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Los Angeles County

Water Damage, Mold and Restoration Companies in Diamond Bar, CA

Diamond Bar, CA has 6 restoration and remediation companies in our listings, 4 list themselves as open 24 hours and the most reviewed is Roto-Rooter Plumbing & Water Cleanup with 477 reviews.

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All 6 Companies in Diamond Bar

Sorted by distance from the middle of Diamond Bar by default. Use the buttons to sort by reviews or filter by service.

  1. 1

    Roto-Rooter Plumbing & Water Cleanup24/7

    1200 S Diamond Bar Blvd · Diamond Bar 0.0 mi

    Google rating 4.9 from 477 Google reviews Yelp 4.4

    Top Rated 2026Most Reviewed 2026

    Water DamageMoldMold TestingSewage

  2. 2

    SERVPRO of Diamond Bar/South Pomona24/7

    1249 S Diamond Bar Blvd #313 · Diamond Bar 0.1 mi

    Google rating 5.0 from 276 Google reviews Yelp 4.7 · BBB profile

    Top Rated 2026

    Water DamageMoldFire and SmokeSewageBiohazard

  3. 3

    HydroNest Pros24/7

    324 S Diamond Bar Blvd · Diamond Bar 1.3 mi

    No public reviews yet

    Verified Remediation Pro

    Water DamageMoldSewage

  4. 4

    Safety Services Management, LLC

    1370 Valley Vista Dr Suite 200 · Diamond Bar 1.6 mi

    Google rating 5.0 from 4 Google reviews

    Verified Remediation Pro

    Water DamageMoldMold TestingFire and SmokeBiohazard

  5. 5

    Surf Pro24/7

    23648 Bower Cascade Pl · Diamond Bar 2.0 mi

    Google rating 4.5 from 2 Google reviews

    Verified Remediation Pro

    Water Damage

  6. 6

    Andy's Carpet Care

    Service area business · Diamond Bar 3.6 mi

    Google rating 5.0 from 42 Google reviews

    Top Rated 2026

    Water DamageOdor

Reviews on Other Sites in Diamond Bar

On Angi

We did not find an Angi profile we could match to a company here yet.

Have a BBB Profile (1)

Also matched here, 2 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 Diamond Bar

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.

JobTypical in Diamond BarNational 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

Full Los Angeles County cost guide

Water and Fire Risks in the Valleys

Summer heat in the San Fernando and San Gabriel valleys means air conditioners run hard, and a clogged condensate line can flood a hallway ceiling or a closet quietly. Check the drain line and the pan under an attic air handler before summer.

Neighborhoods against the foothills see wildfire smoke and, after a fire, mud and debris flows in heavy winter rain. Keep a plan for sandbags and know which way water runs off the slope behind you.

Read the full Los Angeles County guide

Questions People Ask

How many water damage and mold companies serve Diamond Bar?
We list 6 companies in Diamond Bar, CA. 1 of them work from a service area without a public storefront.
Which water damage and mold companies in Diamond Bar are open 24 hours?
4 list themselves as open around the clock, including Roto-Rooter Plumbing & Water Cleanup, SERVPRO of Diamond Bar/South Pomona and Surf Pro. Hours are self reported, so call to confirm someone answers at night.
Who has the best reviews in Diamond Bar?
Among companies with at least 20 public reviews, the highest rated are SERVPRO of Diamond Bar/South Pomona (5.0 from 276), Andy's Carpet Care (5.0 from 42) and Roto-Rooter Plumbing & Water Cleanup (4.9 from 477). A high rating from a small number of reviews is weaker evidence than a slightly lower rating from hundreds.
What should I do before a company arrives in Diamond Bar?
Stop the source if you safely can, shut off power to wet areas at the panel only if you are standing somewhere dry, photograph everything, and move valuables out of the water. Our step by step guide covers the first hours in detail.

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