more.
Is FIRST ONSITE Property Restoration available on social media?
Yes, they have a presence on LinkedIn, Facebook, Instagram (@first.onsite), and Twitter (@firstonsite).
What nearby services are available around FIRST ONSITE Property Restoration?
Nearby you can find Bestrux Mobile Truck and Trailer Repair, an automotive and truck repair service ideal for emergency roadside assistance and trailer repairs.
Are there community organizations near FIRST ONSITE Property Restoration?
Yes, the Red Hat Society, a community service and charity organization, is located nearby, providing opportunities for social and charitable engagement.
What healthcare facilities are near FIRST ONSITE Property Restoration?
Integrated Healthcare medical centers are located nearby, offering medical services which might be useful in case of disaster-related injuries or health concerns.
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