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    Verified mold testing and remediation services reviews

Top-Rated Mold testing and remediation specialists in Riverside - Updated Nov 2026

Avatar for 911 Certified Mold Testing LLC
911 Certified Mold Testing LLC
5.0(
8
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Riverside, CA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"A few months ago I used 911 certified mold testing for my home they were referred to me by my plumber. I had a great experience dealing with this company they were very professional and knowledgeable about mold testing. They were also reasonable in their pricing! I highly recommend using this company for mold testing."
Response time4 hrs
Response rate93%
1 neighbors recently requested a quote
Avatar for Night And Day Restoration LLC
Night And Day Restoration LLC
5.0(
5
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Riverside, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

Night & Day Restoration LLC specializes in water damage restoration and professional mold testing. Whether you're dealing with a leak, flooding, moisture concerns, or suspected mold, our team will assess the situation, explain what we find, and recommend the right next step.\nWe provide water extraction, structural drying, moisture detection, HEPA air filtration, mold air and surface testing, odor treatment, and structural cleaning. Our team is IICRC Water Restoration Technician (WRT) certified, and we pride ourselves on fast communication, detailed documentation, honest recommendations, and treating your home like it’s our own.\n

47 neighbors recently requested a quote
Pacific Environmental & Abatement Solutions Inc
4.6(
10
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business+2 more

Serving Riverside, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"This is my first time leaving a review for a company as I've never felt the need to, but using Pacific Environmental I feel I should share with my home owners. My husband and I bought out first home which we love but a room had acoustic ceiling. I reach out to PEAS, which everyone in the office was very helpful and patient on guiding me through this experience. Their scheduling was amazing as I was dealing with Closing Escrow and moving my family in. Once they arrived, they informed me on the scope of work and what they would be doing and what to expect, this being my 8-year-old son room so I was a bit worried on hazardous material that was being removed and used. CONTAINMENT WAS AMAZING! I was so happy and felt so safe on how they kept the area and the protection they took to take care of my family and themselves. My kids thought the crew looked pretty cool too, haha. CLEANING WAS AMAZING! Work was conducted upstairs and they went the extra mile and cleaned everything they touched, I really appreciate that, as it again made me feel secure and safe. PEAS left a memorial memory our kids still talk about. I strongly recommend them and would use them again."
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for NexGen Property Restoration
NexGen Property Restoration
5.0(
9
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Riverside, CA and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Ongoing water intrusion from our windows over the years led to mold issues throughout several rooms in the house. After bringing out three different companies to evaluate the situation, Steven and the team at Nexgen Property Restoration stood out right away. They were fair on pricing and offered a non insurance discount since we chose to handle everything out of pocket. With multiple areas needing to be opened up, that savings really helped. The remediation process was handled professionally from start to finish and the quality of work gave us the confidence to move forward with them for reconstruction as well. Having one company manage everything made the process a lot easier. The final result came out great and their warranty gives us peace of mind moving forward. Definitely recommend Nexgen if you?re dealing with paying out of pocket"
29 neighbors recently requested a quote
Sav-on Home Improvement
3.3(
211
)
Mold & Toxic Material TestIndoor Air Quality Testing

Serving Riverside, CA and surrounding areas

Approved

In business since 1982

Free estimates

Emergency services offered

"SavOn/Ivan came out immediately and tested the area in question. I had mold in my dining room ceiling, not airborne thank God; but mold none the less needing remediation. SavOn completed the remediation in about 4 days and were very thorough, professional and attentive. Taylor in the office and Ivan in the field provided excellent service. SavOn was a little pricey but not as astronomical as the other companies. My project is not yet completed due to a lack of funds on my part but the cosmetic repairs will be completed soon and I'll keep you posted on the progress. Angel A"
grey hawk shower
val vista lakes shower
Response time9 hrs
41 neighbors recently requested a quote
Recommended by80%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

Mold can grow anywhere in a home where moisture accumulates and doesn't dry out, particularly in areas with poor ventilation. Common materials affected include insulation and drywall. The most frequent locations for mold growth are attics, basements, crawl spaces, wall cavities, bathroom and kitchen walls, exposed foundations, windows and window sills, air conditioning and heating vents, and around fireplaces and chimneys.

The signs of asbestos exposure are often subtle and may not appear for many years, or even decades, after initial contact. This long latency period is one of the primary dangers associated with asbestos.

When symptoms do manifest, they can include:

  • Shortness of breath

  • A persistent, dry cough

  • Chest pain or tightness

  • Fatigue

  • Wheezing

  • Weight loss

  • Difficulty swallowing

  • A dry, crackling sound from the lungs when breathing

These symptoms are non-specific and can be mistaken for other respiratory conditions, making diagnosis challenging. Prolonged exposure can lead to serious diseases as the asbestos fibers cause scarring and inflammation in the lungs. These conditions include asbestosis, lung cancer, and mesothelioma.

Due to the vague nature of early symptoms, regular medical check-ups are crucial for anyone with a known history of asbestos exposure, particularly in an occupational setting. If you suspect asbestos is present in your home, a professional inspection is recommended.

Eliminating mold from wood permanently poses a challenge as the mold spores have the ability to deeply penetrate the porous wood surface. While surface mold can be effectively eradicated with proper cleaning and preventative measures, it's difficult to guarantee its non-recurrence under favorable conditions. To prevent mold from reappearing, it is important to identify and resolve the root cause of the moisture that triggered mold growth initially.

Ensuring appropriate ventilation and a dry environment, or consider applying protective finishes such as sealant, varnish, or paint to prevent future moisture penetration and mold growth. Consistently inspect and maintain the area to keep the wood free from mold in the long term.

If a professional mold inspector finds mold in your home, they’ll conduct mold testing to determine the type of mold species and the number of spores in your home. This plan will help develop a remediation plan, where a mold remediation specialist will remove the spores from your home. Since mold remediation costs the average homeowner $2,225, it’s best to treat mold at the first sign rather than waiting.

If you believe mold is hidden somewhere in your home, don’t delay inspecting it, as it can be dangerous, especially to people with breathing problems and allergies. While it’s possible to learn how to check for mold yourself, we advise most people to hire a professional mold inspector, who can look more thoroughly. You can also purchase mold test kits if you aren’t sure if your home has mold, but a true human inspector is still your best bet.

The Riverside, CA homeowners’ guide to mold testing and remediation services

From average costs to expert advice, get all the answers you need to get your job done.