We are FIRST ONSITE, a leading disaster restoration and property reconstruction company serving North America and beyond. We offer comprehensive, coast-to-coast coverage and service across all 50 United States and Canada, with the equipment, technology and expertise to respond to disasters of all kinds. We’re proud to provide expert planning, remediation, restoration and reconstruction services for essential industries of every kind: including healthcare, education, retail, residential and more.
24/7 Emergency Response, No Matter What
In an emergency, every second counts, so our team of professionals is always ready to rapidly respond. With 24/7 emergency service, 365 days a year, your call for help is our call to action. Our speed and efficiency is paired with an unwavering commitment to safety, so we can reduce business interruption and downtime, while getting you back to normalcy as quickly as possible.
Personalized Service Meets National Resources
Our client partners experience the best of both worlds when they team up with us: direct, local service and a fully customized approach, backed by the power of our national-scale resources. Our team’s unique scalability and robust offerings means we can power our partners through any challenge that come your way—whenever, wherever and whatever it takes.
Our Human-Powered Difference
Our speed, scope and scale are unmatched, but it’s our people that make the real difference—we like to call it our human-power. Our company is purpose-driven and values-led, and that comes through in how we work with you and with one another. As your dedicated partner, we’re committed to going the extra mile to provide the best possible service. Acting with urgency and accountability, our team of professionals is dedicated to doing the right thing, always. It’s our goal to be so responsive, capable, efficient and supportive that we are the only partner our clients ever need.
Together, we will help you Restore, Rebuild and Rise.
Details
Requires appointmentNot available
Online appointmentsAvailable
On-site parkingAvailable
Wheelchair accessible entranceAvailable
Location
Certified by FIRST ONSITE Property Restoration • Feb 22, 2026
Certified by FIRST ONSITE Property Restoration • Feb 22, 2026
Reviews
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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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