Los Angeles County
Water Damage, Mold and Restoration Companies in Ontario, CA
Ontario, CA has 1 restoration and remediation company in our listings, 1 list themselves as open 24 hours and the most reviewed is Roto-Rooter Plumbing & Water Cleanup with 1,439 reviews.
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All 1 Company in Ontario
Sorted by distance from the middle of Ontario by default. Use the buttons to sort by reviews or filter by service.
- 1
Roto-Rooter Plumbing & Water Cleanup24/7
Google rating 4.8 from 1,439 Google reviews Yelp 3.3
Top Rated 2026Most Reviewed 2026
Water DamageMoldMold TestingSewage
More Companies Near Ontario
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SERVPRO of Upland/San Antonio Heights24/7
Google rating 4.6 from 35 Google reviews
Highly Rated 2026
Water DamageMoldFire and SmokeSewageBiohazard
- 4
24/7 WATER DAMAGE RESTORATION - FONTANA AND RANCHO24/7
Google rating 5.0 from 37 Google reviews
Top Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
- 5
Haven Cleaning and Restoration24/7
Google rating 4.7 from 66 Google reviews Yelp 3.9 · Facebook 5.0 · BBB profile
Top Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
- 6
Blue Arrow24/7
Google rating 5.0 from 19 Google reviews
Highly Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
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ALL US Mold Removal & Remediation Upland CA24/7
Google rating 5.0 from 3 Google reviews
Verified Remediation Pro
Water DamageMoldMold TestingFire and SmokeSewage
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Cut N Dry Restoration24/7
Google rating 4.5 from 156 Google reviews
Highly Rated 2026Most Reviewed 2026
Water DamageMoldFire and SmokeSewageBiohazard
Reviews on Other Sites in Ontario
On Angi
We did not find an Angi profile we could match to a company here yet.
BBB
We did not find a BBB profile we could match to a company here yet.
Also matched here, 1 on Yelp. Those show on each company row above.
A BBB profile is a listing with the Better Business Bureau. It is not the same as BBB accreditation. We only list a profile when its name and city match the company.
What It Costs Around Ontario
Prices in the Los Angeles-Long Beach-Anaheim, CA area run about 14 percent above the national average, so local jobs tend to cost more than the national figures.
| Job | Typical in Ontario | National typical |
|---|---|---|
| Water Damage Restorationper job, a single room of clean water | $1,150 to $3,400 | $1,000 to $3,000 |
| Mold Remediationper job, a typical professional job | $1,700 to $6,800 | $1,500 to $6,000 |
| Mold Inspection and Testingper visit, a visual inspection | $225 to $700 | $200 to $600 |
| Fire and Smoke Damage Restorationper room, light smoke cleaning | $550 to $2,800 | $500 to $2,500 |
| Asbestos Testing and Abatementper job, a single area in a home | $1,350 to $5,700 | $1,200 to $5,000 |
| Lead Paint Testing and Abatementper visit, an XRF inspection of a typical home | $350 to $800 | $300 to $700 |
| Hoarding Cleanupper job, light clutter in a few rooms | $1,150 to $3,400 | $1,000 to $3,000 |
Water Damage in Older Los Angeles Buildings
Much of central Los Angeles was built before 1980. Galvanized pipes rust from the inside and fail at the threads, and cast iron drains crack under slabs. Leaks between floors in apartment buildings are common, so find out quickly whether the source is in your unit or above it.
Before any demolition in an older building, test popcorn ceilings, old flooring and plaster for asbestos and lead. A water job that disturbs them becomes a much bigger job.