FIRST ONSITE Property Restoration

What They Do

Water DamageMoldMold TestingFire and SmokeBiohazardStormOdorContents

• Fire damage cleanup & repair
• Mold inspection
• Plumbing
• Remodeling
• Water damage-related cleanup & repair
• Water damage-related mold removal
• 24 Hr Emergency Response
• Assisted Living
• Building Repair
• Business Cleaning
• Catastrophic Event Restoration
• Climate Control
• Commercial Contracting
• Commercial Properties
• Commercial Restoration
• Comprehensive Reconstruction Services
• Content Recovery
• Content Restoration
• Customer Support
• Damage Control
• Deep Clean
• Demolition Services
• Disaster Cleanup
• Disaster Planning
• Disaster Recovery
• Disaster Recovery Plan
• Disaster Response
• Disaster Restoration Services

In Their Own Words

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.

Written by the business on its public profile. We have not verified these claims.

Before You Call FIRST ONSITE Property Restoration

1. Do you take moisture readings every day and will you give me the drying log?
2. Are your technicians certified in water damage restoration?
3. Where do you think the moisture is coming from, and who fixes it?
4. Will you set up containment and negative air, and how will you protect the rest of the home?
5. Do you also do remediation? If so, who checks your work?

Ask for a California contractor license number and look it up with the Contractors State License Board. Also ask for proof of insurance and industry certification for the restoration crew.

How Their Reviews Break Down

Counts from public listings as of September 23, 2026. A handful of reviews says less than a few hundred.

Read This While You Wait

• DIY with careWhat to Do in the First 24 Hours After Water DamageAn hour by hour plan for the first day after water damage. Make it safe, stop the source, document, remove water and start drying before mold can start.
• DIY with careSafe DIY Mold Cleanup for Areas Under 10 Square FeetA step by step method to clean up mold under 10 square feet safely, with the gear to buy, what to throw away, why bleach is not the default, and when to stop.
• Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
• Call a proThe First 48 Hours After a House FireWhat to do in the first two days after a house fire. Safe re-entry, utilities, insurance calls, securing the home, food, medicine and what never to clean.